Colour quantization of compressed video sequences based on the estimation of cumulative colour histogram

Wan Fung Cheung, Yuk Hee Chan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

This paper presents a novel colour quantization algorithm for compressed video data. The proposed algorithm extracts DC coefficients and motion vectors of blocks in a shot to estimate a cumulative colour histogram of the shot and, based on the estimated histogram, design a colour palette for displaying the video sequence in the shot. It significantly reduces the complexity of the generation of a palette by effectively reducing the number of training vectors used in training a palette without sacrificing the quality. The palette obtained can provide a good display quality even if zooming and panning exist in a shot. The experimental results show that the proposed method can achieve a significant SNR improvement as compared with conventional video colour quantization schemes when zooming and panning are encountered in a shot.
Original languageEnglish
Title of host publicationProceedings - 2002 IEEE International Conference on Multimedia and Expo, ICME 2002
PublisherIEEE
Pages69-72
Number of pages4
Volume2
ISBN (Electronic)0780373049
DOIs
Publication statusPublished - 1 Jan 2002
Event2002 IEEE International Conference on Multimedia and Expo, ICME 2002 - Lausanne, Switzerland
Duration: 26 Aug 200229 Aug 2002

Conference

Conference2002 IEEE International Conference on Multimedia and Expo, ICME 2002
CountrySwitzerland
CityLausanne
Period26/08/0229/08/02

ASJC Scopus subject areas

  • Archaeology
  • Electrical and Electronic Engineering

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