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    METHOD AND APPARATUS OF ENCODING/DECODING POINT CLOUD GEOMETRY DATA
    1.
    发明申请
    METHOD AND APPARATUS OF ENCODING/DECODING POINT CLOUD GEOMETRY DATA 有权

    公开(公告)号：US20250071325A1

    公开(公告)日：2025-02-27

    申请号：US18725061

    申请日：2021-12-30

    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

    Inventor： Shuo GAO

    IPC: H04N19/597 ,  H04N19/91

    Abstract: A method of encoding a point cloud into a bitstream of encoded point cloud data, each point of the point cloud being associated with a radius responsive to a distance of the point from a sensor that captured the point. The method includes: obtaining a predicted radius representative of a prediction of a radius of a point of the point cloud from prediction data (PD); obtaining a residual radius of a point of the point cloud between the radius of said point and the predicted radius; selecting a context based on the prediction data (PD); and context-based entropy encoding the magnitude of the residual radius based the selected context.

    POINT CLOUD PROCESSING METHOD AND APPARATUS
    4.
    发明申请
    POINT CLOUD PROCESSING METHOD AND APPARATUS 有权

    公开(公告)号：US20250063178A1

    公开(公告)日：2025-02-20

    申请号：US18937433

    申请日：2024-11-05

    Applicant: Tencent Technology (Shenzhen) Company Limited

    Inventor： Wenjie ZHU

    IPC: H04N19/157 ,  H04N19/597 ,  H04N19/60 ,  H04N19/70 ,  H04N19/91 ,  H04N19/96

    Abstract: This disclosure relates to a point cloud processing method and apparatus. In the point cloud processing method, in a decoding phase, encoded data of a point cloud is obtained, the encoded data is analyzed to obtain shift data, the shift data being obtained by performing shift processing on target encoding information of the point cloud in an encoding process of the point cloud, and shift reconstruction is performed on the shift data to obtain reconstructed encoding information of the target encoding information. In the point cloud processing method, in an encoding phase, the target encoding information of the point cloud is obtained, shift processing is performed on the target encoding information to obtain the shift data of the target encoding information, and the shift data is encoded.

    IMAGE AND LIDAR ADAPTIVE TRANSFORMER FOR FUSION-BASED PERCEPTION
    5.
    发明申请
    IMAGE AND LIDAR ADAPTIVE TRANSFORMER FOR FUSION-BASED PERCEPTION 有权

    公开(公告)号：US20250060481A1

    公开(公告)日：2025-02-20

    申请号：US18452279

    申请日：2023-08-18

    Applicant: QUALCOMM Incorporated

    Inventor： Meysam Sadeghigooghari ,  Varun Ravi Kumar ,  Senthil Kumar Yogamani

    IPC: G01S17/86 ,  B60W50/14 ,  G06T7/50 ,  G06T17/00 ,  G06V10/25 ,  G06V10/44 ,  G06V10/80 ,  H04N19/597

    Abstract: An apparatus includes a memory and processing circuitry in communication with the memory. The processing circuitry is configured to apply, based on a positional encoding model, a first feature conditioning module to a set of bird's eye view (BEV) position data features corresponding to position data to generate a set of conditioned BEV position data features, and apply, based on the position encoding model, a second feature conditioning module to a set of perspective image data features corresponding to image data to generate a set of conditioned perspective image data features. The processing circuitry is also configured to generate, based on the positional encoding model, the set of conditioned BEV position data features, and the set of conditioned perspective image data features, a weighted summation. Additionally, the processing circuitry is configured to generate, based on the weighted summation, a set of BEV image data features.

    Information processing device and method
    6.
    发明授权
    Information processing device and method 有权

    公开(公告)号：US12231684B2

    公开(公告)日：2025-02-18

    申请号：US17790393

    申请日：2020-12-24

    Applicant: SONY GROUP CORPORATION

    Inventor： Tsuyoshi Kato ,  Satoru Kuma ,  Ohji Nakagami ,  Hiroyuki Yasuda ,  Koji Yano

    IPC: H04N19/597 ,  H04N19/30 ,  H04N19/50

    Abstract: There is provided an information processing device and method capable of suppressing a reduction in encoding efficiency. When performing, for attribute information of each point of a point cloud that represents an object having a three-dimensional shape as a set of points, hierarchization of the attribute information by recursively repeating classification of a prediction point for deriving a difference value between the attribute information and a predicted value of the attribute information and a reference point used for deriving the predicted value with respect to the reference point, the reference point is set on the basis of a centroid of points. The present disclosure can be applied to, for example, an information processing device, an image processing device, an encoding device, a decoding device, an electronic device, an information processing method, a program, and the like.

    Method and apparatus of encoding/decoding image data based on tree structure-based block division
    9.
    发明授权
    Method and apparatus of encoding/decoding image data based on tree structure-based block division 有权

    公开(公告)号：US12225231B2

    公开(公告)日：2025-02-11

    申请号：US18666098

    申请日：2024-05-16

    Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.

    Inventor： Ki Baek Kim

    IPC: H04N19/597 ,  G06T3/16 ,  H04N13/139 ,  H04N13/161 ,  H04N19/70 ,  H04N13/00

    Abstract: Disclosed are methods and apparatuses for image data encoding/decoding. A method of decoding an image includes receiving a bitstream in which the image is encoded; obtaining index information for specifying a block division type of a current block in the image; and determining the block division type of the current block from a candidate group pre-defined in the decoding apparatus. The candidate group includes a plurality of candidate division types, including at least one of a non-division, a first quad-division, a second quad-division, a binary-division or a triple-division. The method also includes dividing the current block into a plurality of sub-blocks; and decoding each of the sub-blocks with reference to syntax information obtained from the bitstream.

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