关键词: 点云去噪, 高斯投影, 网格优化, Bezier曲面, 人机交互

Abstract:

Based on the discrete 3D data points on the object surface, a human-computer interactive object simulation algorithm is proposed. Firstly, the mean and variance of probability statistics is adopted to get rid of the noise. Then, Gaussian projection is applied to construct initial grid of the data points by using the concept of longitude and latitude coordinates of earth geography. Finally, Bezier surface is used to find the new control points and subdivide initial network. In the whole simulation process,  keyboard control functions of OpenGL is adopted to realize human-machine interactive modeling, which sets the lighting and material on the modeled object. Experimental results show that the proposed simulation modeling method is effective, which can be directly applied to the repair of ancient buildings, 3D printing and other fields.

Key words: removing noise of point cloud, Gaussian projection, grid optimization, Bezier surface, human-computer interaction