%0 Journal Article
%T LDM-Pack: A New Method for Rendering Trees Rapidly<br>层次深度拼图集：一种新的树木快速绘制方法
%A ZHANG Huai-sheng
%A HUA Wei
%A WANG Qing
%A BAO Hu-jun
%A <br>张淮声
%A 华炜
%A 王青
%A 鲍虎军
%J 中国图象图形学报
%D 2004
%I 
%X This paper presents a new specification of LDM-Pack tree, which renders trees rapidly with high fidelity. It first samples the tree model, and gains its LDI-Packs. All LDI-Pack textures are compressed by an occlusion-inclusive compression approach, and packed into texture packages. Then the corresponding LDM-Packs are created from LDI-Packs according to the predetermined viewpoints. Thus, a tree is specified by a group of LDM-Packs with several sample directions. When rendering stage, one blending scheme is used to render correct LDM-Packs for smooth transitions. Shown by the experiments, the number of rendering depth mosaics is less than the one of the tree original polygons.
%K levels of detail(LOD)
%K layered depth image(LDI)
%K depth mosaic(DM)<br>快速绘制
%K 拼图
%K 纹理图像
%K 融合策略
%K 树模型
%K 层次
%K 遮挡
%K 深度
%K 组合
%K 方向
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=3368F8B04BFF37F3&yid=D0E58B75BFD8E51C&vid=9CF7A0430CBB2DFD&iid=F3090AE9B60B7ED1&sid=DB29DCDE63A11F6A&eid=966030800FCA5D46&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=9&reference_num=14