中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

34 records (took 0.023 seconds)

    Method And Device For Densifying A Motion Field
    21.
    发明申请
    Method And Device For Densifying A Motion Field 审中-公开
    一种运动场强化方法和装置

    公开(公告)号：US20080117983A1

    公开(公告)日：2008-05-22

    申请号：US11571964

    申请日：2006-06-28

    Applicant: Stephane Pateux ,  Sylvain Kervadec ,  Isabelle Amonou

    Inventor： Stephane Pateux ,  Sylvain Kervadec ,  Isabelle Amonou

    IPC: H04N7/12

    CPC classification number: H04N19/615 ,  H04N19/13 ,  H04N19/513 ,  H04N19/553 ,  H04N19/61 ,  H04N19/63

    Abstract: A motion field between a destination image and a source image is densified on the basis of the motion field between the source image and the destination image. Connections between the source image pixels or subpixels (X11, X111, X12, X121) and the destination image pixels or subpixels (B, C′, E, F) are determined. For each pixel or subpixel of the destination image connected to a pixel or subpixel of the source image, a pixel or subpixel association space (Fen) including one pixel or subpixel of the destination image is determined. Each pixel or subpixel in the association space (A, A′, B, B′, C, C′) is associated with the source image pixel (X11) connected to the pixel or subpixel to form a dense motion field between the destination and source images.

    Abstract translation: 基于源图像和目的图像之间的运动场，目的地图像和源图像之间的运动场被致密化。 源图像像素或子像素（X 11，X 111，X 12，X 121）和目的图像像素或子像素（B，C'，E，F）之间的连接被确定。 对于连接到源图像的像素或子像素的目标图像的每个像素或子像素，确定包括目标图像的一个像素或子像素的像素或子像素关联空间（Fen）。 关联空间（A，A'，B，B'，C，C'）中的每个像素或子像素与连接到像素或子像素的源图像像素（X 11）相关联，以在目的地之间形成密集运动场 和源图像。

    Method Of Estimating Motion In Sequences Of Moving Images Using Deformable Meshes, Video Coder And Decoder Implementing The Method
    22.
    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

    Applicant: Nathalie Cammas ,  Stephane Pateux ,  Nathalie Laurent-Chatenet

    Inventor： Nathalie Cammas ,  Stephane Pateux ,  Nathalie Laurent-Chatenet

    IPC: H04N7/26

    CPC classification number: G06T17/20 ,  G06T7/215 ,  G06T7/246 ,  H04N19/53 ,  H04N19/54 ,  H04N19/553

    Abstract: 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.

    Abstract translation: 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。

    Encoding and decoding an image or image sequence divided into pixel blocks
    26.
    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：US08971648B2

    公开(公告)日：2015-03-03

    申请号：US14291929

    申请日：2014-05-30

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

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

    IPC: G06K9/36 ,  G06K9/46

    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。

    METHODS AND DEVICES FOR ENCODING AND DECODING AT LEAST ONE IMAGE IMPLEMENTING A SELECTION OF PIXELS TO BE PREDICTED, AND CORRESPONDING COMPUTER PROGRAM
    29.
    发明申请
    METHODS AND DEVICES FOR ENCODING AND DECODING AT LEAST ONE IMAGE IMPLEMENTING A SELECTION OF PIXELS TO BE PREDICTED, AND CORRESPONDING COMPUTER PROGRAM 有权
    用于编码和解码至少一个图像的方法和设备，以实现要预测的像素的选择以及对应的计算机程序

    公开(公告)号：US20130272400A1

    公开(公告)日：2013-10-17

    申请号：US13995026

    申请日：2011-12-09

    Applicant: Joel Jung ,  Jean-Marc Thiesse ,  Stephane Pateux

    Inventor： Joel Jung ,  Jean-Marc Thiesse ,  Stephane Pateux

    IPC: H04N7/32

    CPC classification number: H04N19/192 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/182 ,  H04N19/50 ,  H04N19/593 ,  H04N19/60

    Abstract: A method is provided for decoding a signal that represents at least one image. The method implements at least one iteration of the following steps, for at least one block of the image to be decoded: determining at least one selection parameter from at least one characteristic associated with at least one reference pixel of a reference region of the image, the reference region including at least one previously encoded/decoded block and/or at least one pixel predicted in a preceding iteration; selecting at least one pixel to be predicted in the block to be decoded from the at least one selection parameter; and for at least one selected pixel to be predicted, referred to as an anchor pixel, predicting the anchor pixel from at least one reference pixel, thereby outputting a predicted pixel.

    Abstract translation: 提供了一种用于对表示至少一个图像的信号进行解码的方法。 该方法对于要解码的图像的至少一个块实现以下步骤的至少一个迭代：从与图像的参考区域的至少一个参考像素相关联的至少一个特征确定至少一个选择参数， 所述参考区域包括至少一个先前编码/解码块和/或在先前迭代中预测的至少一个像素; 从所述至少一个选择参数中选择待解码的块中要被预测的至少一个像素; 并且对于要被预测的至少一个被选择的像素，被称为锚点像素，从至少一个参考像素预测所述锚点像素，由此输出预测像素。

    METHODS AND DEVICES FOR ENCODING AND DECODING AN IMAGE SEQUENCE IMPLEMENTING A PREDICTION BY FORWARD MOTION COMPENSATION, CORRESPONDING STREAM AND COMPUTER PROGRAM
    30.
    发明申请
    METHODS AND DEVICES FOR ENCODING AND DECODING AN IMAGE SEQUENCE IMPLEMENTING A PREDICTION BY FORWARD MOTION COMPENSATION, CORRESPONDING STREAM AND COMPUTER PROGRAM 有权
    用于编码和解码图像序列的方法和装置，通过前向运动补偿，相关流程和计算机程序实现预测

    公开(公告)号：US20130034163A1

    公开(公告)日：2013-02-07

    申请号：US13638525

    申请日：2011-03-29

    Applicant: Isabelle Amonou ,  Stephane Pateux ,  Nathalie Cammas

    Inventor： Isabelle Amonou ,  Stephane Pateux ,  Nathalie Cammas

    IPC: H04N7/32

    CPC classification number: H04N19/583 ,  H04N19/52 ,  H04N19/553 ,  H04N19/57 ,  H04N19/61 ,  H04N19/70

    Abstract: A method and apparatus for encoding a sequence of images by predicting at least one current image by forward motion compensation from at least one reference image. Prediction implements, for at least one current block of the current image: forward projection of a block of the reference image on the current image, delivering a projected block at least partially overlapping the current block; partitioning the current block delivering a sub-block at least partially overlapped by at least one projected block; and at least one iteration of the following steps for at least one overlapped sub-block: checking that the overlapped sub-block complies with a predetermined allotting criterion; with a positive check, allotting, to the overlapped sub-block, one of the projected motion vectors; and with a negative check, and so long as a predetermined minimum size is not reached for the overlapped sub-block: partitioning of the overlapped sub-block.

    Abstract translation: 一种用于通过从至少一个参考图像的前向运动补偿预测至少一个当前图像来对一系列图像进行编码的方法和装置。 对于当前图像的至少一个当前块，预测实现：参考图像的块在当前图像上的向前投影，递送与当前块至少部分重叠的投影块; 分割当前块，其传送至少部分地被至少一个投影块重叠的子块; 以及对于至少一个重叠子块的以下步骤的至少一次迭代：检查所述重叠子块是否符合预定的分配标准; 对重叠的子块进行正检查，分配投影运动矢量之一; 并且进行负检查，并且只要对于重叠子块不达到预定的最小尺寸：重叠子块的划分。

Patent Agency Ranking