Method of and Device for Coding a Video Image Sequence in Coefficients of Sub-Bands of Different Spatial Resolutions
    31.
    发明申请
    Method of and Device for Coding a Video Image Sequence in Coefficients of Sub-Bands of Different Spatial Resolutions 有权
    用于编码不同空间分辨率子带系数的视频图像序列的方法和装置

    公开(公告)号:US20080291996A1

    公开(公告)日:2008-11-27

    申请号:US11571950

    申请日:2005-06-28

    Abstract: A video image sequence including coefficients of frequency sub-bands with different spatial resolutions is coded. A data stream including at least one restitution level (Niv N−2, Niv N−1, Niv N) is formed. The restitution levels have coefficients of frequency sub-bands whose spatial resolution equals a spatial resolution of the restitution level. There are inserted, in at least one restitution level, coefficients of frequency sub-bands with a spatial resolution higher than the spatial resolution or resolutions of the restitution level.

    Abstract translation: 编码包括具有不同空间分辨率的频率子带的系数的视频图像序列。 形成包括至少一个恢复级别(Niv N-2,Niv N-1,Niv N)的数据流。 恢复水平具有频率子带的系数,其空间分辨率等于归还水平的空间分辨率。 在至少一个恢复级别中插入具有高于恢复级别的空间分辨率或分辨率的空间分辨率的频率子带的系数。

    Methods and devices for coding and decoding digital signals, and systems using them
    32.
    发明授权
    Methods and devices for coding and decoding digital signals, and systems using them 失效
    用于对数字信号进行编码和解码的方法和装置,以及使用它们的系统

    公开(公告)号:US06631213B1

    公开(公告)日:2003-10-07

    申请号:US09539700

    申请日:2000-03-31

    Abstract: In order to code a digital signal, a simplified version of the digital signal is determined, containing only some of the information contained in the digital signal. The simplified version is coded by means of a predetermined single coding technique. This simplified version is subtracted from the digital signal, so as to obtain a residual signal. From each block of the simplified version, there is selected, for each corresponding block of the residual signal, a coding technique amongst a predetermined number M of coding techniques Ci, where i is an integer between 1 and M. Each block of the residual signal is coded by means of the previously selected coding technique.

    Abstract translation: 为了对数字信号进行编码,确定数字信号的简化版本,其中仅包含数字信号中包含的一些信息。 简化版本通过预定的单一编码技术进行编码。 从数字信号中减去该简化版本,以获得残留信号。 从简化版本的每个块中,为残留信号的每个相应块选择编码技术Ci中的预定数量M之间的编码技术,其中i是1和M之间的整数。残差信号的每个块 通过先前选择的编码技术进行编码。

    Methods and devices for coding and decoding digital signals, and systems using them
    33.
    发明授权
    Methods and devices for coding and decoding digital signals, and systems using them 失效
    用于对数字信号进行编码和解码的方法和装置,以及使用它们的系统

    公开(公告)号:US06333705B1

    公开(公告)日:2001-12-25

    申请号:US09545189

    申请日:2000-04-07

    Abstract: In order to code a digital signal, it is decomposed (20) into several subsignals; each subsignal is coded (38) by means of a coding technique taken from amongst M coding techniques Ci; and the stream of coded bits thus produced is entered (40) in a first part of a file intended to receive the coded digital signal. Then the application, successively to each coded subsignal, of each decoding technique Di associated with the coding technique Ci is simulated (48); and if and only if at least two different decoding techniques are acceptable, within the meaning of a predetermined likelihood criterion, for decoding the same coded subsignal, there is entered (52) in a second part of the file information making it possible to select, during decoding, the decoding technique associated with the coding technique used for coding this subsignal.

    Abstract translation: 为了对数字信号进行编码,将其分解成几个子信号(20) 每个子信号通过从M个编码技术Ci中获取的编码技术进行编码(38); 并且如此产生的编码比特流在用于接收编码数字信号的文件的第一部分中被输入(40)。 然后模拟与编码技术Ci相关联的每个解码技术Di的每个编码的子信号的应用(48); 并且当且仅当至少两种不同的解码技术是可接受的,在预定的可能性标准的含义内,为了解码相同的编码的子信号,在文件信息的第二部分中输入(52),使得可以选择, 在解码期间,与用于编码该子信号的编码技术相关联的解码技术。

    Methods, devices and system for transmission of digital data
    34.
    发明授权
    Methods, devices and system for transmission of digital data 失效
    数字数据传输的方法,装置和系统

    公开(公告)号:US6122267A

    公开(公告)日:2000-09-19

    申请号:US725293

    申请日:1996-10-02

    CPC classification number: H04L12/403 H04W84/12 H04W88/04 H04W88/08

    Abstract: The methods for transmission of sequences or frames of data provide for retransmitting, with a central device (21), frames of data which reach it, to destination devices, by transmission of downlink frames when the destination device is a peripheral device (24), each downlink frame having systematically a service message activating a protocol controlling access to the transmission medium shared by the central device (21) and the peripheral devices (24), and possibly a frame of data. The central device (21) and at least one peripheral device (24) form a system which is particularly well suited to a local area network, notably with a wireless transmission medium.

    Abstract translation: 当目的地设备是外围设备(24)时,用于传输序列或数据帧的方法通过传输下行链路帧,向中心设备(21)传送到达目的地设备的数据帧, 每个下行链路帧系统地具有激活控制对由中央设备(21)和外围设备(24)共享的传输介质的访问的协议以及可能的一帧数据的服务消息。 中央设备(21)和至少一个外围设备(24)形成特别适合于局域网(特别是无线传输介质)的系统。

    Device and method for scalable encoding and decoding of image data flow and corresponding signal and computer program
    38.
    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
    39.
    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。

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