Go to MPAI-OSD Data Types

Definition Functional Requirements Syntax Semantics Conformance Testing Performance Assessment

1      Definition

A Data Type describing the arrangement of the LiDAR Objects in a scene.

2      Functional Requirements

A Basic LiDAR Scene Geometry must include:

  1. The Basic LiDAR Scene Geometry Header
  2. The ID of the Basic LiDAR Scene Geometry.
  3. The ID of the LiDAR Objects in the LiDAR Scene.
  4. The Space-Time information of the LiDAR Objects inside the LiDAR Scene.

A Basic LiDAR Scene Geometry may include:

  1. The ID of a Virtual Space (M-Instance) where it is or it is intended to be located.
  2. The ID of a U-Environment where it is or it is intended to be located.
  3. The Qualifiers of the Basic LiDAR Object Data.
  4. The Space-Time information of the Basic LiDAR Scene.
  5. Information about this Basic LiDAR Scene Geometry.
  6. Descriptive Metadata.

3      Syntax

https://schemas.mpai.community/OSD/V1.5/data/BasicLiDARSceneGeometry.json

4      Semantics

Label Description
Header Basic LiDAR Scene Geometry Header – Standard “OSD-BLG-Vx.y”
MInstanceID Identifier of the M-Instance.
UEnvironment Identifier of the U-Environment.
LiDARSceneGeometryID ID of this LiDAR Scene Geometry instance.
LiDARSceneGeometryTime Space and Time of LiDAR Scene Geometry.
LiDARObjectCount Number of LiDARObjects in Scene.
LiDARSceneGeometrySpaceTime Space and Time of LiDAR Scene Geometry.
BasicLiDARSceneObjects[] Set of Data related to LiDARObjects in the LiDAR Scene.
– LiDARSceneObjectQualifiers Qualifiers of the LiDAR Object in the LiDAR Scene.
– BasicLiDARSceneObjectSpaceTime Space and Time of LiDAR Object in the LiDAR Scene.
DataXMData Information on this Basic LiDAR Scene Geometry instance.
DescrMetadata Descriptive Metadata

5     Conformance Testing

A Data instance Conforms with Basic LiDAR Scene Geometry (OSD-BLG) if:

  1. The Data validates against the Basic LiDAR Scene Geometry’s JSON Schema.
  2. All Data in the Basic LiDAR Scene Geometry’s JSON Schema
    1. Have the specified type
    2. Validate against their JSON Schemas
    3. Conform with their Data Qualifiers.

6     Performance Assessment