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Metadata is information that describes object-related content the behavior of objects in the camera FOV.
In Axxon One,metadata you can be obtained get metadata in two ways:
- By analyzing video stream on Server the Server by detection tools.
- By receiving ready metadata from the embedded camera embedded analytics (see Embedded Detection Tools).
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To get metadata from video, you have to de-compress and analyze the video stream, which increases the , video is decompressed and analyzed, which leads to a heavy load on the Server , thus limiting and limits the number of available camera channelscameras that you can use on it. |
The following tools are used for the Server-side analysis and metadata generation:
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| Detection tool | Information contained in metadata from the detection tool |
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| Neurotracker | Metadata from Object Tracker and Neurotracker contains |
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the following information about all objects moving |
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in |
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the frame: object type, position in the frame, size and color, |
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speed |
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, direction |
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of movement, and so on |
| Object Tracker |
| Motion detection |
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Metadata from Motion detection |
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is less accurate |
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and doesn't contain information about object type and color |
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| Detection VA | Metadata from Face Detection contains a face bounding box, its position in the frame, and a face vector |
| Face Detection TV | |
| Face Detection VL | |
| License Plate Recognition |
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| BRS | Metadata from License Plate Recognition |
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detection tools contains a license plate bounding |
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box, its position in the frame, |
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and a vehicle license plate |
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| License Plate Recognition IV | |
| License Plate Recognition RR | |
| License Plate Recognition RR—Search In Archive | |
| License Plate Recognition RR—Parking | |
| License plate recognition (VT) | |
| Vehicle Recognition RR | Metadata from Vehicle Recognition contains a vehicle |
bounding box that is built around vehicle outline, position of the vehicle bounding box in the frame, information about the vehicle model, manufacturer, color, and class |
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Detection and its sub-tools: | Metadata from Pose Detection tools contains information about |
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| positions and pose (skeleton) of all people in |
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| the frame |
| Equipment detection tool (PPE) |
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Metadata from Equipment detection |
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contains information about the position of all people in |
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| Metadata from |
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| Barcode Detection contains information about the contents of all barcodes in the frame |
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The metadata Metadata is used for the following system options to work:
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If a camera uses several sources of metadata, the required source is selected automatically, except for MomentQuest. To perform face/license number searchesplate search, only metadata from the corresponding detection tools is used. |
By default, metadata Metadata is stored as files in the object tracks database in the local Server directory that was selected when installing Axxon One (see Installation) in the vmda_db\VMDA_DB.0\vmda_schema subfolder.
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