The Point Position and Normal Detection System and Its Application

Abstract

Mixed reflection objects have the characteristics of specular reflection and diffuse reflection, so it is difficult to reconstruct and the accuracy is low. In order to solve such problems, a point and normal detection system is proposed. In this paper, an industrial camera, a point laser and a holographic film are used to form a point position and normal sensor, and based on this, the incident light and reflected light of the sampling point on the surface of the mixture are calculated and the normal information of the sampling point is obtained. The reconstruction of objects through Zernike polynomials have highly accuracy. Compared with the traditional method of reconstructing mixed reflection objects, the experimental results show that the point position and normal detection system has high reconstruction accuracy and robust. It can reconstruct both specular reflection and mixed reflection objects with easy operation, and diffuse reflection can achieve scanning modeling. The accuracy of the model can reach micron level.