Improved quadric surfaces recognition from scanned mechanical models

作     者：Quan Weize Guo Jianwei Zhang Xiaopeng Yan Dongming 

作者机构：National Laboratory of Pattern RecognitionInstitute of AutomationChinese Academy of SciencesBeijing 100190China University of Chinese Academy of SciencesBeijing 100049China. 

基　　金：Supported by the National Natural Science Foundation of China(61372168 61620106003 and 61331018) 

出 版 物：《Computer Aided Drafting,Design and Manufacturing》 (计算机辅助绘图设计与制造（英文版）)

年 卷 期：2016年第26卷第4期

页      码：9-19页

摘      要：This paper presents a novel algorithm for identifying quadric surfaces from scanned mechanical models. We make several important improvements over the existing variational 3D shape segmentation framework, which utilizes Lloyd＇s iteration. First, instead of using randomized initialization （which likely falls into non-optimal minimum）, the RANSAC-based initialization approach is adopted. Given a good initialization, our method converges quickly than previous approaches. Second, in order to enhance the stability and the robustness, we carefully modify the distortion-minimizing flooding algorithm by using seed regions instead of seed triangles. Third, the geometric constraints are introduced into the optimization framework. The segmentation quality is further improved. We validate the efficiency and the robustness of our proposed method on various datasets, and demonstrate that our method outperforms state-of-art approaches.

主 题 词：shape segmentation quadric surfaces geometric constraints Lloyd's iteration 

学科分类：081203[081203] 08[工学] 0835[0835] 0812[工学-测绘类] 

D　O　I：10.19583/j.1003-4951.2016.04.003

馆 藏 号：203232649...