Vehicle Security surveillance Cameras operate


Regarding the recurrent criminal acts that occurred in public buses and cabs, the need for using a security systems are connected to police stations, where police officers can receive signals or electronic messages in case an incident happened. Now, what are vehicle security cameras? How can we use such security cameras? Where can we install them? What about passengers and transportation customers, should they know that they are monitored each time they get into a bus or a taxi? And what about violating privacy?

Vehicle security cameras are a modern innovation in the world of surveillance industry. USA laws had come up with installing these cameras in all cabs, buses and metros in order to sweep security and surveillance cautions and precautions in all public transportations, and as a result they have more control over the states security systems, thus they eliminate the average rates of assaults, encroachment or other homicidal acts. These cameras should be manufactured with high-quality features. And herein, a list of the most common and important features of vehicle security cameras.

Auto White Balance

AWB allows your camera to remove unrealistic colorcasts so that objects, which appear white to the eye, are rendered white by your camera. An incorrect white balance can cast orange, blue, or green hues onto your image.

Automatic Gain Control

AGC adjusts the video so that a more consistent level of brightness is achieved. The signal is fed back to adjust the gain to a median level for a range of input signal levels. If the brightness is weak, AGC boosts it. If the image is too bright, AGC reduces the brightness.

Back Light Compensation

BLC is useful for adjusting the brightness of an image. It is specifically video gain used to correct the exposure of people or objects in front of a bright light source, which causes the subject to appear as a silhouette. The prime example of when this feature is needed is when a person is entering through a doorway and the light from behind him makes his image dark. With BLC, his image is corrected for proper illumination.

CCD imager

A charge-coupled device is a specialized type of integrated circuit located behind the cameras lens. The lens focuses a small image of the scene onto the CCD imager, which scans the image and, with the help of other electronics, converts it to a video signal for use by a DVR or Monitor.

CS Mount

CS mount is the industry standard lens mount. It differs from a C Mount in that a CS Mount has a flange focal distance (FFD) of 12.5 millimeters while a C mount has a FFD of 17.5 millimeters. An FFD is the distance from the mounting flange (where the lens comes in contact with the camera) to the focal point. A C Mount lens is compatible with a CS Mount camera with the addition of an adapter ring, called a C ring.


IR is the spectrum of radiation just beyond red light in the visible range and below microwave radiation. Night-vision cameras come equipped with IR lights, which allow the camera to see without any light source.


A lux is an International System of Units for illumination equal to one lumen per square meter. It is a measure of apparent intensity of light hitting a surface. A lumen is the measure of perceived power of light.

Wide Dynamic Range

WDR doubles the exposures per frame and controls the length of time that the Automatic Electronic Shutter is open. A short exposure and a long exposure image are taken by the camera. The resulting two images per frame are then combined so dark and bright areas are reproduced clearly, with detail in both bright and dark areas. In this way, the bright areas are not too washed out and the dark areas are not too black.

Vehicle security cameras can be installed either at the inside head of the vehicle or at the back, and wither ways, police can guarantee that the driver and the passengers are fine, and keep track on them if something goes wrong.

Regarding the passengers privacy, I think, according to the state's security laws, the driver should past a notice on a seen place where all passengers can read and know that there is a security camera, either visible or hidden, in the car, or the bus. Thereupon, by getting in the bus to move to the other station, they approve to be monitored and observed all the journey long, and accredit the agreement to use the recorded videos as a court evidence in case of a criminal act occurred.

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