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公开(公告)号:US6002440A
公开(公告)日:1999-12-14
申请号:US29881
申请日:1998-03-02
CPC分类号: H04N19/587 , H04N19/124 , H04N19/132 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/192 , H04N19/61
摘要: A method and apparatus to encode a video signal representing a moving picture, the method comprising:receiving successive frames of a video signal;coding each frame of the video signal with reference to a preceding frame of the video signal, so generating a first set of data which, when reconstructed, represents a first playback mode of the moving picture;coding each frame of the video signal, where n is an integer, so generating a second set of data which, when reconstructed, represents a second playback mode of the moving picture;decoding the first set of data to produce a first reconstructed video signal;decoding the second set of data to produce a second reconstructed video signal;calculating the differences between a frame of the second reconstructed video signal and a frame of the first reconstructed video signal corresponding to the frame succeeding the frame of the second video signal and, when the differences exceed a threshold, coding the differences and so generating a further set of data.
摘要翻译: PCT No.PCT / GB97 / 03296 Sec。 371日期1998年3月2日 102(e)1998年3月2日PCT 1997年12月1日PCT PCT。 公开号WO98 / 26604 日期1998年6月18日一种对表示运动图像的视频信号进行编码的方法和装置,该方法包括:接收视频信号的连续帧; 参考视频信号的前一帧对视频信号的每一帧进行编码,从而产生第一组数据,该数据在被重构时表示运动图像的第一重放模式; 对视频信号的每个帧进行编码,其中n是整数,从而生成第二组数据,其在重构时表示运动图像的第二播放模式; 解码第一组数据以产生第一重构视频信号; 解码第二组数据以产生第二重构视频信号; 计算第二重建视频信号的帧与对应于第二视频信号的帧之后的帧的第一重构视频信号的帧之间的差异,并且当差超过阈值时,对差异进行编码,从而生成另外的 一组数据