Defocus blur is constantly present in surveillance videos due to the limited depth of the field of a camera's optical systems. The defocus blur affects the ability to recognize faces and license plates.

Cognitech's Manual Defocus Deblur plug-in provides the end-user with an interface-friendly software tool that removes defocus blur without excessive 'ringing' artifacts. Traditional deblurring methods are associated with restoration errors (artifacts). Cognitech's artifact-suppressing technique removes such errors. Once the proper focus blur parameters are estimated by interactive real-time interface, and provided the image has sufficient resolution size, license plates and faces come into focus.

Here is a link to our Defocus blur interactive tutorial!  Check it out!

https://tutorials.cognitech.com/InteractiveTutorials/ManualDefocusDeblur/story.html