FOLD PRINCIPAL AXIS - A NEW TOOL FOR DEFINING THE ORIENTATIONS OF ROTATIONALLY SYMMETRICAL SHAPES

被引：16

作者：

CHOU, SL

LIN, JC

TSAI, WH

机构：

[1] NATL CHIAO TUNG UNIV,DEPT COMP & INFORMAT SCI,HSINCHU 30050,TAIWAN

[2] NATL CHIAO TUNG UNIV,INST COMP SCI & INFORMAT ENGN,HSINCHU 30050,TAIWAN

来源：

PATTERN RECOGNITION LETTERS | 1991年 / 12卷 / 02期

关键词：

ROTATIONALLY SYMMETRICAL SHAPE; FOLD-EXPANDED SHAPE; PRINCIPAL AXIS; FOLD PRINCIPAL AXIS; HIGH-ORDER GENERALIZED PRINCIPAL AXIS;

D O I：

10.1016/0167-8655(91)90056-R

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

A new type of principal axis, namely, fold principal axis, is introduced in this paper, which can be used to define the orientations of rotationally symmetric shapes. A given shape is first transformed into a new shape on which the well-defined traditional principal axis is detected. The traditional principal axis is then transformed back to obtain the proposed fold principal axes of the given shape. The properties of such axes, including the uniqueness, existence, and invariance under rotation, translation, and scaling, are investigated. Some illustrative examples are also given.

引用

页码：109 / 115

页数：7