%0 Journal Article
%T Rate-distortion Optimized Progressive Geometry Compression<br>率-失真优化的渐进几何压缩
%A ZHANG Wen-Bo
%A LIU Bo
%A ZHANG Hong-Bin
%A <br>张文博
%A 刘波
%A 张鸿宾
%J 自动化学报
%D 2007
%I 
%X A novel scheme for rate-distortion(R-D)optimized progressive geometry compression is proposed.According to the non-uniform distribution of the model details,the model details are grouped into blocks,and each block is encoded independently.The encoded bit-streams of the blocks are assembled into a code stream based on R-D optimization,which ensures allocating bitrates to the blocks with richer details preferentially.Experimental results show that the proposed algorithm,compared with the well-known PGC,provides PSNR improvements by about 2.25 dB at low bitrate.Moreover, the scheme provides a new approach to realize region of interest(ROI)coding of 3D meshes efficiently.
%K Rate-distortion optimizations
%K progressive geometry compression
%K mesh partition
%K region of interest coding<br>率-失真优化
%K 渐进几何压缩
%K 网格分块
%K 感兴趣区域编码
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=E76622685B64B2AA896A7F777B64EB3A&aid=4A7264E289909972&yid=A732AF04DDA03BB3&vid=27746BCEEE58E9DC&iid=F3090AE9B60B7ED1&sid=A40901B6135B333E&eid=5CC11A326E54A79A&journal_id=0254-4156&journal_name=自动化学报&referenced_num=0&reference_num=15