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    METHODS AND APPARATUSES OF SAMPLE ADAPTIVE OFFSET PROCESSING FOR VIDEO CODING
    62.
    发明申请
    METHODS AND APPARATUSES OF SAMPLE ADAPTIVE OFFSET PROCESSING FOR VIDEO CODING 审中-公开

    公开(公告)号：US20190289294A1

    公开(公告)日：2019-09-19

    申请号：US16334915

    申请日：2017-09-19

    Applicant: MEDIATEK INC.

    Inventor： Chih-Wei HSU ,  Yu-Wen HUANG

    IPC: H04N19/132 ,  H04N19/46 ,  H04N19/147 ,  H04N19/13 ,  H04N19/186 ,  H04N19/176

    Abstract: A video coding system determines a Sample Adaptive Offset (SAO) type for a current reconstructed block, and determines SAO offsets for the current reconstructed block and checks if all SAO offsets are zeros except for a last SAO offset if the SAO type is Edge Offset (EO) or Band Offset (BO). A new value for the last SAO offset is derived at an encoding end or an original value for the last SAO offset is derived at a decoding end if all SAO offsets except for the last SAO offset are zeros. The SAO offsets are used for applying SAO processing to the current block and the current block is encoded or decoded. The original value for the last SAO offset is used in SAO processing and the new value for the last SAO offset is signaled in a video bitstream.

    VARIABLE AFFINE MERGE CANDIDATES FOR VIDEO CODING
    63.
    发明申请
    VARIABLE AFFINE MERGE CANDIDATES FOR VIDEO CODING 审中-公开

    公开(公告)号：US20190222834A1

    公开(公告)日：2019-07-18

    申请号：US16245967

    申请日：2019-01-11

    Applicant: MEDIATEK INC.

    Inventor： Chun-Chia CHEN ,  Chih-Wei HSU ,  Ching-Yeh CHEN

    IPC: H04N19/105 ,  H04N19/122 ,  H04N19/149 ,  H04N19/176

    CPC classification number: H04N19/105 ,  H04N19/122 ,  H04N19/149 ,  H04N19/176

    Abstract: Aspects of the disclosure provide a method for video coding. The method includes determining a set of affine merge candidate (AMC) positions of a set of AMC blocks coded using affine motion models for a current block in a current picture. The set of AMC blocks includes at least one of: a set of AMC side blocks that are spatially neighboring blocks located on one or more sides of the current block in the current picture and an AMC temporal block in a reference picture of the current block. The current block is predicted from the reference picture using a merge mode. The method includes generating a set of affine merge candidates for the current block corresponding to the set of AMC blocks, and constructing a merge candidate list for the current block including the set of affine merge candidates.

    Method and Apparatus of Candidate Skipping for Predictor Refinement in Video Coding
    65.
    发明申请
    Method and Apparatus of Candidate Skipping for Predictor Refinement in Video Coding 审中-公开

    公开(公告)号：US20180199057A1

    公开(公告)日：2018-07-12

    申请号：US15868995

    申请日：2018-01-11

    Applicant: MEDIATEK INC.

    Inventor： Tzu-Der CHUANG ,  Chih-Wei HSU ,  Ching-Yeh CHEN

    IPC: H04N19/533 ,  H04N19/577 ,  H04N19/573

    CPC classification number: H04N19/533 ,  H04N19/523 ,  H04N19/55 ,  H04N19/56 ,  H04N19/573 ,  H04N19/577

    Abstract: Method and apparatus of using motion refinement with reduced bandwidth are disclosed. According to one method, a predictor refinement process is applied to generate motion refinement for the current block by searching among multiple motion vector candidates using reference data comprising the target motion-compensated reference block, where if a target motion vector candidate requires target reference data from the target motion-compensated reference block being outside the valid reference block, the target motion vector candidate is excluded from said searching the multiple motion vector candidates or a replacement motion vector candidate closer to a center of the corresponding block of the current block is used as a replacement for the target motion vector candidate. In another method, if a target motion vector candidate belongs to one or more target fractional-pixel locations, a reduced tap-length interpolation filter is applied to the target motion vector candidate.

    METHOD AND APPARATUS OF VIDEO CODING
    67.
    发明申请
    METHOD AND APPARATUS OF VIDEO CODING 审中-公开

    公开(公告)号：US20180131969A1

    公开(公告)日：2018-05-10

    申请号：US15806632

    申请日：2017-11-08

    Applicant: MEDIATEK INC.

    Inventor： Han HUANG ,  Shan LIU ,  Chih-Wei HSU

    IPC: H04N19/86 ,  H04N19/176 ,  H04N19/117 ,  H04N19/196 ,  H04N19/167 ,  H04N19/105

    Abstract: Aspects of the disclosure provide a method of video coding includes receiving input data associated with a first block and a second block of an image frame. The method further includes identifying a reference size and performing a deblocking process if it is determined that the deblocking process is to be performed. The preforming the deblocking process may include processing pixels adjacent to the block boundary using a first set of deblocking filter settings if a first block size of the first block and a second block size of the second block are greater than the reference size, and processing the pixels using a second set of deblocking filter settings if the first block size or the second block size is not greater than the reference size.

    METHOD AND APPARATUS FOR LOOP FILTERING
    70.
    发明申请
    METHOD AND APPARATUS FOR LOOP FILTERING 审中-公开
    环路滤波的方法和装置

    公开(公告)号：US20150326886A1

    公开(公告)日：2015-11-12

    申请号：US14348668

    申请日：2012-10-10

    Applicant: MediaTek Inc.

    Inventor： Yi-Hau CHEN ,  Kun-Bin LEE ,  Chi-Cheng JU ,  Yu-Wen HUANG ,  Shaw-Min LEI ,  Chih-Ming FU ,  Ching-Yeh CHEN ,  Chia-Yang TSAI ,  Chih-Wei HSU

    IPC: H04N19/82 ,  H04N19/61 ,  H04N19/176 ,  H04N19/107 ,  H04N19/117

    CPC classification number: H04N19/82 ,  H04N19/107 ,  H04N19/117 ,  H04N19/176 ,  H04N19/426 ,  H04N19/436 ,  H04N19/61

    Abstract: A method and apparatus for loop processing of reconstructed video in an encoder system are disclosed. The loop processing comprises an in-loop filter and one or more adaptive filters. The filter parameters for the adaptive filter are derived from the pre-in-loop video data so that the adaptive filter processing can be applied to the in-loop processed video data without the need of waiting for completion of the in-loop filter processing for a picture or an image unit. In another embodiment, two adaptive filters derive their respective adaptive filter parameters based on the same pre-in-loop video data. In yet another embodiment, a moving window is used for image-unit-based coding system incorporating in-loop filter and one or more adaptive filters. The in-loop filter and the adaptive filter are applied to a moving window of pre-in-loop video data comprising one or more sub-regions from corresponding one or more image units.

    Abstract translation: 公开了一种用于编码器系统中的重建视频的循环处理的方法和装置。 环路处理包括一个环路滤波器和一个或多个自适应滤波器。 用于自适应滤波器的滤波器参数是从循环前视频数据导出的，使得自适应滤波处理可以应用于环路内处理的视频数据，而不需要等待完成环路滤波处理 图片或图像单位。 在另一个实施例中，两个自适应滤波器基于相同的预循环视频数据导出它们各自的自适应滤波器参数。 在另一个实施例中，移动窗口用于并入基于循环滤波器和一个或多个自适应滤波器的基于图像单元的编码系统。 环路滤波器和自适应滤波器被应用到包括来自相应的一个或多个图像单元的一个或多个子区域的预循环视频数据的移动窗口。

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