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    BOUNDARY ARTIFACT CORRECTION WITHIN VIDEO UNITS
    12.
    发明授权
    BOUNDARY ARTIFACT CORRECTION WITHIN VIDEO UNITS 有权

    公开(公告)号：EP2292004B1

    公开(公告)日：2018-09-05

    申请号：EP09735528.3

    申请日：2009-04-22

    申请人： QUALCOMM Incorporated

    发明人： DANE, Gokce ,  TENG, Chia-yuan

    IPC分类号： H04N19/61 ,  H04N19/132 ,  H04N19/44 ,  H04N19/55 ,  H04N19/587 ,  H04N19/577

    CPC分类号： H04N19/577 ,  H04N7/0127 ,  H04N19/132 ,  H04N19/44 ,  H04N19/55 ,  H04N19/587 ,  H04N19/61 ,  H04N19/86

    摘要： This disclosure describes techniques for correcting artifacts that occur along a boundary of a substitute video unit generated using video unit substitution, e.g., motion-compensated video unit interpolation or extrapolation. In accordance with the techniques described in this disclosure, a frame substitution unit identifies first locations within a substitute video unit that correspond with a boundary that exists within a reference video unit and should exist within the substitute video unit, and corrects boundary artifacts in the first locations using a first boundary artifact correction technique. The frame substitution unit also identifies second locations within the substitute video unit that correspond with a boundary that exists within the substitute video unit and does not exist within the reference video unit and corrects boundary artifacts in the second locations using a second boundary artifact correction technique.

    METHOD AND APPARATUS FOR MOTION VECTOR ESTIMATION
    13.
    发明授权
    METHOD AND APPARATUS FOR MOTION VECTOR ESTIMATION 有权

    公开(公告)号：EP1393572B1

    公开(公告)日：2018-06-13

    申请号：EP02724504.2

    申请日：2002-04-18

    申请人： NXP B.V.

    发明人： BELLERS, Erwin, B.

    IPC分类号： H04N19/55

    CPC分类号： H04N19/51

    摘要： A method to enhance motion estimation is provided. The method includes providing a motion estimator, obtaining at least two candidate motion vectors from the motion estimator and applying an error function having a penalty that depends on the position and size of the candidate motion vectors. A device for recursive motion vector estimation having enhanced convergence is also provided. The device includes a vector generator and a best vector selector. The best vector selector comprises means to evaluate candidate motion vectors by applying an error function having at least a penalty that depends on the position and size of the candidate motion vectors.

    METHOD AND APPARATUS FOR IMAGE PROCESSING
    14.
    发明公开
    METHOD AND APPARATUS FOR IMAGE PROCESSING 审中-公开
    VERFAHREN UND VORRICHTUNG ZUR BILDVERARBEITUNG

    公开(公告)号：EP1146746A4

    公开(公告)日：2003-11-05

    申请号：EP99959794

    申请日：1999-12-13

    申请人： MATSUSHITA ELECTRIC IND CO LTD

    发明人： KOHASHI YASUO ,  MORIIWA TOSHIHIRO ,  KUROMARU SHUNICHI ,  NAKAJIMA HIROMASA ,  YONEZAWA TOMONORI ,  ARITA MIKI

    IPC分类号： H04N19/00 ,  H04N19/423 ,  H04N19/426 ,  H04N19/50 ,  H04N19/55 ,  H04N19/57 ,  H04N7/24 ,  H04N7/26 ,  H04N7/50

    CPC分类号： H04N19/43 ,  H04N19/423 ,  H04N19/51 ,  H04N19/61

    摘要： An image processing apparatus transfers data for encoding in an unrestricted motion vector mode without an increase in memory capacity while reducing the processor load. The image processing apparatus comprises a two-dimensional address generator (107) for producing the access address for external memory (102), and an address controller (109) for controlling the horizontal and vertical positions of an expanded logical space and producing an enable signal for the two-dimensional address generator (107). The two-dimensional address generator (107) and the address controller (109) are controlled to cooperate so that addresses for access outside the effective image data area may become addresses of pixel data within the border of the effective image data area so as to reduce the expansion area in the external memory (102).

    摘要翻译： 图像处理装置在不减小处理器负荷的情况下在不增加存储器容量的情况下在非限制运动矢量模式下传输用于编码的数据。 该图像处理装置包括用于产生用于外部存储器（102）的访问地址的二维地址产生器（107）和用于控制扩展的逻辑空间的水平和垂直位置并产生使能信号的地址控制器（109） 用于二维地址生成器（107）。 二维地址生成器（107）和地址控制器（109）被控制为协作，使得用于在有效图像数据区域外访问的地址可以变为有效图像数据区域的边界内的像素数据的地址，以便减少 外部存储器（102）中的扩展区域。

    SUB-BLOCK MV INHERITANCE BETWEEN COLOR COMPONENTS
    17.
    发明公开
    SUB-BLOCK MV INHERITANCE BETWEEN COLOR COMPONENTS 审中-公开

    公开(公告)号：EP4307671A2

    公开(公告)日：2024-01-17

    申请号：EP23213827.1

    申请日：2019-06-21

    申请人： Beijing Bytedance Network Technology Co., Ltd. ,  ByteDance Inc.

    发明人： The designation of the inventor has not yet been filed

    IPC分类号： H04N19/55

    摘要： Devices, systems and methods for sub-block based prediction are described. In a representative aspect, a method for video processing includes partitioning a first component of a current video block into a first set of sub-blocks and partitioning a second component of the current video block into a second set of sub-blocks. A sub-block of the second component corresponds to one or more sub-blocks of the first component. The method also includes deriving, based on a color format of the current video block, motion vectors for a sub-block of the second component based on motion vectors for one or more corresponding sub-blocks of the first color component.