Film grain sei message insertion for bit-accurate simulation...

H - Electricity – 04 – N

Patent

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H04N 7/26 (2006.01)

Patent

CA 2587118

There are provided methods and apparatus for film grain SEI message insertion for bit-accurate simulation in a video system. A method for simulating film grain in an ordered sequence includes the steps of providing (305) film grain supplemental information corresponding to a plurality of intra coded pictures, and providing (310) additional film grain supplemental information corresponding to inter coded pictures between consecutive intra coded pictures, in decode order. The inter coded pictures are selected based upon display order.

L'invention concerne des procédés et un appareil permettant d'assurer une insertion de message SEI (information d'amélioration complémentaire) de grain de film pour une simulation précise au bit dans un système vidéo. L'invention concerne un procédé permettant de simuler un grain de film dans une séquence ordonnée qui comprend les étapes consistant : (305) à fournir des informations d'amélioration complémentaires à une pluralité d'images I ; et (310) à fournir des informations d'amélioration complémentaires correspondant à des images I entre des images I consécutives, dans un ordre de décodage. Les images I sont sélectionnées en fonction de l'ordre d'affichage.

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