Method of estimating motion in sequences of moving images using deformable meshes, video coder and decoder implementing the method
    1.
    发明授权
    Method of estimating motion in sequences of moving images using deformable meshes, video coder and decoder implementing the method 失效
    使用可变形网格,视频编码器和解码器实现该方法的运动图像序列估计运动的方法

    公开(公告)号:US08761250B2

    公开(公告)日:2014-06-24

    申请号:US11662756

    申请日:2005-09-06

    IPC分类号: H04N11/02

    摘要: The invention concerns a method which consists in analyzing a field of motion of images, estimated by using a first mesh, to detect a faulty area in the first mesh, and in locating a rupture line in said area; then generating a second mesh including a faultless part consisting of meshes of the first mesh outside the faulty area and two sub-meshes which overlap in a region including the rupture line. Each of the two sub-meshes includes respective meshes delimited by nodes including nodes shared with the faultless part, located at the boundary of the faulty area, and additional nodes not belonging to the faultless part, the rupture line being located between the respective nodes of the two sub-meshes shared with the faultless part. Said second mesh is used to finally estimate the field of motion in the group of images concerned.

    摘要翻译: 本发明涉及一种方法,该方法包括:通过使用第一网格估计的图像的运动场,以检测第一网格中的故障区域,以及在所述区域中定位断裂线; 然后生成包括由故障区域外的第一网格的网格构成的无缺陷部分和在包括断裂线的区域中重叠的两个子网格的第二网格。 两个子网格中的每一个包括由包括位于故障区域的边界处的无故障部分共享的节点和不属于无故障部分的附加节点的节点分隔的各个网格,断裂线位于 两个子网与无故障部分共享。 所述第二网格用于最终估计相关图像组中的运动场。

    Method for encoding and decoding images, encoding and decoding devices, corresponding data streams and computer program
    2.
    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。

    Prediction of an image by compensation during forward movement
    3.
    发明授权
    Prediction of an image by compensation during forward movement 有权
    在向前运动期间通过补偿预测图像

    公开(公告)号:US09055293B2

    公开(公告)日:2015-06-09

    申请号:US13124531

    申请日:2009-10-13

    摘要: A method is provided for predicting an image by compensation during forward movement from at least one reference image. For at least one block of a reference image, referred to as a reference block, the prediction method includes the following steps: determining at least one piece of movement information, representing a movement between said reference block and a matching block in the image to be predicted; determining at least one enlarged block, including the reference block and at least one point of a block adjacent to said reference block in the reference image; and determining a prediction value for at least one point of the image to be predicted from the at least one enlarged block and from the movement information determined for the reference block.

    摘要翻译: 提供了一种用于通过从至少一个参考图像向前移动期间的补偿来预测图像的方法。 对于被称为参考块的参考图像的至少一个块,预测方法包括以下步骤:确定表示所述参考块和图像中匹配块之间的移动的至少一个移动信息 预料到的; 确定包括所述参考块的至少一个放大块和与所述参考图像中的所述参考块相邻的块的至少一个点; 以及从所述至少一个放大块中确定要预测的图像的至少一个点的预测值和从为所述参考块确定的移动信息。

    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
    4.
    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
    7.
    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。

    IMAGE ENCODING METHOD AND DEVICE IMPLEMENTING AN IMPROVED PREDICTION, CORRESPONDING DECODING METHOD AND DEVICE, SIGNAL AND COMPUTER PROGRAMS
    10.
    发明申请
    IMAGE ENCODING METHOD AND DEVICE IMPLEMENTING AN IMPROVED PREDICTION, CORRESPONDING DECODING METHOD AND DEVICE, SIGNAL AND COMPUTER PROGRAMS 有权
    图像编码方法和设备实现改进的预测,相应的解码方法和设备,信号和计算机程序

    公开(公告)号:US20110188768A1

    公开(公告)日:2011-08-04

    申请号:US13002441

    申请日:2009-06-26

    IPC分类号: G06K9/36

    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。