COMBINED SOURCE-CHANNEL CODING OF IMAGES.

James W. Modestino, David G. Daut

Research output: Contribution to journalArticle

100 Citations (Scopus)

Abstract

A combined source-channel coding approach is described for the encoding, transmission and remote reconstruction of image data. The source encoder employs two-dimensional (2-D) differential pulse code modulation (DPCM). This is a relatively efficient encoding scheme in the absence of channel errors. In the presence of channel errors, however, the performance degrades rapidly. By providing error control protection to those encoded bits which contribute most significantly to image reconstruction, it is possible to minimize this degradation without sacrificing transmission bandwidth. The result is a relatively robust design which is reasonably insensitive to channel errors and yet provides performance approaching the rate-disortion bound. Analytical results are provided for assumed 2-D autoregressive image models while simulation results are described for real-world images.

Original languageEnglish
Pages (from-to)1644-1659
Number of pages16
JournalIEEE transactions on communications systems
VolumeCOM-27
Issue number11
StatePublished - Nov 1 1979

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Channel coding
Differential pulse code modulation
Image reconstruction
Bandwidth
Degradation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Modestino, J. W., & Daut, D. G. (1979). COMBINED SOURCE-CHANNEL CODING OF IMAGES. IEEE transactions on communications systems, COM-27(11), 1644-1659.

COMBINED SOURCE-CHANNEL CODING OF IMAGES. / Modestino, James W.; Daut, David G.

In: IEEE transactions on communications systems, Vol. COM-27, No. 11, 01.11.1979, p. 1644-1659.

Research output: Contribution to journalArticle

Modestino, JW & Daut, DG 1979, 'COMBINED SOURCE-CHANNEL CODING OF IMAGES.', IEEE transactions on communications systems, vol. COM-27, no. 11, pp. 1644-1659.
Modestino JW, Daut DG. COMBINED SOURCE-CHANNEL CODING OF IMAGES. IEEE transactions on communications systems. 1979 Nov 1;COM-27(11):1644-1659.
Modestino, James W. ; Daut, David G. / COMBINED SOURCE-CHANNEL CODING OF IMAGES. In: IEEE transactions on communications systems. 1979 ; Vol. COM-27, No. 11. pp. 1644-1659.
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