| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an error concealment mode determination method for determining which of spatial error concealment (SEC) and temporal error concealment (TEC) should be used. <P>SOLUTION: If a video frame is an intra-frame, a similarity metric is used to determine whether the intra-frame represents a scene change or not, and a complex polynomial is used to determine which of SEC and TEC should be used. A spatial error concealment technique divides a corrupt macroblock into four different regions, namely, a corner region, a column region adjacent to the corner region, a row region adjacent to the corner region, and a remainder region. Those regions are reconstructed in the order above and information from earlier reconstructed regions may be used in later reconstructed regions. An inter-macroblock may be refreshed using spatial error concealment if there has been damage that may cause the inter-block to propagate the errors. <P>COPYRIGHT: (C)2013,JPO&INPIT |
