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    Method and Apparatus for Palette Coding with Cross Block Prediction
    103.
    发明申请
    Method and Apparatus for Palette Coding with Cross Block Prediction 审中-公开
    用于具有跨块预测的调色板编码的方法和装置

    公开(公告)号：US20160309183A1

    公开(公告)日：2016-10-20

    申请号：US15101139

    申请日：2014-12-26

    Applicant: MEDIATEK INC.

    Inventor： Yu-Chen SUN ,  Jungsun KIM ,  Tzu-Der CHUANG ,  Yi-Wen CHEN ,  Wang Lin LAI ,  Shan LIU ,  Yu-Wen HUANG

    IPC: H04N19/593 ,  H04N19/186 ,  H04N19/124 ,  H04N19/176 ,  H04N19/182

    CPC classification number: H04N19/593 ,  H04N19/124 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186

    Abstract: A method and apparatus for color index coding of a block of video data using index prediction based on reconstructed neighboring pixels are disclosed. In one embodiment, color index encoding or decoding is applied to the current pixel indices by deriving index prediction from neighboring pixel indices of the reconstructed neighboring pixels. The reconstructed neighboring pixel values are first transformed into the neighboring pixel indices according to a quantization table to map between major color indices and major color values of the current block. The quantization table can be based on a major color table for the current block or can also be derived at a decoder side. The decoding process may reconstruct the current pixels by converting decoded current pixel indices to reconstructed current pixel values according to the quantization table or by directly copying the reconstructed neighboring pixel values indicated by decoded current pixel indices.

    Abstract translation: 公开了使用基于重构的相邻像素的索引预测对视频数据块进行颜色索引编码的方法和装置。 在一个实施例中，通过从重建的相邻像素的相邻像素索引导出索引预测，将颜色索引编码或解码应用于当前像素索引。 首先根据量化表将重建的相邻像素值变换为相邻像素索引，以在主要颜色索引和当前块的主要颜色值之间进行映射。 量化表可以基于当前块的主色表或也可以在解码器侧得到。 解码处理可以通过根据量化表将解码的当前像素索引转换为重构的当前像素值或通过直接复制由解码的当前像素索引指示的重建的相邻像素值来重构当前像素。

    Method and Apparatus for Color Index Prediction
    104.
    发明申请
    Method and Apparatus for Color Index Prediction 审中-公开
    颜色索引预测方法与装置

    公开(公告)号：US20160301938A1

    公开(公告)日：2016-10-13

    申请号：US15038599

    申请日：2015-01-07

    Applicant: MediaTek Inc.

    Inventor： Yu-Chen SUN ,  Tzu-Der CHUANG ,  Yi-Wen CHEN ,  Yu-Wen HUANG

    IPC: H04N19/186 ,  H04N19/93 ,  H04N19/182 ,  H04N19/463 ,  H04N19/176

    Abstract: A method and apparatus for coding a block of video data using index or pixel value prediction including a copy-by-pattern-search mode are disclosed. According to the present invention, a current search pattern is determined based on one or more previous coded pixels. One or more predictors are derived according to the current search pattern for a current index or pixel value of a current pixel in the current block. Encoding or decoding is then applied to one or more following indices or pixel values of one or more following pixels including the current pixel using the predictors. In a simplest case, the one or more previous coded pixels correspond to a single previous coded pixel at the left side of the current pixel and the one or more following pixels contain only the current pixel.

    Abstract translation: 公开了一种使用包括逐模式搜索模式的索引或像素值预测对视频数据块进行编码的方法和装置。 根据本发明，基于一个或多个以前的编码像素来确定当前搜索模式。 根据当前搜索模式导出当前块中当前像素的当前索引或像素值的一个或多个预测值。 然后，使用预测器将编码或解码应用于包括当前像素的一个或多个跟随像素的一个或多个跟随索引或像素值。 在最简单的情况下，一个或多个先前的编码像素对应于当前像素左侧的单个先前编码像素，并且一个或多个跟随像素仅包含当前像素。

    Method and Apparatus of Scalable Video Coding
    105.
    发明申请
    Method and Apparatus of Scalable Video Coding 审中-公开
    可扩展视频编码的方法和装置

    公开(公告)号：US20160234499A1

    公开(公告)日：2016-08-11

    申请号：US15132454

    申请日：2016-04-19

    Applicant: MediaTek Inc.

    Inventor： Tzu-Der CHUANG ,  Ching-Yeh CHEN ,  Yu-Wen Huang ,  Shaw-Min Lei ,  Chih-Ming FU ,  Chia-Yang TSAI

    IPC: H04N19/13 ,  H04N19/154 ,  H04N19/187 ,  H04N19/146

    CPC classification number: H04N19/13 ,  H04N19/117 ,  H04N19/119 ,  H04N19/146 ,  H04N19/154 ,  H04N19/187 ,  H04N19/30 ,  H04N19/33 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

    Abstract: A method and apparatus for scalable video coding are disclosed, wherein the video data is configured into a Base Layer (BL) and an Enhancement Layer (EL) and wherein the EL has higher spatial resolution or better video quality than the BL. According to embodiments of the present invention, information from the base layer is exploited for coding the enhancement layer. The information coding for the enhancement layer includes CU structure, motion information, motion information, MVP/merge candidates, intra prediction mode, residual quadtree information, texture information, residual information, context adaptive entropy coding, Adaptive Lop Filter (ALF), Sample Adaptive Offset (SAO), and deblocking filter.

    Abstract translation: 公开了一种用于可缩放视频编码的方法和装置，其中视频数据被配置为基本层（BL）和增强层（EL），并且其中EL具有比BL更高的空间分辨率或更好的视频质量。 根据本发明的实施例，利用来自基础层的信息来对增强层进行编码。 增强层的信息编码包括CU结构，运动信息，运动信息，MVP /合并候选，帧内预测模式，残余四叉树信息，纹理信息，残差信息，上下文自适应熵编码，自适应Lop滤波器（ALF） 偏移（SAO）和去块滤波器。

    Method and Apparatus for Geometry Partition Mode MV Assignment in Video Coding System
    106.
    发明申请
    Method and Apparatus for Geometry Partition Mode MV Assignment in Video Coding System 有权

    公开(公告)号：US20250113028A1

    公开(公告)日：2025-04-03

    申请号：US18730932

    申请日：2023-01-13

    Applicant: MEDIATEK INC.

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

    IPC: H04N19/119 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70

    Abstract: A method and apparatus for video coding are disclosed for the encoder side and the decoder side. According to the method for the decoder side, encoded data associated with a current block is received. A pseudo GPM in a target GPM group for the current block is determined. The current block is divided into one or more subblocks. Assigned MVs (Motion Vectors) of each subblock are determined according to the pseudo GPM. A cost for each GPM in the target GPM group is determined according to decoded data. A selected GPM is determined based on a mode syntax and a reordered target GPM group corresponding to the target GPM group reordered according to the costs, wherein the pseudo GPM is allowed to be different from the selected GPM. The encoded data is decoded using information comprising the selected GPM.

    Method and Apparatus of Cross-Component Linear Model Prediction with Refined Parameters in Video Coding System
    108.
    发明申请
    Method and Apparatus of Cross-Component Linear Model Prediction with Refined Parameters in Video Coding System 有权

    公开(公告)号：US20250071288A1

    公开(公告)日：2025-02-27

    申请号：US18728992

    申请日：2023-01-18

    Applicant: MEDIATEK INC.

    Inventor： Chia-Ming TSAI ,  Chun-Chia CHEN ,  Chih-Wei HSU ,  Ching-Yeh CHEN ,  Tzu-Der CHUANG

    IPC: H04N19/136 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186

    Abstract: A method and apparatus for video coding are disclosed. According to the method for the decoder side, encoded data associated with a current block comprising a first-colour block and a second-colour block are received. An inherited model parameter set is determined from a previously coded block coded in a first CCLM related mode, wherein the inherited model parameter set comprises a first scaling parameter associated with the first CCLM related mode. A final inherited model parameter set is derived if an update value for the inherited model parameter set is determined, where the final inherited model parameter set is determined based on the first scaling parameter and the update value. Then, the encoded data associated with the second-colour block are decoded using prediction data based on an updated CCLM related model associated with the final inherited model parameter set. A method and apparatus for the encoder side are also disclosed.

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