Troubleshooting outdoor exposure issues for the SharpZ3 context camera - SharpZ3 | SharpOS 13.1

SharpZ3 Administrator Guide 13.1

series
SharpZ3 | SharpOS 13.1
revised_modified
2020-07-14

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:

  1. Make the adjustment at night.
  2. Decrease the maximum Exposure time value until the blur caused by vehicle motion is acceptable.

If context images are noisy during the night:

  1. Make the adjustment at night.
  2. (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.
  3. Decrease the maximum Gain value. This prevents the camera from amplifying the noise, but it can result in darker images.
  4. (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:

  1. Make the adjustment at night.
  2. (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.
  3. 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.
  4. 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:

  1. Make the adjustment under sun illumination.
  2. Decrease the minimum Gain value until you are satisfied with the image quality.
  3. If you reach the minimum Gain value and the image is still too bright, decrease the minimum Exposure time value.