Region-of-interest based H.264 encoding parameter allocation for low power video communication

Minghui Wang*, Tianruo Zhang, Chen Liu, Satoshi Goto

*この研究の対応する著者

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

H.264 is the state-of-the-art in modern video compression standards. Its extremely high compression ratio meets the requirements the video communication between portable devices. Since the power is limited in portable devices, the huge computation of H.264 is a critical problem for hardware design. According to the human visual system (HVS) research, human vision is only able to focus on one area in a frame, which is defined as region-of-interest (ROI). In most cases, human face attracts the most attention of the device user. This phenomenon gives a chance to code all macroblocks unequally. In this work, the ROI is detected with an encoder-oriented fast algorithm, using chrominance and texture contrast features. After the ROI is detected, the encoder will allocated the coding parameters respectively in ROI and non-ROI. As a result, it keeps fine quality in ROI, saves much throughput in non-ROI, and greatly reduces the computation. The ROI detector and the encoder are also designed to be decoding-friendly and hardware-friendly.

本文言語English
ホスト出版物のタイトルProceedings of 2009 5th International Colloquium on Signal Processing and Its Applications, CSPA 2009
ページ233-237
ページ数5
DOI
出版ステータスPublished - 2009
イベント2009 5th International Colloquium on Signal Processing and Its Applications, CSPA 2009 - Kuala Lumpur
継続期間: 2009 3 62009 3 8

Other

Other2009 5th International Colloquium on Signal Processing and Its Applications, CSPA 2009
CityKuala Lumpur
Period09/3/609/3/8

ASJC Scopus subject areas

  • 計算理論と計算数学
  • コンピュータ サイエンスの応用
  • コンピュータ ビジョンおよびパターン認識
  • 信号処理

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