Vitek VTD-A4F/IWM User Manual page 17

DNR is a technique of removing image noise from a video signal by applying a digital comb lter.
It makes images clearer and reduces video le size.
This Product has a feature that allows you to observe movement in 3 di erent areas on the screen and the
word MOTION will appear on screen when motion is detected.
osD operaTion
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