H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/64 (2006.01) G06T 9/00 (2006.01) H04N 7/46 (2006.01) H04N 7/68 (2006.01) H04N 5/21 (2006.01)
Patent
CA 2308223
A method and apparatus for generating blocks of data for an image is described. An image is divided into a localized area 560. For each localized area, pixels are assigned to blocks 565 following a complementary pattern. The complementary pattern is designed such that most pixels are adjacent to pixels arising from other blocks. The neighboring pixels provide information that is useful for reconstructing data that is lost due to burst error. In one embodiment, this is used in the transmission of video signals over a potentially lossy communications channel.
La présente invention concerne un appareil et procédé permettant de générer des blocs de données pour une image. Une image est divisée dans une zone localisée (560). Pour chaque zone localisée, des pixels sont attribués à des blocs (565) suivant un motif complémentaire. Ce motif complémentaire est conçu de manière à ce que la plupart des pixels jouxtent les autres pixels inhérents à d'autres blocs. Les pixels adjacents fournissent des informations utiles pour la reconstruction des données perdues à cause d'une erreur rafale. Dans un des modes de réalisation, cette invention est utilisée dans la transmission des signaux vidéo via un canal de communication potentiellement fuyard.
Carrig James J.
Fujimori Yasuhiro
Ghosal Sugata
Kondo Tetsujiro
Gowling Lafleur Henderson Llp
Sony Electronics Inc.
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