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    NOVEL CRITERIA FOR GAUSSIAN MIXTURE MODEL CLUSTER SELECTION IN SCALABLE COMPRESSED FISHER VECTOR (SCFV) GLOBAL DESCRIPTOR
    2.
    发明申请
    NOVEL CRITERIA FOR GAUSSIAN MIXTURE MODEL CLUSTER SELECTION IN SCALABLE COMPRESSED FISHER VECTOR (SCFV) GLOBAL DESCRIPTOR 审中-公开
    GAUSSIAN混合模型集群选择标准压缩渔船矢量（SCFV）全球描述符的新标准

    公开(公告)号：US20140198998A1

    公开(公告)日：2014-07-17

    申请号：US14151657

    申请日：2014-01-09

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Gaurav Srivastava ,  Zhu Li ,  Abhishek Nagar ,  Ankur Saxena ,  Zhan Ma ,  Felix Carlos Fernandes

    IPC: G06F17/30

    CPC classification number: G06F16/5838

    Abstract: A wireless communication device includes a processor configured to execute an image query. The image query utilizes cluster selection criteria for a cluster-aggregation based vectorization of a set of local features based on a quantity of top local features having the highest posteriori probability values. The cluster selection criterion is measured as the summation of the posteriori probability values of the top local features. The quantity of top local features is determined by a predetermined integer value greater than one.

    Abstract translation: 无线通信设备包括被配置为执行图像查询的处理器。 基于具有最高后验概率值的顶部局部特征的量，图像查询利用基于聚类聚集的集群选择标准来矢量化一组局部特征。 集群选择标准被测量为顶部局部特征的后验概率值的总和。 顶部本地特征的数量由大于1的预定整数值确定。

    Generating and transmitting metadata for virtual reality
    3.
    发明授权
    Generating and transmitting metadata for virtual reality 有权

    公开(公告)号：US11245939B2

    公开(公告)日：2022-02-08

    申请号：US15001056

    申请日：2016-01-19

    Applicant: Samsung Electronics Co., Ltd

    Inventor： Ankur Saxena ,  Hossein Najaf-Zadeh ,  Madhukar Budagavi

    IPC: H04N21/235 ,  H04N21/218 ,  H04N21/81 ,  H04N21/435 ,  G06T19/00 ,  H04N21/4728 ,  H04N21/472

    Abstract: A user equipment (UE) includes a receiver, display, and processor. The receiver is configured to receive a data stream including a plurality of frames. The data stream includes a region of interest in a key frame of the plurality of frames. The display is configured to display a portion of a frame of the plurality of frames. The processor is configured to perform an action to focus a current view of the UE to the region of interest in the key frame. Each frame of the plurality of frames includes a plurality of images stitched together to form a stitched image. The stitched image for at least one frame of the plurality of frames includes at least one high dynamic range (HDR) image and at least one standard dynamic range (SDR) image.

    METHOD FOR INTRA PREDICTION IMPROVEMENTS FOR OBLIQUE MODES IN VIDEO CODING
    6.
    发明申请
    METHOD FOR INTRA PREDICTION IMPROVEMENTS FOR OBLIQUE MODES IN VIDEO CODING 审中-公开
    用于视频编码中的OBLIQUE模式的内部预测改进方法

    公开(公告)号：US20150016516A1

    公开(公告)日：2015-01-15

    申请号：US14256858

    申请日：2014-04-18

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Ankur Saxena ,  Haoming Chen ,  Felix Carlos Fernandes

    IPC: H04N19/61

    CPC classification number: H04N19/182 ,  H04N19/105 ,  H04N19/12 ,  H04N19/136 ,  H04N19/436 ,  H04N19/593

    Abstract: In various embodiments, a method and a decoder include identifying a directional intra prediction mode with an angle of prediction. The method also includes identifying a first and second reference neighboring samples in a block of the video along the angle of prediction; the angle of prediction intersects a pixel to be predicted. The method further includes determining which of the first and second reference samples is nearest the angle of prediction and applying a value of the nearest reference neighboring sample to the pixel as a predictor. Also, a method and a decoder include determining whether a block type of a block of the video is intra block copy. The method also includes responsive to the block type being the intra block copy, determining a transform block size of the block and, responsive to the transform block size being 4×4, applying a discrete sine transform to the block.

    Abstract translation: 在各种实施例中，方法和解码器包括以预测角度来识别定向帧内预测模式。 该方法还包括沿预测角度识别视频块中的第一和第二参考相邻采样; 预测角度与要预测的像素相交。 该方法还包括确定第一和第二参考样本中的哪一个最接近于预测角度，并将最近的参考相邻样本的值作为预测器应用于像素。 此外，方法和解码器包括确定视频的块的块类型是否是块内副本。 该方法还包括响应于块类型是帧内块拷贝，确定块的变换块大小，并且响应于变换块大小为4×4，对块进行离散正弦变换。

    METHOD AND APPARATUS FOR APPLYING SECONDARY TRANSFORMS ON ENHANCEMENT-LAYER RESIDUALS
    7.
    发明申请
    METHOD AND APPARATUS FOR APPLYING SECONDARY TRANSFORMS ON ENHANCEMENT-LAYER RESIDUALS 审中-公开
    在增强层残留中应用二次变换的方法和装置

    公开(公告)号：US20140254661A1

    公开(公告)日：2014-09-11

    申请号：US14194246

    申请日：2014-02-28

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Ankur Saxena ,  Felix C. A. Fernandes

    IPC: H04N19/625 ,  H04N19/30

    CPC classification number: H04N19/625 ,  H04N19/30 ,  H04N19/63

    Abstract: A method includes receiving a video bitstream and a flag and interpreting the flag to determine a transform that was used at an encoder. The method also includes, upon a determination that the transform that was used at the encoder includes a secondary transform, applying an inverse secondary transform to the received video bitstream, where the inverse secondary transform corresponds to the secondary transform used at the encoder. The method further includes applying an inverse discrete cosine transform (DCT) to the video bitstream after applying the inverse secondary transform.

    Abstract translation: 一种方法包括接收视频比特流和标志，并解释该标志以确定在编码器处使用的变换。 该方法还包括在确定在编码器处使用的变换包括次级变换时，对所接收的视频位流应用逆次级变换，其中逆次级变换对应于在编码器处使用的次级变换。 该方法还包括在应用逆二次变换之后对视频比特流应用逆离散余弦变换（DCT）。

    METHODS FOR PALETTE PREDICTION AND INTRA BLOCK COPY PADDING
    9.
    发明申请
    METHODS FOR PALETTE PREDICTION AND INTRA BLOCK COPY PADDING 审中-公开
    PALETTE预测和内部块复制方法

    公开(公告)号：US20150110181A1

    公开(公告)日：2015-04-23

    申请号：US14518883

    申请日：2014-10-20

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Ankur Saxena ,  Guoxin Jin ,  Felix Carlos Fernandes

    IPC: H04N19/157 ,  H04N19/147 ,  H04N19/583 ,  H04N19/186 ,  H04N19/182

    CPC classification number: H04N19/147 ,  H04N19/11 ,  H04N19/176 ,  H04N19/46 ,  H04N19/463

    Abstract: A method is provided that includes receiving a bitstream. The method also includes parsing the bitstream for a flag indicating whether a palette was used from a first or second coding unit. The method also includes decoding the first coding unit using the palette from the first or second coding unit indicated by the flag. The palette is determined based on which palette of the first or second coding unit improves compression performance. Also, a method is provided that includes receiving a bitstream with a predicted pixel. A coding unit and a reference unit are identified. A number of pixels of the coding unit and the reference unit overlap. A set of available pixels and a set of unavailable pixels of the reference unit are identified. The predicted pixel of the set of unavailable pixels is estimated as a pixel of the set of available pixels.

    Abstract translation: 提供了一种包括接收比特流的方法。 该方法还包括解析比特流，用于指示是否从第一或第二编码单元使用调色板的标志。 该方法还包括使用来自由标志指示的第一或第二编码单元的调色板解码第一编码单元。 基于第一或第二编码单元的哪个调色板提高压缩性能来确定调色板。 此外，提供了一种包括以预测像素接收比特流的方法。 识别编码单元和参考单元。 编码单元和参考单元的多个像素重叠。 识别参考单元的一组可用像素和一组不可用像素。 将不可用像素组中的预测像素估计为可用像素集合的像素。

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