An improved video rate control for video coding standards

Details An improved video rate control for video coding standards An improved video rate control for video coding standards

H - Electricity

04

N

H04N 7/26 (2006.01) H04N 7/50 (2006.01)

Patent

CA 2672339

A method and device for improving rate controlling in video coding of sequences including a series of Inter frames separated by Intra frames, when a decoding delay is considered, comprise for each Inter frame of the series: computing a target frame size, computing a maximum buffer level related to a position of each Inter frame relative to a previous Intra frame and an upcoming Intra frame, and optimizing a transmission buffer level in response to the computed target frame size and the computed maximum buffer level.

Un procédé et un dispositif pour améliorer la commande de débit dans le codage vidéo de séquences incluant une suite d'inter-images séparées par des intre-images, lorsqu'un retard de décodage est considéré, comprend pour chaque inter-image de la suite : le calcul d'une dimension d'image cible, le calcul d'un niveau tampon maximal relatif à une position de chaque inter-image par rapport à une intra-image précédente et à une intra-image suivante, et l'optimisation d'un niveau tampon de transmission en réponse à la dimension d'image cible calculée et au niveau tampon maximal calculé.

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