SYSTEM AND METHOD FOR BIT-PLANE DECODING OF FINE-GRANULARITY SCALABLE (FGS) VIDEO STREAM

摘要

A method of inverse transform of bit-plane-oriented discrete cosine transform transformed data representing the enhancement layer of a frame of video date encopoded in a fine granularscability comprising: providing a lookup table comprissing a mtrix of numerical contributions based on location of a bit-plane cell within any bit-plane of a bit-plane set, the numerical contributions independent of bit-plane order; selecting the numerical contribution from the lookup table for each bit-plane cell having a discrete cosine transform coefficient od 1 in each bit-plane; and shifting a binary representation of each selected numerical contribution by number of bit-positions equal to a bit-plane number of the bit-plane of which a particular bit-plane cell is a menber.