초록 ▼

A signal is encoding, in part, by generating the transform of the signal in a transform domain. The coefficients of the transformed signal are then ordered according to a statistical model of the transform. Decoding of the encoded signal generates progressively accurate approximations of the fully r

A signal is encoding, in part, by generating the transform of the signal in a transform domain. The coefficients of the transformed signal are then ordered according to a statistical model of the transform. Decoding of the encoded signal generates progressively accurate approximations of the fully reconstructed signal. If, for some reason, decoding is truncated, a useable partial result will nevertheless be available. In a preferred embodiment, natural image signals are encoded by ordering the coefficients of the transformed signal generated by applying a discrete cosine transform. Decoding of the encoded signals generates progressively accurate approximations of the fully reconstructed image. The invention has particular application to systems with limited and/or variable transmission, storage, and/or decode processing bandwidth.

대표청구항 ▼

[ What is claimed is:] [1.] A computer-implemented process for encoding image signals, comprising the steps of:(a) providing an original image signal corresponding to a particular type of image;(b) applying a transform to the original image signal to generate a transformed image signal, the transfor

[ What is claimed is:] [1.] A computer-implemented process for encoding image signals, comprising the steps of:(a) providing an original image signal corresponding to a particular type of image;(b) applying a transform to the original image signal to generate a transformed image signal, the transformed image signal comprising a plurality of transformed signal coefficients;(c) ordering the transformed signal coefficients in accordance with a statistical model generated empirically by applying the transform to one or more test images of the particular type; and(d) generating an encoded image signal in accordance with the ordered coefficients.