Flash scene video coding using weighted prediction

Sik Ho Tsang; Yui Lam Chan; Wan Chi Siu

doi:10.1016/j.jvcir.2011.11.004

Flash scene video coding using weighted prediction

Sik Ho Tsang, Yui Lam Chan, Wan Chi Siu

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-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 language	English
Pages (from-to)	264-270
Number of pages	7
Journal	Journal of Visual Communication and Image Representation
Volume	23
Issue number	2
DOIs	https://doi.org/10.1016/j.jvcir.2011.11.004
Publication status	Published - 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

More information

10.1016/j.jvcir.2011.11.004

Cite this

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title = "Flash scene video coding using weighted prediction",

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.",

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AB - 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.

KW - Brightness variation

KW - Flash scene

KW - H.264

KW - Histogram difference

KW - Illumination change

KW - Motion estimation

KW - Scene change detection

KW - Weighted prediction

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EP - 270

JO - Journal of Visual Communication and Image Representation

JF - Journal of Visual Communication and Image Representation

IS - 2

ER -

Flash scene video coding using weighted prediction

Abstract

Keywords

ASJC Scopus subject areas

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