Rate control algorithm based on intra-picture complexity for H.264/AVC

Gwo-Giun Lee, H. Y. Lin, M. J. Wang

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


An efficient rate control algorithm based on the content-adaptive initial quantisation parameter (QP) setting scheme and the peak signal-to-noise ratio (PSNR) variation-limited bit-allocation strategy for low-complexity mobile applications is presented. This algorithm can efficiently measure the residual complexity of intra-pictures without performing the computation-intensive intra-prediction and mode decision in H.264/AVC, based on the structural and statistical features of local textures. This can adaptively set proper initial QP values for versatile video contents. In addition, this bit-allocation strategy can effectively distribute bit-rate budgets based on the monotonic property to enhance overall coding efficiency while maintaining the consistency of visual quality by limiting the variation of quantisation distortion. The experimental results reveal that the proposed algorithm surpasses the conventional rate control approaches in terms of the average PSNR from 0.34 to 0.95dB. Moreover, this algorithm provides more impressive visual quality and more robust buffer controllability when compared with other algorithms.

Original languageEnglish
Pages (from-to)26-39
Number of pages14
JournalIET Image Processing
Issue number1
Publication statusPublished - 2009 Feb 9

All Science Journal Classification (ASJC) codes

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering


Dive into the research topics of 'Rate control algorithm based on intra-picture complexity for H.264/AVC'. Together they form a unique fingerprint.

Cite this