System and method for processing object-based audiovisual...

H - Electricity – 04 – N

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H04N 5/91 (2006.01) G06F 17/30 (2006.01) G11B 23/00 (2006.01) G11B 27/034 (2006.01) G11B 27/28 (2006.01) H04N 7/24 (2006.01)

Patent

CA 2257578

The invention provides a system and method for processing object-based audiovisual information which is capable of flexibly encoding, storing and accessing a variety of data objects. Audiovisual objects, illustratively prepared in MPEG-4 format, are stored onto physical media using file consisting of segments and access layer primary data units (PDUs), which are accessed using index information. The processes of encoding, storing and accessing audiovisual information are decoupled from monolithic storage in a strict linear order, and reordering and other editorial manipulations are possible.

La présente invention concerne un système et un procédé de traitement d'informations audiovisuelles orienté objets, ce procédé permettant de coder, d'enregistrer et d'accéder, de manière flexible, à une variété d'objets de données. Les objets audiovisuels, préparés, dans les exemples joints à la demande, en format MPEG-4, sont enregistrés sur des supports physiques au moyen de fichiers constitués de segments et de PDU (unités de données primaires) de la couche d'accès auxquelles on accède par indexage. Les procédés de codage, de stockage et d'accès à des informations audiovisuelles sont découplés de la mémoire monolithique dans un ordre linéaire stricte, le reséquencement et autres manipulations d'édition étant alors possibles.

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