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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(hào)
US11968393B2
公開(kāi)日期
2024-04-23
申請(qǐng)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(shù)領(lǐng)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(shuō)明書(shū)

aligned(8) class VPCCPatchSampleGroupDescriptionEntry( ) extends SampleGroupDescriptionEntry(‘vpps’){ unsigned int(8) numOfParameterSetUnits; for (i=0; i< numOfParameterSetUnits; i++) { sample_stream_vpcc_unit parameterSetUnit; } }

numOfParameterSetUnits indicates the number of patch parameter sets signaled in the sample group description.

parameterSetUnit contains parameter sets for which a group of samples is used.

The method/device according to the embodiments may provide a transmission method for efficiently signaling parameter sets as described above.

V-PCC Video Tracks

A restricted video scheme type may be defined for such video-coded tracks because it is not meaningful to display frames decoded from attribute, geometry or occupancy map tracks without reconstruction of a point cloud on the player side. V-PCC video tracks use 4CC ‘pccv’ as in the case of a scheme type for this restricted video scheme.

Use of a V-PCC video scheme for the restricted video sample entry type ‘resv’ indicates that the decoded pictures contain attribute, geometry, or occupancy map data of the point cloud.

Use of the V-PCC video scheme is represented by the same scheme_type as ‘pccv’ (video base point cloud video) in SchemeTypeBox of RestrictedSchemeInfoBox.

Box Type: ‘pccv’

Container: SchemeInformationBox

Mandatory: Yes, when scheme_type is equal to ‘pccv’

Quantity: Zero or one

權(quán)利要求

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