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Point cloud data transmitting device, point cloud data transmitting method, point cloud data receiving device, and point cloud data receiving method

專利號
US11968393B2
公開日期
2024-04-23
申請人
LG ELECTRONICS INC.（KR Seoul）
發(fā)明人
Sejin Oh
IPC分類
H04N7/12; G06T9/00; H04N19/597; H04N21/236; H04N21/434; H04N21/81
技術領域
cloud,pcc,patch,point,may,video,data,image,geometry,occupancy
地域： Seoul

摘要

A point cloud data transmitting method according to embodiments can comprise the steps of encoding point cloud data and transmitting a bitstream including the point cloud data. A point cloud data receiving method according to embodiments can comprise the steps of receiving a bitstream including point cloud data, decoding the point cloud data, and rendering the point cloud data.

說明書

? ?aligned(8) class VPCCSampleGroupEntry( ) extends SampleGroupDescriptionEntry(‘vpgd’){ ?unsigned int(16) sequenceParameterSetLength ; ?bit(8*sequenceParameterSetLength) sequenceParameterSet; ?unsigned int(16) patchSequenceParameterSetLength ; ?bit(8*sequenceParameterSetLength) patchSequenceParameterSet; ?}

sequenceParameterSetLength indicates the length in bytes of the VPCC sequence parameter set. sequenceParameterSetUnit contains sequence parameter set data.

patchSequenceParameterSetLength indicates the length in bytes of the VPCC patch sequence parameter set. patchSequenceParameterSetUnit contains patch sequence parameter set data.

Therefore, due to the above-described embodiments, the method/device according to the embodiments may partition a component (geometry, attribute, occupancy, etc.) of the point cloud data into a plurality of regions based on one or more V-PCC tracks. In addition, data about the partitioned regions may be carried in a single track and/or multiple tracks. Accordingly, the reception method/device according to the embodiments may decode and render the data about the point cloud object based on the partitioned region(s)/track(s) with low latency.

FIG. 28 illustrates an exemplary configuration of a V-PCC bitstream according to embodiments.

權利要求

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