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영상개선을 위한 가중 메디안 혼성필터에 관한 연구

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Alternative Title
A study on the weighted median hybrid filter preserving image details
Abstract
The weighted median hybrid filters are proposed. These filters take weighting factors in calculatingly the output of subfilters of median hybrid filters. The properties of weighted median hybrid filters are analysed and compared to the conventional median filter. The results indicate that these filters preserve details of edge better than and are computationally much more efficient than conventional median filter.

Performances of some image restoration filters(i.e. weighted median hybrid filter, median hybrid filter, median filter and K-nearest neighbor averaging filter) are compared and evaluated on SNR gain and subject test. Test images used here are corrupted by Gaussian noise. Experimental results show that the weighed median hybrid filter among them are comparatively superior to others.
The weighted median hybrid filters are proposed. These filters take weighting factors in calculatingly the output of subfilters of median hybrid filters. The properties of weighted median hybrid filters are analysed and compared to the conventional median filter. The results indicate that these filters preserve details of edge better than and are computationally much more efficient than conventional median filter.

Performances of some image restoration filters(i.e. weighted median hybrid filter, median hybrid filter, median filter and K-nearest neighbor averaging filter) are compared and evaluated on SNR gain and subject test. Test images used here are corrupted by Gaussian noise. Experimental results show that the weighed median hybrid filter among them are comparatively superior to others.
Author(s)
허수진
Issued Date
1993
Type
Research Laboratory
URI
https://oak.ulsan.ac.kr/handle/2021.oak/5280
http://ulsan.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002024452
Alternative Author(s)
Huh, Soo-Jin
Publisher
울산의대학술지
Language
kor
Rights
울산대학교 저작물은 저작권에 의해 보호받습니다.
Citation Volume
2
Citation Number
2
Citation Start Page
125
Citation End Page
134
Appears in Collections:
Research Laboratory > The ULSAN university medical journal
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