Image analysis – Image compression or coding – Shape – icon – or feature-based compression
Reexamination Certificate
2005-06-21
2005-06-21
Do, Anh Hong (Department: 2624)
Image analysis
Image compression or coding
Shape, icon, or feature-based compression
C382S232000, C382S236000, C382S239000, C382S240000
Reexamination Certificate
active
06909810
ABSTRACT:
MPEG-4 encoded data is input, and a shape code decoder decodes shape data contained in the encoded image data to obtain ROI information contained in that image. The frequency transforms of the decoded image data are computed to generate transform coefficients. A bit shift unit bit-shifts transform coefficients, corresponding to the ROI, of the generated transform coefficients, to upper bit planes, stuffs “0”s in blank fields outside the ROI, which are generated by the bit shift process, and stuffs audio data from an audio buffer in blank fields within the ROI, which are generated by the bit shift process.
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Canon Kabushiki Kaisha
Do Anh Hong
Fitzpatrick ,Cella, Harper & Scinto
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