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    Picture coding supporting block merging and skip mode
    231.
    发明授权
    Picture coding supporting block merging and skip mode 有权

    公开(公告)号：US12137242B2

    公开(公告)日：2024-11-05

    申请号：US18363057

    申请日：2023-08-01

    Applicant: GE VIDEO COMPRESSION, LLC

    Inventor： Heiko Schwarz ,  Heiner Kirchhoffer ,  Philipp Helle ,  Simon Oudin ,  Jan Stegemann ,  Benjamin Bross ,  Detlev Marpe ,  Thomas Wiegand

    IPC: H04N19/50 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/52 ,  H04N19/70

    Abstract: A coding efficiency increase is achieved by using a common signalization within the bitstream with regard to activation of merging and activation of the skip mode. One possible state of one or more syntax elements within the bitstream may signalize for a current sample set of a picture that the sample set is to be merged and has no prediction residual encoded and inserted into the bitstream. A common flag may signalize whether the coding parameters associated with a current sample set are to be set according to a merge candidate or to be retrieved from the bitstream, and whether the current sample set of the picture is to be reconstructed based on a prediction signal depending on the coding parameters associated with the current sample set, without any residual data, or to be reconstructed by refining the prediction signal depending on the coding parameters associated with the current sample set by means of residual data within the bitstream.

    Efficient Multi-View Coding Using Depth-Map Estimate For a Dependent View
    233.
    发明公开
    Efficient Multi-View Coding Using Depth-Map Estimate For a Dependent View 审中-公开

    公开(公告)号：US20240348764A1

    公开(公告)日：2024-10-17

    申请号：US18609882

    申请日：2024-03-19

    Applicant: GE VIDEO COMPRESSION, LLC

    Inventor： Heiko Schwarz ,  Thomas Wiegand

    IPC: H04N13/128 ,  H04N13/161 ,  H04N19/194 ,  H04N19/46 ,  H04N19/513 ,  H04N19/52 ,  H04N19/597 ,  H04N19/895

    CPC classification number: H04N13/128 ,  H04N13/161 ,  H04N19/194 ,  H04N19/46 ,  H04N19/513 ,  H04N19/52 ,  H04N19/597 ,  H04N19/895 ,  H04N2213/003

    Abstract: The usual coding order according to which the reference view is coded prior to the dependent view, and within each view, a depth map is coded subsequent to the respective picture, may be maintained and does lead to a sacrifice of efficiency in performing inter-view redundancy removal by, for example, predicting motion data of the current picture of the dependent view from motion data of the current picture of the reference view. Rather, a depth map estimate of the current picture of the dependent view is obtained by warping the depth map of the current picture of the reference view into the dependent view, thereby enabling various methods of inter-view redundancy reduction more efficiently by bridging the gap between the views. According to another aspect, the following discovery is exploited: the overhead associated with an enlarged list of motion predictor candidates for a block of a picture of a dependent view is comparatively low compared to a gain in motion vector prediction quality resulting from an adding of a motion vector candidate which is determined from an, in disparity-compensated sense, co-located block of a reference view.

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