3D laser scanner

.? If you are scanning a 3-4 meter Buddha, you can actually use a "photographic 3D scanner", which is now a trend in 3D scanning. In terms of speed, the scanning time should be similar, or even faster. Generally speaking, compared with the laser scanner, the "photograph-type three-scanner" will have more complete features of the scanned image, and the texture of the object will be clearer, which means that the details of the image will be better. Of course, there is also the method of using a "photograph scanner + three-dimensional photogrammetry system" for scanning. This scanning method can reduce the cumulative error and further ensure the overall three-dimensional data splicing accuracy. , Of course, this depends on the specific situation. Each manufacturer has a different definition of high precision. This scanning method is currently widely used in automobiles, aerospace, shipbuilding industry, construction, large cultural relics, power generation equipment, engineering machinery and other fields. In the cultural relics industry, Hangzhou Xianlin 3D Technology Co., Ltd. has many examples. Its officially announced 3D scanner has an accuracy of 0.01mm. If we want to give practical examples, the following example is one of the series of 3D digitization projects of Han Dynasty stone statues in Shaanxi Maoling Museum undertaken by Hangzhou Xianlin 3D. This project carried out digitization of sixteen stone statues named "Sixteen Products of the Han Dynasty". Data collection. ?This case is the scanning process of the most difficult stone statue of Crouching Ox, and it is made into a glass handicraft of the same size, which will be displayed together with the original at the 2011 Xi'an World Horticultural Expo. More examples of scanning cultural relics can be found on the official website of Xianlin. The object scanned in this example is a Han Dynasty stone statue named Wo Niu. The stone statue is 260 cm long and 160 cm wide. High-precision three-dimensional data is obtained through scanning. In addition to being able to archive the three-dimensional data of cultural relics, the three-dimensional data can be processed through various processes (such as rapid prototyping machine processing, laser internal engraving processing, and glass product processing). Generate various derivatives. Click on the image to enlarge it, I hope it helps you.