%0 Journal Article
%T Key techniques on terrain rendering based on wavelet translation<br>基于小波变换的地形绘制关键技术研究
%A WEI Ying-mei
%A ZHOU Kan
%A WU Ling-da
%A <br>魏迎梅
%A 周侃
%A 吴玲达
%J 计算机应用研究
%D 2009
%I 
%X This paper showed how to select suitable wavelet basis for terrain rendering according to the characteristic of DEM data and how to filter wavelet coefficients according to viewpoint and complexity of the terrain block to implement progressive reconstruction. Then it analyzed several boundary problems caused by block wavelet transform and gave the solution. Finally, it proposed an acceleration algorithm for wavelet translation based on GPU to improve rendering efficiency.
%K DEM data
%K multi-resolution model
%K wavelet basis
%K wavelet transformation
%K progressive reconstruction
%K GPU acceleration<br>DEM数据
%K 多分辨率模型
%K 小波基
%K 小波变换
%K 渐近重构
%K GPU加速
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=0006890ECC1FD96545E85F4546B286CC&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=708DD6B15D2464E8&sid=757A2535D88A1D0E&eid=3D19DD21EF89D3EB&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=6