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    Method and Apparatus for Syntax Redundancy Removal in Palette Coding
    1.
    发明申请
    Method and Apparatus for Syntax Redundancy Removal in Palette Coding 审中-公开
    用于调色板编码中语法冗余删除的方法和装置

    公开(公告)号：US20170034533A1

    公开(公告)日：2017-02-02

    申请号：US15293566

    申请日：2016-10-14

    Applicant: HFI Innovation Inc.

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

    IPC: H04N19/70 ,  H04N19/105 ,  H04N19/182 ,  H04N19/186

    CPC classification number: H04N19/70 ,  H04N19/105 ,  H04N19/159 ,  H04N19/182 ,  H04N19/186 ,  H04N19/463 ,  H04N19/48 ,  H04N19/52 ,  H04N19/56 ,  H04N19/593 ,  H04N19/91 ,  H04N19/93

    Abstract: A method and apparatus for palette coding of a block of video data using a candidate prediction mode list with syntax redundancy removed are disclosed. In one embodiment, whether a redundant prediction mode exists in the candidate prediction mode list for the current samples of the current block is determined based on the candidate prediction mode list and the previous prediction mode associated with the previous samples. If the redundant prediction mode exists in the candidate prediction mode list, the redundant prediction mode is removed from the candidate prediction mode list to generate a reduced candidate prediction mode list. In another embodiment, whether a redundant predictor exists in a candidate predictor list for a current sample of the current block is determined based on a condition related to one or more predictors for the current sample of the current block.

    Abstract translation: 公开了一种使用具有删除语法冗余的候选预测模式列表来调制视频数据块的方法和装置。 在一个实施例中，基于与先前样本相关联的候选预测模式列表和先前预测模式来确定当前块的当前样本的候选预测模式列表中是否存在冗余预测模式。 如果在候选预测模式列表中存在冗余预测模式，则从候选预测模式列表中去除冗余预测模式以生成缩减的候选预测模式列表。 在另一个实施例中，基于与当前块的当前样本的一个或多个预测器相关的条件来确定当前块的当前采样的候选预测器列表中是否存在冗余预测器。

    Method and Apparatus for Major Color Index Map Coding
    2.
    发明申请
    Method and Apparatus for Major Color Index Map Coding 审中-公开
    主要颜色索引地图编码方法与装置

    公开(公告)号：US20160323594A1

    公开(公告)日：2016-11-03

    申请号：US15107915

    申请日：2014-12-17

    Applicant: HFI INNOVATION INC.

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

    IPC: H04N19/463 ,  H04N19/88 ,  H04N19/593 ,  H04N19/129 ,  H04N19/176

    Abstract: A method and apparatus for palette coding of a block of video data using multiple color index scanning orders are disclosed. The system determines a scanning direction for the current block, where the scanning direction is selected from a scan group consisting of at least one non-horizontal scan. If the non-horizontal scan is used, the color indices of the current block are encoded or decoded according to the non-horizontal scan using a palette or a triplet palette. In another embodiment, the system uses a transposed color index map to code the color indices.

    Abstract translation: 公开了一种使用多个颜色索引扫描顺序对视频数据块进行调色板编码的方法和装置。 该系统确定当前块的扫描方向，其中从由至少一个非水平扫描组成的扫描组中选择扫描方向。 如果使用非水平扫描，则使用调色板或三合一调色板根据非水平扫描对当前块的颜色索引进行编码或解码。 在另一个实施例中，系统使用转置的颜色索引图来对颜色索引进行编码。

    METHODS OF ESCAPE PIXEL CODING IN INDEX MAP CODING
    4.
    发明申请
    METHODS OF ESCAPE PIXEL CODING IN INDEX MAP CODING 审中-公开

    公开(公告)号：US20200288170A1

    公开(公告)日：2020-09-10

    申请号：US16880652

    申请日：2020-05-21

    Applicant: HFI INNOVATION INC.

    Inventor： Tzu-Der CHUANG ,  Ching-Yeh CHEN ,  Yu-Chen SUN ,  Jing YE ,  Shan LIU ,  Xiaozhong XU ,  Jungsun KIM

    IPC: H04N19/593 ,  H04N19/70 ,  H04N19/463 ,  H04N19/426 ,  H04N19/93 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44

    Abstract: A method of video coding with reduced implementation cost by reusing transform coefficient buffer palette for palette coding is disclosed. If the current prediction mode is an Intra prediction mode or the Inter prediction mode, information related to transform coefficients for prediction residual of the current block resulted from Intra prediction or Inter prediction is stored in the transform coefficient buffer. If the current prediction mode is the palette coding mode, information related to palette data associated with the current block is stored in the transform coefficient buffer. The current block is then encoded or decoded based on the information related to the transform coefficients if the current block is coded in the Intra prediction mode or the Inter prediction mode, or the information related to the palette data stored in the transform coefficient buffer if the current prediction mode is the palette coding mode.

    Method and Apparatus of Single Sample Mode for Video Coding
    6.
    发明申请
    Method and Apparatus of Single Sample Mode for Video Coding 审中-公开
    用于视频编码的单采样模式的方法和装置

    公开(公告)号：US20170019665A1

    公开(公告)日：2017-01-19

    申请号：US15123825

    申请日：2015-03-11

    Applicant: HFI Innovation Inc.

    Inventor： Yi-Wen CHEN ,  Jian-Liang LIN ,  Yu-Chen SUN

    IPC: H04N19/105 ,  H04N19/597 ,  H04N19/96

    CPC classification number: H04N19/105 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/597 ,  H04N19/96

    Abstract: A method and apparatus of video coding including a Single Sample Mode are disclosed. Embodiments according to the present invention construct a sample candidate list comprising one or more sample candidates from previously reconstructed neighboring samples of the current depth block or the current texture block. A sample candidate is selected from the sample candidate list and the selected sample candidate is used as reconstructed samples for the current depth block or the current texture block. A sample candidate index indicating the selected sample candidate can be signaled at the encoder side or parsed at the decoder side. Alternatively, the sample candidate index can be derived implicitly.

    Abstract translation: 公开了包括单采样模式的视频编码方法和装置。 根据本发明的实施例构造包括来自当前深度块或当前纹理块的先前重建的相邻样本的一个或多个样本候选的样本候选列表。 从样本候选列表中选择样本候选，并且将所选择的候选样本用作当前深度块或当前纹理块的重建样本。 指示所选样本候选的样本候选索引可以在编码器侧发信号通知或在解码器一侧解析。 或者，可以隐式地导出样本候选索引。

    Methods of Handling Escape Pixel as a Predictor in Index Map Coding
    10.
    发明申请
    Methods of Handling Escape Pixel as a Predictor in Index Map Coding 审中-公开

    公开(公告)号：US20170105002A1

    公开(公告)日：2017-04-13

    申请号：US15389743

    申请日：2016-12-23

    Applicant: HFI Innovation Inc.

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

    IPC: H04N19/157 ,  H04N19/50

    Abstract: In a palette prediction that includes a copy-above mode for predicting one or more first pixels based on one or more above pixels located above said one or more first pixels correspondingly, a method of palette mode coding using palette prediction for a picture includes receiving input data associated with a current block and determining a current coding mode for one or more current pixels. If the current coding mode corresponds to the copy-above mode, then the method identifies one or more above pixels located above said one or more current pixels correspondingly, wherein said one or more above pixels are restricted to be non-Escape pixels. The method further encodes the one or more current pixels by using said one or more above pixels as predictors.

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