DIRECTIONAL STATISTICS IN NONLINEAR VECTOR FIELD FILTERING

被引：8

作者：

NIKOLAIDIS, N ^{[1
]}

PITAS, I ^{[1
]}

机构：

[1] UNIV THESSALONIKI,DEPT ELECT ENGN,GR-54006 THESSALONIKI,GREECE

来源：

SIGNAL PROCESSING | 1994年 / 38卷 / 03期

关键词：

ANGULAR STATISTICS; MEDIAN FILTERS; COLOR IMAGE PROCESSING; VECTOR FIELD FILTERING;

D O I：

10.1016/0165-1684(94)90151-1

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Vector fields play an important role in the area of color image processing and image sequence processing. In certain cases (e.g. motion direction estimation, Hue color component filtering), vector representation and manipulation in a polar coordinate system can be advantageous. In this paper we present a review of the theory of angular statistics along with some new theoretical results. Emphasis is given to direction estimators. An application illustrating the use of measures of angular dispersion in color edge detection is provided. Various ordering principles for directional data are presented. The effectiveness of direction estimators in filtering of directional data is studied in simulations involving color images and velocity fields.

引用

页码：299 / 316

页数：18

共 20 条

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