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    • 3. 发明公开
    • METHOD AND SYSTEM OF ERROR CONCEALMENT
    • VERFAHREN UND VORRICHTUNG ZUR FEHLERVERSCHLEIERUNG
    • EP2093957A1
    • 2009-08-26
    • EP07845902.1
    • 2007-12-12
    • Huawei Technologies Co., Ltd.
    • LEUNG, Raymond W. K.YAO, JunMA, YanzhuoCHANG, YilinHUO, Junyan
    • H04L27/26H04N7/68
    • H04N19/174H04L5/0044H04L27/2608H04N19/895
    • A method for concealing errors includes: the transmitting end splits the received compressed video data into slice structures, allocates the adjacent slice structures to non-adjacent OFDM sub-channels or sub-channel groups, and sends the slice structures to the receiving end; the receiving end conceals the errors on a slice structure according to the slice structure which is chronologically or spatially related to the erroneous slice structure if detecting that any error occurs on the slice structure. A system for concealing errors includes a transmitting end and a receiving end. The transmitting end includes a slice splitting module and a frequency domain interleaving module; the receiving end includes a domain de-interleaving module, a decompression and error detecting module, and an error concealing module. The technical solution under the present invention slashes the probability of concurrence of errors on adjacent slice structures, improves the error concealment efficiency greatly, and slashes the probability of concurrence of errors on the slice structures in the counterpart position of adjacent video frames.
    • 掩蔽误差的方法包括:发送端将接收的压缩视频数据分割成片结构,将相邻的片结构分配给非相邻的OFDM子信道或子信道组,并将片结构发送到接收端; 如果检测到切片结构上发生任何错误,则接收端根据与时间顺序或空间上相关的切片结构的切片结构来隐藏切片结构上的错误。 隐藏错误的系统包括发送端和接收端。 发送端包括分片模块和频域交织模块; 接收端包括域去交织模块,解压缩和错误检测模块以及错误隐藏模块。 本发明的技术方案减少了相邻片段结构上出现错误的可能性,大大提高了错误隐藏效率,并减少了相邻视频帧对应位置的片段结构上错误的并发概率。