대한전자공학회논문지 (Journal of the Korean Institute of Telematics and Electronics)
- 제24권6호
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- Pages.1005-1012
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- 1987
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- 1016-135X(pISSN)
영상 복원을 위한 적응 DCT-Wiener 필터
Adaptive DCT-Wiener Filter for Image Restoration
초록
An adaptive scalar DCT-Wiener filtering method that can be applied to the problem of restoring an image degraded by white Gaussian noise is presented. In this method, the power spectrum needed to Winer filering is adaptively estimated in block-wise according to the lical properties in transform domain. In addition, overlapping method for reducing the block artifact is considered. Experimental results show that the adaptive Wiener filter by the proposed method yields performance improvement and better image quality over the nonadaptive one and the spatial Lee filter.
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