Data sources
AXIS Scene Metadata provides several data sources that delivers information about object in the scene. This section provides an overview of the available data sources and their availability.
Frame-by-frame object tracking
Delivers information about all tracked objects in the scene for each video frame. The source of this data is the Fusion tracker producer.
| Topic | Availability | Released | Latest version | Data type | Comments |
|---|---|---|---|---|---|
| axis.scene.frame_v1 | MQTT, ONVIF RTSP * | 12.8 | 1.0 | Frame | First stable release |
| com.axis.analytics_scene_description.v0.beta | MQTT, Message Broker | 0.1-beta | Frame | Deprecated. Superseded by axis.scene.frame_v1 |
* ONVIF RTSP stream supports a subset of the data. See ONVIF RTSP for details.
Consolidated object information
Delivers information about tracked objects when an object tracking session ends. One message per object. An object snapshot is also included if enabled. The source of this data is the Track Consolidation producer.
| Topic | Availability | Released | Latest version | Data type | Comments |
|---|---|---|---|---|---|
| axis.scene.object_track_v1 | MQTT | 12.8 | 1.0 | ObjectTrack | First stable release |
| com.axis.consolidated_track.v1.beta | MQTT, Message Broker | 1.0-beta | Consolidated Track | Deprecated. Superseded by axis.scene.object_track_v1 |
Object snapshots
Delivers image snapshots of tracked objects. One message per snapshot and one snapshot per object. This topic needs to be enabled. The source of this data is the Fusion tracker producer.
| Topic | Availability | Released | Latest version | Data type | Comments |
|---|---|---|---|---|---|
| axis.scene.object_snapshot_v1 | MQTT | 12.8 | 1.0 | ObjectSnapshot |