基于三维规则数据场的一个特征可视化算法  

FEATURE VISUALIZATION OF 3D RECTILINEAR DATAFIELD

作　　者：赵吉兴[1] 

机构地区：[1]山东外贸职业学院,山东青岛266071

出　　处：《青岛大学学报（工程技术版）》2003年第3期15-19,共5页Journal of Qingdao University(Engineering & Technology Edition)

摘　　要：给出一种基于特定对象边缘抽取与绘制的特征可视化方法,该方法以在三维规则数据场中构造的一组Haralick正交多项式为基,在以各网格点为中心的子区域内求灰度分布的拟合函数,通过对拟合函数二阶方向导数零交叉点的判断,抽取特定对象的边缘点,在此基础上,考虑在18-连通意义下,三维边缘点的三角函数面片和多边形的表示与拼接。从中介绍这种特征可视化方法的实现,同时给出实验结果。This paper presents an approach to visualizing features of special objects contained in 3D rectilinear datafield. By constructing a group of 3d Haralick orthogonal polynomials, the distribution of value is fit in an area around each point in datafield. After that, the edge of a special object is detected by judging if there is a zero crossing occurred in the area , and the cells are divided into two groups: border cell and noborder cell. The border cell is rendered, together with some noborder cell, in polygons that show 18adjacency.The realization,as well as some experiment results is given.

关 键 词：三维规则数据场 可视化算法 图象处理 边缘特征 Haralick正交多项式集 特征面 数据结构 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]