Image analysis – Image compression or coding
Reexamination Certificate
2008-02-13
2011-10-18
Le, Brian Q (Department: 2624)
Image analysis
Image compression or coding
C382S245000, C382S246000, C341S167000, C341S065000, C341S050000, C341S051000
Reexamination Certificate
active
08041131
ABSTRACT:
A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes encoding cluster of consecutive non-zero-valued coefficients, the encoding of a cluster including jointly encoding joint events that each are defined by at least two parameters: the number of zero-valued coefficients preceding the cluster, and the number of non-zero-valued coefficients in the cluster. The encoding of the cluster also includes encoding a parameter indicative of the number of amplitude-1 trailing non-zero-valued coefficients in the cluster, in one version with the parameter indicative of the number of trailing amplitude-1 coefficients part of the joint events such that the coding is according to a 3-dimensional joint variable length coding table. The method further includes encoding the amplitudes of the non-zero-valued coefficients that are not encoded by the joint encoding, e.g., encoding the amplitudes of the other than the trailing amplitude-1 coefficients.
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PCT Search Report for PCT Application No. PCT/US2008/078359 mailed on Mar. 19, 2009.
AlRegib Ghassan
Chang Pi Sheng
Chen Wen-hsiung
Li Junlin
Tian Dihong
Bekele Mek
Cisco Technology Inc.
INVENTEK
Le Brian Q
Rosenfeld Dov
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