Active filtering

The Active filtering mode is used to improve capturing in daylight conditions. For marker cameras, it is used both in marker and video mode. For Miqus Video and Hybrid cameras, active filtering is only applied to the marker mode and any reduced image size is only displayed in Marker or Intensity mode.

The Active filtering mode can be activated individually on each camera. However usually it is best to activate it on all cameras in the system, but for example if only a few cameras have a lot of sunlight then you can activate Active filtering only for those cameras. For more information about active filtering see chapter Active filtering for capturing outdoors.

There are two settings for the Active filtering mode:

• Continuous (Recommended)
  The Continuous setting is the default and recommended filtering setting. When activated the camera captures an extra image before the actual image. With the exact same settings as the actual image except that there is no IR flash. The extra image is then subtracted from the actual image so that the background light is suppressed. This helps in for example daylight conditions where the background light is much brighter than indoors.

  The maximum capture rate is limited to about 50% of the cameras normal maximum capture rate when Active filtering is activated. This is because there are two images captured for every frame.

• Single
  With the Single setting the camera only captures an image before starting a measurement. As for the Continuous settings the extra image uses no IR flash but is otherwise the same as the actual image. This setting can be used if you have a very static setup.