Method and apparatus for modeling film grain patterns in the...

Details Method and apparatus for modeling film grain patterns in the... Method and apparatus for modeling film grain patterns in the...

G - Physics

06

T

G06T 5/10 (2006.01)

Patent

CA 2537000

Film grain patterns can be modeled in the frequency domain by estimating the cut frequencies that define a 2D band-pass filter. The film grain parameters can be conveyed in accordance with the ITU-T H.264 | MPEG-4 AVC standard in an SEI message allowing film grain reinsertion at a decoder.

Il est possible de modéliser des motifs de grains de films dans le domaine fréquentiel en évaluant les fréquences de coupure qui définissent un filtre passe-bande 2D. Les paramètres d'un grain de film peuvent être transportés, conformément à la norme ITU-T H.264 | MPEG-4 AVC, dans un message SEI permettant une réintroduction du grain de film au niveau d'un décodeur.

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