ANALYSIS OF WEIGHTED MEDIAN FILTERS BASED ON INEQUALITIES RELATING THE WEIGHTS

被引：7

作者：

PRASAD, MK ^{[1
]}

LEE, YH ^{[1
]}

机构：

[1] KOREA ADV INST SCI & TECHNOL,DEPT ELECT ENGN,SEOUL 131,SOUTH KOREA

来源：

CIRCUITS SYSTEMS AND SIGNAL PROCESSING | 1992年 / 11卷 / 01期

关键词：

D O I：

10.1007/BF01189223

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：

By considering all orderings of the input samples, which are discrete-time continuous-valued, it is shown here that a weighted median (WM) filter of span N can be specified unambiguously by 2(N-1) consistent linear inequalities relating the weights. This specification is identical to that of a self-dual threshold function with the same weights. It is also shown that WM filters with symmetric weights can be specified by ternary threshold functions. Based on these inequalities, properties of WM filters which can be used to check equivalence of some WM filters are derived.

引用

页码：115 / 136

页数：22

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