A fixed-complexity HEVC inter mode filtering algorithm based on distribution of IME-FME cost ratio

Jinjia Zhou; Yizhou Zou; Dajiang Zhou; Satoshi Goto

doi:10.1109/ISCAS.2015.7168709

A fixed-complexity HEVC inter mode filtering algorithm based on distribution of IME-FME cost ratio

Jinjia Zhou, Yizhou Zou, Dajiang Zhou, Satoshi Goto

情報生産システム研究センター

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Motion Estimation (ME) is a key performance bottleneck of H.265/HEVC encoding. In implementing ME, a fixed or bounded complexity is often desired for efficient pipelining and parallelism. We present a fixed-complexity mode filtering algorithm to reduce the complexity of fractional ME (FME). Firstly, a layer filtering is applied to select the mode candidates. Secondly, the ratio of integer-fractional ME costs (R_f/i) is defined and the confidence interval of R_f/i is utilized for further mode selection. Finally, an algorithm to fix the complexity is applied. Experimental results show that the FME encoding time is reduced by 83.3% with slightly BD-rate increase.

本文言語	English
ホスト出版物のタイトル	Proceedings - IEEE International Symposium on Circuits and Systems
出版社	Institute of Electrical and Electronics Engineers Inc.
ページ	617-620
ページ数	4
巻	2015-July
ISBN（印刷版）	9781479983919
DOI	https://doi.org/10.1109/ISCAS.2015.7168709
出版ステータス	Published - 2015 7月 27
イベント	IEEE International Symposium on Circuits and Systems, ISCAS 2015 - Lisbon, Portugal 継続期間: 2015 5月 24 → 2015 5月 27

Other

Other	IEEE International Symposium on Circuits and Systems, ISCAS 2015
国/地域	Portugal
City	Lisbon
Period	15/5/24 → 15/5/27

ASJC Scopus subject areas

電子工学および電気工学

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10.1109/ISCAS.2015.7168709

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引用スタイル

Zhou, J, Zou, Y, Zhou, D & Goto, S 2015, A fixed-complexity HEVC inter mode filtering algorithm based on distribution of IME-FME cost ratio. in Proceedings - IEEE International Symposium on Circuits and Systems. vol. 2015-July, 7168709, Institute of Electrical and Electronics Engineers Inc., pp. 617-620, IEEE International Symposium on Circuits and Systems, ISCAS 2015, Lisbon, Portugal, 15/5/24. https://doi.org/10.1109/ISCAS.2015.7168709

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abstract = "Motion Estimation (ME) is a key performance bottleneck of H.265/HEVC encoding. In implementing ME, a fixed or bounded complexity is often desired for efficient pipelining and parallelism. We present a fixed-complexity mode filtering algorithm to reduce the complexity of fractional ME (FME). Firstly, a layer filtering is applied to select the mode candidates. Secondly, the ratio of integer-fractional ME costs (Rf/i) is defined and the confidence interval of Rf/i is utilized for further mode selection. Finally, an algorithm to fix the complexity is applied. Experimental results show that the FME encoding time is reduced by 83.3% with slightly BD-rate increase.",

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Y1 - 2015/7/27

N2 - Motion Estimation (ME) is a key performance bottleneck of H.265/HEVC encoding. In implementing ME, a fixed or bounded complexity is often desired for efficient pipelining and parallelism. We present a fixed-complexity mode filtering algorithm to reduce the complexity of fractional ME (FME). Firstly, a layer filtering is applied to select the mode candidates. Secondly, the ratio of integer-fractional ME costs (Rf/i) is defined and the confidence interval of Rf/i is utilized for further mode selection. Finally, an algorithm to fix the complexity is applied. Experimental results show that the FME encoding time is reduced by 83.3% with slightly BD-rate increase.

AB - Motion Estimation (ME) is a key performance bottleneck of H.265/HEVC encoding. In implementing ME, a fixed or bounded complexity is often desired for efficient pipelining and parallelism. We present a fixed-complexity mode filtering algorithm to reduce the complexity of fractional ME (FME). Firstly, a layer filtering is applied to select the mode candidates. Secondly, the ratio of integer-fractional ME costs (Rf/i) is defined and the confidence interval of Rf/i is utilized for further mode selection. Finally, an algorithm to fix the complexity is applied. Experimental results show that the FME encoding time is reduced by 83.3% with slightly BD-rate increase.

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KW - H.265

KW - HEVC

KW - inter prediction

KW - mode filtering

KW - motion estimation

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A fixed-complexity HEVC inter mode filtering algorithm based on distribution of IME-FME cost ratio

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