| Definition | Functional Requirements | Syntax | Semantics | Conformance Testing | Performance Assessment |
1 Definition
An Item including a series of Ultrasound Scene Descriptors for a duration.
2 Functional Requirements
An Ultrasound Event Descriptors instance must include:
- The Ultrasound Event Descriptors Header
- The ID of the Ultrasound Event Descriptors.
- The IDs or the Ultrasound Scene Descriptors of the Ultrasound Scene Descriptors included in the Ultrasound Evenet instance.
An Ultrasound Event Descriptors instance may include:
- The ID of a Virtual Space (M-Instance) to which it refers.
- The ID of a U-Environment to which it refers.
- The Space-Time information of the Ultrasound Event instance.
- Information about this Ultrasound Event instance.
- Descriptive Metadata.
3 Syntax
https://schemas.mpai.community/OSD/V1.5/data/UltrasoundEventDescriptors.json
4 Semantics
| Label | Description |
| Header | Ultrasound Event Descriptors Header – Standard “OSD-UED-Vx.y” |
| MInstanceID | Identifier of the M-Instance. |
| UEnvironment | Identifier of the U-Environment. |
| UltrasoundEventDescriptorsID | ID of this Ultrasound Event Descriptors instance. |
| UltrasoundEventDescriptorsTime | Space and Time of Ultrasound Event Descriptors. |
| UltrasoundEventDescriptorsSpaceTime | Space and Time of Ultrasound Event Descriptors. |
| UltrasoundSceneDescriptors[] | Set of Ultrasound Scene Descriptors in the Ultrasound Event. |
| – UltrasoundSceneObjectSpaceTime | A set of Ultrasound Scene Descriptors of the Ultrasound Event. |
| DataXMData | Information on this Ultrasound Event Descriptors instance. |
| DescrMetadata | Descriptive Metadata |
5 Conformance Testing
A Data instance Conforms with MPAI-OSD Ultrasound Event Descriptors (OSD-VED) if:
- The Data validates against the Ultrasound Event Descriptors’ JSON Schema.
- All Data in the Ultrasound Event Descriptors’ JSON Schema
- Have the specified type
- Validate against their JSON Schemas
- Conform with their Data Qualifiers if present.
