Joint amplitude and position coding of coefficients for...

Image analysis – Image compression or coding

Reexamination Certificate

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C382S245000, C382S246000, C341S167000, C341S065000, C341S050000, C341S051000

Reexamination Certificate

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08036471

ABSTRACT:
A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes jointly encoding joint events that each are defined by a cluster of consecutive non-zero-valued coefficients, each joint event defined by three parameters: the number of zero-valued coefficients preceding the cluster, the number of non-zero-valued coefficients in the cluster, and an indication of which trailing coefficients up to a maximum number of M trailing coefficients have amplitude greater than 1, with the coding using a 3-dimensional joint VLC table. The method further includes encoding the amplitude of the non-zero-valued trailing coefficients that have amplitude greater than 1 encoding the amplitude of any remaining non-zero-valued coefficients in the clusters that have more than M non-zero-valued coefficients.

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D. Tian, P.S. Chang, and W.H. Chen. “Hybrid Variable Length Coding in Video Compression using Variable Breakpoint,” IEEE International Conference on Image Processing, ICIP 2007. IEEE, PI, Sep. 2007, vol. 3, pp. III-413-III-416.
PCT International Search Report for PCT Application No. PCT/US2008/078356.

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