1 Definition
A Data Type including the Objects of a Ultrasound Scene, Ultrasound Scenes, and their arrangement in the Scene.
2 Functional Requirements
Ultrasound Scene Descriptors include Basic Scenes in addition to Objects.
3 Syntax
https://schemas.mpai.community/CAV2/V1.0/data/UltrasoundSceneDescriptors.json
4 Semantics
| Label | Size | Description |
| Header | N1 Bytes | Ultrasound Scene Descriptors Header |
| – Standard-UltrasoundSceneDescriptors | 9 Bytes | The characters “CAE-USD-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. |
| UltrasoundSceneDescriptorsID | N5 Bytes | Identifier of Ultrasound Scene Descriptors. |
| UltrasoundSceneDescriptorsSpaceTime | N6 Bytes | Space-Time of Ultrasound Scene Descriptors. |
| UltrasoundObjectCount | N7 Bytes | Number of UltrasoundObjects in Scene. |
| UltrasoundObjects[] | N8 Bytes | Set of Ultrasound Objects. |
| – UltrasoundObjectID | N9 Bytes | ID of Ultrasound Object. |
| – UltrasoundObjectSpaceTime | N10 Bytes | Space-Time of Ultrasound Object. |
| UltrasoundSubSceneCount | N11 Bytes | Number of Ultrasound SubScenes in Scene. |
| UltrasoundSubScenes[] | N12 Bytes | Set of Ultrasound SubScenes. |
| – UltrasoundSubSceneID | N13 Bytes | ID of Ultrasound SubScene. |
| – UltrasoundSubSceneSpaceTime | N14 Bytes | Space Time of Ultrasound SubScene. |
| DescrMetadata | N15 Bytes | Descriptive Metadata |
