Flash scene video coding using weighted prediction

Sik Ho Tsang, Yui Lam Chan, Wan Chi Siu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

A novel algorithm for coding flash scenes is proposed. In principle, flash scenes can be detected by analyzing the histogram differences between frames. The proposed algorithm then suggests an adaptive coding order technique for increasing the efficiency of video coding by taking account of characteristics of flash scenes in video contents. The use of adaptive coding technique also benefits to enhance the accuracy of derived motion vectors for determination of weighting parameter sets. Experimental results show that a significant improvement of coding performance in terms of bitrate and PSNR can be achieved in comparison with the conventional weighted prediction algorithms.
Original languageEnglish
Pages (from-to)264-270
Number of pages7
JournalJournal of Visual Communication and Image Representation
Volume23
Issue number2
DOIs
Publication statusPublished - 1 Feb 2012

Keywords

  • Brightness variation
  • Flash scene
  • H.264
  • Histogram difference
  • Illumination change
  • Motion estimation
  • Scene change detection
  • Weighted prediction

ASJC Scopus subject areas

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

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