Early detection algorithms for 8x8 all-zero blocks in H.264/AVC

Qin Liu*, Yiqing Huang, Takeshi Ikenaga

*この研究の対応する著者

研究成果: Conference contribution

抄録

8x8 transform has been introduced in H.264's high profile to improve the video quality. After transform and quantization, if all the coefficients of the block's residue data become zero, this block is called all-zero block (AZB). Many 4x4 transform AZB early detection algorithms have been proposed to skip transform and quantization process. In this paper, after theoretical analysis performed for the sufficient condition of 8x8 AZB detection, sum of absolute differences(SAD) and sum of absolute transformed(SATD) based 8 x 8 AZB detection algorithms are proposed. Experimental results show that the proposed algorithms achieve major improvement of computation reduction from 0.95% to 79.48% for 720p sequences. The computation reduction increases as QP increases.

本文言語English
ホスト出版物のタイトルProceedings of the 2008 IEEE 10th Workshop on Multimedia Signal Processing, MMSP 2008
ページ355-358
ページ数4
DOI
出版ステータスPublished - 2008
イベント2008 IEEE 10th Workshop on Multimedia Signal Processing, MMSP 2008 - Cairns, QLD, Australia
継続期間: 2008 10月 82008 10月 10

出版物シリーズ

名前Proceedings of the 2008 IEEE 10th Workshop on Multimedia Signal Processing, MMSP 2008

Conference

Conference2008 IEEE 10th Workshop on Multimedia Signal Processing, MMSP 2008
国/地域Australia
CityCairns, QLD
Period08/10/808/10/10

ASJC Scopus subject areas

  • コンピュータ グラフィックスおよびコンピュータ支援設計
  • 信号処理
  • 電子工学および電気工学

引用スタイル