Image coding/decoding method
    1.
    发明授权
    Image coding/decoding method 失效
    图像编码/解码方法

    公开(公告)号:US06999629B1

    公开(公告)日:2006-02-14

    申请号:US09980107

    申请日:2000-05-24

    IPC分类号: G06K9/36

    CPC分类号: H04N19/97 G06T9/001

    摘要: An image coding method for a domain corresponding to at least one portion of an image. A minimal triangular partition covering the domain is defined. A square matrix is associated with each of the source triangles by a first reversible transformation so that each matrix represents a specific source triangle. A second reversible decorrelation transformation is applied to each square matrix, resulting in transformed matrixes. The method may be used in isolation, or as a supplement to another coding of the hierarchic type. A corresponding decoding method is also provided.

    摘要翻译: 一种用于对应于图像的至少一部分的域的图像编码方法。 定义覆盖域的最小三角形分区。 通过第一可逆变换,方阵与每个源三角形相关联,使得每个矩阵表示特定的源三角形。 第二个可逆解相关变换被应用于每个方阵,导致变换矩阵。 该方法可以被隔离地使用,或者作为分层类型的另一个编码的补充。 还提供了相应的解码方法。

    Variable transformation hierarchical image coding
    2.
    发明授权
    Variable transformation hierarchical image coding 失效
    可变转换分层图像编码

    公开(公告)号:US07003169B1

    公开(公告)日:2006-02-21

    申请号:US09980108

    申请日:2000-05-22

    IPC分类号: G06K9/36

    摘要: The invention relates to a method for coding an image that is to be coded, characterized in that said method comprises the following steps: definition of a hierarchical mesh structure having at least two levels of interconnected meshing formed from mesh units which are defined by peaks; determination, for each of said mesh units, of information concerning an error between the image which is to be coded and an interpolated image obtained from the peaks of the mesh units pertaining to the level of the meshing of the mesh unit in question; termination (33) of the refinement of mesh units having error information below a first predetermined threshold; implementation of a specific coding (35) for the mesh units having error information above a second predetermined threshold; continuation (34) of the refinement of mesh units having error information above the first predetermined threshold and below the second predetermined threshold.

    摘要翻译: 本发明涉及一种用于对要编码的图像进行编码的方法,其特征在于,所述方法包括以下步骤:具有由由峰定义的网格单元形成的至少两层互连网格的分级网格结构的定义; 对于每个所述网格单元,确定关于要被编码的图像之间的误差的信息和从与所讨论的网格单元的网格的水平相关联的网格单元的峰值获得的内插图像; 具有低于第一预定阈值的错误信息的网格单元的细化的终止(33); 对具有高于第二预定阈值的错误信息的网格单元实现特定编码(35); 具有高于第一预定阈值并低于第二预定阈值的错误信息的网格单元的细化的连续(34)。

    Method Of Estimating Motion In Sequences Of Moving Images Using Deformable Meshes, Video Coder And Decoder Implementing The Method
    3.
    发明申请
    Method Of Estimating Motion In Sequences Of Moving Images Using Deformable Meshes, Video Coder And Decoder Implementing The Method 失效
    使用可变形网格,视频编码器和解码器实现移动图像序列的运动估计方法

    公开(公告)号:US20070291845A1

    公开(公告)日:2007-12-20

    申请号:US11662756

    申请日:2005-09-06

    IPC分类号: H04N7/26

    摘要: The invention concerns a method which consists in analyzing a field of motion of images, estimated by using a first mesh, to detect a faulty area in the first mesh, and in locating a rupture line in said area; then generating a second mesh including a faultless part consisting of meshes of the first mesh outside the faulty area and two sub-meshes which overlap in a region including the rupture line. Each of the two sub-meshes includes respective meshes delimited by nodes including nodes shared with the faultless part, located at the boundary of the faulty area, and additional nodes not belonging to the faultless part, the rupture line being located between the respective nodes of the two sub-meshes shared with the faultless part. Said second mesh is used to finally estimate the field of motion in the group of images concerned.

    摘要翻译: 本发明涉及一种方法,该方法包括:通过使用第一网格估计的图像的运动场,以检测第一网格中的故障区域,以及在所述区域中定位断裂线; 然后生成包括由故障区域外的第一网格的网格构成的无缺陷部分和在包括断裂线的区域中重叠的两个子网格的第二网格。 两个子网格中的每一个包括由包括位于故障区域的边界处的无故障部分共享的节点和不属于无故障部分的附加节点的节点分隔的各个网格,断裂线位于 两个子网与无故障部分共享。 所述第二网格用于最终估计相关图像组中的运动场。

    Motion estimator for coding and decoding image sequences
    5.
    发明授权
    Motion estimator for coding and decoding image sequences 失效
    用于编码和解码图像序列的运动估计器

    公开(公告)号:US07502413B2

    公开(公告)日:2009-03-10

    申请号:US10332684

    申请日:2001-07-03

    IPC分类号: H04N7/12 G06K9/36

    CPC分类号: H04N19/543 G06T7/246

    摘要: The invention relates to motion estimation and compensation between two given images represented by a polygonal mesh. It provides a solution to the problems of crowding and uncovering of mesh units when the mesh is shifted. More specifically, the invention relates to a method for the encoding of a mesh that represents an image of a moving sequence. According to the invention, such a mesh is larger in size than the image.

    摘要翻译: 本发明涉及由多边形网格表示的两个给定图像之间的运动估计和补偿。 它提供了网格移位时网格单元拥挤和展开的问题的解决方案。 更具体地,本发明涉及一种用于编码表示移动序列的图像的网格的方法。 根据本发明,这种网格的尺寸大于图像。

    Method for estimating the motion between two digital images with management of mesh overturning and corresponding coding method
    6.
    发明授权
    Method for estimating the motion between two digital images with management of mesh overturning and corresponding coding method 失效
    通过网络翻转管理和相应的编码方法估算两个数字图像之间运动的方法

    公开(公告)号:US06963605B2

    公开(公告)日:2005-11-08

    申请号:US10149330

    申请日:2000-12-07

    IPC分类号: G06T9/00 H04N7/26 H04B1/66

    CPC分类号: H04N19/186 H04N19/54

    摘要: The invention relates to a method for estimating the motion between two digital images and to the use of this method for coding images. The aim of the method is to eliminate the disturbances caused by the mesh being overturned during the motion estimation process. According to the invention, the method consists of carrying out a first motion estimation in order to identify the faulty mesh, i.e. the mesh that is overturning or is overlapping after the displacement vectors have been applied; then carrying out a second motion estimation, excluding at least said faulty mesh, in order to minimize prediction error on the remaining mesh of the model.

    摘要翻译: 本发明涉及一种用于估计两个数字图像之间的运动的方法以及使用该方法编码图像的方法。 该方法的目的是消除在运动估计过程中网格被翻转引起的干扰。 根据本发明,该方法包括执行第一运动估计,以便识别故障网格,即在施加位移矢量之后翻转或重叠的网格; 然后执行第二运动估计,排除至少所述有缺陷的网格,以便最小化模型的剩余网格上的预测误差。

    Method of estimating motion in sequences of moving images using deformable meshes, video coder and decoder implementing the method
    8.
    发明授权
    Method of estimating motion in sequences of moving images using deformable meshes, video coder and decoder implementing the method 失效
    使用可变形网格,视频编码器和解码器实现该方法的运动图像序列估计运动的方法

    公开(公告)号:US08761250B2

    公开(公告)日:2014-06-24

    申请号:US11662756

    申请日:2005-09-06

    IPC分类号: H04N11/02

    摘要: The invention concerns a method which consists in analyzing a field of motion of images, estimated by using a first mesh, to detect a faulty area in the first mesh, and in locating a rupture line in said area; then generating a second mesh including a faultless part consisting of meshes of the first mesh outside the faulty area and two sub-meshes which overlap in a region including the rupture line. Each of the two sub-meshes includes respective meshes delimited by nodes including nodes shared with the faultless part, located at the boundary of the faulty area, and additional nodes not belonging to the faultless part, the rupture line being located between the respective nodes of the two sub-meshes shared with the faultless part. Said second mesh is used to finally estimate the field of motion in the group of images concerned.

    摘要翻译: 本发明涉及一种方法,该方法包括:通过使用第一网格估计的图像的运动场,以检测第一网格中的故障区域,以及在所述区域中定位断裂线; 然后生成包括由故障区域外的第一网格的网格构成的无缺陷部分和在包括断裂线的区域中重叠的两个子网格的第二网格。 两个子网格中的每一个包括由包括位于故障区域的边界处的无故障部分共享的节点和不属于无故障部分的附加节点的节点分隔的各个网格,断裂线位于 两个子网与无故障部分共享。 所述第二网格用于最终估计相关图像组中的运动场。

    Methods and devices for encoding and decoding images using nested meshes, programme, signal and corresponding uses
    9.
    发明授权
    Methods and devices for encoding and decoding images using nested meshes, programme, signal and corresponding uses 失效
    使用嵌套网格,程序,信号和相应用途对图像进行编码和解码的方法和设备

    公开(公告)号:US07346219B2

    公开(公告)日:2008-03-18

    申请号:US10479904

    申请日:2002-06-06

    IPC分类号: G06K9/36

    CPC分类号: G06T9/001 G06T17/20 H04N19/54

    摘要: The invention concerns a method for encoding at least a source image using a hierarchical mesh defining at least two nested spaces corresponding each to a decomposition level of said meshing, which consists, at least at a decomposition level n (except the first decomposition level), in delivering only image coefficients expressed in a base of functions defined in a space orthogonal to the space corresponding to the preceding decomposition level n−1, said functions being selected so that said image coefficients enable to optimize for said decomposition level n the data already transmitted for the preceding decomposition level n−1, so as to produce a reconstructed image, representing said source image, with optimized restoration quality for said decomposition level n.

    摘要翻译: 本发明涉及一种用于使用定义至少两个对应于所述网格划分的分解级别的至少两个嵌套空间的分层网格来编码至少源图像的方法,其至少包括在分解级别n(除了第一分解级别)之外, 在仅传送在与在与先前分解级别n-1相对应的空间正交的空间中定义的函数的基础中表示的图像系数时,选择所述函数,使得所述图像系数能够对已经传输的数据的所述分解级别n进行优化 对于前述分解级别n-1,以产生表示所述源图像的重构图像,具有用于所述分解级别n的优化恢复质量。

    Refinement of a triangular mesh representing a three-dimensional object
    10.
    发明授权
    Refinement of a triangular mesh representing a three-dimensional object 有权
    改进表示三维物体的三角形网格

    公开(公告)号:US07138999B2

    公开(公告)日:2006-11-21

    申请号:US10312207

    申请日:2001-06-21

    IPC分类号: G06T15/00

    CPC分类号: G06T17/20

    摘要: The invention concerns the refinement of a triangular mesh representing a three-dimensional object (3D), said mesh consisting of an arrangement of vertices and triangular surfaces, each defined by three references to the vertices which it links, and having three edges each linking two of said vertices. The invention is characterized in that said method comprises a step which consists in selecting at least a region of interest, said mesh refinement being carried out locally on at least one region of interest.

    摘要翻译: 本发明涉及表示三维物体(3D)的三角形网格的细化,所述网格由顶点和三角形表面的排列组成,每个顶点和三角形表面由三个对其连接的顶点的引用定义,并且具有三个边缘,每个连接两个 的所述顶点。 本发明的特征在于,所述方法包括一个步骤,该步骤包括至少选择一个感兴趣区域,所述网格细化在至少一个感兴趣区域上局部进行。