Facsimile and static presentation processing – Facsimile – Reduced time or bandwidth for static image communication
Reexamination Certificate
2005-03-08
2005-03-08
Wallerson, Mark (Department: 2626)
Facsimile and static presentation processing
Facsimile
Reduced time or bandwidth for static image communication
C382S238000, C382S239000, C382S240000, C382S251000, C382S253000
Reexamination Certificate
active
06864997
ABSTRACT:
A picture encoding apparatus and the method in which the quantization step width of the lower hierarchy data having a resolution higher than that of the upper hierarchy data is determined for each predetermined block of respective hierarchy data based on the quantization step width determined by the upper hierarchy data having a low resolution, so that the additional code indicating the characteristics of quantizer can be omitted thereby the compression efficiency can be improved and the deterioration of picture quality can be reduced when picture data is hierarchical-encoded.
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Fujimori Yasuhiro
Kawaguchi Kunio
Kondo Tetsujiro
Frommer Williams S.
Frommer & Lawrence & Haug LLP
Smid Dennis M.
Sony Corporation
Wallerson Mark
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