METHOD AND SYSTEM FOR COMPRESSING A VIDEO SIGNAL USING A HYBRID POLYNOMIAL COEFFICIENT SIGNAL

摘要

A video signal (305) is converted into compressed frame signals (360), each comprising a coefficient signal of block coefficient signals for each frame in a video image. Each of the block coefficient signals represents the pixels in a pixel map block (420) with the coefficients in a hybrid polynomial (325). The hybrid polynomial contains discrete cosine terms, and polynomial terms extracted from the discrete cosine terms. Each block coefficient signal (315) contains background component representing a coefficient of the constant term, a linear component representing the coefficients (345) of the polynomial terms, and a nonlinear component representing the coefficients of the discrete cosine terms.