JAI VISCAM 1000 System, Руководство по установке

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System Set-Up 31
VISCAM 1000 Systems
Figure 34. Example of different multi-slope integration settings
If the HDR functionality is switched off then the sensor will have a linear response to the light. If HDR is
enabled then the slope of the response curve will get a “knee-point”. When the light level gets above this level
then the sensor gets less sensitive to the light, (less steep curve) and will be able to image what would
otherwise result in an over saturated/clipped image.
Multi-slope integration will also result in a “compression” of response of the sensor above the knee-point, and
the “contrast” of the bright part of the image will be lower when the HDR level is increased. Another side-
effect is also that the images will get a “pinkish tint”, so that the color fidelity of the brighter areas of the
image will be lower.
The figure above shows two settings:
- Reset time at 70%/85% of the exposure time: This settings makes the sensor capable of coping with
approximately twice the amount of light compared to the linear response (HDR OFF)
- Reset time at 80%/90% of the exposure time: This settings makes the sensor capable of coping with
approximately four times the amount of light compared to the linear response (HDR OFF)
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