RANDOM-VALUED IMPULSE NOISE DETECTOR FOR SWITCHING MEDIAN FILTERS USING EDGE DETECTORS

被引：0
|
作者：
Grou-Szabo, Robert [1 ]
Shibata, Tadashi [1 ]
机构：
[1] Univ Tokyo, Dept Frontier Informat, Grad Sch Frontier Sci, Bunkyo Ku, Tokyo 1138656, Japan
来源：
2009 3RD INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION SYSTEMS | 2009年
关键词：
REMOVAL;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper talks about a random impulse-noise detection scheme that was developed to be used as the first stage of a switching median filter. First by using an edge detector with a dynamic threshold, hidden artifacts are revealed by gradually changing the threshold of the edge detector. Then by applying a series of masks to the edge maps, the artifacts are pinpointed and tabulated. By analyzing the statistical data, the intensity of the random impulse noise corrupting a pixel is estimated. This information can then be passed on to an adaptive noise reduction filter that can eliminate it with a correlated intensity.
引用
收藏
页码：275 / 278
页数：4
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