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 - server by
detection tools - detectors (see General information about
detection tools - detectors and their sub-
tools- detectors).
- By receiving ready metadata from the embedded camera analytics (see General information about embedded
detection tools- detectors).
| Note |
|---|
|
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 see Installation)>\vmda_db\VMDA_DB.0\vmda_schema.
| Info |
|---|
|
If necessary, you can place metadata in network storage (see Configuring storage of the system log and metadata). |
The following tools detectors are used for the Serverserver-side analysis and metadata generation:
Detection tool| Detector | Possible information about an object contained in metadata from the |
|---|
detection toolNeurotracker| 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 Detection | detector VA | - Face vector
- Face bounding box
- Gender
- Age
- Position of a
|
face - face bounding box in the frame
|
| Face |
Detection 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 Plate Recognition Plate Recognition Plate Recognition RR—Search In Archive Plate Recognition Vehicle Recognition | Vehicle recognition RR | - Vehicle manufacturer
- Vehicle model
- Vehicle color
- Vehicle class
- Vehicle bounding box
- Position of a
|
vehicle bounding - vehicle bounding box in the frame
- Direction of vehicle movement
|
Pose Detection tools Person Detection Down Detection detection detection detectionPeople masking | - 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:
Option | Required source of metadata |
|---|
Standard |
detection tools TrackerNeurotrackerObject Tracker detectionGeneral information about embedded detection toolsForensic search MomentQuest | Object TrackerNeurotracker detection Detection Detection Detection Plate Recognition Plate Recognition Plate Recognition Plate Recognition RR—Search In Archive Plate Recognition Pose Detection detection (PPE)PPE detection VLGeneral information about embedded detection tools Detection Detection Detection Vehicle Recognition Detection TrackerNeurotracker detectionGeneral information about embedded detection toolsFunctions of TrackerNeurotracker detectionGeneral information about embedded detection toolsNeurotracker Tracker detection Detection Detection Detection Plate Recognition Plate Recognition Plate Recognition Plate Recognition RR—Search In Archive Plate Recognition Vehicle Recognition Pose Detection detection (PPE)PPE detection DetectionGeneral information about embedded detection toolsNeurotracker Tracker detection Detection Detection Detection Plate Recognition Plate Recognition Plate Recognition Plate Recognition RR—Search In Archive Plate Recognition Vehicle Recognition Pose Detection detection (PPE)PPE detection DetectionGeneral information about embedded detection tools
