1     Definition 2     Functional Requirements 3     Syntax
4     Semantics 5    Conformance Testing 6     Performance Assessment

1      Definition

A Data Type including a collection of Ultrasound Scene Event.

In the following, Scene should be read as Ultrasound Scene.

2      Functional Requirements

An Scene Event may include:

  1. ID of a Virtual Space (M-Instance) where it is or intended to be located.
  2. ID of the Scene Event.
  3. Scene Descriptors included in the Scene Event.
  4. Annotation data set including, for each Annotation:
    1. Scene Descriptors the Annotation refers to.
    2. Rights to perform Actions on the Annotation.
  5. The Rights that may be exercised on the Scene Event.

3      Syntax

https://schemas.mpai.community/OSD/V1.3/data/UltrasoundSceneEvent.json

4      Semantics

Label Size Description
Header N1 Bytes Ultrasound Scene Event Header
– Standard-UltrasoundSceneEvent 9 Bytes The characters “OSD-USE-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.
SceneEventID N5 Bytes Identifier of the Scene Event.
SceneEventTime N6 Bytes Start and End Time of Scene Event.
SceneDescriptors[] N7 Bytes Set of Scene Descriptors.
– SceneDescriptors N8 Bytes ID or Descriptors of a specific Scene.
Annotations[] N9 Bytes Set of Annotations.
– Annotation N10 Bytes An Annotation.
– SceneDescriptorsID N11 Bytes The ID of the Scene the Annotation refers to.
– Rights N12 Bytes Actions that may be performed on the Annotation
Rights N13 Bytes Actions that may be performed on the Scene Event.
DescrMetadata N14 Bytes Descriptive Metadata

5     Conformance Testing

A Data instance Conforms with Ultrasound Scene Event (OSD-USE) V1.3 if:

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

6     Performance Assessment