Overlapped reversible transforms for unified lossless/lossy comp

Image analysis – Image compression or coding – Transform coding

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382240, 382232, G06K 936, G06K 946

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059996560

ABSTRACT:
Recently, a number of reversible wavelet transforms have been identified which allow for exact reconstruction in integer arithmetic. Different transforms vary in how rounding is performed. The present invention provides a transform, which is linear except for the rounding with non-linear operations in order to create a reversible implementation. Also, the present invention also provides transforms which are decomposed into all finite inpulse response parts.

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