POINT CLOUD DATA TRANSMISSION DEVICE, POINT CLOUD DATA TRANSMISSION METHOD, POINT CLOUD DATA RECEPTION DEVICE, AND POINT CLOUD DATA RECEPTION METHOD

    公开(公告)号:US20230394712A1

    公开(公告)日:2023-12-07

    申请号:US18018962

    申请日:2021-07-26

    CPC classification number: G06T9/001 G06T9/40

    Abstract: A point cloud data transmission method, according to embodiments, may comprise the steps of: encoding point cloud data; and transmitting a bitstream including the point cloud data. In addition, a point cloud data transmission device, according to embodiments, may comprise: an encoder for encoding point cloud data; and a transmitter for transmitting a bitstream including the point cloud data. The encoder may comprise: a prediction tree generation unit for forming a location prediction tree for geometric data; a geometry reconstruction unit for aligning the geometric data of the point cloud data; and a prediction tree generation/transformation processing unit for generating an attribute prediction tree on the basis of the aligned data.

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