ROI based complexity reduction algorithm for H.264 encoder

Tianruo Zhang, Xin Jin, Chen Liu, Minghui Wang, Satoshi Goto

研究成果: Conference contribution

1 引用 (Scopus)

抜粋

This paper proposes a region-of-interest (ROI) based H.264/AVC encoder which reduces computational complexity. A proposed fast ROI detection algorithm which can detect face-like regions as ROIs is applied to obtain accurate and small ROI so as to reduce the necessary coding effort of the encoder. The complexity reduction algorithm contains 3 methods: (1) the inter prediction mode selection based on quality difference and ROI status, (2) unequal coding efficiency degradation based on unequal bits allocation, and (3) the ROI boundary enhancement to reduce the coding complexity of center MBs of ROI. Experimental results show that proposed novel ROI detection and complexity reduction scheme can reduce 76.10% simulation time when QP difference between ROI and non-ROI is 20. Compared with previous work, 19.09% of encoding time is further reduced with similar performance degradation.

元の言語English
ホスト出版物のタイトル2010 International SoC Design Conference, ISOCC 2010
ページ236-239
ページ数4
DOI
出版物ステータスPublished - 2010
イベント2010 International SoC Design Conference, ISOCC 2010 - Incheon
継続期間: 2010 11 222010 11 23

Other

Other2010 International SoC Design Conference, ISOCC 2010
Incheon
期間10/11/2210/11/23

    フィンガープリント

ASJC Scopus subject areas

  • Hardware and Architecture

これを引用

Zhang, T., Jin, X., Liu, C., Wang, M., & Goto, S. (2010). ROI based complexity reduction algorithm for H.264 encoder. : 2010 International SoC Design Conference, ISOCC 2010 (pp. 236-239). [5682927] https://doi.org/10.1109/SOCDC.2010.5682927