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Image coding with the MAP criterion

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Author

Summary, in English

BCJR based source coding of image residuals is investigated. From a trellis representation of the residual, a joint source-channel coding system is formed. Then the BCJR algorithm is applied to find the MAP encoding. MAP and minimized squared error encoding are compared. The novelty of this work is the use of the BCJR algorithm and the MAP criterion in the source coding procedure. The source encoding system described preserves more features than an MSE based encoder. Also, blocking artifacts are reduced.

Publishing year

2002

Language

English

Pages

453-453

Publication/Series

Proceedings, IEEE 2002 Data Compression Conference

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • minimized squared error encoding
  • decorrelation procedure
  • convolutional codes
  • MAP criterion
  • image coding
  • maximum a posteriori probability criterion
  • image residuals
  • source coding
  • trellis representation
  • joint source-channel coding
  • BCJR algorithm
  • Bahl-Cocke-Jelinek-Raviv algorithm

Conference name

Proceedings DCC 2002 Data Compression Conference

Conference date

2002-04-02 - 2002-04-04

Conference place

Snowbird, UT, United States

Status

Published

Project

  • Informations- och kommunikationsteori: Data- och bildkompression

Research group

  • Informations- och kommunikationsteori

ISBN/ISSN/Other

  • ISBN: 0-7695-1477-4