Function
Ref. Model
I/O Data
SubAIMs
JSON MData
Profiles
Ref. Software
Conformance
Performance
1 Functions
The Visual Scene Description (PGM‑VSD) AIM receives a Visual Object and produces the Visual Scene Descriptors describing it. In the PGM‑AUA context, the AIM operates under the control of a Visual CXT Directive issued by A‑User Control (through the CXT‑AUS Interface) and reports a Visual CXT Status on completion. The AIM references the Input and Output Data Types by name; their structure is specified by the respective Data Type definitions.
| Receives | Visual Object | Visual Objects in the Visual Scene. |
| Visual CXT Directive | Control directive from A‑User Control specifying scope, framing, and acquisition parameters for visual scene description. | |
| Produces | Visual Scene Descriptors | Descriptors of the Visual Scene. |
| Visual CXT Status | Status information describing the execution and outcome of Visual Scene Description processing. |
2 Reference Model
Figure 1 depicts the Reference Model of the Visual Scene Description (PGM‑VSD) AIM.
Figure 1 – The Visual Scene Description (PGM‑VSD) AIM
3 I/O Data
Table 1 specifies the Input and Output Data of the Visual Scene Description (PGM‑VSD) AIM.
| Input | Description |
|---|---|
| Visual Object | Visual Objects in the Visual Scene. |
| Visual CXT Directive | Control directive from A‑User Control specifying scope, framing, and acquisition parameters for visual scene description. |
| Output | Description |
| Visual Scene Descriptors | Descriptors of the Visual Scene. |
| Visual CXT Status | Status information describing the execution and outcome of Visual Scene Description processing. |
4 SubAIMs
No SubAIMs.
5 JSON Metadata
https://schemas.mpai.community/PGM1/V1.0/AIMs/VisualSceneDescription.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 Visual Scene Description (PGM‑VSD) 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.
| Receives | Visual Object | Shall validate against Visual Object schema. Visual Data shall conform with Visual Qualifier. |
| Visual CXT Directive | Shall validate against Visual CXT Directive schema. | |
| Produces | Visual Scene Descriptors | Shall validate against Visual Scene Descriptors schema. |
| Visual CXT Status | Shall validate against Visual CXT Status schema. |
9 Performance Assessment
Not part of this specification.
