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

Wan Fung Cheung; Yuk Hee Chan

doi:10.1109/ICME.2002.1035404

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

Wan Fung Cheung, Yuk Hee Chan

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-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 language	English
Title of host publication	Proceedings - 2002 IEEE International Conference on Multimedia and Expo, ICME 2002
Publisher	IEEE
Pages	69-72
Number of pages	4
Volume	2
ISBN (Electronic)	0780373049
DOIs	https://doi.org/10.1109/ICME.2002.1035404
Publication status	Published - 1 Jan 2002
Event	2002 IEEE International Conference on Multimedia and Expo, ICME 2002 - Lausanne, Switzerland Duration: 26 Aug 2002 → 29 Aug 2002

Conference

Conference	2002 IEEE International Conference on Multimedia and Expo, ICME 2002
Country/Territory	Switzerland
City	Lausanne
Period	26/08/02 → 29/08/02

ASJC Scopus subject areas

Archaeology
Electrical and Electronic Engineering

More information

10.1109/ICME.2002.1035404

http://hdl.handle.net/10397/1543

Cite this

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title = "Colour quantization of compressed video sequences based on the estimation of cumulative colour histogram",

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.",

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Cheung, WF & Chan, YH 2002, Colour quantization of compressed video sequences based on the estimation of cumulative colour histogram. in Proceedings - 2002 IEEE International Conference on Multimedia and Expo, ICME 2002. vol. 2, 1035404, IEEE, pp. 69-72, 2002 IEEE International Conference on Multimedia and Expo, ICME 2002, Lausanne, Switzerland, 26/08/02. https://doi.org/10.1109/ICME.2002.1035404

Colour quantization of compressed video sequences based on the estimation of cumulative colour histogram. / Cheung, Wan Fung; Chan, Yuk Hee.
Proceedings - 2002 IEEE International Conference on Multimedia and Expo, ICME 2002. Vol. 2 IEEE, 2002. p. 69-72 1035404.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AB - 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.

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

Abstract

Conference

ASJC Scopus subject areas

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