TY - GEN
T1 - Fast sample adaptive offset for H.265/HEVC based on temporal dependency
AU - Yang, Kaifang
AU - Wan, Shuai
AU - Gong, Yanchao
AU - Yang, Yuan
AU - Feng, Yan
N1 - Publisher Copyright:
© 2016 Asia Pacific Signal and Information Processing Association.
PY - 2017/1/17
Y1 - 2017/1/17
N2 - The newly introduced in-loop filter in H.265/HEVC, i.e., sample adaptive offset (SAO), can effectively improve the coding efficiency as well as the subjective quality of encoded videos. However, complex operations are needed in the procedure of SAO which imposes challenges for real-time applications. In this paper, the temporal relationships of two SAO parameters between the temporal base layer and higher temporal layers are explored and utilized to propose a fast SAO method for reducing the computational complexity. Experimental results show that, compared to the original SAO implementation in the reference software model of H.265/HEVC, i.e., HM13.0, the proposed fast SAO method achieves an average of 72.28% reduction in SAO processing time with the average BD-rate increment being 0.56% for LD-P, LD-B and RA configurations.
AB - The newly introduced in-loop filter in H.265/HEVC, i.e., sample adaptive offset (SAO), can effectively improve the coding efficiency as well as the subjective quality of encoded videos. However, complex operations are needed in the procedure of SAO which imposes challenges for real-time applications. In this paper, the temporal relationships of two SAO parameters between the temporal base layer and higher temporal layers are explored and utilized to propose a fast SAO method for reducing the computational complexity. Experimental results show that, compared to the original SAO implementation in the reference software model of H.265/HEVC, i.e., HM13.0, the proposed fast SAO method achieves an average of 72.28% reduction in SAO processing time with the average BD-rate increment being 0.56% for LD-P, LD-B and RA configurations.
UR - https://www.scopus.com/pages/publications/85013864143
U2 - 10.1109/APSIPA.2016.7820856
DO - 10.1109/APSIPA.2016.7820856
M3 - 会议稿件
AN - SCOPUS:85013864143
T3 - 2016 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2016
BT - 2016 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2016
Y2 - 13 December 2016 through 16 December 2016
ER -