| 摘要 |
PURPOSE: A method of hiding an error in intra frame using spatio-temporal information is provided to effectively hide even an error that is generated in continuous macro blocks. CONSTITUTION: A macro block I having an error is detected from intra frame(S1). A macro block B of B-frame corresponding to the detected macro block is found from neighboring B-frame of the previous group of picture(S2). A backward motion vector is found from information about the macro block of B-frame, to search for a macro black B' that has been moved from the position of the macro block of B-frame by the backward motion vector(S3). A macro block is selected from macro blocks of B-frame including the macro block B' and a forward motion vector is found from information of the selected macro block, to search for a reference macro block P of a corresponding anchor frame(S6). Each pixel data of the reference macro block of the anchor frame is copied as pixel data of the macro block I having the error(S8).
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