Device and method for scalable encoding and decoding of image data flow and corresponding signal and computer program
    22.
    发明授权
    Device and method for scalable encoding and decoding of image data flow and corresponding signal and computer program 有权
    用于图像数据流的可扩展编码和解码的设备和方法以及相应的信号和计算机程序

    公开(公告)号:US08422805B2

    公开(公告)日:2013-04-16

    申请号:US12373286

    申请日:2007-07-06

    CPC classification number: H04N21/234327 H04N21/2662

    Abstract: A method of coding an image or a sequence of images generating a flow of data in the form of groups of blocks, at least one group of blocks containing image blocks having a resolution and a quality level of identical quantification, the method including the following steps for the at least one group of blocks, of a) a first coding so that each block of the at least one group of blocks has at least one associated parameter that is given a first value, and b) a second coding for giving the associated parameter for at least one block of the at least one group of blocks a second value, so that for the at least one block, the first and second values given for the parameter can be combined during decoding to provide a value assigned to the parameter.

    Abstract translation: 一种编码图像或一系列图像的方法,所述图像或图像序列以块组的形式生成数据流,至少一组包含具有相同量化的分辨率和质量水平的图像块的块,所述方法包括以下步骤 对于所述至少一组块,a)第一编码,使得所述至少一组块的每个块具有给定第一值的至少一个相关联的参数,以及b)用于给出相关联的块的第二编码 所述至少一组块的至少一个块的参数为第二值,使得对于所述至少一个块,在解码期间可以组合为参数给出的第一值和第二值,以提供分配给该参数的值。

    Image encoding method and device implementing an improved prediction, corresponding decoding method and device, signal and computer programs
    23.
    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

    Abstract: 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.

    Abstract translation: 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。

    Method For Filtering, Transmitting and Receiving Scalable Video Streams, and Corresponding Programs, Server, Intermediate Node and Terminal
    25.
    发明申请
    Method For Filtering, Transmitting and Receiving Scalable Video Streams, and Corresponding Programs, Server, Intermediate Node and Terminal 有权
    用于过滤,发送和接收可扩展视频流的方法,以及对应程序,服务器,中间节点和终端

    公开(公告)号:US20080310497A1

    公开(公告)日:2008-12-18

    申请号:US11996196

    申请日:2006-07-18

    Abstract: A method is provided for filtering a scalable video stream, organized in the form of data unit blocks, each of which comprises a base data unit and a set of data units distributed according to two types of enhancement data, corresponding respectively to time and/or space and/or quality characteristics and making it possible to define several quality levels. The method defines at least two distinct filtering profiles, or paths of each block data units, wherein each path defines a row of successive foldover positions and each foldover position uses at least by one less data units than a previous position, and selects one of the paths according to a predetermined criterion, taking into account the type of content of the stream and/or at least one information item representing the capacities of a terminal receiving the stream.

    Abstract translation: 提供了一种用于过滤以数据单元块的形式组织的可伸缩视频流的方法,每个数据单元块包括分别对应于时间和/或时间的两种类型的增强数据的基本数据单元和一组数据单元, 空间和/或质量特征,并且可以定义几个质量水平。 该方法定义了至少两个不同的过滤简档或每个块数据单元的路径,其中每个路径定义一连续的后置位置行,并且每个舍弃位置使用比先前位置少至少一个数据单元,并且选择 考虑到流的内容的类型和/或表示接收流的终端的容量的至少一个信息项的根据预定标准的路径。

    Method and Device for Coding a Sequence of Video Images
    26.
    发明申请
    Method and Device for Coding a Sequence of Video Images 审中-公开
    用于编码视频图像序列的方法和装置

    公开(公告)号:US20080037633A1

    公开(公告)日:2008-02-14

    申请号:US11571946

    申请日:2005-06-28

    CPC classification number: H04N19/615 H04N19/13 H04N19/61 H04N19/63

    Abstract: A video image sequence is coded or decoded. By motion compensated temporal filtering, using discrete wavelet decomposition, the discrete wavelet is decomposed by dividing the video image sequence into source and destination groups of images. An image in the destination group is determined from at least one image including pixels in the first group of the source group. The representative image includes pixels and subpixels determined from pixels and subpixels obtained by upsampling at least one image in the source group.

    Abstract translation: 视频图像序列被编码或解码。 通过运动补偿时间滤波,使用离散小波分解,离散小波通过将视频图像序列划分为源和目标图像组来分解。 从包括源组的第一组中的像素的至少一个图像确定目的地组中的图像。 代表图像包括通过对源组中的至少一个图像进行上采样而获得的像素和子像素确定的像素和子像素。

    Insertion of messages in digital data
    27.
    发明授权
    Insertion of messages in digital data 失效
    在数字数据中插入消息

    公开(公告)号:US07254830B2

    公开(公告)日:2007-08-07

    申请号:US09990268

    申请日:2001-11-23

    Abstract: The invention proposes a method of inserting a message in a subset (VO) of digital data representing physical quantities, characterized in that it includes the steps of: estimating (E4) a capacity to receive a message for said subset, selecting (E5) a message with a size less than or equal to the estimated capacity, in a set of a messages, inserting (E6) the selected message in the said subset of digital data. The invention applies particularly to an object in a digital image.

    Abstract translation: 本发明提出了一种在表示物理量的数字数据的子集(VO)中插入消息的方法,其特征在于包括以下步骤:估计(E 4)接收所述子集的消息的容量,选择(E 5 )在一组消息中具有尺寸小于或等于估计容量的消息,在所述数字数据子集中插入(E 6)所选择的消息。 本发明特别适用于数字图像中的对象。

    Adaptive optimization methods, devices and appliances for the transmission of coded signals
    28.
    发明授权
    Adaptive optimization methods, devices and appliances for the transmission of coded signals 失效
    用于传输编码信号的自适应优化方法,设备和设备

    公开(公告)号:US06996170B2

    公开(公告)日:2006-02-07

    申请号:US09902757

    申请日:2001-07-12

    Abstract: A method of transmitting blocks of data, in which, for at least one of the blocks of data, at least one parameter associated with this block of data is transmitted, the parameter representing the relative importance of the block of data associated with this parameter within the message transmitted by all the blocks of data. The data is coded by a channel coding method which does not take into account the parameter. Correlatively, the invention also concerns a decoding method associated with this transmission method. This way, data judged to be more important than other data may benefit from a channel decoding of higher quality. The methods described herein have application to devices and appliances implementing these methods.

    Abstract translation: 一种发送数据块的方法,其中,对于至少一个数据块,发送与该数据块相关联的至少一个参数,表示与该参数相关联的数据块的相对重要性的参数在 该消息由所有数据块传输。 数据通过不考虑参数的信道编码方法进行编码。 相应地,本发明还涉及与该传输方法相关联的解码方法。 这样,被判断为比其他数据更重要的数据可能受益于较高质量的信道解码。 本文描述的方法适用于实现这些方法的设备和设备。

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