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Digital Noise Reduction (DNR)
Published at 14 / 3 / 2008 |Archived in: news, video
Digital Noise Reduction (DNR) is a last generation function that allows to increase images quality. This system (also known as SNR, Signal Noise Reduction) reduces signal noise and it is used in every field concerning images.
Obviously in cctv this function is very usefull cause it allows to have clear images also in difficoult conditions.
Noise increases in particular condition, like dark light, zoom or RG cable use (the most used in cctv).
So in our field DNR function becames very important.
HR models DNR is a filter that delete higher frequences, cleaning th image.
HR cameras have 4 adjustable levels of DNR and it is possible to choose the best setting for needed installation condtions by the usefull remote control.
But surely the video is clearer about working of this important function…