基于点的三维模型压缩技术研究进展.pdfVIP

第 21 卷第10 期 计算挽辅助设计与自形学学报 Vol. 2 1, No.10 2009 年 10 月 JOURNAL OF COMPUTER-AIDED DESIGN . COMPUTER GRAPHICS 0悦. • 2009 基于点的三维模型压缩技术研究进展 王鹏杰1.2) 潘志寰1) 刘勇奎2l 1)(浙江大学 CAD .囚罔家重点实验室 杭州 31 ∞27) 2) (大连民族学院计算极科学与工程学院 大连 116600) (wangpengj四@cad. zju. edu. cn) 摘 要 基于点的图形学是近年来的一个研究热点，但由于基于点的模型〈点模型〉数据往往非常庞大，为便于存储 和网络传输，有效地对这些数据进行压缩非常重要.总结了点模型的压缩流程，并绘出丁点模型压缩算法的分类原 则:然后以单分辨率算法和渐进算法为主线，详细介绍了点模型压缩的必威体育精装版研究进展，分析比较了相应的关键技术z 绿后对该领域未来的发展提出了一些研究建议. 关键词 基于点的图形学;点，模型号单分辨率压缩;渐进压缩 *噩法分类号 TP391 Recent Advances in Compression of Point-Based 3D Models 2 ll 2 Wang Pengjié ) Pan Zhigeng Liu Yongkui ) 门 (State Key Laboratory of CAD . (刀， Zhejiang Univer.ity. Hangzhou 310027) 21 (College of Computer Science . Engineering , Valian Nationalíti臼 Uni回rsity. Dalian 116600) Abstract Point-based graphics a hot research topic in computer gr叩hics in recent years. Since the point-based models are usually very large , it ís important to develop effective compression techniques for storing and transmitting them on the network. In this paper , we overview the basic compression framework for point-based models , and present some classifîcation criteria for the compression methods. Then , for the two main categories. single-rate method and progressive method. we revisit and compare mostly recently developed point-based compression schemes. After analyzing and evaluating the key techniques in these schemes , we discuss some possíble directíons for future work ín thís area. Key words point-based graphics; point-hased model; single-rate compression; progressive compression 基于点的自形学应运陌生f 叫并成为近年来的研究 三维扫描技术的迅速发展使得扫擂既得的模型 热点[3-6]目前，怎样在有嚣的存储空间和网络带宽 的顶点数目达到百万甚至