一: The principle of the camera-based 3D scanner

The camera type is a new-generation scanner for the industrial field. Compared with the traditional laser scanner and three-coordinate measurement system, its measurement speed is increased by dozens of times. As the method of taking pictures is used, the dead angle of scanning is relatively small, so the measurement accuracy is greatly improved. It uses visible light to project specific grating fringes onto the measurement work surface, and uses two high-resolution CCD digital cameras to take pictures of the grating interference fringes. Using optical photo positioning technology and grating measurement principle, a complex work surface can be obtained in a very short time. The complete point cloud. Its unique mobile design and automatic splicing technology of point clouds from different perspectives make scanning without the help of machine tools, and the scanning range can reach 30M, while scanning large workpieces becomes efficient, easy and easy. Its high-quality perfectly scanned point cloud can be used for product development, reverse engineering, rapid prototyping, and quality control in the automotive manufacturing industry.

T二: The advantages and disadvantages of camera-based 3D scanners and laser scanners

Laser scanner:

Advantages: mature technology, no need to paste mark points, convenient and quick operation, and movable.

Disadvantages: It uses dots and lines to scan, the single format is small, and the data accuracy is relatively low.

Photographic 3D scanner:

Advantages: The new product is a mainstream product, with small scanning dead angles, fast scanning speed and high accuracy.

Disadvantages: Need to spray powder to stick points, heavy work, immobile.

三: Features of camera-type 3D scanner:

1. Fast
2. High precision
3. Easy to operate