A 610 Mbin/s CABAC decoder for H.265/HEVC level 6.1 applications

Yijin Zhao, Jinjia Zhou, Dajiang Zhou, Satoshi Goto

研究成果: Conference contribution

4 被引用数 (Scopus)


This paper presents a high-throughput decoder of HEVC context-based adaptive binary arithmetic coding (CABAC). A multi-sub-engine arithmetic decoder (MSE-AD) design is proposed to increase the average number of bins delivered per clock cycle by adaptively processing different patterns of upcoming bins with balanced critical path delay. A syntax element (SE) grouping scheme is proposed to maximize the utilization of MSE-AD under the SE parsing order specified in the standard. We also employ a prediction-based pipeline to alleviate the data hazard problem. The proposed CABAC decoder delivers 2.36 bins per clock cycle and achieves a maximum clock frequency of 258MHz in 90nm technology. The resulting performance is 610 Mbin/s which is enough for H.265/HEVC level 6.1 (8K×4K@60fps) applications.

ホスト出版物のタイトル2014 IEEE International Conference on Image Processing, ICIP 2014
出版社Institute of Electrical and Electronics Engineers Inc.
出版ステータスPublished - 2014 1月 28

ASJC Scopus subject areas

  • コンピュータ ビジョンおよびパターン認識


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