Metadata is any accompanying data to any basic information. Metadata refers to additional information about the content or object. It reveals information about the attributes and properties that characterize an entity, allowing you to automatically search and manage it in large information flows.
In Axxon One, you can get metadata in two ways:
- By analyzing video on the
Server by - server by detectors (see General information about detectors and their sub-detectors).
- By receiving ready metadata from the embedded camera analytics (see General information about embedded
detection tools- detectors).
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To get metadata, video is decompressed and analyzed, which leads to a heavy load on the Server server and limits the number of cameras that you can use on it. |
Metadata are VMDADB files and are stored in the object tracks database. Path to the metadata folder: <Local directory of the Server server selected when installing Axxon One (see Installation)>\vmda_db\VMDA_DB.0\vmda_schema.
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If necessary, you can place metadata in network storage (see Configuring storage of the system log and metadata). |
The following detectors are used for the Serverserver-side analysis and metadata generation:
| Detector | Possible information about an object contained in metadata from the detector |
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Neurotracker| Neural tracker | - Object type
- Object size
- Object color
- Position of an object in the frame
- Object speed
- Direction of movement of an object
|
| Object |
TrackerObject Tracker detection Plate Recognition | plate recognition BRS | - Vehicle license plate
- License plate bounding box
- Position of a license plate bounding box in the frame
- Direction of vehicle movement
- Region
- Country
- License plate type
- Vehicle manufacturer
- Vehicle model
- Vehicle color
- Vehicle class
- Vehicle bounding box
- Position of a vehicle bounding box in the frame
|
| License |
Plate Recognition Plate Recognition Plate Recognition RR—Search In Archive Plate Recognition Plate Recognition Vehicle Recognition Vehicle Recognition | Vehicle recognition RR | - Vehicle manufacturer
- Vehicle model
- Vehicle color
- Vehicle class
- Vehicle bounding box
- Position of a vehicle bounding box in the frame
- Direction of vehicle movement
|
Pose Detection Person Detection Down Detection detection detection detection | - Position of an object in the frame
- Pose of an object in the frame
|
| Equipment |
detection (PPE)| detector | - Position of an object in the frame
|
PPE detection Detection| detector | - Contents of a barcode in the frame
|
Metadata is used for the following system options to work:
TrackerNeurotrackerObject Tracker detectionForensic search MomentQuest TrackerNeurotracker detectionFace detector VI Plate Recognition Plate Recognition Plate Recognition Plate Recognition RR—Search In Archive Plate Recognition Plate Recognition Pose Detection detection (PPE)PPE detection Face detector VI Plate Recognition Plate Recognition Recognition Plate Recognition RR—Search In Archive Plate Recognition Plate Recognition Vehicle Recognition Detection TrackerNeurotracker detectionFunctions TrackerNeurotracker detectionNeurotracker Tracker detectionFace detector VI Plate Recognition Plate Recognition Plate Recognition Plate Recognition RR—Search In Archive Plate Recognition Plate Recognition Vehicle Recognition Pose Detection detection (PPE)PPE detection DetectionNeurotracker Tracker detectionFace detector VI Plate Recognition Plate Recognition Plate Recognition Plate Recognition RR—Search In Archive Plate Recognition Plate Recognition Vehicle Recognition Pose Detection detection (PPE)PPE detection Detection
