*Guidelines

Owned by Tom Polman
Last updated: Sept 21, 2022
2 min read

Technical Article | TA-20201002-TP-16

VDG Sense | Video Content Analyses | ObjectR Advanced

For an optimal use of VDG Sense with ObjectR, the guidelines should be closely followed.

Lighting:

  • Don’t use domes, the shape of the dome could causes problems with rain.

  • Disable OSD.

  • Disable auto-shutter.

  • Choose right lens for application.

    • Lens and camera type must be suitable for both daylight and infrared.

    • Viewing angle should fit detection zone.

  • Make sure there is sufficient lighting throughout the scene.

    Virtual fencing:

    • The camera view should not be obstructed by any (semi-) stationary objects such as plants, trees etc.

    • Detection zones should not be placed on the opposite side of a road, to avoid occlusion by passing trucks.

    • Camera should be fixed as steadily as possible to avoid shaking due to wind, passing vehicles.

    • Max distance on normal camera is 75m, including blind spot.

    • Object must be at least 5 pixels wide and 20 pixels high. Another definition is ”pixels on target”, which would be 5×20=100.

 

  • Camera images must overlap such that relevant objects are always completely visible on at least one camera.

 

  • Keep the blind area underneath the camera (cam2) in mind when its mounted at a corner. Again, cam1 must cover this area.