Method for deriving motion for high resolution pictures from motion data of low resolution pictures and coding and decoding devices implementing said method

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United States of America Patent

PATENT NO 9167266
APP PUB NO 20090323811A1
SERIAL NO

12309159

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Abstract

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The invention relates to a method for deriving motion data for a macroblock divided in elementary blocks of a high resolution picture, called high layer macroblock, from motion data of macroblocks of a low resolution picture, called base layer macroblock. The method comprises the following steps:

    computing, for each elementary block, an intermediate position within the low resolution picture from the elementary block position depending on the coding modes of the high layer macroblock and of the high and low resolution pictures;identifying the base layer macroblock, called base_MB, comprising the pixel located at the intermediate position;computing a final position within the low resolution picture from the virtual base layer position depending on the coding modes of the base_MB, of the high layer macroblock;identifying the base layer macroblock, called real_base_MB, comprising the pixel located at the final position; andderiving motion data, for the high layer macroblock, from motion data of the identified real_base_MB.

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Patent Owner(s)

  • THOMSON LICENSING

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bottreau, Vincent Chateaubourg, FR 22 506
Chevance, Christophe Brécé, FR 29 238
Francois, Edouard Bourg des Comptes, FR 183 1712
Vieron, Jéróme Bédée, FR 1 1

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