Mode decision acceleration for scalable video coding through coded block pattern

Chia Hung Yeh*, Wen Yu Tseng, Bo Yi Chou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a fast mode decision to accelerate the encoding process of scalable video coding (SVC) through coded block pattern (CBP) analysis. CBP contains residual information of each macroblock (MB) and provide cues for mode prediction in encoding process. The proposed algorithm makes use of the existing mode information in base layer (BL), enhancement layer (EL) and CBP to remove invalid modes for the mode prediction of the current MB in EL coding. Also, the EL's modes in the highest temporal level of a group of picture are determined by high correlation exists in adjacent frames. Experimental results show that the proposed algorithm saves an average of 68% of EL motion estimation time with minor degradation in PSNR and with few bitrate increase of SVC quality and spatial scalabilities when compared to JSVM 9.19.14. Our algorithm outperforms the best-known method by 17% EL motion estimation time saving in average.

Original languageEnglish
Pages (from-to)1167-1178
Number of pages12
JournalJournal of Visual Communication and Image Representation
Volume23
Issue number8
DOIs
Publication statusPublished - 2012 Nov
Externally publishedYes

Keywords

  • Coarse-gain
  • Coded block pattern
  • Fast mode decision
  • Highest temporal level analysis
  • Inter-layer prediction
  • Quality scalability
  • Scalable video coding
  • Spatial scalability

ASJC Scopus subject areas

  • Signal Processing
  • Media Technology
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

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