QUANTITATIVE-ANALYSIS OF ARTIFACTS IN LINEAR SPACE-INVARIANT IMAGE-RESTORATION

被引:21
作者
TEKALP, AM [1 ]
SEZAN, MI [1 ]
机构
[1] EASTMAN KODAK CO,RES LABS,IMAGING SCI LAB,ROCHESTER,NY 14650
关键词
Adaptive Restoration; Image Restoration; Restoration Artifacts; Suppression of Restoration Artifacts;
D O I
10.1007/BF01816547
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
Several image restoration algorithms exist in the literature ranging from deterministic iterative techniques to optimum recursive methods. Unfortunately, all these algorithms produce undesirable artifacts in the process of undoing the degradations because of the ill-posed nature of the image restoration problem. This paper provides a complete quantitative analysis of different artifacts caused by linear shift-invariant (LSI) image restoration methods. The aim of this paper is the mathematically show how these artifacts originate in the general case of an arbitrary blur point spread function and an arbitrary LSI restoration filter, and then to study the characteristics of these artifacts in the special cases of uniform motion blur and out-of-focus blur via experimental analysis. Several pictures that illustrate these artifacts are presented. We discuss strategies for the suppression of these artifacts based on the analysis provided.
引用
收藏
页码:143 / 177
页数:35
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