On bit allocation and Lagrange multiplier adjustment for rate-distortion optimized H.264 rate control

Shuijiong Wu*, Peilin Liu, Yiqing Huang, Qin Liu, Takeshi Ikenaga

*この研究の対応する著者

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

This paper presents an on bit allocation and Lagrange multiplier (λMODE) adjustment for H.264 rate control. To enhance the precision of the complexity estimation and bit allocation, a frequency-domain parameter named mean-absolute-transform-difference (MATD) is adopted to represent frame and macroblock (MB) residual complexity. Second, the MATD ratio is utilized to enhance the accuracy of frame layer bit prediction. Then, by considering the bit usage status of whole sequence, a measurements combining forward and backward bit analysis is proposed to optimize the λMODE on frame layer. On MB layer, bits are allocated by proposed remaining complexity analysis. The computed quantization parameter (QP) is further adjusted according to predicted MB texture bits. Simulation results verify the performance of the proposed algorithm. Compared with the recommended rate control in H.264 reference software JM13.2, the PSNR improvement is up to 1.13 dB by using our algorithm.

本文言語English
ホスト出版物のタイトル2009 IEEE International Workshop on Multimedia Signal Processing, MMSP '09
DOI
出版ステータスPublished - 2009 12月 1
イベント2009 IEEE International Workshop on Multimedia Signal Processing, MMSP '09 - Rio De Janeiro, Brazil
継続期間: 2009 10月 52009 10月 7

出版物シリーズ

名前2009 IEEE International Workshop on Multimedia Signal Processing, MMSP '09

Conference

Conference2009 IEEE International Workshop on Multimedia Signal Processing, MMSP '09
国/地域Brazil
CityRio De Janeiro
Period09/10/509/10/7

ASJC Scopus subject areas

  • 人工知能
  • コンピュータ ネットワークおよび通信
  • 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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