APPARATUS AND METHOD FOR CONCEALING ERROR OF FRAME

摘要

An apparatus and a method for concealing an error of a frame are provided to efficiently conceal an error generated in frame and excellently restore an image. A frame decoding unit(400) decodes bit stream of a received encoded frame and confirms generation of an error of a macro block in the decoded frame. A buffer(420) stores two or more frames previously decoded and outputs the currently decoded frame by a control signal. An error correcting unit(430) searches for candidate macro blocks the most similar to the macro block having the error among the previous frames and applies weight to each candidate macro block based on error distribution for restoring the macro block having the error. A combination/output unit(440) provides a frame by replacing the macro block having the error by the restored macro block output from the error correcting unit. A control unit(411) controls the output of the current frame and controls the replacement and the combination of the macro block.