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Documentation for Axxon One 2.0. Documentation for other versions of Axxon One is available too.
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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 detection tools (see General information about detection tools and their sub-tools).
- By receiving ready metadata from the embedded camera analytics (see Embedded Detection Tools).
Attention!
To get metadata, video is decompressed and analyzed, which leads to a heavy load on the 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 selected when installing Axxon One (see Installation)>\vmda_db\VMDA_DB.0\vmda_schema.
Note
If necessary, you can place metadata in network storage (see Configuring storage of the system log and metadata).
The following tools are used for the Server-side analysis and metadata generation:
| Detection tool | Possible information about an object contained in metadata from the detection tool |
|---|---|
| Neurotracker |
|
| Object Tracker | |
| Motion detection |
|
| Face Detection VA |
|
| Face Detection TV | |
| Face Detection VL | |
| License Plate Recognition BRS |
|
| 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 |
|
Pose Detection and its sub-tools: |
|
| Equipment detection tool (PPE) |
|
| PPE detection VL | |
| Barcode Detection |
|
Metadata is used for the following system options to work:
Overview
Content Tools