Factors Affecting the Quality of Surveillance Camera Video Images

Factors affecting the quality of surveillance camera video images

Main role: to enhance color purity degree at day, improve night vision effect, so that images during the day and night look clear and realistic.

Human eye can see a variety of wavelengths of light in nature, but the imaging element of the camera can only see part of the wavelength, so there are differences in the camera screen color and eye to see. No IR-CUT daytime surveillance cameras will become pale green, red objects become very pale color, lack of light at night, often a black screen.

IR = infrared = IR

CUT = filter, minus

IR-CUT dual filter switch is made: filter (an infrared cut filter and an all or absorbed through the spectral filter) + dynamic part (may be electromagnetic, electrical or other power source) form.

IR-CUT double filter in the camera lens group put a set of filters, according to various wavelengths of nature, to block or release the light through, get the best imaging light. When infrared sensors to detect the point outside the lens changes in light intensity, the built-in IR-CUT filter can be followed automatically, switches automatically switch according to the external light intensity. That is, during the day or night, double filter can automatically switch filters, therefore, whether in daylight or darkness, can get the best imaging results.

Infrared filter technology

The main role: to improve the image color cast problems, so the monitor screen color close to the naked eye, more real.

Infrared cameras on the market no filtering technology, the technology is green sub-wood out independent research. Mainly for monitoring color cast problems during the day on the basis of IR-CUT improved on. The imaging element of the camera, like the human eye can not feel like the various wavelengths of nature, so many wavelengths can not be reflected on the screen. Ordinary camera monitor screen becomes gray green screen color fades, screen cast serious. Infrared filter technology is set in the lens you can block certain long infrared bands through cause image distortion. All cameras’ screen without distorting true colors.