%0 Journal Article
%T Nonuniform simplification of cloud data based on octree<br>基于八叉树的海量测量数据的非均匀简化
%A MA Lei
%A PENG Guo-hua
%A GENG Dong-fang
%A <br>马磊
%A 彭国华
%A 耿东芳
%J 计算机应用
%D 2007
%I 
%X An efficient nonuniform simplification algorithm was proposed. At first, the minimum cube box of the data sets was gained, and it was divided into eight cubes with employment of oetree. Then surface variation of local discrete surface and the number of points in nonempty cubes were calculated, and these cubes were divided continually or not according to the two user-specified thresholds. In the end, one point was reserved for each leaf cube. Practical examples show that the efficient method can exactly retain geometric characteristics of original dates and be applicable for complex cloud data.
%K reverse engineering
%K nonuniform simplification
%K surface variation<br>逆向工程
%K 非均匀简化
%K 曲面变分
%K 八叉树
%K 海量测量数据
%K 非均匀
%K 简化方法
%K octree
%K based
%K data
%K cloud
%K simplification
%K 几何特征
%K 速度
%K 子立方体
%K 阈值
%K 用户
%K 变分
%K 离散曲面
%K 局部
%K 计算
%K 原理
%K 应用
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=14E16CBD274305120E673D0948735328&yid=A732AF04DDA03BB3&vid=DB817633AA4F79B9&iid=5D311CA918CA9A03&sid=8E60891DE9EC9643&eid=FA80E56BCE302C59&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=6