METHODS AND DEVICES FOR ENCODING AND DECODING AT LEAST ONE IMAGE IMPLEMENTING AN ESTIMATION IN THE TRANSFORM DOMAIN, AND CORRESPONDING SIGNAL AND COMPUTER PROGRAM - CentraleSupélec Access content directly
Patents Year : 2012

METHODS AND DEVICES FOR ENCODING AND DECODING AT LEAST ONE IMAGE IMPLEMENTING AN ESTIMATION IN THE TRANSFORM DOMAIN, AND CORRESPONDING SIGNAL AND COMPUTER PROGRAM

Abstract

he invention relates to a method for encoding at least one image broken up into blocks, implementing, for at least one current block, a step of transforming (11) said current block from the spatial domain into a transformed domain, outputting a transformed block consisting of a set of coefficients representative of said current block, referred to as original coefficients. According to the invention, such a method implements a step of selecting (12) a subset of original coefficients from said set and, for at least one original coefficient of said subset, the following steps: estimating (13) said original coefficient, outputting an estimated coefficient in said transformed domain; determining (14) a residual of a coefficient by comparing said original coefficient and said estimated coefficient; and encoding (15) said residual of a coefficient.
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Dates and versions

hal-00773009 , version 1 (11-01-2013)

Identifiers

  • HAL Id : hal-00773009 , version 1

Cite

Isabelle Amonou, Patrice Brault, Pierre Duhamel, Matthieu Moinard. METHODS AND DEVICES FOR ENCODING AND DECODING AT LEAST ONE IMAGE IMPLEMENTING AN ESTIMATION IN THE TRANSFORM DOMAIN, AND CORRESPONDING SIGNAL AND COMPUTER PROGRAM. France, Patent n° : WO2012001257. 2012. ⟨hal-00773009⟩
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