Method for encoding and decoding images, encoding and decoding devices, corresponding data streams and computer program
    1.
    发明授权
    Method for encoding and decoding images, encoding and decoding devices, corresponding data streams and computer program 有权
    图像编码和解码,设备编码和解码,相应的数据流和计算机程序的方法

    公开(公告)号:US09451280B2

    公开(公告)日:2016-09-20

    申请号:US13380386

    申请日:2010-06-17

    摘要: A method and apparatus are provided for encoding an image sequence. The method includes the following steps, for at least one group of blocks of an image: determining, for each block, at least one parameter characteristic of said block; forming at least one cluster including the blocks having at least one similar characteristic parameter; encoding the blocks of said cluster, the similar characteristic parameter(s) associated with said cluster being encoded only once; encoding the blocks that do not belong to any cluster, the characteristic parameter(s) associated with each of said blocks not being encoded; generating a data stream; and inserting into said stream, at least one piece of information on the partitioning of the group(s), in order to identify the outer block(s) within a group.

    摘要翻译: 提供了一种用于对图像序列进行编码的方法和装置。 该方法包括以下步骤:针对图像的至少一组块:为每个块确定所述块的至少一个参数特性; 形成包括具有至少一个相似特征参数的块的至少一个簇; 编码所述簇的块,与所述簇相关联的类似特征参数仅被编码一次; 对不属于任何集群的块进行编码,与未被编码的每个所述块相关联的特征参数; 生成数据流; 以及将关于所述组的划分的至少一条信息插入到所述流中,以便识别组内的外部块。

    Method and device for encoding a sequence of images implementing a temporal prediction, corresponding signal, data storage medium, method and decoding device and computer program products
    2.
    发明授权
    Method and device for encoding a sequence of images implementing a temporal prediction, corresponding signal, data storage medium, method and decoding device and computer program products 有权
    用于编码实现时间预测,对应信号,数据存储介质,方法和解码装置以及计算机程序产品的图像序列的方法和装置

    公开(公告)号:US08855206B2

    公开(公告)日:2014-10-07

    申请号:US13002422

    申请日:2009-06-30

    摘要: A method and apparatus are provided for coding a sequence of images. The method includes a step of coding at least one block of a current image of the sequence, implementing a prediction associating the block with at least one corresponding block in a reference image. The prediction includes the following steps, for at least one given block of the current image or of the reference image: determination of a plurality of control vectors for the block; at least one splitting of the block into sub-blocks; determination of a plurality of control vectors for the sub-blocks; and determination of a prediction value for at least one point of the current image. Moreover, the method includes a step of inserting, into a signal representative of the sequence, information regarding reconstruction of the control vectors for the given block.

    摘要翻译: 提供了一种用于对图像序列进行编码的方法和装置。 该方法包括编码序列的当前图像的至少一个块的步骤,实现将该块与参考图像中的至少一个相应块相关联的预测。 对于当前图像或参考图像的至少一个给定块,预测包括以下步骤:确定块的多个控制向量; 将所述块至少一个分割成子块; 确定所述子块的多个控制向量; 以及确定当前图像的至少一个点的预测值。 此外,该方法包括将代表该序列的信号插入到关于给定块的控制向量的重建的信息的步骤。

    Image encoding method and device implementing an improved prediction, corresponding decoding method and device, signal and computer programs
    5.
    发明授权
    Image encoding method and device implementing an improved prediction, corresponding decoding method and device, signal and computer programs 有权
    图像编码方法和装置实现改进的预测,对应的解码方法和装置,信号和计算机程序

    公开(公告)号:US08320692B2

    公开(公告)日:2012-11-27

    申请号:US13002441

    申请日:2009-06-26

    IPC分类号: G06K9/36 G06K9/46

    摘要: Techniques are provided for encoding and decoding image data. The techniques implement a prediction of data of a current block based on at least one already encoded block or reference block, wherein said prediction step takes into account a set of encoded blocks adjacent to said current block and including blocks that have not yet been considered according to said writing path order. Encoding includes the steps of: generating a dependence tree associating a current block with at least one reference block from which the predicted block associated with the current block has been predetermined; and inserting information representative of said dependence tree into said set of data associated with each block.

    摘要翻译: 为图像数据进行编码和解码提供了技术。 该技术基于至少一个已经编码的块或参考块来实现对当前块的数据的预测,其中所述预测步骤考虑与所述当前块相邻的一组编码块,并且包括尚未被考虑的块 写入路径命令。 编码包括以下步骤:产生将当前块与至少一个与当前块相关联的预测块预定的参考块相关联的依赖关系树; 以及将表示所述相关性树的信息插入到与每个块相关联的所述数据集合中。

    Data substream de-encapsulation method for plural symmetrical substreams and corresponding computer programs
    7.
    发明授权
    Data substream de-encapsulation method for plural symmetrical substreams and corresponding computer programs 有权
    用于多个对称子流的数据子流解封装方法和相应的计算机程序

    公开(公告)号:US09516331B2

    公开(公告)日:2016-12-06

    申请号:US13503553

    申请日:2010-10-14

    摘要: A method and apparatus are provided for encapsulating a plurality of data substreams encoded in a bit stream, wherein the encoded data substream is obtained by entropy encoding of a symbol subsequence representing an image or a series of images. The method includes grouping data substreams into substream pairs according to an iterative traversal order predetermined from the plurality of substreams, and on the basis of a pair of the substreams, obtaining a symmetrical pair by reversing a data order making up the second substream of the pair. The obtained pairs are then concatenated within a sequence. The binary stream is created by encapsulating the sequence and information related to a number of substreams and related to the sizes of pairs of symmetrical substreams.

    摘要翻译: 提供了一种用于封装编码在比特流中的多个数据子流的方法和装置,其中通过对表示图像或一系列图像的符号子序列进行熵编码来获得编码数据子流。 该方法包括根据从多个子流预定的迭代遍历顺序将数据子流分组成子流对,并且基于一对子流,通过反转构成该对的第二子流的数据顺序来获得对称对 。 所获得的对然后在序列内连接。 通过封装与多个子流相关的序列和信息并与对称子流对的大小相关联来创建二进制流。

    Method of coding and decoding images, corresponding device for coding and decoding and computer program
    8.
    发明授权
    Method of coding and decoding images, corresponding device for coding and decoding and computer program 有权
    图像编码和解码方法,用于编码和解码的相应设备和计算机程序

    公开(公告)号:US09106910B2

    公开(公告)日:2015-08-11

    申请号:US13380632

    申请日:2010-06-21

    摘要: A method and apparatus are provided for coding a signal from images, the images being split into sub-blocks of pixels. The method includes grouping at least two sub-blocks into at least one block of larger size, when the sub-blocks comply with at least one predetermined grouping criterion. A prediction is performed by applying at least one mode of motion prediction using at least two distinct motion prediction vectors, for at least one block of larger size, the motion prediction vectors being associated respectively with sub-sets of the block of larger size, comprising at least one of the sub-blocks of the block of larger size. The sub-sets are predefined and distinct.

    摘要翻译: 提供了一种用于对来自图像的信号进行编码的方法和装置,所述图像被分割成像素的子块。 该方法包括当子块符合至少一个预定分组标准时,将至少两个子块分组成更大尺寸的至少一个块。 通过使用至少两个不同的运动预测向量对至少一个较大尺寸的块应用至少一种运动预测模式来执行预测,运动预测向量分别与较大尺寸的块的子集相关联,包括 块大小的子块中的至少一个。 子集是预定义和不同的。

    METHOD OF CODING AND DECODING IMAGES, CORRESPONDING DEVICE FOR CODING AND DECODING AND COMPUTER PROGRAM
    9.
    发明申请
    METHOD OF CODING AND DECODING IMAGES, CORRESPONDING DEVICE FOR CODING AND DECODING AND COMPUTER PROGRAM 有权
    编码和解码图像的方法,编码和解码的相应设备和计算机程序

    公开(公告)号:US20120183070A1

    公开(公告)日:2012-07-19

    申请号:US13380632

    申请日:2010-06-21

    IPC分类号: H04N7/32

    摘要: A method and apparatus are provided for coding a signal from images, the images being split into sub-blocks of pixels. The method includes grouping at least two sub-blocks into at least one block of larger size, when the sub-blocks comply with at least one predetermined grouping criterion. A prediction is performed by applying at least one mode of motion prediction using at least two distinct motion prediction vectors, for at least one block of larger size, the motion prediction vectors being associated respectively with sub-sets of the block of larger size, comprising at least one of the sub-blocks of the block of larger size. The sub-sets are predefined and distinct.

    摘要翻译: 提供了一种用于对来自图像的信号进行编码的方法和装置,所述图像被分割成像素的子块。 该方法包括当子块符合至少一个预定分组标准时,将至少两个子块分组成更大尺寸的至少一个块。 通过使用至少两个不同的运动预测向量对至少一个较大尺寸的块应用至少一种运动预测模式来执行预测,运动预测向量分别与较大尺寸的块的子集相关联,包括 块大小的子块中的至少一个。 子集是预定义和不同的。