首页 | 本学科首页   官方微博 | 高级检索  
     检索      

基于k阶Voronoi多边形划分的k阶数据场拟合
引用本文:韩元利,胡鹏,黄雪莲,张立华.基于k阶Voronoi多边形划分的k阶数据场拟合[J].武汉大学学报(信息科学版),2007,32(4):353-357.
作者姓名:韩元利  胡鹏  黄雪莲  张立华
作者单位:1. 武汉大学资源与环境科学学院,430079;武汉大学地理信息系统教育部重点实验室,430079
2. 海军大连舰艇学院海测工程系,116018
摘    要:讨论了k阶Voronoi图的离散点集的生成算法,挖掘了k阶Voronoi图的性质并加以证明;参照k阶Voronoi图的定义提出了k阶空间数据场的定义,并结合参考点利用其影响因子给出了低阶空间数据场的拟合函数通式;利用k阶Voronoi图对平面空间的平面区域最近邻近划分实现了对空间数据场的分割,从而将大量参考点集数据场化解为多个单元数据场的低阶拟舍,有效地降低了数据场拟舍的难度;提出了合并拟合和叠加拟合策略,实现了将单元数据场综合为完整的空间数据场。

关 键 词:k阶Voronoi  k阶数据场  曲面拟合  辐射源数据场
文章编号:1671-8860(2007)04-0353-05
修稿时间:2007年1月20日

k-Data Field Approximation Method Based on k-Voronoi Diagram Division
HAN Yuanli,HU Peng,HUANG Xuelian,ZHANG Lihua.k-Data Field Approximation Method Based on k-Voronoi Diagram Division[J].Geomatics and Information Science of Wuhan University,2007,32(4):353-357.
Authors:HAN Yuanli  HU Peng  HUANG Xuelian  ZHANG Lihua
Abstract:The method for building k-voronoi diagram is discussed and the k-voronoi diagram characters is mined and argued.Referring k-data field's definition from k-voronoi diagram's definition,low k-data field's approximation common function is proposed combinated with reference points and its factors function.The plane space most-close-units division is realized and thus the integrity data field can approximate individually through low k-data field's surface approximation group by each units,which way can greatly dissolve the difficulty of building large number points' surface approximation.In order to integrate these small units' data field,combination integration policy and superposition integration policy are put forward to keep the final data field integrity and smoothly.As a good example to testify the legitimacy of proposed method,the potential function replaces the factor function and the radiant points data field's approximation is realized.
Keywords:k-Voronoi  k-data field  bend surface approximation  radiant points data field
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号