EDGE-PRESERVING IMAGE CODING BASED ON LOCAL MODELING OF IMAGES.

Yao Wang, Sanjit K. Mitra

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

Abstract

A coding scheme which encodes each contiguous block of an image based on its local structure is developed. Three different types of models are constructed to characterize the image patterns occurring most frequently in a small block. The average bit rate is reduced by making use of the special constraint among the pixels in an oriented model, where the intensity variation is along only one direction. Judging from the image quality around edges, the reconstructed images with a bit rate less than 0. 68 bit/pixel are perceptually superior to those obtained by the block and truncation coding at a bit rate of 1. 64 bits/pixel. The complexity of this algorithm increases linearly with the size of the block and the number of orientations considered, which is much lower than that of the standard vector quantization techniques.

Original languageEnglish (US)
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
PublisherIEEE
Pages1320-1323
Number of pages4
StatePublished - 1988

Fingerprint

Image coding
preserving
coding
Pixels
pixels
vector quantization
Vector quantization
Image quality
approximation

ASJC Scopus subject areas

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

Cite this

Wang, Y., & Mitra, S. K. (1988). EDGE-PRESERVING IMAGE CODING BASED ON LOCAL MODELING OF IMAGES. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp. 1320-1323). IEEE.

EDGE-PRESERVING IMAGE CODING BASED ON LOCAL MODELING OF IMAGES. / Wang, Yao; Mitra, Sanjit K.

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE, 1988. p. 1320-1323.

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

Wang, Y & Mitra, SK 1988, EDGE-PRESERVING IMAGE CODING BASED ON LOCAL MODELING OF IMAGES. in ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE, pp. 1320-1323.
Wang Y, Mitra SK. EDGE-PRESERVING IMAGE CODING BASED ON LOCAL MODELING OF IMAGES. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE. 1988. p. 1320-1323
Wang, Yao ; Mitra, Sanjit K. / EDGE-PRESERVING IMAGE CODING BASED ON LOCAL MODELING OF IMAGES. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE, 1988. pp. 1320-1323
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