Image analysis – Image compression or coding
Reexamination Certificate
2004-02-03
2009-08-25
Ahmed, Samir A. (Department: 2624)
Image analysis
Image compression or coding
C382S248000
Reexamination Certificate
active
07580578
ABSTRACT:
A compressed transcoded digital image signal is formed from a compressed original digital image signal having digital data organized in blocks. A data block in one of the compressed signals between the compressed transcoded digital image signal and the compressed original digital image signal is selected by identifying the spatial position of the data block in one of the compressed signals. The spatial position of a dual data block corresponding to the selected data block is identified in the non selected compressed signal, having regard to a given geometric transformation applied to this block. The data block belonging to the compressed original signal is decoded and the given geometric transformation is applied to the selected, decoded data block. The geometrically transformed data block is coded and the first, coded data block is inserted in the compressed transcoded image signal at the position of its dual block.
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Grosbois Raphaël
Le Leannec Fabrice
Onno Patrice
Ahmed Samir A.
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Rashidian Mehdi
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