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    Image decoding device and method
    31.
    发明授权
    Image decoding device and method 有权

    公开(公告)号：US11218710B2

    公开(公告)日：2022-01-04

    申请号：US14902761

    申请日：2014-07-09

    Applicant: SONY CORPORATION

    Inventor： Shinobu Hattori ,  Ohji Nakagami ,  Mitsuhiro Hirabayashi

    IPC: H04N19/33 ,  H04N19/43 ,  H04N19/70 ,  H04N21/462 ,  H04N21/61

    Abstract: The present disclosure relates to an image decoding device capable of recognizing performance necessary for decoding more accurately and a method. Coded data of image data and decoding load definition information for defining a magnitude of a load of a decoding process of a partial region of an image of the image data are acquired; decoding of the acquired coded data is controlled based on the acquired decoding load definition information; and the acquired coded data is decoded according to the controlling. The present disclosure can be applied to an information processing device such as an image coding device that scalably codes image data or an image decoding device that decodes encoded data obtained by scalably coding image data.

    Point cloud coding structure
    33.
    发明授权
    Point cloud coding structure 有权

    公开(公告)号：US11095900B2

    公开(公告)日：2021-08-17

    申请号：US16408124

    申请日：2019-05-09

    Applicant: SONY CORPORATION

    Inventor： Danillo Graziosi ,  Ohji Nakagami ,  Ali Tabatabai

    IPC: H04N19/159 ,  G06K9/62 ,  G06T7/33 ,  G06T7/38

    Abstract: A point cloud coding structure defines a “key” point cloud frame, where all references used for predicting point cloud patches are limited to the current point cloud frame. A point cloud patch buffer is described, where the list of reference patches and their respective bounding boxes from a point cloud frame are stored to be used for prediction of patches in another frame. The list of reference patches may contain patches from the past and patches from the future, in case the coding order of point cloud frames is allowed to be different from the presentation order, and bi-directional prediction is used. A similar reference buffer list concept is able to be applied to the layers of the point cloud. A signaling method that correlates the blocks of V-PCC by signaling within the payload the reference to the ID of the block containing the higher-level information is also described.

    Image processing device and method
    35.
    发明授权
    Image processing device and method 有权

    公开(公告)号：US10448057B2

    公开(公告)日：2019-10-15

    申请号：US15962688

    申请日：2018-04-25

    Applicant: SONY CORPORATION

    Inventor： Shuo Lu ,  Ohji Nakagami

    IPC: H04N19/86 ,  H04N19/44 ,  H04N19/577 ,  H04N19/82 ,  H04N19/51 ,  H04N19/593 ,  H04N19/80 ,  H04N19/91 ,  H04N19/176 ,  H04N19/117 ,  H04N19/14

    Abstract: The present invention relates to image processing device and method which can suppress block noise. A filter strength determination unit determines the filter strength for every four lines under the control of a control unit. In other words, if a block boundary determination unit has determined to perform filtering, the filter strength determination unit determines at which strength of the strong filter or the weak filter the filtering process is performed, and outputs the determination result to a filter calculation unit. On this occasion, the filter strength determination unit uses the Bs value in the determination formula of the strong filter. For example, in the case of using the Bs value, the threshold of the determination is set in accordance with a linear function of the Bs value from the control unit. The present disclosure can be applied to, for example, an image processing device.

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