%0 Journal Article
%T View-Dependent Point Set Rendering Based on Hierarchical Clustering Tree<br>基于层次聚类树的点曲面视点相关绘制
%A XU Ai-guo
%A HUANG Qi
%A SUN Shou-qian
%A <br>徐爱国
%A 黄琦
%A 孙守迁
%J 中国图象图形学报
%D 2007
%I 
%X This paper proposes a novel algorithm for surface-based hierarchical clustering simplification that aims to accelerate view-dependent point set rendering.The remarkable advantage of this algorithm is that it uses a normal cone semi-angle metric to trace surface curvature variation and provides the clustering simplification process with a reliable global error control,rather than commonly used spatial partition scheme.In off-line simplification phase,combined with various predefined clustering constraint conditions the algorithm constructs a continuous multi-resolution hierarchical representation for point set model.In real-time rendering phase,hierarchical visibility culling and optimized tree traversal efficiently improve system integral performance.Moreover,an additional silhouette enhancement mechanism is introduced to ensure a well rendering vision quality in spite of a larger screen projection error and higher model reduction rates.
%K simplification
%K level of detail
%K point based rendering
%K multi-resolution<br>模型简化
%K 多层次细节
%K 点基绘制
%K 多分辨率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=38D3D40143FEF8AD&yid=A732AF04DDA03BB3&vid=59906B3B2830C2C5&iid=0B39A22176CE99FB&sid=35E8A259891FB32F&eid=683005D16807E4FE&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=20