Frame complexity-based rate-quantization model for H.264/AVC intraframe rate control

Xuan Jing, Lap Pui Chau, Wan Chi Siu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

74 Citations (Scopus)


In this letter, we present an adaptive intraframe rate-quantization (R-Q) model for H.264/AVC video coding. The proposed method aims at selecting accurate quantization parameters (QP) for intra-coded frames according to the target bit rate. By taking gradient-based frame complexity measure into consideration, the model parameters can be adaptively updated. Experimental results show that when employing our proposed R-Q model, the intraframe target bits mismatch ratio can be reduced by up to 75% as compared to the traditional Cauchy-density-based model. Hence, this is extremely useful for H.264/AVC rate control applications.

Original languageEnglish
Pages (from-to)373-376
Number of pages4
JournalIEEE Signal Processing Letters
Publication statusPublished - Mar 2008


  • Frame complexity
  • H.264/AVC
  • Rate control
  • Rate-quantization

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Applied Mathematics


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