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Function
Ref. Model
I/O Data
SubAIMs
JSON MData
Profiles
Ref. Software
Conformance
Performance
1 Functions
The 3D Model Scene Description (OSD‑3SD) AIM receives 3D Model Objects, the Descriptors of the Scene the Objects belong to, and their Space-Time information as inputs and produces the Descriptors of a Scene composed of 3D Model Objects and Scenes. The OSD‑3SD AIM may also produce an Alert conveying information on potential anomalies in the input 3D Model Objects:
| Receives | Space-Time | Of the input Objects having the same time base. |
| 3D Model Objects | Individual Objects. | |
| Scene Descriptors | Additional Descriptors of a Scene the Objects belong to. | |
| Integrates | Space-Time and 3D Model Object | With Scene Descriptors. |
| Produces | 3D Model Scene Descriptors | Output of AIM. |
| Alert | Signalling potential anomalies in Objects. |
2 Reference Model
Figure 1 depicts the Reference Model of the 3D Model Scene Description (OSD‑3SD) AIM.
Figure 1 – The 3D Model Scene Description (OSD‑3SD) AIM
3 I/O Data
Table 1 specifies the Input and Output Data of the 3D Model Scene Description (OSD‑3SD) AIM.
Table 1 – I/O Data of the 3D Model Scene Description (OSD‑3SD) AIM
| Input | Description |
|---|---|
| Space-Time | Space-Time of input Objects. |
| 3D Model Objects | Input 3D Model Objects. |
| Scene Descriptors | Input Scene Descriptors. |
| Output | Description |
| 3D Model Scene Descriptors | The output 3D Model Scene Descriptors. |
| Alert | Data signalling potential anomalies in Object. |
4 SubAIMs
No SubAIMs.
5 JSON Metadata
https://schemas.mpai.community/OSD/V1.5/AIMs/3DModelSceneDescription.json
6 Profiles
No Profiles.
7 Reference Software
Not part of this specification.
8 Conformance Testing
Table 2 provides the Conformance Testing Method for the OSD‑3SD AIM.
If a schema contains references to other schemas, conformance of data for the primary schema implies that any data referencing a secondary schema shall also validate against the relevant schema, if present, and conform with the Qualifier, if present.
Table 2 – Conformance Testing Method for the OSD‑3SD AIM
| Receives | Space-Time | Shall validate against Space-Time schema. |
| 3D Model Objects | Shall validate against 3D Model Object schema. Media-specific Data shall conform with their Qualifiers. | |
| Scene Descriptors | Shall validate against Scene Descriptors schema. | |
| Produces | 3D Model Scene Descriptors | Shall validate against 3D Model Scene Descriptors schema. |
| Alert | Shall validate against Alert schema. |
9 Performance Assessment
Not part of this specification.
