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AHD Car Camera Bus reversing high-definition camera blind spot rear view infrared in car monitoring reversing image
In order to ensure road safety surveillance the onboard camera
function needs to operate around the clock as much as
possible Car mounted cameras perceive the
surrounding environment through photosensitivity and
algorithms Therefore in scenarios with insufficient
lighting such as driving at night or passing through tunnels
it is necessary to enhance the camera's night vision
ability At present car night
vision systems can be divided into three categories based on
imaging principles and lenses : low
light near - infrared and far -
infrared .
The existing night vision assistance system can recognize
pedestrians beyond the high beam range and predict danger in
advance . Advance prediction to assist drivers in safe
driving .
Low light : Literally it refers to the process of
amplifying a small amount of visible light
received ultimately capturing and projecting an
image onto the corresponding display screen . The imaging
principle of low light and general cameras is
consistent both of which achieve night vision
through visible light but require a certain
visible light environment
Near car camera infrared night vision : also known as active
infrared night vision technology refers to using a
strong infrared emission source to illuminate the target during
operation and using the infrared reflected back by
the target to obtain the image of the object . Near infrared
light operating in the wavelength range of 800 - 1000nm .
Far infrared night vision (thermal imaging system ) : also
known as passive infrared night vision technology
mainly uses the infrared radiation emitted by the object
itself to image which is also known as thermal
imaging . The thermal imaging system is based on the
difference in infrared emissivity formed by the temperature
difference between the target and the background . It uses
radiation temperature measurement technology to measure the
radiation intensity of the target point by
point forming a visible thermal image of the
target . Its theoretical working wavelength is between 1 -
14um but generally far infrared night vision
mainly uses shortwave (3 μ M-5 μ m) And long wave (8 μ M - 14 μ m)
These two types .
Among them the implementation of low light night
vision for car mounted cameras needs to be improved from CMOS and
algorithms ; And infrared night vision requires specialized
infrared lenses to ensure the entry of infrared light . In
addition low light night vision can see color
images while infrared cannot achieve color
We are a professional manufacturer of research and development production and vehicle monitoring
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Please contact us by email : firecore1688@163.com