On piece wise-planar representation of images

N. Kiryati, A. M. Bruckstein

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

It is customary to represent an analog image in digital form by dividing its support to pixels, and within each pixel to represent the brightness by a quantized scalar, i.e., to approximate the 2-D image function by a horizontal planar patch. This paper studies a representation scheme in which the image function is represented within each pixel by an inclined planar patch. If the image function is to be represented by b bits per pixel, a bit allocation trade-off arises, and the optimal allocation of bits to the representation of the average value and of the two slope coefficients within each pixel needs to be determined. Analysis shows that allocating all the bits to represent the average brightness is not always optimal, and bits should be allocated to the representation of the slope coefficients. Similar results were obtained for the 1-D case.

Original languageEnglish
Title of host publicationIAPR 1992 - 11th IAPR International Conference on Pattern Recognition
Subtitle of host publicationImage, Speech, and Signal Analysis
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages451-454
Number of pages4
ISBN (Electronic)0818629207
DOIs
StatePublished - 1992
Externally publishedYes
Event11th IAPR International Conference on Pattern Recognition, IAPR 1992 - The Hague, Netherlands
Duration: 30 Aug 19923 Sep 1992

Publication series

NameProceedings - International Conference on Pattern Recognition
Volume3
ISSN (Print)1051-4651

Conference

Conference11th IAPR International Conference on Pattern Recognition, IAPR 1992
Country/TerritoryNetherlands
CityThe Hague
Period30/08/923/09/92

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