3D scanners are used to detect and analyze the shape (geometry) and appearance data (such as color, surface albedo, etc.) of objects or environments in the real world. The collected data is often used to perform 3D reconstruction calculations, creating digital models of actual objects in the virtual world. These models have a wide range of uses, such as industrial design,flaw detection,Reverse Engineering, robot guidance, landform measurement, medical information, biological information, criminal identification, digital cultural relics collection, film production, game creation materials, etc. can be seen in its application. The production of three-dimensional scanner does not rely on a single technology, a variety of different reconstruction techniques have their advantages and disadvantages, the cost and price also have high and low points. There is no one-size-fits-all reconstruction technique, and instruments and methods are often limited by the surface properties of the object. For example, optical technology is not easy to deal with shiny (high albedo), specular or translucent surfaces, while laser technology is not suitable for fragile or perishable surfaces.
