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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국정보처리학회 JIPS(Journal of Information Processing Systems) JIPS(Journal of Information Processing Systems) 제12권 제4호
- 발행연도
- 2016.12
- 수록면
- 631 - 643 (13page)
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초록· 키워드
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Due to the block-based discrete cosine transform (BDCT), JPEG compressed images usually exhibit blocking artifacts. When the bit rates are very low, blocking artifacts will seriously affect the image’s visual quality. A bilateral filter has the features for edge-preserving when it smooths images, so we propose an adaptiveweighted bilateral filter based on the features. In this paper, an image-deblocking scheme using this kind of adaptive-weighted bilateral filter is proposed to remove and reduce blocking artifacts. Two parameters of the proposed adaptive-weighted bilateral filter are adaptive-weighted so that it can avoid over-blurring unsmooth regions while eliminating blocking artifacts in smooth regions. This is achieved in two aspects: by using local entropy to control the level of filtering of each single pixel point within the image, and by using an improved blind image quality assessment (BIQA) to control the strength of filtering different images whose blocking artifacts are different. It is proved by our experimental results that our proposed image-deblocking scheme provides good performance on eliminating blocking artifacts and can avoid the over-blurring of unsmooth regions.
목차
등록된 정보가 없습니다.
참고문헌 (13)
참고문헌 신청
G. K. Wallace / 1992 / The JPEG still picture compression standard / IEEE Transactions on Consumer Electronics 38(1):18~34
G. J. Sullivan / 2012 / Overview of the high efficiency video coding(HEVC)standard / IEEE Transactions on Circuits and Systems for Video Technology 22(12):1649~1668
R. K. Lama / 2014 / Post processing algorithm for reduction of blocking artifact in HDTV / Proceedings of the IEEE International Conference on Consumer Electronics :532~535
V. Kapinaiah / 2013 / Image deblocking by transcoding DCT blocks to wavelet subbands / Proceedings of the 8th International Symposium on Image and Signal Processing and Analysis :251~256
J. J. Zou / 2005 / A deblocking method for BDCT compressed images based on adaptive projections / IEEE Transactions on Circuits and Systems for Video Technology 15(3):430~435
G. J. Sullivan / 2012 / Overview of the high efficiency video coding(HEVC)standard / IEEE Transactions on Circuits and Systems for Video Technology 22(12):1649~1668
R. K. Lama / 2014 / Post processing algorithm for reduction of blocking artifact in HDTV / Proceedings of the IEEE International Conference on Consumer Electronics :532~535
V. Kapinaiah / 2013 / Image deblocking by transcoding DCT blocks to wavelet subbands / Proceedings of the 8th International Symposium on Image and Signal Processing and Analysis :251~256
J. J. Zou / 2005 / A deblocking method for BDCT compressed images based on adaptive projections / IEEE Transactions on Circuits and Systems for Video Technology 15(3):430~435
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