Methods for decoding and encoding current images, invariant media read by computers, and data transmission methods

Abstract

The invention relates to a method for decoding a current image comprising the following steps: acquiring a bit stream containing the current image; reverse-engineering the encoded block in the current image to obtain one or more subblocks; obtaining the inverse quantization coefficients of the first subblock; reconstructing the residual signal of the first subblock; reconstructing the encoded block; By performing inverse quantization on the first subblock, the Invention also relates to a method of encoding the current image comprising the following steps: dividing the encoded block in the current image to obtain one or more subblocks; obtaining the transformation coefficients of the first subblock; obtaining the quantization transformation coefficients of the first subblock; and generating a bit stream by encoding the quantization transformation coefficients of the first subblock. Additionally, the term "image signal" refers to a computer-readable, immutable medium used to store data associated with image signals, and a method of transmitting data associated with image signals.