利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

99 条记录 (耗时 0.022 秒)

    Device and method for coding a sequence of images in scalable format and corresponding decoding device and method
    21.
    发明申请
    Device and method for coding a sequence of images in scalable format and corresponding decoding device and method 审中-公开
    用于以可缩放格式编码图像序列的装置和方法及相应的解码装置和方法

    公开(公告)号：US20080260043A1

    公开(公告)日：2008-10-23

    申请号：US11974734

    申请日：2007-10-16

    申请人： Vincent Bottreau ,  Dominique Thoreau ,  Yannick Olivier ,  Edouard Francois ,  Jerome Vieron ,  Christophe Chevance

    发明人： Vincent Bottreau ,  Dominique Thoreau ,  Yannick Olivier ,  Edouard Francois ,  Jerome Vieron ,  Christophe Chevance

    IPC分类号： H04N7/26

    CPC分类号： H04N19/33 ,  H04N19/105 ,  H04N19/11 ,  H04N19/137 ,  H04N19/176 ,  H04N19/187 ,  H04N19/593 ,  H04N19/61

    摘要： The invention relates to a method for coding an image data macroblock of a sequence of images presented in the form of a base layer and at least one enhancement layer. The image data macroblock to which corresponds an image data block in the base layer, called a corresponding block, belongs to the enhancement layer. The method comprises the following steps: generate, for the said image data macroblock, a prediction macroblock of image data from one block or several blocks of image data blocks of the said base layer previously coded and reconstructed, generate a macroblock of residues from the prediction macroblock and from the image data macroblock MBEL of the enhancement layer, and code the said macroblock of residues. According to the invention, the image data blocks of the said base layer are different from the corresponding block.

    摘要翻译： 本发明涉及一种用于编码以基层和至少一个增强层形式呈现的图像序列的图像数据宏块的方法。 被称为对应块的基础层中对应于图像数据块的图像数据宏块属于增强层。 该方法包括以下步骤：为所述图像数据宏块生成来自预先编码和重建的所述基本层的一个块或多个图像数据块的图像数据的预测宏块，从预测生成残差宏块 宏块和来自增强层的图像数据宏块MB EL EL，并对所述宏块进行编码。 根据本发明，所述基础层的图像数据块与相应的块不同。

    Method for reconstructing a current block of an image and corresponding encoding method, corresponding devices as well as storage medium carrying an images encoded in a bit stream
    23.
    发明授权
    Method for reconstructing a current block of an image and corresponding encoding method, corresponding devices as well as storage medium carrying an images encoded in a bit stream 有权
    用于重建图像的当前块和相应的编码方法的方法，对应的装置以及承载以比特流编码的图像的存储介质

    公开(公告)号：US09159141B2

    公开(公告)日：2015-10-13

    申请号：US13817070

    申请日：2011-08-08

    申请人： Philippe Bordes ,  Dominique Thoreau ,  Jerome Vieron ,  Edouard Francois

    发明人： Philippe Bordes ,  Dominique Thoreau ,  Jerome Vieron ,  Edouard Francois

    IPC分类号： G06K9/36 ,  G06K9/46 ,  G06T9/00 ,  H04N19/543 ,  H04N19/176 ,  H04N19/159

    CPC分类号： G06T9/004 ,  H04N19/159 ,  H04N19/176 ,  H04N19/543

    摘要： The invention is made in the field of image block encoding and reconstruction. A method for reconstructing a current block of an image is described, the current block being encoded using predictive encoding of segments resulting from geometry adaptive block partitioning of said current block. After decoding encoded data comprising at least one flag and motion vectors, wherein blocks referenced by the motion vectors are used for prediction of segments of the current block, the at least one flag and an encoding order of the motion vectors in the encoded data is used for determining which of the referenced blocks exhibits a geometry that matches the geometry of the current block and for determining a segment of the determined block, wherein prior to determining the segment, the determined block is geometry adaptive block partitioned into segments from which the segment is determined for predicting one of the segments of the current block.

    摘要翻译： 本发明是在图像块编码和重建领域中进行的。 描述用于重建图像的当前块的方法，使用对所述当前块的几何自适应块分割产生的段的预测编码对当前块进行编码。 在对包括至少一个标志和运动矢量的编码数据进行解码之后，其中由运动矢量参考的块用于预测当前块的段，使用编码数据中的运动矢量的至少一个标志和编码顺序 用于确定参考块中的哪一个表现出与当前块的几何相匹配的几何形状，并且用于确定确定的块的段，其中在确定该段之前，所确定的块是被划分成段的几何自适应块 确定用于预测当前块的一个段。

    METHOD FOR CODING AND RECONSTRUCTING A PIXEL BLOCK AND CORRESPONDING DEVICES
    24.
    发明申请
    METHOD FOR CODING AND RECONSTRUCTING A PIXEL BLOCK AND CORRESPONDING DEVICES 有权
    用于编码和重构像素块和相应设备的方法

    公开(公告)号：US20130243336A1

    公开(公告)日：2013-09-19

    申请号：US13615314

    申请日：2012-09-13

    申请人： Dominique Thoreau ,  Edouard Francois ,  Jerome Vieron

    发明人： Dominique Thoreau ,  Edouard Francois ,  Jerome Vieron

    IPC分类号： G06T9/00

    CPC分类号： G06T9/00 ,  H04N19/52 ,  H04N19/523 ,  H04N19/615

    摘要： A method for coding a block of pixels is described. The coding method comprises: determining a prediction block for the pixel block from a motion vector; calculating a residue between the pixel block and the prediction block; and code the residue. The determination of the prediction block comprises the following steps: determining an intermediate prediction block of size strictly greater than the size of the pixel block; transforming the intermediate prediction block into a first block transformed with a first transform; and transforming the first transformed block into a second block transformed with a second transform of inverse the first transform whose basis functions are shifted by at least a part of each component of the motion vector, the prediction block being extracted from the second transformed block.

    摘要翻译： 描述用于对像素块进行编码的方法。 编码方法包括：从运动矢量确定像素块的预测块; 计算像素块和预测块之间的残差; 并对残留物进行编码。 预测块的确定包括以下步骤：确定严格大于像素块大小的大小的中间预测块; 将所述中间预测块变换为用第一变换变换的第一块; 以及将所述第一变换块变换为第二变换，其中所述第二变换与所述第一变换相反，所述第一变换的基函数被所述运动矢量的每个分量的至少一部分移位，所述预测块从所述第二变换块中提取。

    Method for decoding a stream of coded data representative of a sequence of images and method for coding a sequence of images
    25.
    发明授权
    Method for decoding a stream of coded data representative of a sequence of images and method for coding a sequence of images 有权
    用于解码表示图像序列的编码数据流的方法和用于编码图像序列的方法

    公开(公告)号：US08520960B2

    公开(公告)日：2013-08-27

    申请号：US12804891

    申请日：2010-07-30

    申请人： Edouard Francois ,  Dominique Thoreau ,  Jerome Vieron ,  Philipe Bordes

    发明人： Edouard Francois ,  Dominique Thoreau ,  Jerome Vieron ,  Philipe Bordes

    IPC分类号： G06K9/36 ,  G06K9/46

    CPC分类号： H04N19/85 ,  H04N19/129 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/60

    摘要： A method for decoding a stream of coded data representative of a sequence of images divided into blocks is described. It comprises the following steps for a current block: reconstructing a residual block of residual data from the decoding of a first part of the coded stream of data relating to the current block, determining a prediction block, and reconstructing the current block by merging the residual block and the prediction block, According to the invention, the decoding method comprises in addition a step of reorganization of residual data in the residual block before the reconstruction of the current block according to the content of the prediction block.The invention also relates to a method for coding.

    摘要翻译： 描述用于解码代表被划分成块的图像序列的编码数据流的方法。 它包括对当前块的以下步骤：从与当前块相关的编码数据流的第一部分的解码中重建残余数据的残留块，确定预测块，并通过合并残差来重构当前块 块和预测块，根据本发明，解码方法还包括根据预测块的内容重构当前块之前的残差块中的残差数据的重组步骤。 本发明还涉及一种用于编码的方法。

    Method for predicting a block of image data, decoding and coding devices implementing said method
    28.
    发明申请
    Method for predicting a block of image data, decoding and coding devices implementing said method 有权
    用于预测图像数据块，实现所述方法的解码和编码装置的方法

    公开(公告)号：US20120106641A1

    公开(公告)日：2012-05-03

    申请号：US13138538

    申请日：2010-03-03

    申请人： Edouard Francois ,  Dominique Thoreau ,  Jerome Vieron

    发明人： Edouard Francois ,  Dominique Thoreau ,  Jerome Vieron

    IPC分类号： H04N7/32

    CPC分类号： H04N19/573 ,  H04N19/105 ,  H04N19/139 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/523 ,  H04N19/61

    摘要： A method for predicting a current block belonging to a current image with a view to the coding or the reconstruction of the current block is described. The method comprises the following steps: a) determining for the current block a reference block from at least one motion data previously associated with the current block, b) verifying if a predefined condition is fulfilled, the condition being representative of a temporal variation between the image data of the reference block and the image data of a prediction block of the reference block previously determined from at least one motion data associated with the reference block, c) modifying the motion data according to the result of the verification and d) generating a final prediction block for the current block from the motion data of the current block.

    摘要翻译： 描述了一种用于预测属于当前图像的当前块以便于当前块的编码或重构的方法。 该方法包括以下步骤：a）从先前与当前块相关联的至少一个运动数据确定当前块的参考块，b）验证是否满足预定义条件，该条件代表了当前块之间的时间变化 参考块的图像数据和从与参考块相关联的至少一个运动数据预先确定的参考块的预测块的图像数据，c）根据验证结果修改运动数据，以及d）生成 来自当前块的运动数据的当前块的最终预测块。

    METHODS AND DEVICE FOR RECONSTRUCTING AND CODING AN IMAGE BLOCK
    29.
    发明申请
    METHODS AND DEVICE FOR RECONSTRUCTING AND CODING AN IMAGE BLOCK 审中-公开
    用于重构和编码图像块的方法和装置

    公开(公告)号：US20140056348A1

    公开(公告)日：2014-02-27

    申请号：US14004732

    申请日：2012-03-08

    申请人： Edouard Francois ,  Dominique Thoreau ,  Fabien Racape ,  Aurelie Martin

    发明人： Edouard Francois ,  Dominique Thoreau ,  Fabien Racape ,  Aurelie Martin

    IPC分类号： H04N7/32

    CPC分类号： H04N19/105 ,  H04N19/137 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/19 ,  H04N19/50 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70

    摘要： A method for reconstruction of a current block predicted from at least one reference block is described. The method comprises the steps for: decoding at least one weighted prediction parameter, called an explicit parameter, from coded data, calculating at least one weighted prediction parameter, called an implicit parameter, from a first causal neighbouring area of the current block and a first corresponding neighbouring area of the reference block, calculating a first distortion resulting from the prediction of a second causal neighbouring area of the current block with the explicit parameter and a second distortion resulting from the prediction of said second causal neighbouring area with the implicit parameter, comparing the first and second distortions, selecting a parameter between the explicit parameter and the implicit parameter according to the result of the comparison, and reconstructing the current block using the selected parameter.

    摘要翻译： 描述了从至少一个参考块预测的当前块的重构方法。 该方法包括以下步骤：从编码数据中解码至少一个称为显式参数的加权预测参数，从当前块的第一因果相邻区域中计算至少一个称为隐式参数的加权预测参数，以及第一 计算由所述显式参数对当前块的第二因果相邻区域的预测产生的第一失真，以及由所述隐式参数对所述第二因果相邻区域的预测产生的第二失真，比较 第一和第二失真，根据比较结果选择显式参数和隐式参数之间的参数，并使用所选参数重构当前块。