How Does A Laser Scanner Work

How Does A Laser Scanner Work
How Does A Laser Scanner Work Image link: https://commons.wikimedia.org/wiki/File:VIUscan_handheld_3D_scanner_in_use.jpg
C O N T E N T S:

KEY TOPICS

  • Laser scanners work the same way as pen type readers except that they use a laser beam as the light source and typically employ either a reciprocating mirror or a rotating prism to scan the laser beam back and forth across the bar code.(More...)

POSSIBLY USEFUL

  • LiDAR is a remote sensing technology which uses the pulse from a laser to collect measurements which can then be used to create 3D models and maps of objects and environments.(More...)

RANKED SELECTED SOURCES

KEY TOPICS

Laser scanners work the same way as pen type readers except that they use a laser beam as the light source and typically employ either a reciprocating mirror or a rotating prism to scan the laser beam back and forth across the bar code. [1] Delivering state-of-the-art speed and high precision, the Trimble TX6/TX8 3D Laser Scanners set new standards of performance and ease of use in high-speed collection of 3D scan data. [2] The laser scanner uses a detector to measure the reflected laser light from a surface and from this the software produces a large number of points in 3 dimensions known as a point cloud. [3] In both pen readers and laser scanners, the light emitted by the reader is rapidly varied in brightness with a data pattern and the photo-diode receive circuitry is designed to detect only signals with the same modulated pattern. [1] In recent years, however, there have been major advances in survey technology, which have provided the ability to capture scenes in three dimension to an unprecedented level of detail, using laser scanners. [4] Providence, Rhode Island-based Gilbane Building Company uses a FARO Focus 3D laser scanner. [5] A 3D laser scanner can measure several thousand points per second along the surface. [6] The laser scanner shoots a pulse of laser light at an object and accurately measures the direction. [6] The important difference between a CCD reader and a pen or laser scanner is that the CCD reader is measuring emitted ambient light from the bar code whereas pen or laser scanners are measuring reflected light of a specific frequency originating from the scanner itself. [1] The Trimble TX6 laser scanner is a cost effective solution for high speed collection of 3D data. [7] Trimble offers a comprehensive range of 3D laser scanners for the rapid collection of 3D data. [7] Unlike the simpler single- line laser scanners, they produce a pattern of beams in varying orientations allowing them to read barcodes presented to it at different angles. [1]

The use of 3-D laser scanners has garnered attention from all IDOT districts, which are continuously looking for ways to improve their work efficiencies while increasing worker safety. [8] Safety laser scanners provide a laser safety solution for safeguarding mobile vehicles and stationary applications, such as the interior of robotic work cells that cannot be solved by other safeguarding solutions. [9]

Experienced scan technicians collect millions of precise data points for a building or site with industry-leading survey-grade Leica laser scanners. [10] The 3-D laser scanner surveying method placed the crew in the field for 51.5 hours to acquire the scans, as well as lay out the benchmarks and control points for the designers and consultants. [8] The methodology of the implementation project was straightforward: identify projects in which a 3-D laser scanner could be used, followed by a comparison of time wherein personnel are exposed to traffic versus conventional methods. [8] While the post-processing time required for the laser scanner method was approximately double that of the conventional survey method, the total time to complete the project was reduced by 58.5 hours; most of the time savings was attributed to less exposure time of IDOT staff to traffic. [8] Using the laser scanner survey methods, the crew was in the field for a total of 194 hours. [8] Since jobs that involve capturing field conditions for small equipment, piping, and electrical upgrades tend to have small budgets, the use of traditional 3D laser scanners can be too costly at times. [11] He said it was too early to guess a percent savings the laser scanning will yield this time around, but that it would likely be on par or better than with George Washington because Newport News Shipbuilding has continued to invest in the laser scanners and learning how to best leverage them. [12] The emergence of handheld 3D laser scanners has been a boon for firms looking to lower costs and speed up turnaround time. [11] Now the Navy is looking to leverage that win and expand its use of laser scanners to not only cut down costs for aircraft carrier maintenance planning and execution but also tie into virtual reality trainers and other cutting-edge technologies. [12] You now know how to listen to data produced by a laser scanner, visualize the data, and transform that data into a point cloud of 3D Cartesian points (x,y,z). [13] To try the tools described in this tutorial, you'll need a source of laser scanner data. [13] By sending laser beams toward a target area, observing the reflected beam, and performing intricate calculations, the FARO Focus laser scanner can construct a data set that represents the target in three dimensions. [14] Description: This tutorial guides you through the basics of working with the data produced by a planar laser scanner (such as a Hokuyo URG or SICK laser). [13] Using laser scanners on a project isn?t necessarily cheaper up front, but it adds a ton of value to the project team because it equips them with so much information that they would not have from 2D as-built documents. [15] The IDOT implementation study?s technical review panel met after the demonstration to discuss their recent experiences with the scanners and to identify past and future projects that could be evaluated using the 3-D laser scanner. [8] "District 8 has been using the 3-D laser scanner on ADA ramp surveys and intersection surveys," Porter said. [8] In these cases, it was apparent that the 3-D laser scanner was both the most effective and safest alternative to traditional methods, as it allowed traffic to flow normally while the survey was performed by the scanner off to the side of the roadway. [8] The same crew would perform another survey utilizing the 3-D laser scanner from start to finish. [8] A 3D laser scanner captures intricate architectural details of building interiors and complex existing conditions, accurate to 1/16". [15] The more detail there is, such as arched ceilings or other intricate architectural details, the more beneficial it is for a laser scanner to capture this information vs. traditional measuring techniques. [15] If you have a laser scanner available with a driver, you can go ahead and use it. [13] Like computers before them, 3D laser scanners, a technology that has become a prevalent tool among AEC professionals, have recently crossed into the territory of handhelds. [11] One software package or one laser scanner, I don?t think we need to be that proscriptive. [12] "In addition, the laser scanner will greatly reduce the amount of time that our maintenance personnel and contractors are exposed to work-zone traffic." [8] "Safety is a top priority here at IDOT, and 3-D laser scanners are helping us increase safety for our workers," Illinois Transportation Secretary Randy Blankenhorn said. [8] Safety laser scanner protects personnel within user-defined area. [9]

If dont want to buy it then better do GOOD planning and lease it for particular work. its how we all do it unless we have so many work that we can afford own laser scanner. [16] The 2D laser scanner used in our system is a Hokuyo UTM-30LX, which is a 2D time-of-flight laser with a 270 deg field of view, 30 m maximum measurement range, and 40 Hz scanning rate. [17] The Microsoft Surface PC receives scan data from the 2D laser scanner which is a vector composed of angle and range measurement. [17] The PC is responsible for receiving scans from the 2D laser scanner and the encoder data from the step motor, then converting the 2D scans into 3D point cloud for LiDAR odometry estimation and mapping, and finally displaying the reconstructed 3D point cloud map in real time. [17] After receiving the 2D scan and angle data from the 2D laser scanner and the motion controller, the high-level reconstruction algorithm needs to estimate the motion of sensor based on the received data and construct the 3D map in real time. [17]

The uses and markets for your laser scanner are much larger with SOLIDSCAN across a wider variety of fields previously unavailable to normally cumbersome 3D point cloud data. [18] "Operations who choose Maptek laser scanners for one particular survey application, quickly find many more uses across their different engineering and planning disciplines,? said Mine Measurement Product Manager for Maptek, James Howarth. [19] We assume the rotation speed of 2D laser scanner during a scan is constant, then we can calculate the exact angle when each point is measured. [17] Let be a point in (the superscript L means in laser coordinate system), and let be the set of consecutive points of returned by the laser scanner in the same scan. [17] As the laser scanner rotates at an angular velocity of 180/s and generate scans at 40 Hz, the resolution in the perpendicular direction to the scan planes is. [17] On the ground mobile robot, we also have a 2D laser scanner, which performs a 2D SLAM algorithm by using wheel odometry and laser data. [17] For the customized 3D LiDAR sensor which is based on a 2D laser scanner, there are different ways to estimate the motion of sensor and reconstruct the environment using the perceived 3D point cloud. [17] Large-scale environment reconstruction by using 3D laser scanners has been widely used. [17] For our customized 3D laser scanner which is a 3D scanner with a 2D laser rangefinder rotating on its optical center, the calibration method proposed in can be used to obtain mechanical misalignments. [17] Nowadays, people prefer to develop continuous estimation methods for a rotating 2D laser scanner. [17] The low-level motion control module is responsible for controlling the 2D laser scanner rotating at a constant speed and reading and sending the encoder data to the PC via USB-RS232 data line. [17] M. Schadler, J. Stkler, and S. Behnke, "Rough terrain 3D mapping and navigation using a continuously rotating 2D laser scanner," KI - Kstliche Intelligenz, vol. 28, no. 2, pp. 93-99, 2014. [17] L. Kaul, R. Zlot, and M. Bosse, "Continuous-time three-dimensional mapping for micro aerial vehicles with a passively actuated rotating laser scanner," Journal of Field Robotics, vol. 33, no. 1, pp. 103-132, 2016. [17] J. L. Mart'nez, J. Morales, A. J. Reina, A. Mandow, A. Peque-Boter, and A. Garc'a-Cerezo, "Construction and calibration of a low-cost 3D laser scanner with 360 field of view for mobile robots," in 2015 IEEE International Conference on Industrial Technology (ICIT), pp. 149-154, Seville, Spain, March 2015. [17] The Leica BLK 360 Laser Scanner is the product of this new technology investment and serves as both a fast and accurate means in producing as-built documentation for clients in architecture, construction, engineering, and hospitality. [20] The challenge for our system is that our 3D reconstruction system is based on a rotating 2D laser scanner; therefore, there are big distortions as our sensor moves, which pose big challenges for correct and accurate registration. [17] The SR3 laser scanner weighs only 9.6 kg and is accurate to 4 mm. [19] Which is why the new Maptek I-Site SR3 600-metre range laser scanner is destined to become the mine measurement standard for underground operations. [19] Im looking into the posibility to add a laser scanner to our workflow, but I would like to know what is the cheapest option that we could acquire, right now we use just photos, and I would like to add a bit more info with a scanner. [16] Since the used Hokuyo UTM-30LX laser scanner is an indoor laser scanner, we did not carry out experiments in outdoor environments. [17] A key feature of the system is a novel passively driven mechanism to rotate a lightweight 2D laser scanner using the rotor downdraft from a quadcopter. [17] This paper has described a 3D laser scanner with 360 field of view. [17] Lichti, DD, Gordon, SJ and Stewart, MP ( 2002 ) Ground-based laser scanners: operation, systems and applications. [21] The 3D mapping system is based on a rotating 2D planar laser scanner driven by a step motor, which is suitable for continuous mapping. [17] The motion controller is responsible for controlling the rotating speed of the 2D laser scanner, which is composed of an ARM STM32 board, a step motor, an encoder, and a communication board. [17] Up to now, several customized 3D laser scanners have been developed for autonomous robots by means of a rotating laser scanner with a 360 horizontal FoV, allowing for detection of obstacles in all directions. [17] In this paper, we present a low-cost customized 3D laser scanner based on a rotating 2D laser scanner which is suitable for both autonomous navigation and large-scale environment reconstruction. [17] Kaul et al. also proposed a passively actuated rotating laser scanner for aerial 3D mapping. [17] Therefore, they also developed a 3D laser scanner by continuously rotating a 2D laser scanner. [17] FARO Technologies Inc. ( 2011 ) FARO laser scanner Focus3D manual. [21] Currently, there are several ways to make 3D scanners from a 2D laser scanner. [17]

The world?s most portable and easy-to-use imaging laser scanner of its kind, the Leica BLK360 produces a full-dome scan at a maximum range of 60m in less than 3 minutes. [22] Leica Geosystems' Pro Series ScanStations are the world's only survey-grade 3D laser scanners engineered to withstand difficult environmental conditions while delivering unmatched range and performance. [22] SICK's S32B-2011BA safety laser scanner, for example, uses a laser diode to produce a near-infrared pulse with a wavelength of 905 nanometers (nm). [23] When the person or object enters the inner safety field, the laser scanner sends a signal to stop the hazardous motion of the robot or machine. [23] Safety mats, light curtains, and safety laser scanners play an important role in detecting intrusions and shutting down machines automatically without the necessity of human interaction. [23] The TCO analysis particularly favors a laser scanner in a high traffic area where a safety mat might have to be periodically replaced. [23] A safety laser scanner can provide three-dimensional protection of an area, and offers the designer increased flexibility to tailor the system response by specifying different warning and safety bands, also known as zones, around the hazard (Figure 5). [23] Until recently, laser scanners have been considerably more expensive than safety mats. [23] Our accuracy laser scanners can capture the shape of your race car, truck, helicopter etc. [24]

Various types of laser scanners, software that creates point clouds from photos, and handheld scanners have the potential to dramatically improve productivity, but users of these devices in the construction and asset management industries are finding that these devices are creating a major data management problem which has to be addressed to enable the technology to achieve its full potential. [25] With the latest single photon laser scanner ( Leica SPL100 ), it is possible to collect 80 points per square meter (m 2 ) flying at an altitude of 2,500 meters (about 8,000 ft) as opposed to 3 points per m 2 with traditional linear laser scanning. [25] Terrestrial and mobile laser scanners can capture point clouda that are suitable for extracting curbs, gutter drains, traffic signals, road and local terrain information, parking meters, walls, obstructions in the right of way, manholes, sidewalks, overhead clearances, lights, utility wires and connections, garbage cans, benches, fences, guardrails and barriers, retaining walls, and line of sight vegetation obstructions. [25] A 3D laser scanner emits a laser beam that collects up to one million measurement points per second. [26] The data generated by laser scanners is highly reliable and allows stakeholders to make necessary changes and additions before the actual project begins. [26] Hexagon AB has launched the Leica RTC360, a laser scanner equipped with edge computing technology to enable fast and accurate creation of 3D models in the field. [27] This is another example of how geospatial technology, in this case laser scanners combined with photography with real-time geoprocessing, is able to provide solutions in a wide range of industries. [25] Unlike other "handheld" devices it is a full laser scanner and imager - it captures 360,000 points/second with a range of 0.6 - 60 meters with millimeter precision. [25] Reality capture was done with a pickup truck with side mounted photo and IR cameras and LiDAR laser scanners. [25] They described a very practical approach applying laser scanners to ensure that the owner is reassured during construction that what is actually being built is what was designed. [25]

POSSIBLY USEFUL

LiDAR is a remote sensing technology which uses the pulse from a laser to collect measurements which can then be used to create 3D models and maps of objects and environments. [28] LiDAR works in a similar way to Radar and Sonar yet uses light waves from a laser, instead of radio or sound waves. [28] LiDAR mapping uses a laser scanning system with an integrated Inertial Measurement Unit (IMU) and GNSS receiver which allows each measurement, or point in the resulting point cloud, to be georeferenced. [28] Because of their ability to collect three dimensional measurements, laser scanning systems are popular for surveying the built environment (such as buildings, road networks and railways) as well as creating digital terrain (DTM) and elevation models (DEMs) of specific landscapes. [28]

Environmental applications also benefit from LiDAR - laser scanning is a popular method of mapping flood risk, carbon stocks in forestry and monitoring coastal erosion. [28]

Many automotive manufacturers are using smaller, lower range LiDAR scanners to help navigate autonomous vehicles. [28]

In general, however, laser is relied upon as the scanner of choice for long-range scanning tasks. [29] Scanner hardware generates the laser pulse or light projection, interprets the reflection, and records the results. [6] In general, a laser handheld scanner can only scan 1D codes, making them unsuitable if you need to do any 2D barcode scanning. [29]

A scan is a powerful laser recording of field data that captures a site's shapes and possibly its appearance and converts those conditions into a cloud of data points, which can be uploaded into a 3D model. [5] Our 3D laser scanning technology for design and construction captures existing building conditions, documents the progression of construction, and transforms scan data to 3D models for visualization. [2]

Laser Design uses top of the line 3D software systems and software for your project! We have experience with the latest technology and always pick the right software and 3D system for your job to ensure the best results. [30] Omnidirectional scanning uses "series of straight or curved scanning lines of varying directions in the form of a starburst, a, or other multiangle arrangement are projected at the symbol and one or more of them will be able to cross all of the symbol's bars and spaces, no matter what the orientation. 1 Almost all of them use a laser. [1] The Laser Design team has provided 3D scanning services for clients in many industries around the globe. [30] Two technologies dominate in barcode scanning: laser and imaging. [29]

Laser Design?s 3D terrestrial & LiDAR specialists have experience with new construction, renovation, historic preservation, and building inspection projects around the world. [30] The Laser Design Terrestrial 3D Team has been busy! We've been to the World Trade Center, the new U.S. Bank Stadium, Space Needle, Miami Airport, ships in Korea, the Mirage volcano and more! We have the experience and know-how to tackle your next project! Check out our gallery of photos. [30]

The combination of direction and distance is used to calculate its X, Y, and Z coordinates for the point on the surface struck by the laser pulse. [6] In inventory management or warehouse management use cases, a laser handheld scanner is ideal for hard-to-reach, out-of-the-way items stacked on high racks and shelving. [29] Image scanners can often compensate for hard-to-read or damaged bar codes, producing a useable read even in conditions where lasers can?t. [29]

There are a range of different omnidirectional units available which can be used for differing scanning applications, ranging from retail type applications with the barcodes read only a few centimetres away from the scanner to industrial conveyor scanning where the unit can be a couple of metres away or more from the code. [1] Aside from our proprietary hardware and software, the process is not very different if you are using an arm based scanner, area based scanner, or other scanning technology. [3] Output from the scanner becomes input into software applications to obtain value from the point cloud. [6] To capture the various sides of an object, there are two approaches: 1) For smaller items, move the object by placing it on a rotary table, or 2) Move the scanner either via a coordinate measuring machine (CMM) arm (for smaller items), or changing the scanner station?s location and combining several point clouds. [6]

Prefabrication and coordination of mechanical, electrical, and plumbing (MEP) systems installation has saved rework money on every project Gilbane has used its scanner on. [5] Early barcode scanners, of all formats, almost universally used the then-common RS-232 serial interface. [1] Fixed-position scanner an industrial barcode reader, used to identify products during manufacture or logistics. [1] Nokia's Symbian operating system features a barcode scanner which can scan barcodes, while mbarcode is a barcode reader for the Maemo operating system. [1] PDA scanner (or Auto-ID PDA) a PDA with a built-in barcode reader or attached barcode scanner. [1]

Counting software and operations training, the bill came in around $60,000, a far cry from the six-figure cost of older scanners but still a major investment. (The newer FARO Focus-S 350 costs about $35,000.) [5] Receipts scanned on a scanner could be automatically identified and associated with the appropriate entries in finance and property inventory software. [1]

The most commonly used dimension is 13 thou (0.013 in or 0.33 mm ), although some scanners can read codes with dimensions as small as 3thou (0.003 in or 0.075 mm ). [1] The scanner resolution is measured by the size of the dot of light emitted by the reader. [1] Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones. [1]

Another application joins holographic scanners with a checkweigher to read bar codes of any orientation or placement, and weighs the package. [1] Two-dimensional imaging scanners are a newer type of bar code reader. [1]

Stationary scanner wall- or table-mounted scanners that the barcode is passed under or beside. [1] "Keyboard wedge" hardware plugged between the PS/2 port and the keyboard, with characters from the barcode scanner appearing exactly as if they had been typed at the keyboard. [1]

If you are scanning frequently used bar codes from a list of grouped codes, it can be difficult for some image scanners to segregate and focus on just one code, although for close-range scanning either technology will perform satisfactorily. [29] An image scanner might struggle with long-distance scanning; although there are options designated for "extended range? scanning that can be quite competitive. [29]

Our 3D scanning engineers work with you to get you the 3D data you need for your project. [30] Gilbane's initial uses--five projects across the U.S. spanning higher-education renovations to work for the National Institutes of Health in Washington, DC--have generated such a value add that the company purchased a Faro Focus3D X 330 for its laser-scanning tool kit for long-range outdoor scans. [5]

Our clients have consistently found exceptional value in time and risk management from the models created from laser scanning, from structural remodeling to MEP trade work. [31] Laser scanning surveys can be of considerable use in jury trials, for example, in case the location supports the use of a high-definition survey, or an object has to be altered after the accident and it has a specific influence on the case and needs to be recorded. [4] "We've found that laser scanning has a huge barrier to entry in cost, but if you own it, you find use cases for it you otherwise wouldn't have considered," says John Tocci Jr., former director of virtual design and construction at Gilbane. [5] Redshift previously discussed prefabrication and how small firms can play a key role in coordinating design and construction activities, and laser scanning is a tool that can enable a high level of coordination in construction. [5]

IKERD has the expertise to perform laser scanning and the engineering expertise to provide accurate 3D measurements of objects, bringing value to the design/construction team. [31] A case study involving a fatal incident was surveyed using three-dimensional laser scanning, and subsequently recreated through virtual and physical models. [4] Historically, laser scanning was superior to image scanning, but the latest imaging technology has narrowed the gap considerably. 2D imagers have superior capabilities for omni-directional scanning, making these devices better for odd-angle scanning (think retail, warehouse operations and picking/packing operations). [29] Laser Scanning (LIDAR) is the ability to take an electronic 3D image of anything within your line of sight to a high degree of accuracy. [31]

For long-range scanning, laser scanning is a likely choice for scanning selected barcodes. [29] Laser scanning existing structural features and created a 3D model in Revit. [30]

Your network and hardware need to be up to the task to share and upload point-cloud data from a laser scan. [5] For changes to existing facilities, the "asbuilt" data from a laser scan ensures representation of the real-world environment. [6]

Our project scopes range from a single mechanical room to some of the largest laser scan projects in North America with one totaling over seven million square feet. [31]

Laser scanned the interior and exterior of four buildings for future design purposes. [30] Laser scanned the interior and exterior of two 9 story office buildings and mechanical areas. [30]

Laser scanned multiple assembly lines for design purposes and for the future placement of new assembly lines. [30]

You will have a greater ability to create designs that fit seamlessly within their environments and to avoid conflicts that are often found once work has begun. [31] Operating in a virtual design environment changes the way you work. [2]

Prefabrication of ductwork and systems has eliminated field work and stopped what might have been weeks of MEP rough-in activities. [5]

Nearly all barcode readers contain decoder circuitry analyzing the bar code's image data provided by the sensor and sending the barcode's content to the scanner's output port. [1] Structured light 3D scanners, also known as white light scanners, function by projecting a pattern of light onto a 3D object. [6] Handheld scanner with a handle and typically a trigger button for switching on the light source. [1] Selecting the right handheld scanner can be complex, so it often pays to speak with an expert who can provide insight and guidance before you invest in a new solution. [29]

Because the technology has become so advanced in terms of tolerance to motion, wearable image scanners (ring scanners and wearable computers) have been a successful way to improve worker productivity without compromising accuracy. [29]

Using a laser and a precisely controlled spinning mirror, the scanner bounces a laser off surrounding surfaces, creating a digital replica of the space with hundreds of thousands of points floating in spacemaking a point cloud model. [15] Laser scanning calculates the time it takes for the laser?s pulse to reflect off a given object and return to the scanner. [32]

Processing of the scanner data took 53 hours to produce finished CAD work, resulting in a total time of 104.5 hours. [8] USNI News visited Newport News Shipbuilding last October, and during a lunchtime meeting a company engineer scanned the whole conference room and produced a point cloud model of the room within about 30 minutes, as an example of how quickly the scanners can work. [12]

With additional software, the data from the scanner can be integrated into BIM (Building Information Models) and used for trade coordination. [15] This course teaches you about the operation of the scanner and explains how to use the FARO scan-editing software, FARO SCENE, to turn the data set into an 3D object you can manipulate in a CAD program. [14] In this course, we're going to go through getting to know the scanner, indoor and outdoor scanning processes, the FARO SCENE software, and pulling this all together back in the office. [14]

Markowicz said the tripod-mounted scanners cost about $3,600 each, and smaller handheld ones for scanning small spaces cost about $600. [12] Industrial CT scanning : CT is well suited for very small parts that are highly detailed or part that require the scanner to look inside them (plastic injection molded parts, assemblies, hollow parts, etc). [33]

As the tool slowly spins around it gathers millions of data points depicting how far away objects are from the scanner. [12] Because a point cloud is gathered from the scanner, this data can be extrapolated and plotted in the safe environment of an office setting and not hand-measured in the field. [8] Processing of the scanner data required 121 hours to produce finished CAD files, resulting in a total time to collect data and produce a finished CAD document of 315 hours. [8]

"By using this technology, we are reducing the need to have our employees near moving traffic, plus these scanners provide detailed survey information that is helpful for our planning and outreach purposes." [8] "The scanner gave us the ability to identify the low spots under live traffic conditions," said Peter Burbulys, PLS, acting chief of surveys for IDOT District 3 who performed the I-57 bridge scan. [8] IDOT survey crew member surveying intersection with 3-D scanner out of the path of live traffic. [8] A one-person crew was able to set up the scanner and survey the bridge decks from a safe distance away from the traffic lanes. [8] A one-person crew can erect a scanner off the side of the roadway and can, depending on traffic volume, either completely eliminate the need for traffic control or greatly reduce the lane closure. [8]

We offer additional hardware and software that allow team members to virtually walk the site with virtual reality goggles from a remote location, navigating through a model generated by the scanner, and taking measurements in areas of interest. [15] In the case of the George Washington RCOH, a team of two or three engineers from Newport News Shipbuilding flew out to the forward-deployed carrier in Japan with a LIDAR scanner atop a tripod. [12]

He likened the point cloud image to a PDF that could be opened on a Mac or a PC and is readily sharable among users, and said it would be important that, regardless of what scanner is used, the output has these qualities too. [12] Part to large or too heavy to being it to a traditional CMM or Scanner? No problem, our FARO system will come to your part! It does not matter if the part is in the shop or on the job site, we can scan it. [33] It would take several hours per room to capture the same level of detail as it would in 10 minutes with a scanner. [15] This time allows for the calculation of the distance from the scanner. [32] IDOT procured three scanners, each one distributed to different offices--District 3 in northeastern Illinois, District 8 in southwestern Illinois, and the Central Bureau of Operations, Aerial Surveys Unit, in Springfield. [8] Most importantly, you have the angle of each hit and its distance (range) from the scanner. [13]

This means two things: 1) your point cloud will be in the same frame as the scan, and 2) your point cloud will look very strange if the laser or robot were moving while the scan was being taken. [13] Despite using the tf::MessageFilter, it is recommended practice to wrap your usage of tf in a try-catch loop. Although the transform between the laser frame and the desired point cloud frame existed at the beginning of the callback, there is no guarantee that it still exists when you call transformLaserScanToPointCloud. [13] This is much more accurate (although not absolutely perfect) than using projectLaser and tf::transformPointCloud() if the laser was moving in the world. [13]

Overall, the 3-D laser technology has demonstrated its effectiveness by reducing the exposure of IDOT personnel to traffic hazards, improving worker safety in the field, and minimizing disruption to the traveling public. [8] You can download a bag file containing laser data here (save link as. [13] Utilizing the 3-D laser scanning equipment on this project provided a multitude of benefits: a high level of data accuracy, a brief time period of personnel exposure to traffic hazards, minimization of traffic flow disruption and timely execution of the project to move forward coupled with a solution for safety improvement to the traveling public. [8] The use of laser scanning equipment on this project shortened the overall project time by only 1.5 hours, with the post-processing time required for the laser scanning method being twice as much as that required for the conventional survey method. [8] While the Faro ScanArm is a great fit for most laser scanning projects, DE has access to other scanning technologies for the times when jobs necessitate something other then a red line 3d laser scanning. [33]

His team is hosting a laser scanning summit later this month to identify barriers and develop courses of action to begin to address them - everything from how many dots per inch are needed for the scan to be useful, to, are there any engineering decisions that cannot or should not be made based on laser scanning and 3D point cloud modeling work. [12] The traffic exposure of the work crew was decreased by 29 hours, or approximately 36%, by using the laser scanning equipment. [8] Below, we will discuss how laser scanning works and why it can be so crucial for your projects. [32]

This point cloud works as a fantastic guide for our design team as they work out how to efficiently fulfill the needs of your project. [32] A team of in-house engineers work with our clients to create custom deliverables that aid in the design, planning and execution phases of any construction project. [10] When you contract a design-build project with any construction firm, whether they are a joint engineering and construction firm like BSI Engineering or just a construction contractor, you need to have a firm grasp of the work you want done. [32]

The actual scanning service can cost between $50 and $250 an hour, and post-production work can cost $100 to $300 and hour. [12] Conventional ground survey methods for the field phase required 309.5 hours of field work to collect the necessary measurements. [8]

If you want to work with raw range data, then the above message is all you need. [13]

Laser scanning is a fast, accurate and non-intrusive way to collect as-built construction data, and eliminates the need to return to the site for additional measurements. [10] DE steps into this situation to handle all of their reverse engineering needs. After laser scanning the part they send us the raw scan data files and have us handle the reverse engineering they need completed. [33]

TruePoint provides 3D laser scanning services to every aspect and phase of construction. 3D laser scanning is proving itself invaluable to the success of today?s fast-paced and technically challenging projects. 3D laser scanning can provide the information on existing building conditions with the accuracy needed for construction planning. [10] TruePoint completes over 800 laser scanning projects every year and has earned a reputation for delivering excellent service on time and on budget. [10] The laser scanning, process always gives you an accurate understanding of the space where your project will take place. [32] DE has several customers who own their own 3D laser scanning or imaging systems who don't want to deal with training and maintaining a reverse engineer on staff for occasional projects. [33]

Mark Bilinski, a scientist at the Space and Naval Warfare Systems Center Pacific and its Battlespace Exploitation of Mixed Reality (BEMR) Lab, and his team are working on laser scanning technology and ways to leverage the 3D point cloud product. [12] Rick Porter, chief of surveys in IDOT District 8, was an early adopter of the 3-D Laser Scanning technology. [8] John Markowicz, the in-service carrier program manager, told USNI News in an interview that the $1.8-million savings from that one ship check effort was about 15 percent of the total cost of that portion of the RCOH planning, and that his office was already employing the laser scanning technology ahead of the next RCOH for USS John C. Stennis (CVN-74). [12]

The larger benefit was that while conventional methods placed personnel in or near traffic for a total of 80 hours, the laser scanning method placed personnel in or near traffic for only 51 hours. [8] Released 2/12/2018 Laser scanning is a high-precision method of reality capture. [14]

For general contractors, laser scanning lowers risk by ensuring as-built drawings are complete and accurate and by exposing any inaccuracies early in the process, before they turn into change orders during construction. [10] In July 2016, while utilizing the laser scanning equipment, the bridge structures were surveyed while regular traffic flow was maintained across the bridges. [8] Welcome to my course, Laser Scanning with FARO. Laser scanning has come an amazingly long way in the past few years. [14]

The handheld scanner was used in tandem with the FARO X330 scanner to provide a more complete point cloud dataset while eliminating the usual voids left behind by static scanning. [11] In one particular project SSOE worked on, a handheld scanner was used to scan a piece of equipment quickly and incorporate the design of new piping tie-ins to the equipment. [11] A handheld scanner was used to scan an existing fuel gas preheater to create this image, which shows how it would connect to a planned new fuel gas preheater. [11]

On one SSOE project, an engineer went to the field and spent three hours using a handheld scanner to capture the rip and replace of a piping skid. [11] "As a result of using a handheld 3D scanner, our team was able to drastically change the approach of the design on the next phase of the project, which resulted in a 7% efficiency gain in our productivity," says Jason Christen, PMP, Senior Project Manager with SSOE Group. [11]

Architects and engineers with SSOE Group believe one of the biggest benefits handheld scanners provide is the ability to show clients results immediately after taking a scan. [11] The handheld scanner allowed the architects to capture compressors, elevator machines, and pipe assemblies in significant detail, and gain accurate measurements that would have otherwise taken much longer. [11] "This small handheld scanner was the springboard that resulted in $1 million in cost savings for our client." [11]

We can anticipate any extra work, extra materials, and extra costs at the beginning of the project. [32] It might be more convenient to work with points in 3D Cartesian (x,y,z) format instead. [13] It can also be used to compare the newly constructed work against the as-designed model or drawings for quality assurance. [10] The 3 work flows used in DesignX: STL Mesh, Featured Based, & Auto surface. [33]

They scanned destroyer USS John S. McCain (DDG-56) after its collision last year, and while the ship undergoes a lengthy repair process, sailors could use VR goggles to practice maintenance and repair work on McCain ?s specific configuration without having to actually be on the destroyer. [12] A small team of engineers with a LIDAR system did the work of the usual 20-person team, inspecting the nooks and crannies of the carrier to inform the overhaul plans. [12]

The laser_geometry package provides two functions to convert a scan into a point cloud: projectLaser and transformLaserScanToPointCloud. projectLaser does a straight projection from range-angle to 3D (x,y,z), without using tf. [13] The function you'll want to use the majority of the time is the handy transformLaserScanToPointCloud function, which uses tf to transform your laser scan into a point cloud in another (preferably fixed) frame. transformLaserScanToPointCloud uses tf to get a transform for the first and last hits in the laser scan and then interpolates to get all the transforms inbetween. [13] To convert the laser scan to a point cloud (in a different frame), we'll use the laser_geometry::LaserProjector class (from the laser_geometry package). [13] To get your laser scan as a set of 3D Cartesian (x,y,z) points, you'll need to convert it to a point cloud message. [13] After the laser scans the room and imports the drawings into the cloud, MEPs and trade contractors participating in the MEP coordination process have immediate access to these files and can interweave and incorporate their trade drawings into Point Cloud coordinates. [15] Understand how to convert the laser scan into a more intuitive and useful point cloud (point_cloud message). [13] Luckily, there are simple ways to convert a laser scan to a point cloud. [13] Try creating the node above, publishing the point cloud and visualizing the point cloud in rviz. In rviz, this new cloud will look exactly the same as the original laser scan. [13]

The primary task of the project was to create a BIM model from 3D laser scans of the building?s interior spaces, including the mechanical rooms. [11] Understand the data that the laser scan ( laser_scan message) includes. [13] By using a tf::MessageFilter, you are assured that the laser scan can be converted into the desired frame when the callback starts. [13] Why? Despite the fact that your node has received the laser scan message, tf might not have received all of the information it needs to transform it. [13]

Our low-cost 3D laser rangefinder consisted of a 2D LiDAR scanner continuously rotating around its optical center which is suitable for 3D perception in robotics and reconstruction in other applications. [17] Essentially what that allows you to do is use the large-scale capabilities and accuracy and portability of your Leica laser tracker with the LAS-XL scanner. [34] Jim Anderton, scanned using the LAS-XL Scanner and Leica Laser Tracker AT960. [34] It identifies the scanner in space, as it shoots out a flying dot laser. [34] J. Morales, J. Mart'nez, A. Mandow, A. Reina, A. Peque-Boter, and A. Garc'a-Cerezo, "Boresight calibration of construction misalignments for 3D scanners built with a 2D laser rangefinder rotating on its optical center," Sensors, vol. 14, no. 11, pp. 20025-20040, 2014. [17]

The approach, known as light detection and ranging scanning (lidar) involves directing a rapid succession of laser pulses at the ground from an aircraft. [35] In geographic areas, there are several commercial products already available in the market for 3D laser mapping, for example, scanning LiDAR from Faro ( http://www.faro.com/ ) and Leica ( https://lasers.leica-geosystems.com/ ) company. [17] In Shan, J and Toth, CK eds. Topographic laser ranging and scanning principles and processing. [21] Petrie, G and Toth, CK ( 2008 ) Introduction to laser ranging, profiling and scanning. [21]

The data generated from the spinning laser is input into a continuous-time simultaneous localization and mapping solution to produce an accurate 6DoF trajectory estimate and a 3D point cloud map. [17] The movement of the sensor will cause the distortion of point cloud; therefore, we need to continuously estimate the trajectory (laser odometry) of the sensor and remove the distortion of the point cloud. [17] The resulting point clouds provide detailed 3-D visualisation of the channel with point accuracy of 6.54 mm, despite low (<60%) overall laser returns as a result of the physical and optical properties of the clean ice, snow, hoar frost and sediment surfaces forming the conduit interior. [21]

Because this rig enables us convert position on the camera to mirror angle, if we strobe the laser light, we can use the position of the laser on the camera to determine the mirror angle at the time of the strobe. [36] This allows us to measure the mirror's approximate angle vs. time in response to an input voltage vs. time by taking a series of images and observing the resulting laser positions on the camera. [36]

These are very challenging for laser-based reconstruction system, since there are only few geometry features and laser sensor does not work well with glass. [17] Collecting consistent 3D laser data when the sensor is moving is often difficult. [17] For our laser three-dimensional reconstruction system, we only use the pose optimization, as shown in Figure 8. [17] The bottom figure of Figure 14 shows an oblique view of the 3D point cloud generated from an experiment and overlaid with the points from the horizontal laser. [17] As before, a 200 mW, 488-nm laser was used for illumination and fast shuttering and dynamic intensity control used achieved with an AOTF. After the AOTF, the beam was contracted by two consecutive telescopes. [36] J. Morales, J. L. Mart'nez, A. Mandow, A. Peque-Boter, and A. Garc'a-Cerezo, "Design and development of a fast and precise low-cost 3D laser rangefinder," in 2011 IEEE International Conference on Mechatronics, pp. 621-626, Istanbul, Turkey, April 2011. [17] You're able to scale the laser down to a smaller laser with, allowing you to gather more accurate features or edges. [34]

The fixed-frequency sinusoidal motion of resonant scanners impedes imaging at variable rates or random-access scanning (where only discrete portions of the field of view are scanned ). [36] By mounting the other end of the passive linkage mechanism to a moving body, disturbances resulting from accelerations and vibrations of the body propel the 2D scanner in an irregular fashion, thereby extending the device?s field of view outside of its standard scanning plane. [17]

The R3 series is 30% smaller and 25% lighter, with 2.5 times faster data acquisition than the earlier I-Site 8000 scanners. [19] The scanner fires a 600-millimeter-wide beam at a 1-meter offset that allows you to capture large-scale fixtures for either large part verification, assembly work, or for reverse engineering capabilities. [34] Whatever the orientation of the scanner, integrated levelling automatically corrects scans before processing. [19] Improvements in microelectromechanical systems (MEMS) scanner technologies have permitted their increasing use in high speed beam steering. [36] The HP david structured light scanners are open hardware. but I'm not sure what they are charging for the modelling software. [16] Compared to pitching scanner, the advantage of a rolling scanner is that its field of view can be widened to 360. [17] We examine the performance of a MEMS scanner with traditional control methods. [36] MEMS scanners have proven useful for applications in optical coherence tomography, confocal reflectance microscopy, two-photon microscopy, microendoscopy, and light-sheet microscopy. [36] Bosse et al. also proposed a sensor called Zebedee, which is constructed from a 2D range scanner coupled with a passive linkage mechanism, such as a spring. [17] The step motor is equipped with an encoder to record the rotating angle of the 2D scanner. [17] The precursor wobble stick version ( https://confluence.csiro.au/display/ASL/Zebedee ) was cool to watch but can't help think it would have been a bit embarrassing to carry around (forgoes the rotating scanner system for random sweeping of the volume.) [16]

Hle, B, Geist, T, Rutzinger, M and Pfiefer, N ( 2007 ) Glacier surface segmentation using airborne laser scanning point cloud and intensity data. [21] Buckley, SJ, Howell, JA, Enge, HD and Kurz, TH ( 2008 ) Terrestrial laser scanning in geology: data acquisition, processing and accuracy considerations. [21] Direct acquisition of elevation data: terrestrial laser scanning. [21]

The level of detail and accuracy created through laser scanning will help reduce time needed on-site to perform critical project tasks and functions. [20] "Old total survey practice technology is not able to compete with laser scanning for speed, accuracy, efficiency or safety. [19] The SR3 is the culmination of 18 years of practical involvement in terrestrial laser scanning systems to improve mine survey. [19]

Soudarissanane, S, Lindenbergh, R, Menenti, M and Teunissen, P ( 2011 ) Scanning geometry: influencing factor on the quality of terrestrial laser scanning points. [21] To a lesser extent, rotating polygonal mirrors and acousto-optic deflectors (AODs) are also used in laser scanning applications, and they present their own advantages and drawbacks. [36] Idrees, MO and Pradhan, B ( 2016 ) A decade of modern cave surveying with terrestrial laser scanning: a review of sensors, method and application development. [21] Fischer, M, Huss, M, Kummert, M and Hoelzle, M ( 2016 ) Application and validation of long-range terrestrial laser scanning to monitor the mass balance of very small glaciers in the Swiss Alps. [21] Pfiefer, N and Briese, C ( 2007 ) Laser scanning - principles and applications. [21]

Citation: Giannini JP, York AG, Shroff H (2017) Anticipating, measuring, and minimizing MEMS mirror scan error to improve laser scanning microscopy's speed and accuracy. [36] Kaasalainen, S, Kaartinen, H and Kukko, A ( 2008 ) Snow cover change detection with laser scanning range and brightness measurements. [21] Prokop, A ( 2008 ) Assessing the applicability of terrestrial laser scanning for spatial snow depth measurements. [21] Soudarissanane, S, Lindenbergh, R and Gorte, B ( 2008 ) Reducing the error in terrestrial laser scanning by optimizing the measurement set-up. [21]

Many modern laser scanning microscopy techniques use galvanometer-controlled mirrors to move the illumination beam relative to the sample. [36] Through novel use of a terrestrial laser scanning (TLS) system, the interior geometry of an englacial channel in Austre Brgerbreen, Svalbard, was reconstructed and mapped. [21]

SOLIDSCAN solves many issues associated with the laser scanning process removing holes, reflection noise, moving objects and creates a valuable offering to replace panoramic or bubble images with photo-realistic and efficient 3D. [18] Gel W, Kampa BM, Helmchen F. Imaging cellular network dynamics in three dimensions using fast 3D laser scanning. [36] Lv X, Zhan C. Construction of multiphoton laser scanning microscope based on dual-axis acousto-optic deflector. [36] Peji?, M ( 2013 ) Design and optimisation of laser scanning for tunnels geometry inspection. [21]

Incredibly our algorithm also removes moving objects and noise from laser scanned data so that only static objects remain. [18] High resolution laser scans collect detailed data for geological and geotechnical face mapping. [19] Twenty-eight laser scan surveys were conducted in March 2016, capturing the glacier surface around a moulin entrance and the uppermost 122 m reach of the adjoining conduit. [21]

Survey teams can work faster and smarter, with confidence that accurate, current topographic and volumetric data is guiding mine planning and geotechnical investigations. [19] Elizabeth Graham, professor of mesoamerican archaeology at University College London who was not involved in the projects, said the team?s work was impressive, and that lidar was backing up long-held suspicions about the size of archaeological settlements. [35] In their work, they only describe the design and development of the hardware of the sensor and do not propose efficient algorithms for processing the received 3D point cloud. [17] They can work and take measurements from the results produced from all the standard formats that they?re used to (AutoCAD, Revit, SketchUp, etc.). [20] Copyright 2018 Zheng Fang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. [17] In our work, in order to improve the robustness, we use scan-to-local map strategy instead of scan-to-sweep strategy. [17]

Produce aesthetically pleasing copies of buildings for the general public and developers to work with. [18] The Asus Xtion has an effective range from 0.5 to 4 meters with precision of around 12 cm at 4 m range and does not work in bright sunlight. [17]

AODs use radio frequency sound waves to create a tunable diffraction grating that is used to control laser beam output angle. [36]

A scan is a powerful laser recording of field data that captures a site?s shapes and its appearance, converting those conditions into a cloud of data points that can be uploaded into a 3D model. [37] Lower cost laser safety scanners are becoming available, and the return on investment (ROI) for safety scanners compares well to older technologies from a total-cost-of-ownership (TCO) perspective. [23] The Loadscan Load Volume Scanner (LVS) system utilizes laser scanning technology combined with proprietary Loadscan software to measure the exact volume of the material loaded in a truck or trailer bin. [38]

There are a range of checks and balances written into the LVS software so that the scanner does not report inaccurate readings in the unlikely event that it cannot obtain a reading from the collected scan data. [38] With our integrated scan heads, off-the-shelf scanners, custom motor polygon assemblies and precision machined mirrors, we provide polygonal scanning products to exacting specifications and performance standards. [39] The scanners we use made by Leica, Faro, Brueckmann and Surphaser are among the best in the industry and provide the high quality and accurate data that you are looking for. [24] Our Leica ScanStation PS30 is a high versatility scanner suitable for a wide range of typical scanning solutions. [22]

Our Motor Polygon Assemblies (MPA?s) serve a diverse range of applications from scanning laser ophthalmoscopy and optical inspection, to semiconductor wafer inspection and LiDAR. The dedicated Lincoln polygon staff located in our Phoenix facility are ready to assist you in developing optimized solutions to fulfill your complex ultra-fast scanning requirements. [39] From initial design through prototype, to full-scale production, our team of engineers, application specialists, and manufacturing experts work closely with our customers to provide optimized solutions tailored to a broad array of laser processing applications. [39] The modern industrial work cell uses a multilayer approach to safety: designers must combine active measures such as safety mats, light curtains, and lasers with visual and audible warning indicators (Figure 2). [23]

In the last couple of decades, laser technology has also begun to help improve safety on the factory floor. [23]

Simply scan a scene and walk away with dimensions for everything the laser hits. [22] The hardware measures the return time of the laser and can discern how far away a physical element is. [37] The range finder lasers in your LVS are the only lasers on the market that have passed stringent metrological and accuracy testing required for trade approval. [38] Cameras continuously record the changing distance and shape of the laser line while it sweeps along the object or landscape. [40]

At the highest level, scanners are used to send out a high density of laser beams for the purpose of positional measurement. [37] Prefabrication and the coordination of mechanical, electrical, and plumbing (MEP) systems installation can save rework money on projects on which we use the scanner. [37] The time between transmission and reception is proportional to the distance between the scanner and the object. [23] Once an object or person is detected in the outer warning zone, the scanner sends a warning signal to an audible or visible indicator that notifies them of a potential hazard. [23]

We maintain a pool of TLS scanners, as well as supporting field equipment (e.g., GPS systems, tripods), software, and staff trained in best practices for operation of these systems. [41] The OS32C Area Scanner from Omron Automation and Safety features a monitoring field of up to 270? and includes two separate warning zones, plus a safety zone (Figure 6). [23] The zones are programmable and can be changed dynamically by an input to the safety scanner. [23]

Scanners can also identify the RGB color value for a more intuitive display of point cloud information. [37] We have different types of scanners that can capture a wide range of sizes. [24] There?s no need for re-calibration or scheduled servicing as your Loadscan scanner will operate consistently even in extreme and remote environments. [38]

Our long range 3D scanners can capture buildings of nearly any size and provide valuable point cloud data. [24] The difference in data quality and accuracy between a low-end and a high-end 3D scanner can affect the success of your project. that is why we maintain a fleet of professional 3D scanners that are up to the demands of the industry. [24]

Quicker than 3D laser scanning, more complete than handheld 3D scanners. [42] Laser scanning allows us to efficiently capture the shape of physical objects using a line of laser light. [40] Our 3D laser scanning technology can capture the shape of any physical object with high accuracy down to.0005 depending on size and application. [24] Spatial Acuity employs experienced AEC, project management professionals and we have mastered the technology and technique of laser scanning. [40]

Laser beams project outward from the scanning hardware and are measured in time of flight or phase shifts as they return to the source. [37] Our experience in laser scanning means that we are fast and can handle a range of challenges and project types. [40] Communication between our project managers and clients is consistent during a laser scanning project. [40]

Laser scanning helps lower contractor risks by ensuring that as-built drawings are accurate and by exposing any inaccuracies early in the process, before they turn into change orders during construction. [37] Three-dimensional laser scanning is how we quickly and efficiently document your entire building structure and surrounding landscape. [40]

An integrated rotating mirror deflects the pulsed laser beam and enables the unit to perform a fan shaped scan of the surrounding area. [23] The transmitter emits a pulsed laser beam that is reflected by an intruding object and detected by the receiver. [23]

We work on a disciplined, structured project basis, allowing you to select exactly what services you need. [40] Whether you?re an architect, engineer, contractor or owner, you work on important projects that require accuracy and consistency. [43]

Our 3D-point cloud files easily convert to 2D and 3D models for VCD/CAD files, so you can display your images in the format that works best for you. [40] Epic Scan consistently delivers a quality product that is exactly what we ask for and is easy to work with. [43] Students at the Indiana University geologic field camp work with a UNAVCO TLS system. [41] They can be added without redesigning the work flow or training personnel in new safety procedures, both of which can take months to implement. [23]

The accuracy of our 3D scanners themselves start at.001 and go up from there, depending on the technology and the size of the object or area scanned. [24] Our professional 3D scanners can capture nearly anything with high accuracy. [24]

RANKED SELECTED SOURCES(43 source documents arranged by frequency of occurrence in the above report)

1. (45) A Real-Time 3D Perception and Reconstruction System Based on a 2D Laser Scanner

2. (28) Web Exclusive: Quick scan | Roads & Bridges

3. (21) laser_pipeline/Tutorials/IntroductionToWorkingWithLaserScannerData - ROS Wiki

4. (20) Barcode reader - Wikipedia

5. (18) Assessing the applicability of terrestrial laser scanning for mapping englacial conduits | Journal of Glaciology | Cambridge Core

6. (16) Industrial Automation Safety | DigiKey

7. (14) Navy Use of Laser Scanning Already Showing Big Savings; Summit This Month to Refine Plans - USNI News

8. (13) Anticipating, measuring, and minimizing MEMS mirror scan error to improve laser scanning microscopy's speed and accuracy

9. (12) Laser scanners go handheld | Building Design + Construction

10. (11) Barcode Reading Technology: Laser vs. Imager - Avalon Integration

11. (9) New SR3 underground laser scanner from Maptek | MINING.com

12. (9) 3D Scanning for Architecture, Engineering Construction

13. (9) Laser Scanning in Construction: An Implementation Story [Updated]

14. (8) Welty Technology in Construction: 3D Laser Scanner - Welty

15. (8) 3D Scanning Services USA | 3D Laser Scanning Services | 3D Printing Services from Arrival 3D, Inc.

16. (8) Laser Scanning | Spatial Acuity

17. (8) 3D Laser Scanners Defined, Hardware, Software, Point Cloud | ARC Advisory Group

18. (7) 3D Laser Scanning for As-Built Construction | TruePoint

19. (7) Between the Poles: Laser scanning

20. (7) Laser Scanning - 3D Models & Building | BSI Engineering

21. (7) New 3D Laser Scanning Equipment for A/Z Projects | A/Z Corporation

22. (6) What is LiDAR | What does LiDAR stand for | 3D Laser Mapping

23. (6) Reverse Engineering 3D Laser Scanning - We can 3D scan & RE your parts

24. (5) Learning FARO: Laser Scanning

25. (5) LIDAR - Laser Scanning | IKERD

26. (5) Video: XL Laser Scanner for Qualifying Large Parts > ENGINEERING.com

27. (4) What is the cheapest laser scanner to acquire for RC? - RealityCapture Support

28. (4) Solidscan Euclideon

29. (4) Powerful and Accurate 3D Laser Scanners / Leica Geosystems - PSG - Leica Geosystems - Public Safety Group

30. (4) Load Volume Scanner | Volumetric Truck Measurement Solutions

31. (3) Construction Site 3D Scanning For MEP Contractors | Trimble MEP

32. (3) Introducing our new Leica Laser Scanner - 3Dgroundworks

33. (3) Polygonal Scanning | Cambridge Technology

34. (3) Integration of Laser Scanning and Three-dimensional Models in the Legal Process Following an Industrial Accident - ScienceDirect

35. (2) surface & edge 3D Laser Scanning Vancouver, Victoria, and Vancouver Island. 3D Laser Scanning Services.

36. (2) How do modern reverse engineering techniques such as portable CMM and laser scanning work? - Quora

37. (2) Laser scanning reveals 'lost' ancient Mexican city 'had as many buildings as Manhattan' | Science | The Guardian

38. (2) Terrestrial Laser Scanning (TLS) Project Support | Projects | UNAVCO

39. (2) Epic Scan | The Best in 3D Scanning

40. (2) 3D Scanners

41. (2) Safety Laser Scanners | Banner

42. (1) Hexagon releases 3D laser scanner : Geospatial Solutions

43. (1) 3D Scanning for Construction Projects - Matterport

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