Laser Scanning, 3D Photogrammetry, and Robotic Dogs

Laser Scanning&3d Photogrammetry & Robotic Dog
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The ColorPoint Cloud tool colorizes a LAS file based on RGB data from a raster. The RGB value of the raster pixel with the same position is assigned to each point in the point cloud. The ColorPoint Cloud task may also be used to develop a script to color point clouds. 3D Photogrammetry, on the other hand, is the process of creating 3D representations of objects or situations by collecting several overlapping images and extracting measurements from them (Luhmann & Boehm, 2019). The underlying premise is comparable to how many modern cameras allow you to stitch together overlapping photos into a 2D mosaic to produce a panorama.
You should consider the scan results needed while choosing the right resolution for your laser scanner. The distance between the scanner and the item and the number of scans required to eliminate shadowing effects all have a part in determining resolution. When picking a resolution, keep in mind whether you need a color or grey point cloud, as well as the sort of data processing and software you'll be using.
The resolution of the laser scanner is determined by the scanned item, project requirements (accuracy requirements, laser scanning time available), and the distance between the laser scanner and the target. There's a simple guideline to follow: only use the scanner's maximum resolution when it's absolutely required. Remember that the better the resolution, the greater the distance between the laser scanner and the item.
3D Laser Scanning: Pros and Cons
On the other hand, 3D scanning may be used on any color or texture items, and it is unaffected by lighting or body movement. Laser scanning operates in the dark and may be used to scan caves or any other location where there isn't enough light. Consider scanning engineering artifacts or pipe connections, for example. It will be practically hard to take the required number of photographs of all sections from all angles. In a photogrammetry room, hundreds of cameras would be necessary to accomplish the same result as a single 3D scanner.
Another benefit of 3D scanning over Photogrammetry is that it provides superior resolution and precision. As a result, face and clothing details acquired by a 3D scanner are more exact and lifelike. Despite this, most consumer 3D scanners can only capture dimensions of 1 to 2 mm; therefore, opt for Photogrammetry if your material has tiny features.
Let us now turn our attention to the drawbacks. At times, consumer 3D scanners can produce low-quality results, so it's best to conduct a few scans. To get a perfect output, you'll need to define the mesh density and match the specifications to the program you'll be using. Laser scanning is ideal for medium-sized things but not for those that are too small or too huge. Another disadvantage is that 3D scanners are prohibitively costly. As a result, if you can scan the ...