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    • 5. 发明申请
    • Adaptive Coding and Decoding
    • 自适应编码和解码
    • US20090129464A1
    • 2009-05-21
    • US12087577
    • 2007-01-12
    • Joel JungGuillaume LarocheMarc Ballavoine
    • Joel JungGuillaume LarocheMarc Ballavoine
    • H04N7/32H04N11/02
    • H04N19/517H04N19/196H04N19/463H04N19/52
    • The invention relates to a method of transmitting an image portion, which method comprises, in a coding phase analyzing a coding context, adapting a parameter of a group of prediction functions that can be used for coding, forming a first predicted descriptor using a selected prediction function, and determining and transmitting a residue between the first predicted descriptor and the current descriptor. The method further includes a decoding phase comprising analyzing a decoding context, adapting a parameter of a group of prediction functions that can be used for decoding, forming a second predicted descriptor using a selected prediction function and combining the second predicted descriptor and the received residue to deliver a decoded version of the current descriptor.
    • 本发明涉及一种发送图像部分的方法,该方法包括:在分析编码上下文的编码阶段中,对可用于编码的一组预测函数的参数进行调整,使用所选择的预测形成第一预测描述符 功能,以及确定和发送第一预测描述符和当前描述符之间的残差。 该方法还包括解码阶段,包括分析解码上下文,调整可用于解码的一组预测函数的参数,使用所选择的预测函数形成第二预测描述符,并将第二预测描述符和接收到的残差组合 提供当前描述符的解码版本。
    • 9. 发明授权
    • Video encoding and decoding
    • 视频编码和解码
    • US08824555B2
    • 2014-09-02
    • US14003564
    • 2012-03-08
    • Guillaume LarochePatrice Onno
    • Guillaume LarochePatrice Onno
    • H04B1/66H04N7/12H04N11/02H04N11/04H04N7/50H04N7/26
    • H04N19/503H04N19/105H04N19/107H04N19/139H04N19/176H04N19/43H04N19/46H04N19/513H04N19/52H04N19/593H04N19/61
    • A temporal motion vector predictor is includable, together with one or more spatial motion vector predictors, in a set of motion vector predictors for a block to encode of a current frame. A method of determining the temporal motion vector predictor comprises selecting as the temporal predictor one motion vector from among motion vectors in a reference block of a reference frame different from the current frame. The reference block is a block of the reference frame collocated with the block to encode or a block of the reference frame neighboring the collocated block. The selection is based on a diversity criterion for achieving diversity among the predictors of the set.This can reduce the motion vector memory requirements with no or no significant additional coding efficiency penalty. Alternatively, even if the motion vector memory is not reduced in size, coding efficiency improvements can be achieved.
    • 时间运动矢量预测器可与一个或多个空间运动矢量预测器一起包含在用于编码当前帧的块的一组运动矢量预测器中。 确定时间运动矢量预测器的方法包括从与当前帧不同的参考帧的参考块中的运动矢量中选择一个运动矢量作为时间预测器。 参考块是与要编码的块并置的参考帧的块或与并置块相邻的参考帧的块。 该选择基于用于在集合的预测器之间实现多样性的分集标准。 这可以减少运动矢量存储器的需求,没有或没有显着的附加编码效率损失。 或者,即使运动矢量存储器的尺寸没有减小,也可以实现编码效率的提高。
    • 10. 发明申请
    • Method and Device for Encoding a Sequence of Images and Method and Device for Decoding a Sequence of Image
    • 用于编码图像序列的方法和装置以及用于解码图像序列的方法和装置
    • US20140169476A1
    • 2014-06-19
    • US14123941
    • 2012-06-05
    • Guillaume LarochePatrice Onno
    • Guillaume LarochePatrice Onno
    • H04N19/503H04N19/51
    • H04N19/105H04N19/174H04N19/176H04N19/44H04N19/503H04N19/51H04N19/513H04N19/52H04N19/65H04N19/70H04N19/89
    • A method and device for deriving motion information of an image portion of an image predicted by motion prediction with respect to at least one reference image, the method comprising for said image portion: obtaining a number i of motion information predictors 808 of a second set of motion information predictors 814 taken from a first set of motion information predictors for decoding the image portion; generating said second set of motion information predictors 814 consisting of said number i of motion information predictors, wherein there are no duplicates among the i motion information predictors of said second set. A method and device for of decoding a bitstream, and a method and device for encoding a sequence of image including a method for deriving motion information of an image portion of an image predicted by motion prediction with respect to at least one reference image as described above.
    • 一种用于导出关于至少一个参考图像通过运动预测预测的图像的图像部分的运动信息的方法和装置,所述方法包括用于所述图像部分:获得第二组的运动信息预测器808的数量i 运动信息预测器814取自用于解码图像部分的第一组运动信息预测器; 生成由运动信息预测器的所述数量i组成的所述第二组运动信息预测器814,其中在所述第二组的i个运动信息预测器中不存在重复。 一种用于对比特流进行解码的方法和装置,以及用于编码图像序列的方法和装置,所述方法和装置包括用于导出如上所述的关于至少一个参考图像的通过运动预测预测的图像的图像部分的运动信息的方法 。