Low light, fast action

 
Problem situation: Detect moving objects under low light conditions

We expect to suffer by blurry images due to low shutter speeds (non frozen action), and lower frame rates which limits our action analysis. We may want to use full sensitivity (gain) of the camera, but this increases the noise level and cancels out details needed for image analysis.
 

 
Remedy
Add additional light sources to the image surroundings or let the camera zoom out.  Zooming out will reduce the relative speed between camera and moving objects. By lowering the relative speed of objects, they may be frozen in action at a lower shutter speed. Adding light to the scene is always a good idea. For cameras with IR cut filters, you have the choice of traditional light sources or IR illuminators in order to improve image details. If zoom lenses are not in use, then the camera may be moved away from action area, to obtain the same effect.