General information on metadata

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 this User Guide, metadata is the accompanying data that describes the behavior of objects in the camera field of view.

In Axxon PSIM, you can obtain metadata in two ways:

When analyzing video images on the Server by detection tools.
When receiving ready metadata from the embedded analytics of cameras (see Embedded detectors).

Attention!

To obtain metadata, video decompression and analysis takes place, which leads to a heavy load on the Server and limits the number of cameras used on it.

The following tools can be used to analyze video images on the Server and create metadata:

Detection tool	Information contained in metadata from a detection tool
Barcode detection	About the contents of all barcodes in the frame
Equipment detection (PPE)	About the position of all the people in the frame
Neurotracker	About all moving objects in the frame: type, their position in the frame, size, direction of movement, speed, color, and so on
Person location tracker	About the position and pose (skeleton) of all people in the frame
Pose detection
Shooter detection
Handrail grip detection

Metadata is stored as tracks of objects in the local VMDA Server directory on the disk that was selected when creating the VMDA metadata repository (see Creating and configuring VMDA metadata storage), in the vmda.schema file.

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Documentation for DetectorPack PSIM 1.0.1.