Complexity reduction algorithm for region-of-interest based H.264 encoding

Tianruo Zhang, Minghui Wang, Chen Liu, Satoshi Goto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a computation complexity reduction algorithm for region-of-interest (ROI) based H.264 encoding. Smaller partition is preferred in both higher visual quality and ROI situation so that inter mode selection is applied according to the ROI based quality difference. An unequal coding efficiency degradation scheme is proposed according to the unequal bits allocation in ROI based video coding. Our ROI detection algorithm can detect accurate ROI boundary and an ROI boundary enhancement scheme is applied to further reduce the computation complexity in ROI. Experimental results show that 76.09% simulation time can be saved. Bit rate increases for only 1.07% while PSNR decreases for 0.05dB.

Original languageEnglish
Title of host publicationIEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS
Pages336-339
Number of pages4
DOIs
Publication statusPublished - 2010
Event2010 Asia Pacific Conference on Circuit and System, APCCAS 2010 - Kuala Lumpur
Duration: 2010 Dec 62010 Dec 9

Other

Other2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
CityKuala Lumpur
Period10/12/610/12/9

Keywords

  • Complexity reduction
  • H.264
  • region-of-interest

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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