会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 22. 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。