Adaptive entropy-coded 2-D DPCM encoding of images

J. W. Modestino, D. D. Harrison

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The authors describe the theory and performance of a particular adaptive entropy-coded quantization (AECQ) scheme used in conjunction with 2-D DPCM (differential pulse code modulation) and operating on real-world image sources. The resulting system, called 2-D DPCM/AECQ, is described in detail and its performance illustrated on a typical real-world image. The system makes use of an adaptive buffer-control strategy to modify the DPCM quantizer characteristics on the basis of the buffer occupancy state. This adaptive buffer-state feedback is used to control the average rate of the variable-length entropy-coded quantizer code words at the input to the buffer, to allow interfacing to a fixed-rate transmission or storage channel. Image coding results demonstrate, both objectively and subjectively, that achievable performance is close to that predicted on the basis of rate-distortion considerations even for reasonably small buffer sizes.

Original languageEnglish (US)
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Editors Anon
PublisherPubl by IEEE
Pages1973-1975
Number of pages3
Volume3
StatePublished - 1989
Event1989 International Conference on Acoustics, Speech, and Signal Processing - Glasgow, Scotland
Duration: May 23 1989May 26 1989

Other

Other1989 International Conference on Acoustics, Speech, and Signal Processing
CityGlasgow, Scotland
Period5/23/895/26/89

Fingerprint

differential pulse code modulation
Differential pulse code modulation
coding
Entropy
buffers
entropy
Image coding
State feedback
counters

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics

Cite this

Modestino, J. W., & Harrison, D. D. (1989). Adaptive entropy-coded 2-D DPCM encoding of images. In Anon (Ed.), ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 3, pp. 1973-1975). Publ by IEEE.

Adaptive entropy-coded 2-D DPCM encoding of images. / Modestino, J. W.; Harrison, D. D.

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. ed. / Anon. Vol. 3 Publ by IEEE, 1989. p. 1973-1975.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Modestino, JW & Harrison, DD 1989, Adaptive entropy-coded 2-D DPCM encoding of images. in Anon (ed.), ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. vol. 3, Publ by IEEE, pp. 1973-1975, 1989 International Conference on Acoustics, Speech, and Signal Processing, Glasgow, Scotland, 5/23/89.
Modestino JW, Harrison DD. Adaptive entropy-coded 2-D DPCM encoding of images. In Anon, editor, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 3. Publ by IEEE. 1989. p. 1973-1975
Modestino, J. W. ; Harrison, D. D. / Adaptive entropy-coded 2-D DPCM encoding of images. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. editor / Anon. Vol. 3 Publ by IEEE, 1989. pp. 1973-1975
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