Compression and decompression system with reversible wavelets and lossy reconstruction
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Abstract
A method and apparatus for encoding and decoding data that includes generating transformed signals in response to input data. In one embodiment, the transformed signals are generated using a reversible wavelet transform. The present invention also includes a method and apparatus for compressing the transform signals into data representing a losslessly compressed version of the input data. In one embodiment, the present invention decomposes the input data using reversible wavelet transforms.
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Citations
76 Claims
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70. A method for performing a reconstruction comprising the steps of:
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generating a reconstruction value; and
clipping the reconstruction value if the reconstruction value exceeds the bounds of neighboring coefficients, where the reconstruction value is clipped to a coefficient value within the bounds of the neighboring coefficients of a neighboring coefficient with a value closest to the reconstruction value. - View Dependent Claims (71, 72, 73, 74, 75)
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Specification