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    Method and apparatus for response of feedback information during video call
    31.
    发明授权
    Method and apparatus for response of feedback information during video call 有权

    公开(公告)号：US10200694B2

    公开(公告)日：2019-02-05

    申请号：US15229506

    申请日：2016-08-05

    Applicant: MediaTek Inc.

    Inventor： Tung-Hsing Wu ,  Li-Heng Chen ,  Han-Liang Chou

    IPC: H04N19/164 ,  H04N19/172 ,  H04L1/00 ,  H04L12/26 ,  H04N19/159 ,  H04N19/107 ,  H04N19/15 ,  H04N19/114 ,  H04N19/65 ,  H04N19/89

    Abstract: A method and apparatus of encoding frames with a frame type structure adaptively according to a current encoding status after receiving a request for an IDR frame or receiving an indication of picture data loss are disclosed. If the check result of the current encoding status is true, the second frame type structure is the same as the first frame type structure; and if the check result of the current encoding status is false, the second frame type structure is different from the first frame type structure. Another method and apparatus of encoding frames with a reference frame structure and a frame type structure adaptively according to one or more current encoding statuses after receiving an indication of picture data loss are disclosed. The system may use two different check results to adaptively select the reference frame structure and the frame type structure.

    Method and apparatus of constrained intra block copy for coding video
    34.
    发明授权
    Method and apparatus of constrained intra block copy for coding video 有权

    公开(公告)号：US09955185B2

    公开(公告)日：2018-04-24

    申请号：US14883883

    申请日：2015-10-15

    Applicant: MediaTek Inc.

    Inventor： Tung-Hsing Wu ,  Han-Liang Chou

    IPC: H04N19/176 ,  H04N19/593 ,  H04N19/426 ,  H04N19/423

    CPC classification number: H04N19/593 ,  H04N19/176 ,  H04N19/423

    Abstract: A method of IntraBC (Intra-block copy) coding for a coding region is disclosed. Embodiments of the present invention derive an IntraBC (Intra picture block copy) predictor from a constrained previous reconstructed region so as to reduce storage requirement for the previous reconstructed data. In one embodiment, a maximum absolute vertical BV (block vector) value, MaxV_BV is determined, where MaxV_BV is smaller than a full vertical search range for the coding region. A constrained previous reconstructed region corresponding to previous reconstructed samples processed before the current block is then determined, where the constrained previous reconstructed region includes at least MaxV_MV reconstructed samples in vertical direction above the current block and excludes at least one row of reconstructed samples for the current block with a vertical distance larger than MaxV_MV. Each coding block may correspond to a prediction unit (PU) or a coding unit (CU).

    Method and Apparatus for Cross Color Space Mode Decision
    36.
    发明申请
    Method and Apparatus for Cross Color Space Mode Decision 审中-公开

    公开(公告)号：US20170105012A1

    公开(公告)日：2017-04-13

    申请号：US15221606

    申请日：2016-07-28

    Applicant: MEDIATEK INC.

    Inventor： Tung-Hsing Wu ,  Li-Heng Chen ,  Han-Liang Chou

    IPC: H04N19/186 ,  H04N19/103 ,  H04N19/154 ,  H04N19/176

    CPC classification number: H04N19/103 ,  H04N19/147 ,  H04N19/176

    Abstract: A method and apparatus of encoding using multiple coding modes with multiple color spaces are disclosed. Weighted distortion is calculated for each candidate mode and a target mode is selected according to information including the weighted distortion. Each candidate coding mode is selected from a coding mode group including at least a first coding mode and a second coding mode, where the first coding mode uses a first color space for encoding one block and the second coding mode uses a second color space for encoding one block, and the first color space is different from the second color space. The weighted distortion corresponds to a weighted sum of distortions of color channels for each color transformed current block using a set of weighting factors and the set of weighting factors is derived based on a color transform associated with a corresponding color space for each coding mode.

    METHOD AND APPARATUS FOR PROCESSING PICTURE HAVING PICTURE HEIGHT NOT EVENLY DIVISIBLE BY SLICE HEIGHT AND/OR SLICE WIDTH NOT EVENLY DIVISIBLE BY PIXEL GROUP WIDTH
    38.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING PICTURE HAVING PICTURE HEIGHT NOT EVENLY DIVISIBLE BY SLICE HEIGHT AND/OR SLICE WIDTH NOT EVENLY DIVISIBLE BY PIXEL GROUP WIDTH 审中-公开
    用于处理具有图像高度的图像的方法和装置，甚至不能通过像素组宽度分辨率和/或细节宽度分辨率

    公开(公告)号：US20160261880A1

    公开(公告)日：2016-09-08

    申请号：US15031262

    申请日：2014-10-24

    Applicant: MEDIATEK INC.

    Inventor： Kun-Bin Lee ,  Tung-Hsing Wu ,  Han-Liang Chou

    IPC: H04N19/46 ,  H04N19/436 ,  H04N19/44 ,  H04N19/184 ,  H04N19/174

    Abstract: An image processing method includes: combining a padding region with a picture, wherein any padding pixel included in the padding region is assigned with a predetermined pixel value; and encoding the picture having the padding region combined therewith. For example, the padding region is directly below a bottom edge of the picture. For another example, all of padding pixels included in the padding region have the same pixel value.

    Abstract translation: 一种图像处理方法包括：将填充区域与图像组合，其中包括在填充区域中的任何填充像素被分配预定像素值; 并对与其组合的填充区域进行编码。 例如，填充区域直接在图片的底部边缘的下方。 对于另一示例，包括在填充区域中的所有填充像素具有相同的像素值。

    Image encoding method and apparatus for performing bit-plane scanning coding upon pixel data and related image decoding method and apparatus
    39.
    发明授权
    Image encoding method and apparatus for performing bit-plane scanning coding upon pixel data and related image decoding method and apparatus 有权
    用于对像素数据和相关图像解码方法和装置执行位平面扫描编码的图像编码方法和装置

    公开(公告)号：US09307248B2

    公开(公告)日：2016-04-05

    申请号：US14183537

    申请日：2014-02-19

    Applicant: MEDIATEK INC.

    Inventor： Tung-Hsing Wu ,  Han-Liang Chou ,  Kun-Bin Lee ,  Chi-Cheng Ju

    IPC: G06K9/00 ,  H04N19/132 ,  H04N19/129 ,  H04N19/186 ,  H04N19/146 ,  H04N19/182 ,  H04N19/184 ,  H04N19/59 ,  H04N19/80

    CPC classification number: H04N19/132 ,  H04N19/129 ,  H04N19/146 ,  H04N19/182 ,  H04N19/184 ,  H04N19/186 ,  H04N19/59 ,  H04N19/80

    Abstract: An image encoding method includes at least following steps: receiving a plurality of target pixels within a frame, wherein pixel data of each target pixel has at least one color channel data corresponding to at least one color channel; determining a bit budget of the target pixels; and performing bit-plane scanning coding upon selected pixels according to the bit budget and a scanning order, and accordingly generating encoded pixel data of the selected pixels as encoded data of the target pixels, wherein the selected pixels are derived from the target pixels, and the bit-plane scanning coding extracts partial bits of pixel data of each selected pixel as encoded pixel data of the selected pixel. In addition, a corresponding image decoding method is provided.

    Abstract translation: 图像编码方法至少包括以下步骤：接收帧内的多个目标像素，其中每个目标像素的像素数据具有至少一个对应于至少一个颜色通道的颜色通道数据; 确定目标像素的位预算; 以及根据比特预算和扫描顺序对所选择的像素执行位平面扫描编码，并且相应地生成所选择的像素的编码像素数据作为目标像素的编码数据，其中从所述目标像素导出所选择的像素，以及 位平面扫描编码将每个所选像素的像素数据的部分位提取为所选像素的编码像素数据。 另外，提供了相应的图像解码方法。

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