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    METHOD AND APPARATUS OF ENCODING/DECODING POINT CLOUD GEOMETRY DATA SENSED BY AT LEAST ONE SENSOR
    2.
    发明公开
    METHOD AND APPARATUS OF ENCODING/DECODING POINT CLOUD GEOMETRY DATA SENSED BY AT LEAST ONE SENSOR 审中-公开

    公开(公告)号：US20240362824A1

    公开(公告)日：2024-10-31

    申请号：US18687773

    申请日：2022-06-17

    申请人： BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

    发明人： Sebastien LASSERRE ,  Jonathan TAQUET

    IPC分类号： G06T9/00

    CPC分类号： G06T9/001

    摘要： The method of encoding/decoding a point cloud sensed by any type of sensor following a sensing path obtains coarse representations of sensed points and encodes the sensing path and the coarse representations. The sensing path and coarse representations of points are decoded, and points of the point cloud are reconstructed from the decoded sensing path and the decoded coarse representations. The coarse representations of sensed points of the point cloud are coarse points defined in a two-dimensional angular coordinate space, and a coarse point is obtained by shifting a sensing point in the two-dimensional angular coordinate space with shifting values that depend on the sensor index associated with the sensor that sensed the point P of the point cloud.

    PARENT-CHILD CLUSTER COMPRESSION
    3.
    发明公开
    PARENT-CHILD CLUSTER COMPRESSION 审中-公开

    公开(公告)号：US20240355000A1

    公开(公告)日：2024-10-24

    申请号：US18760357

    申请日：2024-07-01

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： Jeffrey Kempf ,  Jonathan Lucas

    IPC分类号： G06T9/00 ,  G06T3/4007 ,  G06T3/4015

    CPC分类号： G06T9/00 ,  G06T3/4007 ,  G06T3/4015

    摘要： A system includes a memory and a display. The system also includes a processor coupled to the memory and to the display. The processor is configured to obtain an image and determine a parent cluster of pixels of an image having a centroid. The processor is also configured to split the parent cluster into at least a first child cluster and a second child cluster and assign a pixel of the image to the first child cluster. Additionally, the pixel is configured to update a centroid of the first child cluster responsive to the pixel and replace the pixel in the image with the centroid of the first child cluster to produce a compressed image. Also, the processor is configured to store the compressed image in the memory, where the display is configured to display the compressed image.

    Decoding of patch temporal alignment for mesh compression
    8.
    发明授权
    Decoding of patch temporal alignment for mesh compression 有权

    公开(公告)号：US12125250B2

    公开(公告)日：2024-10-22

    申请号：US17954961

    申请日：2022-09-28

    申请人： Tencent America LLC

    发明人： Jun Tian ,  Xiang Zhang ,  Xiaozhong Xu ,  Chao Huang ,  Shan Liu

    IPC分类号： G06T9/00 ,  G06T15/04 ,  G06T17/20

    CPC分类号： G06T9/001 ,  G06T15/04 ,  G06T17/20

    摘要： Processing circuitry decodes a texture map in 2D from a bitstream carrying a 3D mesh frame. The 3D mesh frame represents a surface of an object with polygons and is partitioned into patches. The texture map includes transformed patches with transformed UV coordinates that are transformed from original UV coordinates of the patches according to remap transform parameters. The processing circuitry decodes the remap transform parameters associated with the patches and generates a recovered texture map from the texture map according to the remap transform parameters. At least a first recovered pixel in the recovered texture map is assigned with a texture value at a first transformed position in the texture map, the first transformed position in the texture map is determined according to a pixel position of the first recovered pixel and first remap transform parameters associated with a first patch that the first recovered pixel belongs to.