Configuring intrusion detector perspective settings in KiwiVision™ - KiwiVision™ 3.1

KiwiVision Video Analytics Plugin Guide 3.1

Applies to
KiwiVision™ 3.1
Last updated
2018-03-16
Content type
Guides
Guides > Plugin and extension guides
Language
English (United States)
Product
KiwiVision™
Version
3.1

Before you can monitor KiwiVision™ in Security Desk, you must configure intrusion detector perspective settings for your camera.

Procedure

  1. In Config Tool, select your intrusion detector.
  2. In the Perspective tab, configure the Perspective objects in the video.

    1. Click and drag each object to the location that you want to monitor using video analytics.
      Near object
      The Near object rectangle is used to set the approximate size of objects or individuals that you want to detect in the image foreground (close to the camera).
      Far object
      The Far object rectangle is used to set the approximate size of objects or individuals that you want to detect in the image background (far from the camera).
      Horizon
      The Horizon tool is used to set the orientation of the camera relative to the ground plane. This is done visually by configuring the up-direction of the camera in the scene with an arrow control (blue). For example, a camera mounted sideways on a wall might have the horizon arrow pointing to the side.
    2. Click and drag the white dots to adjust the object size or rotate the camera horizon as required.
  3. In the Perspective section, configure the perspective settings as required:
    Object height
    Defines the actual object height for near and far objects that you want to monitor for intrusion. The default setting is 1.8 m (5.7 ft), the average height of a person. You can specify values in the range 1 - 2 m (3.3 - 6.6 ft).
    Tip: Ensure that the Object height defined in the Perspective section matches the actual height represented by the near and far objects drawn or modified in the video.
    Block size
    Defines the size of analysis units relative to the specified object or person size in the image. If you set a low value, the required computing power increases, but the distinction between different object sizes in the image is more accurate. The default setting is 40 %. You can specify values in the range 0 - 100 %.
    Min. block size
    Defines how large (in pixels) an analysis unit must be in the image. The default setting is 18 px. You can specify values in the range 10 - 270 px.
  4. Click Apply.

After you finish

You can now configure your intrusion detector Area tab settings.