Transform-coding image compression for information efficiency and restoration

Stephen E. Reichenbach, Zia Ur Rahman, Ramkumar Narayanswamy

Research output: Contribution to journalArticle

Abstract

In this paper, we develop an image compression algorithm based on an information-theoretic analysis of transform coding in the end-to-end imaging process. Our analysis accounts for the radiance-field statistics, the image-gathering system design, and transform coding and compression in determining the information density of the transmitted image. This approach allows the specification of imaging systems that implement transform-coding image compression at arbitrary bit rates with maximum information density. Ultimately, the fidelity of an optimally restored image is limited by the information capacity of the imaging system. Our results indicate that with informationally optimized transform coding, even images compressed to low bit rates can be restored with relatively high fidelity.

Original languageEnglish (US)
Pages (from-to)215-224
Number of pages10
JournalJournal of Visual Communication and Image Representation
Volume4
Issue number3
DOIs
Publication statusPublished - Sep 1993

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ASJC Scopus subject areas

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

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