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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전자공학회 IEIE Transactions on Smart Processing & Computing IEIE Transactions on Smart Processing & Computing Vol.5 No.2
- 발행연도
- 2016.4
- 수록면
- 129 - 142 (14page)
이용수
초록· 키워드
오류제보하기
In Wyner-Ziv coding, video signals are reconstructed by correcting side information generated by block-based motion estimation/compensation at the decoder. The correction is not always accurate due to the limited number of parity bits and early stopping of low-density parity check accumulate (LDPCA) decoding in distributed video coding, or due to the limited number of measurements in distributed compressive video sensing. The blocking artifacts caused by blockbased processing are usually conspicuous in smooth areas and degrade the perceptual quality of the reconstructed video. Conventional deblocking filters try to remove the artifacts by treating both sides of the block boundary equally; however, coding errors generated by block-based processing
are not necessarily the same on both sides of the block boundaries. Such a block-wise difference is exploited in this paper to improve deblocking for Wyner-Ziv frameworks by designing a filter where the deblocking strength at each block can be non-identical, depending on the reliability of the reconstructed pixels. Test results show that the proposed filter not only improves subjective quality by reducing the coding artifacts considerably, but also gains rate distortion performance.
are not necessarily the same on both sides of the block boundaries. Such a block-wise difference is exploited in this paper to improve deblocking for Wyner-Ziv frameworks by designing a filter where the deblocking strength at each block can be non-identical, depending on the reliability of the reconstructed pixels. Test results show that the proposed filter not only improves subjective quality by reducing the coding artifacts considerably, but also gains rate distortion performance.
목차
Abstract
1. Introduction
2 Blocking Artifacts in Wyner-Ziv Video Coding
3. Proposed Reliability-Based Deblocking Filter
4. Experimental Results
5. Conclusions
References
참고문헌 (40)
참고문헌 신청
I. E. G. Richardson, H.264 and MPEG-4 video compression: video coding for next generation multimedia (John Wiley & Son Ltd., Wiltshire, 92003)
D. Slepian and J.K. Wolf, “Noiseless coding of correlated information sources,” IEEE Trans. on Inform. Theory, vol. IT-19, pp. 471-480, 1973. Article (CrossRef Link)
D. Wyner and J. Ziv, “The rate-distortion function for source coding with side information at the decoder,” IEEE Trans. on Inform. Theory, vol. IT-22, pp. 1-10, 1976. Article (CrossRef Link)
R Martins, C. Brites, J. Ascenso, and F. Pereira, “Adaptive deblocking filter for transform domain Wyner-Ziv video coding,” IET Image Processing, vol. 3, pp. 315-328, 2009. Article (CrossRef Link)
S. Mun and J. E. Fowler, “Residual reconstruction for block-based compressed sensing of video,” Proc. Data Compression Conf., pp. 183-192, USA, 2011. Article (CrossRef Link)
D. Slepian and J.K. Wolf, “Noiseless coding of correlated information sources,” IEEE Trans. on Inform. Theory, vol. IT-19, pp. 471-480, 1973. Article (CrossRef Link)
D. Wyner and J. Ziv, “The rate-distortion function for source coding with side information at the decoder,” IEEE Trans. on Inform. Theory, vol. IT-22, pp. 1-10, 1976. Article (CrossRef Link)
R Martins, C. Brites, J. Ascenso, and F. Pereira, “Adaptive deblocking filter for transform domain Wyner-Ziv video coding,” IET Image Processing, vol. 3, pp. 315-328, 2009. Article (CrossRef Link)
S. Mun and J. E. Fowler, “Residual reconstruction for block-based compressed sensing of video,” Proc. Data Compression Conf., pp. 183-192, USA, 2011. Article (CrossRef Link)
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UCI(KEPA) : I410-ECN-0101-2016-569-002836996