公开(公告)号：US20120106646A1

公开(公告)日：2012-05-03

申请号：US13380386

申请日：2010-06-17

Applicant: Nathalie Cammas ,  Isabelle Amonou ,  Stephane Pateux

Inventor： Nathalie Cammas ,  Isabelle Amonou ,  Stephane Pateux

IPC: H04N7/50 ,  H04N7/26

CPC classification number: H04N19/543 ,  H04N19/109 ,  H04N19/139 ,  H04N19/17 ,  H04N19/176 ,  H04N19/52

Abstract: A method and apparatus are provided for encoding an image sequence. The method includes the following steps, for at least one group of blocks of an image: determining, for each block, at least one parameter characteristic of said block; forming at least one cluster including the blocks having at least one similar characteristic parameter; encoding the blocks of said cluster, the similar characteristic parameter(s) associated with said cluster being encoded only once; encoding the blocks that do not belong to any cluster, the characteristic parameter(s) associated with each of said blocks not being encoded; generating a data stream; and inserting into said stream, at least one piece of information on the partitioning of the group(s), in order to identify the outer block(s) within a group.

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：针对图像的至少一组块：为每个块确定所述块的至少一个参数特性; 形成包括具有至少一个相似特征参数的块的至少一个簇; 编码所述簇的块，与所述簇相关联的类似特征参数仅被编码一次; 对不属于任何集群的块进行编码，与未被编码的每个所述块相关联的特征参数; 生成数据流; 以及将关于所述组的划分的至少一条信息插入到所述流中，以便识别组内的外部块。

公开(公告)号：US20110007977A1

公开(公告)日：2011-01-13

申请号：US12918963

申请日：2009-02-20

Applicant: Isabelle Amonou ,  Stephane Pateux ,  Nathalie Cammas ,  Sylvain Kervadec

Inventor： Isabelle Amonou ,  Stephane Pateux ,  Nathalie Cammas ,  Sylvain Kervadec

IPC: G06K9/36

CPC classification number: H04N19/126 ,  H04N19/103 ,  H04N19/139 ,  H04N19/14 ,  H04N19/147 ,  H04N19/17 ,  H04N19/176 ,  H04N19/177 ,  H04N19/182 ,  H04N19/196 ,  H04N19/20 ,  H04N19/37 ,  H04N19/46 ,  H04N19/463 ,  H04N19/503 ,  H04N19/527 ,  H04N19/61 ,  H04N19/70

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。

公开(公告)号：US20100322529A1

公开(公告)日：2010-12-23

申请号：US12373286

申请日：2007-07-06

Applicant: Isabelle Amonou ,  Stephane Pateux ,  Stephane Kervadec ,  Nathalie Cammas

Inventor： Isabelle Amonou ,  Stephane Pateux ,  Stephane Kervadec ,  Nathalie Cammas

IPC: G06K9/36 ,  G06K9/46

CPC classification number: H04N21/234327 ,  H04N21/2662

Abstract: 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, characterized in that said method comprises at least 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 said associated parameter for at least one block of said at least one group of blocks a second value, so that for said at least one bloc, the first and second values given for said parameter can be combined during decoding in order to provide a value assigned to said parameter.

Abstract translation: 编码图像或图像序列的方法，其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，其特征在于，所述方法包括： 对于所述至少一组块的至少一个以下步骤，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）第二编码 用于为所述至少一组块的至少一个块给出所述相关联的参数为第二值，使得对于所述至少一个块，在解码期间可以组合针对所述参数给出的第一和第二值，以便提供 分配给所述参数的值。

公开(公告)号：US20080291996A1

公开(公告)日：2008-11-27

申请号：US11571950

申请日：2005-06-28

Applicant: Stephane Pateux ,  Sylvain Kervadec ,  Isabelle Amonou

Inventor： Stephane Pateux ,  Sylvain Kervadec ,  Isabelle Amonou

IPC: H04B1/66

CPC classification number: H04N19/615 ,  H04N19/13 ,  H04N19/132 ,  H04N19/154 ,  H04N19/61 ,  H04N19/63 ,  H04N19/64

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。