公开(公告)号：US08285064B2

公开(公告)日：2012-10-09

申请号：US12452694

申请日：2008-07-15

申请人： Julien Haddad ,  Dominique Thoreau ,  Philippe Salmon ,  Xavier Castellan ,  Christophe Chevance

发明人： Julien Haddad ,  Dominique Thoreau ,  Philippe Salmon ,  Xavier Castellan ,  Christophe Chevance

IPC分类号： G06K9/36

CPC分类号： H04N19/895 ,  H04N19/44 ,  H04N19/48 ,  H04N19/61 ,  H04N19/80 ,  H04N19/86

摘要： The invention concerns a method for processing images, texture pattern blocks representative of a typical texture of the images being stored in a memory, the method comprising the following steps: transforming the pixel grey levels of a current block into a current block of frequency coefficients using a predefined transform; building up a merger block, each frequency coefficient positioned at a defined place of the merger block being equal either to the frequency coefficient positioned at the same place of the current block, or to the frequency coefficient positioned at the same place of a texture pattern block among the texture pattern blocks stored in the memory; selecting a merger block according to a predefined function (J); and replacing in the image the current block by the selected merger block. The invention also concerns an electronic device for processing the corresponding images.

摘要翻译： 本发明涉及一种用于处理图像的方法，代表存储在存储器中的图像的典型纹理的纹理图案块，该方法包括以下步骤：将当前块的像素灰度级变换成当前的频率系数块，使用 预定义的变换; 建立合并块，位于合并块的定义位置的每个频率系数等于位于当前块的相同位置处的频率系数，或者与位于纹理图案块的相同位置处的频率系数相等 存储在存储器中的纹理图形块之间; 根据预定义的功能（J）选择合并块; 并且通过所选择的合并块在图像中替换当前块。 本发明还涉及用于处理相应图像的电子设备。

公开(公告)号：US07408987B1

公开(公告)日：2008-08-05

申请号：US09786432

申请日：1999-09-06

申请人： Christophe Chevance ,  Pierre Ruellou ,  Dominique Thoreau

发明人： Christophe Chevance ,  Pierre Ruellou ,  Dominique Thoreau

IPC分类号： H04N7/18

CPC分类号： H04N19/51 ,  H04N19/513 ,  H04N19/527

摘要： The method includes segmentation of the video image into image blocks, movement estimation per image block in order to obtain a field of movement vectors. It is characterized in that it includes a stage of reassignment of a vector to a block by selecting one movement vector from among N predominant vectors belonging to the field of vectors. The applications relate to movement estimation, for example, by image-block matching.

摘要翻译： 该方法包括将视频图像分割成图像块，每个图像块的运动估计，以获得运动矢量场。 其特征在于，它包括通过从属于矢量场的N个主要矢量中选择一个运动矢量来将向量重新分配给块的阶段。 应用涉及运动估计，例如通过图像块匹配。

公开(公告)号：US06580758B1

公开(公告)日：2003-06-17

申请号：US08137189

申请日：1994-03-14

申请人： Christophe Chevance ,  Dominique Thoreau

发明人： Christophe Chevance ,  Dominique Thoreau

IPC分类号： H04N718

CPC分类号： H04N19/98 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82

摘要： A method and apparatus for differential coding of blocks of images includes coding the difference between a current block of an image to be transmitted and one of four blocks of the reconstructed current image in the closest vicinity of the current block. The device includes a differential image coding structure having a quantifier coupled to a variable-length coding device, a predictor and a device for reconstruction of the transmitted image coupled to a first image memory. The device further includes a second image memory for storing image blocks previously reconstructed in the image preceding the current image.

摘要翻译： 用于图像块的差分编码的方法和装置包括对要发送的图像的当前块与当前块最接近的重构的当前图像的四个块中的一个之间的差进行编码。 该装置包括差分图像编码结构，其具有耦合到可变长度编码装置的量化器，预测器和用于重建耦合到第一图像存储器的发射图像的装置。 该装置还包括第二图像存储器，用于存储先前在当前图像之前的图像中重构的图像块。

公开(公告)号：US20080137740A1

公开(公告)日：2008-06-12

申请号：US11982947

申请日：2007-11-06

申请人： Dominique Thoreau ,  Michel Cosmao ,  Christophe Chevance

发明人： Dominique Thoreau ,  Michel Cosmao ,  Christophe Chevance

IPC分类号： H04N7/26

CPC分类号： H04N19/112 ,  H04N19/122 ,  H04N19/176 ,  H04N19/40 ,  H04N19/48 ,  H04N19/61

摘要： The method is characterized in that, if the data relating to a first macroblock indicates that it is coded in frame prediction and field DCT mode, it comprises the following steps: determination of the second macroblock in the image which, with the first, forms a supermacroblock, each of the macroblocks having an associated MPEG2 inter-frame motion vector, V0 and V1, structuring of the macroblock in field mode and calculation of a partitioning of this supermacroblock according to the MPEG2 motion vectors V0 and V1, calculation of the motion vectors for each of the partitions according to the MPEG2 motion vectors V0 and V1.

摘要翻译： 该方法的特征在于，如果与第一宏块有关的数据指示它在帧预测和场DCT模式中被编码，则其包括以下步骤：确定图像中的第二宏块，其中第一宏块首先形成 超宏块，每个宏块具有相关联的MPEG2帧间运动向量V 0和V 1，在场模式中构造宏块并计算这个 根据MPEG2运动矢量V 0和V 1的超级宏块根据MPEG2运动矢量V 0 <0>计算每个分区的运动矢量， SUB＆gt;和V 1＆lt; 1＆gt ;.