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    VIDEO PROCESSING APPARATUS USING ONE OR BOTH OF REFERENCE FRAME RE-ROTATION AND CONTENT-ORIENTED ROTATION SELECTION AND ASSOCIATED VIDEO PROCESSING METHOD
    21.
    发明申请
    VIDEO PROCESSING APPARATUS USING ONE OR BOTH OF REFERENCE FRAME RE-ROTATION AND CONTENT-ORIENTED ROTATION SELECTION AND ASSOCIATED VIDEO PROCESSING METHOD 审中-公开

    公开(公告)号：US20180262774A1

    公开(公告)日：2018-09-13

    申请号：US15911185

    申请日：2018-03-05

    Applicant: MEDIATEK INC.

    Inventor： Hung-Chih Lin ,  Jian-Liang Lin ,  Shen-Kai Chang

    IPC: H04N19/597 ,  G06T3/60 ,  H04N19/172

    CPC classification number: H04N19/597 ,  G06T3/60 ,  G06T2200/04 ,  H04N19/172 ,  H04N19/577

    Abstract: A video processing method includes: receiving a first input frame with a 360-degree Virtual Reality (360 VR) projection format; applying first content-oriented rotation to the first input frame to generate a first content-rotated frame; encoding the first content-rotated frame to generate a first part of a bitstream, including generating a first reconstructed frame and storing a reference frame derived from the first reconstructed frame; receiving a second input frame with the 360 VR projection format; applying second content-oriented rotation to the second input frame to generate a second content-rotated frame; configuring content re-rotation according to the first content-oriented rotation and the second content-oriented rotation; applying the content re-rotation to the reference frame to generate a re-rotated reference frame; and encoding, by a video encoder, the second content-rotated frame to generate a second part of the bitstream, including using the re-rotated reference frame for predictive coding of the second content-rotated frame.

    METHOD AND APPARATUS OF MOTION INFORMATION MANAGEMENT IN VIDEO CODING
    26.
    发明申请
    METHOD AND APPARATUS OF MOTION INFORMATION MANAGEMENT IN VIDEO CODING 审中-公开
    视频编码中运动信息管理的方法与装置

    公开(公告)号：US20150281733A1

    公开(公告)日：2015-10-01

    申请号：US14433303

    申请日：2013-08-29

    Applicant: MEDIATEK INC.

    Inventor： Chih-Ming Fu ,  Yi-Wen Chen ,  Jian-Liang Lin ,  Yu-Wen Huang

    IPC: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/513 ,  H04N19/187

    CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/187 ,  H04N19/30 ,  H04N19/513 ,  H04N19/70

    Abstract: A method and apparatus for three-dimensional and scalable video coding are disclosed. Embodiments according to the present invention determine a motion information set associated with the video data, wherein at least part of the motion information set is made available or unavailable conditionally depending on the video data type. The video data type may correspond to depth data, texture data, a view associated with the video data in three-dimensional video coding, or a layer associated with the video data in scalable video coding. The motion information set is then provided for coding or decoding of the video data, other video data, or both. At least a flag may be used to indicate whether part of the motion information set is available or unavailable. Alternatively, a coding profile for the video data may be used to determine whether the motion information is available or not based on the video data type.

    Abstract translation: 公开了一种用于三维和可缩放视频编码的方法和装置。 根据本发明的实施例确定与视频数据相关联的运动信息集，其中运动信息集的至少一部分根据视频数据类型有条件地可用或不可用。 视频数据类型可以对应于深度数据，纹理数据，与三维视频编码中的视频数据相关联的视图，或者与可分级视频编码中的视频数据相关联的层。 然后提供运动信息集用于视频数据，其他视频数据或两者的编码或解码。 至少可以使用标志来指示运动信息集的部分是可用还是不可用。 或者，视频数据的编码简档可以用于基于视频数据类型来确定运动信息是否可用。

    Method of Binarization and Context Adaptive Binary Arithmetic Coding of Depth Coding Syntax
    27.
    发明申请
    Method of Binarization and Context Adaptive Binary Arithmetic Coding of Depth Coding Syntax 审中-公开
    二值化和上下文的方法深度编码语法的自适应二进制算术编码

    公开(公告)号：US20150189321A1

    公开(公告)日：2015-07-02

    申请号：US14538200

    申请日：2014-11-11

    Applicant: MEDIATEK INC.

    Inventor： Yi-Wen Chen ,  Jian-Liang Lin ,  Tzu-Der Chuang ,  Yu-Lin Chang

    IPC: H04N19/597 ,  H04N19/13 ,  H04N19/176 ,  H04N19/70 ,  H04N19/139

    CPC classification number: H04N19/597 ,  H04N19/70 ,  H04N19/91

    Abstract: A method for improved binarization and entropy coding process of syntax related to depth coding is disclosed. In one embodiment, a first value associated with the current depth block is bypass coded, where the first value corresponds to the residual magnitude of a block coded by an Intra or Inter SDC mode, the delta magnitude of a block coded by a DMM mode, or a residual sign of a block coded by the Inter SDC mode. In another embodiment, a first bin of a binary codeword is coded using arithmetic coding and the rest bins of the binary codeword are coded using bypass coding. The codeword corresponds to the residual magnitude of a block coded by the Intra or Inter SDC mode, or the delta DC magnitude of a block coded by the DMM mode.

    Abstract translation: 公开了一种用于改进与深度编码相关的语法的二值化和熵编码处理的方法。 在一个实施例中，与当前深度块相关联的第一值被旁路编码，其中第一值对应于通过内部或内部SDC模式编码的块的剩余幅度，由DMM模式编码的块的增量幅度， 或通过Inter SDC模式编码的块的残余符号。 在另一个实施例中，使用算术编码对二进制码字的第一个二进制编码，并且使用旁路编码对二进制码字的其余的存储体进行编码。 码字对应于通过帧间或间隔SDC模式编码的块的剩余幅度或由DMM模式编码的块的增量DC幅度。

    METHOD AND APPARATUS FOR PROCESSING PROJECTION-BASED FRAME HAVING PROJECTION FACES PACKED IN HEMISPHERE CUBEMAP PROJECTION LAYOUT WITH FACE PACKING CONSTRAINTS
    30.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING PROJECTION-BASED FRAME HAVING PROJECTION FACES PACKED IN HEMISPHERE CUBEMAP PROJECTION LAYOUT WITH FACE PACKING CONSTRAINTS 有权

    公开(公告)号：US20210392374A1

    公开(公告)日：2021-12-16

    申请号：US17177148

    申请日：2021-02-16

    Applicant: MEDIATEK INC.

    Inventor： Ya-Hsuan Lee ,  Jian-Liang Lin

    IPC: H04N19/597 ,  H04N19/70

    Abstract: A video processing method includes a step of receiving a bitstream, and a step of decoding a part of the bitstream to generate a decoded frame, including parsing a plurality of syntax elements from the bitstream. The decoded frame is a projection-based frame that includes a plurality of projection faces packed at a plurality of face positions with different position indexes in a hemisphere cubemap projection layout. A portion of a 360-degree content of a sphere is mapped to the plurality of projection faces via hemisphere cubemap projection. Values of the plurality of syntax elements are indicative of face indexes of the plurality of projection faces packed at the plurality of face positions, respectively, and are constrained to meet a requirement of bitstream conformance.

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