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Title: Image coding through progressive resolution transforms
Authors: Rovaris, E. 
Candela, S.
Jezieniecki, R.
UNESCO Clasification: 3307 Tecnología electrónica
Keywords: digital data
nonor-thogonal transform
radiographic images
Issue Date: 1992
Publisher: 0196-9722
Journal: Cybernetics and Systems 
Abstract: Visual information must be represented digitally to allow its processing by computer. This representation by means of a finite amount of digital data conveys an enormous amount of superfluous information that can be eliminated. We can consider two kinds of superfluous information: statistical redundant and subjective redundant. Discrete transform coding takes blocks of pixels and transforms them into another domain, the transform domain, prior to coding and transmission. An important property is that coefficients need not to be transmitted all in order to obtain good-quality reconstructions. We have applied a special nonorthogonal transform in order to compress radiographic images.
ISSN: 0196-9722
DOI: 10.1080/01969729208927464
Source: Cybernetics and Systems[ISSN 0196-9722],v. 23, p. 313-326
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