Patent ID: 6757437
Filing Date: 2004-06-29
Classification: G06F,H03M,H04N

Abstract:
An encoder, comprising:a multi-component handling mechanism to process a plurality of pixels, wherein each pixel includes a plurality of components, wherein each component of the plurality of components is coded separately; a high pass and low pass filter pair coupled to the multi-component handling mechanism to perform a reversible wavelet transform to produce a series of coefficients in response to the plurality of pixels, the series of coefficients being groups of coefficients, where each group of coefficients corresponds to one of the plurality of components for the plurality of pixels, wherein the reversible wavelet transform is implemented in integer arithmetic such that a signal with integer coefficients is losslessly recoverable; and at least one coder coupled to the reversible wavelet transform filter pair and responsive to the series of coefficients to generate entropy coded data.