However, the cost of these ground-based LiDAR devices makes them a nonviable option for many users. The FARO Focus 350 is documented to be accurate down to the millimeter level, and this scanner, along with other models, has been used in multiple journal publications. This allows for large areas or objects to be completely covered and accurately documented with relative ease and within a shorter timeframe. This early method, which is still used today, only allowed for one laser to be shone at one object at a time, which resulted in an accurate yet time consuming process.Ĭurrent ground-based LiDAR devices use this same technique, but instead manually aiming and shooting an individual laser, a laser is rapidly shot at a rotating mirror, resulting in millions of laser points collected in all directions. That laser would then bounce back to the equipment, allowing the equipment to determine the distance and angular properties of the object or location. Pulse-based LiDAR technology began as a type of traditional survey equipment with which a user would aim a laser at a desired object or location. For the purposes of this paper, pulse-based LiDAR is used and discussed. There are two different types of LiDAR, pulse-based and phase-based. LiDAR (Light Detection and Ranging) is a method that uses a laser to measure distance. Multiple applications will be chosen for the mobile phone LiDAR export to investigate accuracy differences between the applications, and results are compared using the software CloudCompare. This mobile phone LiDAR data will be compared against LiDAR captured from the same exemplar vehicles using the current standard technology, the FARO Focus 3D scanner. This paper will investigate the accuracy of Apple’s mobile phone LiDAR when obtaining geometry from multiple exemplar vehicles. This mobile LiDAR can be captured using many different applications from the App Store which can then be exported into point cloud data. New technologies, such as Apple’s mobile phone LiDAR capture, were released recently for their newer model phones, and these devices offer a way to obtain LiDAR data but with less cumbersome and less expensive equipment. However, ground-based scanners require expensive and large equipment on-site, as well as other materials that may be required depending on the scenario, such as tripods and alignment spheres. Ground-based Light Detection and Ranging (LiDAR) using FARO Focus 3D scanners (and other brands of scanners) are repeatedly shown to accurately capture the geometry of accident scenes, accident vehicles, and exemplar vehicles, as well as corresponding evidence from these sources such as roadway gouge marks, vehicle crush depth, debris fields, and burn areas. It was originally published by SAE International. The material in this paper was researched, compiled, and written by J.S.
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