Apparatus and method for video encoding using signal separation algorithm based on independent component analysis and apparatus and method for video decoding using the same

摘要

An apparatus and a method for video encoding, using a signal separation algorithm based on independent component analysis are provided to improve an existing video coding scheme having a limitation in video compression efficiency for each macro block. A centering unit regulates data average of a residual image of a macro block delivered from a DCT transformer unit. A copy/conversion unit copies and transforms the residual image of the macro block adjusted in the centering unit to create a residual image having the same dimension as the dimension of the image before an encoding operation. An image separation unit separates a macro block data approximating to original data from the residual image having the macro block generated in the copy/conversion unit through a bland source separation(BSS) algorithm.