Encoding method and system, and decoding method and system

Details Encoding method and system, and decoding method and system Encoding method and system, and decoding method and system

H - Electricity

04

N

H04N 1/411 (2006.01) G06T 9/00 (2006.01) H03M 7/30 (2006.01) H03M 7/48 (2006.01) H04N 1/41 (2006.01)

Patent

CA 2197329

Image data which is to be compressed (to-be-compressed image data) is encoded repeatedly using a respective one of a plurality of templates. The compression rates of encoded data of each template are compared with each other. The encoded data with the highest compression rate is used and the corresponding template identification is output with the encoded data. The encoding comprises entropy coding. To-be-compressed data comprises video game software programs.

En S2, les données de l'image à comprimer sont codées et comprimées chaque fois au moyen d'un gabarit différent d'une série de gabarits. En S4, les taux de compression des données codées sont comparés entre eux, lesdites données codées ayant été codées en S2 chaque fois avec un gabarit différent de la série de gabarits. En S6, les données codées présentant le taux de compression le plus élevé et les informations d'identification du gabarit utilisé pour obtenir en S2 le taux de compression le plus élevé obtenu sont délivrées. Le codage est du type enthropique. Les données à comprimer correspondent à des logiciels de jeux vidéo.

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