Technology Research, Based On The Section Line Of Scattered Data Generation And Model Reconstruction

As a critical part of reverse engineering, surface reconstruction is of great importance in a variety of situations such as reverse engineering for mechanical field, computer vision and recovery of biological shapes. Model reconstruction technology is researched in this thesis. The main research contents and achievement are as follows:? A method for smooth planar contour fitting based on discrete data is presented in this thesis.? A method for complicated planar contour fitting is presented: 1) First all the data points used in the contour are ordered; 2) After calculating the curvature of each contour point, the points with bigger curvature are taken as feature points; 3) The contour is segmented by feature points; 4) The contour is globally constructed through determining the segments types(line or circle) and the constraints with the neighbor segments? The generation of skin surface is realized with the interface of CAA. An algorithm is researched and implemented of revolve model generation on point cloud. With the algorithm the revolving axis and the generatrix are extracted through point cloud.