Pre-processor of the region-of-interest based H.264 encoder for low power application

Minghui Wang*, Tianruo Zhang, Satoshi Goto

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

As the state-of-the-art of the modern video compression standard, H264 shows a high coding performance. Introducing the motion estimation method, it has ten times computation comparing to MPEG2. The high computational requirement makes it hard to implement on portable devices. According to the human visual system (HVS) research, human eyes can only focus on one area in a frame, which is called region-of-interest (ROI). This phenomenon gives a chance to code all macro blocks (MB) unequally. In this work a ROI detector is involved as a pre-processor of the encoder. Although the ROI corresponding the global information, the proposed design makes the detection processes pixel by pixel. It saves the memory to meet the limited hardware resource. The pre-processor itself do not cost much hardware and power, while according to the simulation result, in the system level the ROI based encoder can save 60% computation compare to the standard H264 encoder design.

本文言語English
ホスト出版物のタイトルASICON 2009 - Proceedings 2009 8th IEEE International Conference on ASIC
ページ171-174
ページ数4
DOI
出版ステータスPublished - 2009
イベント2009 8th IEEE International Conference on ASIC, ASICON 2009 - Changsha
継続期間: 2009 10 202009 10 23

Other

Other2009 8th IEEE International Conference on ASIC, ASICON 2009
CityChangsha
Period09/10/2009/10/23

ASJC Scopus subject areas

  • ハードウェアとアーキテクチャ
  • 電子工学および電気工学

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