1 Definition

A Data Type including the Objects of a LiDAR Scene, LiDAR Scenes, and their arrangement in the Scene.

2 Functional Requirements

LiDAR Scene Descriptors include Basic Scenes in addition to Objects.

3 Syntax

https://schemas.mpai.community/CAV2/V1.0/data/LiDARSceneDescriptors.json

4 Semantics

Label Size Description
Header N1 Bytes LiDAR Scene Descriptors Header
·       Standard-LiDAR Scene Descriptors 9 Bytes The characters “CAE-LSD-V”
·       Version N2 Bytes Major version – 1 or 2 characters
·       Dot-separator 1 Byte The character “.”
·       Subversion N3 Bytes Minor version – 1 or 2 characters
MInstanceID N4 Bytes Identifier of M-Instance.
LiDARSceneDescriptorsID N5 Bytes Identifier of LiDAR Scene Descriptors.
ObjectCount N6 Bytes Number of LiDARObjects in Scene.
LiDARSceneDescriptorsSpaceTime N7 Bytes Space and Time of the LiDAR Scene Descriptors.
LiDARSceneObjects[] N8 Bytes Set of LiDAR Objects.
– LiDARSceneObjectID N9 Bytes ID of LiDAR Object.
– LiDARSceneObjectSpaceTime N10 Bytes Space Time of LiDAR Object.
– LiDARSceneObjectAttributes[] N11 Bytes Attributes of LiDAR Object.
  – LiDARSceneObjectAttributeID N12 Bytes URI of Attribute Format Data of LiDAR Object.
  – LiDARSceneObjectAttributeFormatID N13 Bytes ID of LiDAR Object Attribute Format.
  – LiDARSceneObjectAttributeDataLength N14 Bytes Length of LiDAR Object Attribute Format Data.
  – LiDARSceneObjectAttributeDataURI N15 Bytes URI of LiDAR Object Attribute Format Data.
DescrMetadata N16 Bytes Descriptive Metadata