重庆大学学报：自然科学版2012，Vol.35Issue(5)：40-46,68,8.
多种子点提取三角网格特征轮廓的方法
A method for feature contour extraction of triangular meshes based on multi-seed points
摘要
Abstract
An algorithm for extracting feature curves of triangular meshes based on multi-seed points is proposed. First, feature contour positions of triangular meshes are detected on the basis of curvature value and normal vector, and these positions are highlighted with difference colours. Then, several seed points on the proper position are assigned and their feature attributes are computed. Next, their node assessment functions are constructed and correct path nodes are chosen. Finally, the curves extracted from the triangular meshes are smoothed. Experimental results show that the method is not only effective to extract closed feature curves and sharp edges, but also useful for opened feature curves and the region that the features change gently. It has higher accuracy than other methods to detect feature at the branch feature regions.关键词
特征提取/三角网格/评估函数/光顺处理Key words
feature extraction/triangular meshes/function evaluation/smoothing分类
信息技术与安全科学引用本文复制引用
蘑范镭,杨刚生,刘飞..多种子点提取三角网格特征轮廓的方法[J].重庆大学学报：自然科学版,2012,35(5):40-46,68,8.基金项目
国家自然科学基金重点资助项目 （）
重庆市自然科学基金资助项目 （）
