You can resolve exposure adjustment issues that result in under-exposed or
over-exposed context images in a SharpZ3 installation.
Procedure
If context images are blurry on fast-moving vehicles:
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Make the adjustment at night.
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Decrease the maximum Exposure time value until the blur
caused by vehicle motion is acceptable.
If context images are noisy during the night:
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Make the adjustment at night.
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(Optional) Select Allow illuminator. This allows the camera
to turn on the IR illuminator under dark conditions, but removes color from the image
as the light level diminishes.
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Decrease the maximum Gain value. This prevents the camera
from amplifying the noise, but it can result in darker images.
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(Optional) Increase the maximum Exposure time. Note that
this can increase the blur caused by vehicle motion.
If context images are too dark during the night:
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Make the adjustment at night.
-
(Optional) Select Allow illuminator. This allows the camera
to turn on the IR illuminator under dark conditions, but this progressively removes
color from the image as the light level diminishes.
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Increase the maximum Exposure time value until you are
satisfied with the image quality. However, do not exceed the level that causes
unacceptable motion blur on fast-moving vehicles.
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If you reach the maximum Exposure time value and the image
is still too dark, increase the maximum Gain value.
If context images are too bright during the day:
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Make the adjustment under sun illumination.
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Decrease the minimum Gain value until you are satisfied with
the image quality.
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If you reach the minimum Gain value and the image is still
too bright, decrease the minimum Exposure time value.