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Function
Ref. Model
I/O Data
SubAIMs
JSON MData
Profiles
Ref. Software
Conformance
Performance
1 Functions
The Scene Description (OSD‑SCD) AIM receives Objects and their Space-Time information as inputs and produces the Descriptors of a Scene composed of Objects and Scenes. The OSD‑SCD AIM may also produce an Alert conveying information on potential anomalies in the input Objects:
| Receives | Space-Time | Of the input Objects having the same time base. |
| Objects | Individual Objects. | |
| Scene Descriptors | Scene the Objects belong to. | |
| Integrates | Space-Time and Object | With Scene Descriptors. |
| Produces | Scene Descriptors | Output of AIM. |
| Alert | Signalling potential anomalies in Object. |
2 Reference Model
Figure 1 depicts the Reference Model of the Scene Description (OSD‑SCD) AIM.
Figure 1 – The Scene Description (OSD‑SCD) AIM
3 I/O Data
Table 1 specifies the Input and Output Data of the Scene Description (OSD‑SCD) AIM.
Table 1 – I/O Data of the Scene Description (OSD‑SCD) AIM
| Input | Description |
|---|---|
| Space-Time | Space-Time of input Objects. |
| Objects | Input Objects. |
| Scene Descriptors | Input Scene Descriptors. |
| Output | Description |
| Scene Descriptors | The output Scene Descriptors. |
| Alert | Data signalling potential anomalies in Object. |
4 SubAIMs
No SubAIMs.
5 JSON Metadata
https://schemas.mpai.community/OSD/V1.5/AIMs/SceneDescription.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‑SCD 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‑SCD AIM
| Receives | Space-Time | Shall validate against Space-Time schema. |
| Objects | Shall validate against Object schema. Media-specific Data shall conform with their Qualifiers. | |
| Scene Descriptors | Shall validate against Scene Descriptors schema. | |
| Produces | Scene Descriptors | Shall validate against Scene Descriptors schema. |
| Alert | Shall validate against Alert schema. |
9 Performance Assessment
Not part of this specification.
