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Radar motion tracker

The radar motion tracker module uses a device's built-in radar to track objects. Other trackers, such as the Fusion Tracker, can use this data. It can also be consumed directly.

For more information, see Radar Integration.

Instances​

A device is preconfigured with a fixed number of instances of this module type.

Devices that include radar sensors will have one instance of the radar motion tracker.

Function​

The radar motion tracker tracks and estimates state of objects in the scene. The estimated state of each tracked object is continually updated to provide up to date estimates for each object's state currently present in the scene.

Estimated object state​

General:

  • ClassCandidate - Object classification
    • Human
    • Vehicle
    • Unknown

2D Image Perspective:

  • Bounding Box - Position of the object in the radar overview image
  • Polygon - Position of the object in the radar overview image as a polygon
  • CenterOfGravity - Center of gravity of the object

3D Device Perspective:

  • Spherical Coordinate - Position of the object in spherical coordinates
  • PolarCoordinate - Position of the object in polar coordinates relative to device
  • Velocity - Velocity of the object
  • Speed - Speed of the object
  • Direction - Direction of the object
  • Angle - Direction of the object
  • Size - Size of the object

3D World Perspective:

Geographic coordinates​

The geographic coordinates feature allows the object state in the output to include global geographical coordinates. Configure the device correctly so it can calculate accurate coordinates. Coordinates are calculated using the lowest middle point of the estimated object position. As a result, coordinates may be inaccurate when a human's feet aren't visible.

Read the how-to on how to enable this feature.

Output protocols​

ProtocolName/addressFormatGuide
RTSPAddress: rtsp://ip-address/axis-media/media.amp?analytics=polygon source: RadarMotionTrackerONVIF tt:FrameConfigure scene metadata over RTSP, remember to use correct rtsp address.

ONVIF extension​

<tt:Extension>
    <axrt:RadarObjectInfo xmlns:axrt="http://www.axis.com/2017/radar/axrt">
        <axrt:PolarCoordinate angle="70" range="50" elevation-angle="0" />
        <axrt:Velocity m-s="10" angle="10" elevation-angle="0" />
        <axrt:Size m="10" />
    </axrt:RadarObjectInfo>
</tt:Extension>