H.264/AVC deblocking filter correlation analysis in embedded systems

Yunyang Dai, Qi Zhang, Qing Li, C. C.Jay Kuo

Research output: Journal article publicationConference articleAcademic researchpeer-review


The performance improvement of the in-loop deblocking filter module in the H.264/AVC video coding standard in embedded systems is studied in this research. A novel prediction scheme is presented in to reduce the complexity of the filter selection process and hence increase overall performance. We first examine the H.264/AVC deblocking filters by studying their correlation in terms of the filter type and pattern among a sequence of consecutive P frames and I frames. The experimental results show a high correlation of the filter skip rate and the filter pattern between different P frames and their leading I frame. Based on the correlation analysis, a binary history table predictor (the BHT predictor) and a complete history table predictor (the CHT predictor) are proposed to facilitate the deblocking filter selection process while maintaining good subjective and objective visual quality. We further present a hybrid filter prediction scheme that integrates both BHT and CHT to further improve prediction results.

Original languageEnglish
Article number17
Pages (from-to)124-131
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 21 Jul 2005
Externally publishedYes
EventProceedings of SPIE-IS and T Electronic Imaging - Embedded Processors for Multimedia and Communications II - San Jose, CA, United States
Duration: 17 Jan 200518 Jan 2005


  • Correlation
  • Deblocking filter
  • H.264/AVC
  • VLIW

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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