Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2011-07-19
2011-07-19
Wu, Xiao (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
Reexamination Certificate
active
07982743
ABSTRACT:
The present invention provides a method and apparatus for reading film grain patterns in a raster order in film grain simulation including establishing a pseudo-random starting position, repeating the pseudo-random starting position for each line of a group of film grain blocks, and using a different pseudo-random starting position for each display line of a next group of film grain blocks. In various embodiments of the present invention, the different pseudo-random starting positions are triggered by resetting at least one seed value of a pseudo-random number generator implemented to determine said pseudo-random starting positions.
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Cristina Gomila, “SEI Message for Film Grain Encoding: Syntax and Results”, Joint Video Team (JVT of ISO/IEC MPEG & ITU-T VCEG (ISO/IEC JTC1/SC29/WG11 and ITU-T SG16 Q.6), 7th Meeting: San Diego, California, USA, Sep. 2-5, 2003.
Campisi, P. et al., “Signal-Dependent Film Grain Noise Generation Using Homomorphic Adaptive Filtering”, IEE Proceedings: Vision, Image and Signal Processing, Institution of Electrical Engineers, GB, vol. 147, No. 3, Jun. 23, 2000, pp. 283-287.
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Cooper Jeffrey Allen
Gomila Cristina
Llach Joan
Levy Robert B.
Martello Edward
Shedd Robert D.
Thomson Licensing
Villabon Jorge Tony
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