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    • 7. 发明申请
    • METHOD AND APPARATUS FOR SCALABLE VIDEO ENCODING AND DECODING
    • 用于可扩展视频编码和解码的方法和装置
    • WO2007047077A2
    • 2007-04-26
    • PCT/US2006038380
    • 2006-10-03
    • THOMSON LICENSINGYIN PENGBOYCE JILL MACDONALDPANDIT PURVIN BIBHAS
    • YIN PENGBOYCE JILL MACDONALDPANDIT PURVIN BIBHAS
    • H04N19/895H04N19/129H04N19/132H04N19/17H04N19/174H04N19/37H04N19/46H04N19/61H04N19/70
    • An encoder, a decoder, corresponding encoding and decoding methods, video signal structure, and storage media are provided for scalable video encoding and decoding. A scalable video encoder includes an encoder (100) for encoding a picture to form a base layer bitstream and an enhancement layer bitstream. The base layer bitstream and the enhancement layer bitstream are formed by partitioning the picture into a plurality of image blocks, grouping the plurality of image blocks into one or more slice groups in the base layer bitstream and into two or more slice groups in the enhancement layer bitstream, encoding all of the one or more slice groups in the base layer bitstream and less than all of the two or more slice groups in the enhancement layer such that at least one slice group from among the two or more slice groups is intentionally un-encoded in the enhancement layer bitstream, encoding a syntax element in a header to indicate the at least one intentionally un-encoded slice group in the enhancement layer.
    • 提供编码器,解码器,对应的编码和解码方法,视频信号结构和存储介质,用于可伸缩视频编码和解码。 可分级视频编码器包括用于编码图像以形成基本层比特流和增强层比特流的编码器(100)。 通过将图像分割成多个图像块来形成基本层比特流和增强层比特流,将多个图像块分组成基本层比特流中的一个或多个切片组,并将该多个图像块分组成增强层中的两个或更多个切片组 比特流,编码所述基本层比特流中的所述一个或多个切片组,并且小于所述增强层中的所述两个或更多个切片组中的全部,使得来自所述两个或更多个切片组中的至少一个切片组被有意地取消, 在增强层比特流中编码,对头部中的语法元素进行编码,以指示增强层中的至少一个有意未编码的切片组。
    • 8. 发明申请
    • METHOD AND APPARATUS FOR WEIGHTED PREDICTION ESTIMATION USING A DISPLACED FRAME DIFFERENTIAL
    • 用于使用移位帧差分进行加权预测的方法和装置
    • WO2005004492A2
    • 2005-01-13
    • PCT/US2004020028
    • 2004-06-23
    • THOMSON LICENSING SAYIN PENGBOYCE JILL MACDONALD
    • YIN PENGBOYCE JILL MACDONALD
    • H04N7/26H04N7/36H04N7/46H04N7/50
    • H04N19/577H04N19/105H04N19/137H04N19/172H04N19/192H04N19/51H04N19/61
    • A video encoder (200, 300) and corresponding methods (600, 700) are provided for weighted prediction estimation using a displaced frame difference or differential, the encoder embodying a method (700) for receiving (712) a substantially uncompressed image block, assigning (714) a weighting factor for the image block corresponding to a particular reference picture having a corresponding index, computing (716) motion vectors corresponding to the difference between the image block and the particular reference picture, motion compensating (718) the particular reference picture in correspondence with the motion vectors, multiplying (720) the motion compensated reference picture by the assigned weighting factor to form a weighted motion compensated reference picture, subtracting (722) the weighted motion compensated reference picture from the substantially uncompressed image block, and encoding (724) a signal indicative of the difference between the substantially uncompressed image block and the weighted motion compensated reference picture along with the corresponding index of the particular reference picture.
    • 提供了使用移位的帧差或差分进行加权预测估计的视频编码器(200,300)和相应的方法(600,700),该编码器体现了用于接收(712)基本上未压缩的图像块的方法(700) (714)与具有相应索引的特定参考图片对应的图像块的加权因子,计算(716)与图像块和特定参考图片之间的差异对应的运动矢量,运动补偿(718)特定参考图片 与运动矢量相对应地将运动补偿参考图像乘以(720)分配的加权因子以形成加权运动补偿参考图像,从实质上未压缩图像块中减去(722)加权运动补偿参考图像,并且编码 724)表示基本上未压缩的图像块与图像块之间的差异的信号 加权运动补偿参考图片以及特定参考图片的对应索引。