1.Accurate positioning: It can be used as a known point in the scanning space to help accurately calculate the 3D coordinates of the object's surface, so as to generate a low error 3D model, and the use of marking points can all enhance the accuracy of the scanning results. 2.Simplify calibration: Before 3D scanning, the calibration process of the scanner can be greatly simplified by reasonably arranging the marker points, enabling the machine to quickly recognize and adapt to different scanning environments, reducing manual adjustment time. 3.Reduced Error: It not only improves the scanning accuracy, but also enhances the stability of the scanning process. During scanning, the marking points serve as fixed references, which helps reduce errors caused by machine movement or object deformation. 4.Adaptable to Scenarios: It can be applied to scanning objects of different materials, shapes and sizes. Whether it is an indoor environment or an outdoor scene, the marker points can be easily coped with, enhancing the scope and flexibility of 3D scanning technology.