Hardware oriented category pre-determination algorithm for SAO in HEVC

Gaoxing Chen; Zhenyu Pei; Zhenyu Liu; Takeshi Ikenaga

doi:10.1109/APSIPA.2014.7041582

Hardware oriented category pre-determination algorithm for SAO in HEVC

Gaoxing Chen, Zhenyu Pei, Zhenyu Liu, Takeshi Ikenaga

大学院情報生産システム研究科

研究成果: Conference contribution

抄録

High efficiency video coding (HEVC) is a video compression standard that outperforms the predecessor H.264/AVC by doubling the compression efficiency. To enhance the coding accuracy, HEVC adopts sample adaptive offset (SAO) which classifies reconstructed pixels into different categories. During the pixel classification, however, SAO cannot use the raw samples in the current code-tree-block (CTB) boundary 4 × 4-blocks because these pixels need to be processed by deblocking filter first, which poses the problem for hardware design. This paper proposes hardware oriented category pre-determination algorithm which estimates the deblocking strengthens on CTB boundaries and selects the promising samples in these areas during SAO classification. Compared with HEVC test mode (HM12.0), experiment results illustrate that the proposed method achieves the average 0.1% BD-bitrate (BDBR) reduction, or equivalently 0.008 db PSNR increasing.

本文言語	English
ホスト出版物のタイトル	2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
出版社	Institute of Electrical and Electronics Engineers Inc.
ISBN（印刷版）	9786163618238
DOI	https://doi.org/10.1109/APSIPA.2014.7041582
出版ステータス	Published - 2014 2月 12
イベント	2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014 - Chiang Mai, Thailand 継続期間: 2014 12月 9 → 2014 12月 12

Other

Other	2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
国/地域	Thailand
City	Chiang Mai
Period	14/12/9 → 14/12/12

ASJC Scopus subject areas

信号処理
情報システム

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10.1109/APSIPA.2014.7041582

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Chen, G, Pei, Z, Liu, Z & Ikenaga, T 2014, Hardware oriented category pre-determination algorithm for SAO in HEVC. in 2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014., 7041582, Institute of Electrical and Electronics Engineers Inc., 2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014, Chiang Mai, Thailand, 14/12/9. https://doi.org/10.1109/APSIPA.2014.7041582

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Hardware oriented category pre-determination algorithm for SAO in HEVC

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