{"id":1032,"date":"2016-09-07T23:15:12","date_gmt":"2016-09-07T21:15:12","guid":{"rendered":"http:\/\/idisglobal.solutions\/?post_type=avada_faq&p=1032"},"modified":"2016-11-02T11:09:42","modified_gmt":"2016-11-02T10:09:42","slug":"icr-tdn-en-ddn","status":"publish","type":"avada_faq","link":"https:\/\/www.idisglobal.solutions\/en\/faq-items\/icr-tdn-en-ddn\/","title":{"rendered":"What is ICR, TDN, and DDN?"},"content":{"rendered":"
ICR (Infrared Cut Filter) is used with color CCD or CMOS image sensors to produce accurate color images. During the day, the camera uses an ICR to reflect or block mid-infrared wavelengths while passing visible lights. However, as light diminishes below a certain level, some cameras can automatically turn off ICR functionality to deliver high-quality, black and white image using infrared light.<\/p>\n

TDN (True Day\/Night) technology supports night vision capability by implementing a physical ICR that is removed by a mechanical motor.<\/p>\n

DDN (Digital Day\/Night) technology allows for viewing in both day and night conditions, without the use of a ICR. As light diminishes below a certain level, DDN technology switches color image to black and white image to offer similar benefits to TDN with a lower cost. At night, the captured image depends on the lighting and infrared waves off objects.

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