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11 条记录 (耗时 0.015 秒)

    Adaptive Motion Vector Resolution
    2.
    发明申请
    Adaptive Motion Vector Resolution 审中-公开

    公开(公告)号：US20190089975A1

    公开(公告)日：2019-03-21

    申请号：US16018550

    申请日：2018-06-26

    申请人： Futurewei Technologies, Inc.

    发明人： Shan Liu ,  Jiali Fu

    IPC分类号： H04N19/52 ,  H04N19/91 ,  H04N19/117 ,  H04N19/573 ,  H04N19/184

    摘要： A mechanism of video coding is provided. The mechanism includes determining a motion vector predictor (MVP), a horizontal motion vector difference component (MVDx), and a vertical motion vector difference component (MVDy) associated with a motion vector (MV). A horizontal MV resolution (MVR) and a vertical MVR are also determined for the MV. A horizontal component of the MVP is rounded to a precision specified by the horizontal MVR and a vertical component of the MVP is rounded to a precision specified by the vertical MVR. The MV is determined based on the MVP, the MVDx, and the MVDy. The MV is then employed to position a current block in a current frame relative to a reference block in a reference frame. A video stream including the current frame is generated for display on a screen.

    Bidirectional Weighted Intra Prediction
    3.
    发明申请
    Bidirectional Weighted Intra Prediction 审中-公开

    公开(公告)号：US20190089952A1

    公开(公告)日：2019-03-21

    申请号：US16053204

    申请日：2018-08-02

    申请人： Futurewei Technologies, Inc.

    发明人： Shan Liu ,  Jiali Fu ,  Shan Gao

    IPC分类号： H04N19/11 ,  H04N19/46

    摘要： A method of coding implemented by a decoding device. The method includes receiving a bitstream from an encoding device, parsing the bitstream to determine whether a directional prediction mode or a non-directional prediction mode is signaled, using non-directional intra prediction to generate an image when the non-directional prediction mode is signaled, parsing a distance-weighted directional intra prediction (DWDIP) flag from the bitstream when the directional prediction mode is signaled to determine whether the DWDIP flag has a first value or a second value, using distance-weighted directional intra prediction to generate the image when the DWDIP flag has the first value, using directional intra prediction to generate the image when the DWDIP flag has the second value, and displaying, on a display of an electronic device, the image generated.

    BIDIRECTIONAL INTRA PREDICTION
    7.
    发明申请
    BIDIRECTIONAL INTRA PREDICTION 审中-公开

    公开(公告)号：US20190110052A1

    公开(公告)日：2019-04-11

    申请号：US16029139

    申请日：2018-07-06

    申请人： Futurewei Technologies, Inc.

    发明人： Shan Liu ,  Jiali Fu

    IPC分类号： H04N19/159 ,  H04N19/182 ,  H04N19/176 ,  H04N19/124 ,  H04N19/577

    摘要： A method of coding implemented by a decoding device. The method includes determining, by the decoding device, a prediction direction for a current block; calculating, by the decoding device, an interpolated bottom right pixel; calculating, by the decoding device, interpolated bottom boundary pixels and interpolated right boundary pixels based on the interpolated bottom right pixel; predicting, by the decoding device, a pixel in the current block using a weighted average of two boundary pixels along the prediction direction, the two boundary pixels including at least one of the interpolated bottom boundary pixels or one of the interpolated right boundary pixels; and displaying, on a display of an electronic device, an image generated using the pixel that was predicted.

    Block partition structure in video compression
    9.
    发明授权
    Block partition structure in video compression 有权

    公开(公告)号：US10666943B2

    公开(公告)日：2020-05-26

    申请号：US16128167

    申请日：2018-09-11

    申请人： Futurewei Technologies, Inc.

    发明人： Jiali Fu ,  Shan Liu ,  Shan Gao

    IPC分类号： H04N19/119 ,  H04N19/146 ,  H04N19/176 ,  H04N19/44 ,  H04N19/70

    摘要： A method of coding implemented by a decoding device. The method includes receiving a bitstream from an encoding device, the bitstream containing a minimum block width and a minimum block height, partitioning a current block into sub-blocks until one of the sub-blocks reaches the minimum block width or the minimum block height, determining pixel values for the one of the sub-blocks that has reached the minimum block width or the minimum block height, and displaying, on a display of an electronic device, an image generated using the pixel values that were determined.

    Noise Suppression Filter
    10.
    发明申请
    Noise Suppression Filter 审中-公开

    公开(公告)号：US20190020870A9

    公开(公告)日：2019-01-17

    申请号：US15937256

    申请日：2018-03-27

    申请人： Futurewei Technologies, Inc.

    发明人： Shan Liu ,  Roman Chernyak ,  Jiali Fu ,  Victor Stepin ,  Xiang Ma ,  Igor Pasechnik ,  Sergey Ikonin

    IPC分类号： H04N19/117 ,  H04N19/96 ,  H04N19/70 ,  H04N19/174 ,  H04N19/186

    摘要： A mechanism of video coding is provided. The mechanism includes generating a reconstructed image from an encoded video stream. The reconstructed image is filtered to create a filtered image. The filtering includes applying a noise suppression filter to the reconstructed image. The noise suppression filter may be applied immediately prior to applying a deblocking filter to the reconstructed image, between a deblocking filter and a sample adaptive offset (SAO) filter, between the SAO filter and an adaptive loop filter, or after the adaptive loop filter. The filtered image is then stored in a picture buffer in memory for use in encoding or for output to a display in decoding.