Radius Security Solutions

The real strength of MOBOTIX cameras are their freely configurable exposure zones which are unique worldwide. Variable exposure windows (= exposure zones) can be defined in the image for automatic exposure control. In this case, exposure time is controlled exclusively on the basis of the exposure zones specified by the user. This allows the main image area settings to be optimized in backlit scenes, irrespective of the intensity of the backlight exposure.

In order to generate top-quality images in all weather and lighting conditions, the raw images produced by the MOBOTIX camera sensor are enhanced independently. For this purpose, the following automatic functions are integrated into the cameras:

• Exposure time: The camera automatically selects this between the minimum and maximum settings (1/8000s - 1s) and executes it on a purely electronic basis, without mechanical components.
• Pre-amplification: The actual camera selects the pre-amplification in the digital image sensor, irrespective of the lighting conditions and the exposure time.
• White balance: The white balance is performed automatically for each image and can be limited to specific reference regions within the image. This results in the MOBOTIX cameras' high degree of color brilliance and precision.
• Auto contrast: In order to ensure that image contrast remains high in dull weather conditions (rain, mist), the MOBOTIX cameras automatically boost each image so as always to make use of the entire brightness range from 0 to 100 percent.
• Sharpness: The high quality of image delivered by MOBOTIX cameras is attributable, among other things, to the integrated software sharpness filter, which also compensates greatly for ageing and dirt on the lens.

In MOBOTIX cameras each image passes through all the automatic functions, which means that every live or stored image is always regulated to optimum effect.

Variable Exposure Zones

The exposure zones can even be selected to such a degree of freedom that the individual street lights in the street scene can be excluded from affecting the exposure control.

A weighting can be set in order to regulate the exposure inside and outside the exposure zones with precision. The automatic exposure function first of all determines the two possible settings within and outside the exposure windows in order to determine their average in accordance with the specified weighting (0-100 percent).