Methods, devices and system for transmission of digital data
    51.
    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。

    Encoding and decoding a video image sequence by image areas
    53.
    发明授权
    Encoding and decoding a video image sequence by image areas 有权
    通过图像区域编码和解码视频图像序列

    公开(公告)号:US09143790B2

    公开(公告)日:2015-09-22

    申请号:US13324968

    申请日:2011-12-13

    CPC classification number: H04N19/136 H04N19/105 H04N19/11 H04N19/176

    Abstract: A method for coding a sequence of video images comprising a cutting into zones of at least one current image of the sequence, characterized in that, for the coding of at least one target zone of said at least one current image, it comprises the steps of: determination (E2) of a set of candidate zones in previously coded and then decoded parts of images of the sequence, minimizing a prediction error calculated over the neighborhood of the target zone, formation (E3) of a set of groups of candidate zones in said set of candidate zones, as a function of a criterion of similarity between the candidate zones, identification (E6) of a best group in said set of groups, minimizing a reconstruction error with respect to the target zone, determination (E6) of an indication (n) representative of said identified best group; and coding (E7) of said indication (n).

    Abstract translation: 一种用于对视频图像序列进行编码的方法,包括切割到所述序列的至少一个当前图像的区域,其特征在于,对于所述至少一个当前图像的至少一个目标区域的编码,其包括以下步骤: :在序列的图像的先前编码的和然后解码的部分中的一组候选区域的确定(E2),使在目标区域的邻域上计算的预测误差最小化,一组候选区域的集合(E3) 所述候选区域集合作为候选区域之间的相似性标准的函数,所述组中最佳组的标识(E6)最小化相对于目标区域的重建误差,确定(E6) 指示(n)代表所述鉴定的最佳组; 和所述指示(n)的编码(E7)。

    Encoding and decoding an image or image sequence divided into pixel blocks
    54.
    发明授权
    Encoding and decoding an image or image sequence divided into pixel blocks 有权
    对分成像素块的图像或图像序列进行编码和解码

    公开(公告)号:US08787685B2

    公开(公告)日:2014-07-22

    申请号:US12918963

    申请日:2009-02-20

    Abstract: A method and apparatus are provided for coding an image or a sequence of images, generating a data stream including data representative of pixel groups, referred to as blocks, in one of the images. The method includes: grouping blocks in a cluster of blocks according to the proximity of their respective values corresponding to at least one block parameter to be coded; determining a value of the parameter, the value being characteristic of said group of blocks; coding blocks of the cluster, where the values of the blocks for the parameter are coded implicitly by inheritance of the characteristic value or are coded as refinements relative to the characteristic value, and coding a data structure associated with the cluster of blocks, the data structure including data associated with the characteristic value.

    Abstract translation: 提供了一种用于对图像或一系列图像进行编码的方法和装置,在其中一个图像中生成包括表示像素组的数据的数据流,称为块。 该方法包括:根据其对应于要编码的至少一个块参数的相应值的接近度来对块簇中的块进行分组; 确定参数的值,所述值是所述块组的特征; 编码块的编码块,其中参数的块的值通过特征值的继承隐含地编码,或者被编码为相对于特征值的细化,以及编码与块簇相关联的数据结构,数据结构 包括与特征值相关联的数据。

    VIDEO ENCODING AND DECODING USING AN EPITOME
    56.
    发明申请
    VIDEO ENCODING AND DECODING USING AN EPITOME 审中-公开
    视频编码和解码使用EPITOME

    公开(公告)号:US20130215965A1

    公开(公告)日:2013-08-22

    申请号:US13881643

    申请日:2011-10-18

    Inventor: Isabelle Amonou

    Abstract: A method and apparatus are provided for encoding an image sequence. The method includes the following steps for at least one current image of the sequence, namely: construction of an epitome representative of the current image, from a set of at least two images from the sequence; and inter-image prediction of the current image from the epitome.

    Abstract translation: 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:针对序列的至少一个当前图像,即从该序列的一组至少两个图像中构建代表当前图像的缩影图; 以及来自缩影图像的当前图像的图像间预测。

    METHOD AND DEVICE FOR ENCODING AN IMAGE USING A PREDICTION MASK DECODING METHOD AND DEVICE AND CORRESPONDING SIGNALS AND COMPUTER PROGRAMS
    57.
    发明申请
    METHOD AND DEVICE FOR ENCODING AN IMAGE USING A PREDICTION MASK DECODING METHOD AND DEVICE AND CORRESPONDING SIGNALS AND COMPUTER PROGRAMS 有权
    使用预测掩码解码方法和设备以及相关信号和计算机程序编码图像的方法和设备

    公开(公告)号:US20110286521A1

    公开(公告)日:2011-11-24

    申请号:US13146875

    申请日:2010-01-26

    Abstract: A method is provided for encoding at least one image, divided into macroblocks, one macroblock including a set of blocks de pixels. The method includes, for at least one current macroblock of a current image, at least two iterations of the following steps: allocation of a priority level for encoding to at least one pixel of the current macroblock, selection of a pixel with the highest priority level called the priority pixel, prediction of a set of pixels including the priority pixel and a step of encoding a remainder from prediction for a region made up of predicted pixels of the macroblock, called the predicted region, the encoding step being used as and when the predicted region meets a predetermined encoding criterion.

    Abstract translation: 提供了一种用于将至少一个图像分割成宏块的方法,一个宏块包括一组块de像素。 该方法包括对于当前图像的至少一个当前宏块,进行以下步骤的至少两次迭代:将编码优先级分配给当前宏块的至少一个像素,选择具有最高优先级的像素 称为优先像素,包括优先像素的一组像素的预测,以及将由预测的宏块的预测像素组成的区域预测的余数进行编码的步骤,称为预测区域,编码步骤用作何时以及何时 预测区域满足预定的编码标准。

    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
    58.
    发明申请
    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
    用于编码执行时间预测,相关信号,数据存储介质,方法和解码设备和计算机程序产品的图像序列的方法和设备

    公开(公告)号:US20110103487A1

    公开(公告)日:2011-05-05

    申请号:US13002422

    申请日:2009-06-30

    CPC classification number: H04N7/365 H04N19/137 H04N19/46 H04N19/537 H04N19/543

    Abstract: 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.

    Abstract translation: 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。

    METHOD FOR THE VARIABLE-COMPLEXITY DECODING OF AN IMAGE SIGNAL, CORRESPONDING DECODING TERMINAL, ENCODING METHOD, ENCODING DEVICE, COMPUTER SIGNAL AND PROGRAMS
    59.
    发明申请
    METHOD FOR THE VARIABLE-COMPLEXITY DECODING OF AN IMAGE SIGNAL, CORRESPONDING DECODING TERMINAL, ENCODING METHOD, ENCODING DEVICE, COMPUTER SIGNAL AND PROGRAMS 有权
    用于图像信号的可变复杂度解码的方法,相应的解码终端,编码方法,编码设备,计算机信号和程序

    公开(公告)号:US20100278444A1

    公开(公告)日:2010-11-04

    申请号:US12809838

    申请日:2008-12-19

    Abstract: A method is provided decoding a digital image signal in a decoding terminal that uses a variable-complexity decoding, enabling, for at least one step in the decoding, selection of at least one decoding tool from at least two available decoding tools. The method includes the following steps: identifying from the images control images and intermediate images; applying to each of the control images, for at least one step of the decoding, at least one predetermined decoding tool imposed by the signal; applying to at least one of the intermediate images, for at least one step of the decoding, at least one decoding tool selected by the decoding terminal and not imposed by the signal.

    Abstract translation: 提供一种在使用可变复杂度解码的解码终端中对数字图像信号进行解码的方法,使得至少一个步骤能够从至少两个可用的解码工具中选择至少一个解码工具。 该方法包括以下步骤:从图像中识别控制图像和中间图像; 对每个控制图像应用至少一个解码步骤,由该信号施加的至少一个预定解码工具; 对至少一个中间图像应用至少一个解码步骤,由解码终端选择并且不由该信号施加的至少一个解码工具。

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