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Abstract

A method and device decode compressed images, and in particular, images compressed according to the MPEG standards, and especially bidirectional images. The time period during which the memory is accessed by the decoder is minimized by extracting a predictor macroblock of a size greater than or equal to that of the macroblocks of the image stored in memory, from the memory. This extraction comprises accessing pages of the memory so as to simultaneously open with each page access, two pages situated respectively in two memory banks and respectively containing two macroblocks belonging respectively to two consecutive rows of macroblocks and to the same column of macroblocks of the stored image. A columnwise reading of some of the pixels of the two macroblocks accessed during the page access is then performed, so as to obtain some of the corresponding pixels of the predictor macroblock.

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