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    PARTIAL DECODING AND RECONSTRUCTION OF A VIDEO-BASED POINT CLOUD COMPRESSION BITSTREAM
    1.
    发明申请
    PARTIAL DECODING AND RECONSTRUCTION OF A VIDEO-BASED POINT CLOUD COMPRESSION BITSTREAM 审中-公开

    公开(公告)号：WO2022060182A1

    公开(公告)日：2022-03-24

    申请号：PCT/KR2021/012864

    申请日：2021-09-17

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： JOSHI, Rajan Laxman ,  BUDAGAVI, Madhukar

    IPC: H04N19/597 ,  H04N19/184 ,  H04N19/119 ,  H04N19/44 ,  G06T9/00

    Abstract: A decoding device for point cloud decoding includes a communication interface and a processor. The communication interface configured to receive a bitstream. The processor is configured to identify, from the bitstream, messages and one or more sub-bitstreams representing a three-dimensional (3D) point cloud. The processor is configured to identify a query label indicating an object of the 3D point cloud for decoding. In response to determining that the query label corresponds to a label, the processor is configured to identify a 3D scene object associated with the query label. The processor is configured to identify a 2D tile that correspond to the 3D scene object. The processor is configured to determine to decode, based on an identification of the 2D tile from the sub-bitstream, a portion of the sub-bitstream corresponding to the 2D tile to generate a portion of a video frame representing a portion of the 3D scene object.

    COMPLEXITY REDUCTION OF VIDEO-BASED POINT CLOUD COMPRESSION ENCODING USING GRID-BASED SEGMENTATION
    2.
    发明申请
    COMPLEXITY REDUCTION OF VIDEO-BASED POINT CLOUD COMPRESSION ENCODING USING GRID-BASED SEGMENTATION 审中-公开

    公开(公告)号：WO2022039579A1

    公开(公告)日：2022-02-24

    申请号：PCT/KR2021/011218

    申请日：2021-08-23

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： FARAMARZI, Esmaeil ,  BUDAGAVI, Madhukar ,  JOSHI, Rajan Laxman

    IPC: H04N19/597 ,  H04N19/20 ,  H04N19/184 ,  G06T9/00 ,  G06T7/11

    Abstract: An encoding device and a method for point cloud encoding are disclosed. The method includes segmenting an area including points representing a three-dimensional (3D) point cloud into multiple voxels. The method also includes generating a patch information for each of the multiple voxels that include at least one of the points of the 3D point cloud. The method further includes assigning the patch information of the multiple voxels to the points included in each respective voxel, to generate patches that represent the 3D point cloud based on the patch information of the multiple voxels. Additionally, the method includes generating frames that include pixels that represent the patches. The method also includes encoding the frames to generate a bitstream and transmitting the bitstream.

    POINT CLOUD COMPRESSION USING HYBRID TRANSFORMS
    3.
    发明申请
    POINT CLOUD COMPRESSION USING HYBRID TRANSFORMS 审中-公开

    公开(公告)号：WO2019078696A1

    公开(公告)日：2019-04-25

    申请号：PCT/KR2018/012483

    申请日：2018-10-22

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： SINHAROY, Indranil ,  BUDAGAVI, Madhukar ,  LIM, Young-kwon ,  NAJAF-ZADEH, Hossin ,  RHYU, Sung-ryeul ,  FARAMARZI, Esmaeil

    IPC: G06T17/00 ,  H04N19/60 ,  H04N19/23 ,  H04N19/597 ,  H04N19/70 ,  H04N19/184

    Abstract: A decoding device, an encoding device and a method for point cloud decoding is disclosed. The method includes decoding the compressed bitstream into a first set and second set of 2-D frames. The first set of 2-D frames include first set of regular patches representing geometry of a 3-D point cloud and the second set of 2-D frames include first set of regular patches representing texture of the 3-D point cloud. The method includes identifying in the first set of 2-D frames, a missed points patch representing geometry of points of the 3-D point cloud not included in the regular patches, and in the second set of 2-D frames a missed points patch that represents texture of the points of the 3-D point cloud not included in the regular patches. The method also includes generating, using the set of 2-D frames, the 3-D point cloud using the missed points patches.

    METHOD AND APPARATUS FOR MESH CODING BY USING OVERLAPPED PATCHES FOR VIDEO BASED POINT CLOUD COMPRESSION
    5.
    发明申请
    METHOD AND APPARATUS FOR MESH CODING BY USING OVERLAPPED PATCHES FOR VIDEO BASED POINT CLOUD COMPRESSION 审中-公开

    公开(公告)号：WO2022114786A1

    公开(公告)日：2022-06-02

    申请号：PCT/KR2021/017427

    申请日：2021-11-24

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： JOSHI, Rajan Laxman ,  FARAMARZI, Esmaeil ,  BUDAGAVI, Madhukar

    IPC: H04N19/597 ,  H04N19/184 ,  G06T9/00 ,  G06T17/20

    Abstract: An encoding device, a decoding device, and a method for mesh decoding are disclosed. The method for mesh decoding includes decoding a frame that includes pixels from the bitstream. A portion of the pixels of the frame represent geometric locations of vertices of a 3D mesh that are organized into overlapped patches The method further includes decoding connectivity information from the bitstream. Additionally, the method includes identifying triangles associated with the overlapped patches The triangles represented in an overlapped patch of the overlapped patches are allocated to a projection direction based on a normal vector associated with each of the triangles of the overlapped patch. The method also includes reconstructing the 3D mesh based on the connectivity information and the overlapped patches.

    METHOD AND APPARATUS FOR HANDLING DUPLICATE POINTS IN POINT CLOUD COMPRESSION
    6.
    发明申请
    METHOD AND APPARATUS FOR HANDLING DUPLICATE POINTS IN POINT CLOUD COMPRESSION 审中-公开

    公开(公告)号：WO2019125010A1

    公开(公告)日：2019-06-27

    申请号：PCT/KR2018/016336

    申请日：2018-12-20

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： SINHAROY, Indranil ,  BUDAGAVI, Madhukar

    IPC: G06T9/00 ,  G06T7/50

    Abstract: A decoder, an encoder and a method for decoding 3D point cloud data. The decoder includes a communication interface configured to receive an encoded bit stream comprising the 3D point cloud data and a processor. The processor is configured to decode the bit stream to identify a plurality of 2D frames; identify corresponding pixels in two or more geometry frames in the plurality of 2D frames based on locations of the corresponding pixels in the two or more geometry frames; identify depth values of the corresponding pixels in the two or more geometry frames; identify duplicate points in at least one of the two or more geometry frames based on the identified depth values of the corresponding pixels in the two or more geometry frames; and remove or ignore the identified duplicate points while reconstructing the 3D point cloud data.

    METHOD AND APPARATUS FOR ENHANCING IMAGES VIA WHITE POP-OUT
    7.
    发明申请
    METHOD AND APPARATUS FOR ENHANCING IMAGES VIA WHITE POP-OUT 审中-公开
    用于通过白色渗出来增强图像的方法和装置

    公开(公告)号：WO2017052215A1

    公开(公告)日：2017-03-30

    申请号：PCT/KR2016/010565

    申请日：2016-09-22

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： SAXENA, Ankur ,  NAJAF-ZADEH, Hossein ,  BUDAGAVI, Madhukar

    IPC: G06T5/00 ,  G06T11/40 ,  H04N5/235

    CPC classification number: G06T5/009 ,  G06T5/008 ,  G06T2207/20208 ,  H04N1/00 ,  H04N1/407 ,  H04N1/6005 ,  H04N1/6027

    Abstract: A electronic device includes a display and at least one processor. The processor is configured to acquire an image and metadata related to the image. The processor is also configured to identify at least a portion of the image to be enhanced based on the metadata related to the image. The processor is also configured to generate an enhanced image by increasing an intensity of the at least a portion of the image. The processor is also configured to output the enhanced image to the display.

    Abstract translation: 电子设备包括显示器和至少一个处理器。 处理器被配置为获取与图像相关的图像和元数据。 处理器还被配置为基于与图像有关的元数据来识别待增强的图像的至少一部分。 处理器还被配置为通过增加图像的至少一部分的强度来生成增强图像。 处理器还被配置为将增强图像输出到显示器。

    SYSTEM AND METHOD FOR INTRA PREDICTION IN VIDEO CODING
    8.
    发明申请
    SYSTEM AND METHOD FOR INTRA PREDICTION IN VIDEO CODING 审中-公开
    用于视频编码的内部预测的系统和方法

    公开(公告)号：WO2016076526A1

    公开(公告)日：2016-05-19

    申请号：PCT/KR2015/009889

    申请日：2015-09-22

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： BUDAGAVI, Madhukar

    IPC: H04N19/597 ,  H04N19/176

    CPC classification number: H04N19/11 ,  H04N19/176 ,  H04N19/44 ,  H04N19/80 ,  H04N19/86

    Abstract: A user equipment includes a transceiver and a decoder. The transceiver is configured to receive an encoded bitstream of video. The decoder includes processing circuitry. The decoder is configured to identify a first intra mode associated with a top prediction unit (PU) in relation to a current PU of the encoded bitstream of video. The decoder is also configured to identify a second intra mode associated with a left PU in relation to the current PU. The decoder is also configured to determine a plurality of most probable modes (MPMs) based on the first intra mode and the second intra mode, wherein a number of modes is greater than thirty-five.

    Abstract translation: 用户设备包括收发器和解码器。 收发器被配置为接收视频的编码比特流。 解码器包括处理电路。 解码器被配置为识别与视频的编码比特流的当前PU相关联的与顶部预测单元（PU）相关联的第一帧内模式。 解码器还被配置为识别与当前PU相关的左PU相关联的第二帧内模式。 解码器还被配置为基于第一帧模式和第二帧内模式来确定多个最可能模式（MPM），其中多个模式大于三十五。

    ATTRIBUTE TRANSFER IN V-PCC
    10.
    发明申请
    ATTRIBUTE TRANSFER IN V-PCC 审中-公开

    公开(公告)号：WO2021141400A1

    公开(公告)日：2021-07-15

    申请号：PCT/KR2021/000175

    申请日：2021-01-07

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： NAJAF-ZADEH, Hossein ,  JOSHI, Rajan Laxman ,  BUDAGAVI, Madhukar

    IPC: H04N19/597 ,  H04N19/184 ,  H04N19/44 ,  G06T9/00 ,  G06T17/205 ,  G06T5/002 ,  G06T5/006 ,  G06T9/001

    Abstract: A method for point cloud decoding includes receiving a bitstream. The method also includes decoding the bitstream into multiple frames that include pixels. Certain pixels of the multiple frames correspond to points of a three-dimensional (3D) point cloud. The multiple frames include a first set of frames that represent locations of the points of the 3D point cloud and a second set of frames that represent attribute information for the points of the 3D point cloud. The method further includes reconstructing the 3D point cloud based on the first set of frames. Additionally, the method includes identifying a first portion of the points of the reconstructed 3D point cloud based at least in part on a property associated with the multiple frames. The method also includes modifying a portion of the attribute information. The portion of the attribute information that is modified corresponds to the first portion of the points.

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