1 Definition
A Data Type including the Objects of a Visual Scene, the Visual Sub-Scenes, and their arrangement in the Scene.
2 Functional Requirements
Visual Scene Descriptors include Sub-Scene Descriptors in addition to Objects.
3 Syntax
https://schemas.mpai.community/OSD/V1.1/data/VisualSceneDescriptors.json
4 Semantics
| Label | Size | Description |
| Header | N1 Bytes | Visual Scene Descriptors Header |
| – Standard-Visual Scene Descriptors | 9 Bytes | The characters “OSD-VSD-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. |
| VisualSceneDescriptorsID | N5 Bytes | Identifier of Visual Scene Descriptors. |
| ObjectCount | N6 Bytes | Number of Visual Objects in Scene. |
| SubSceneCount | N7 Bytes | Number of Visual Scenes in Scene. |
| VisualSceneDescriptorsSpaceTime | N8 Bytes | Space and Time of Visual Scene Descriptors. |
| VisualSceneObjects[] | N9 Bytes | Set of Visual Objects. |
| – VisualSceneObject | N10 Bytes | Visual Object. |
| – VisualSceneObjectSpaceTime | N11 Bytes | Space Time of Visual Object. |
| VisualSceneSubScenes[] | N9 Bytes | Set of Visual Sub-Scenes. |
| – VisualSceneSubScene | N10 Bytes | Visual Sub-Scene. |
| – VisualSceneSubSceneSpaceTime | N11 Bytes | Space Time of Visual Sub-Scene. |
| DescrMetadata | N16 Bytes | Descriptive Metadata |
