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Image Blur, Noise, and Light Trails
Troubleshooting
Problem
Recommended Solution
The lower middle
Re-focus your camera. For details about how to adjust the focus of a prime lens camera, see
part of the image
adjust the focus of a zoom camera, perform the following operations:
is blurry, while
1. Log in to the camera web system, choose Traffic Snapshots (or View if the camera version is earlier than
other parts are
9.0.0.SPC600), and click xx in the live video pane. The PTZ Control window is displayed.
clear.
2. Click xx
and xx to adjust the focus.
Decrease the shutter limit.
Static objects are
1. Choose Settings > Video/Audio/Image > Image, and click Exposure.
clear but moving
2. Decrease the value of Shutter limit (s).
objects are blurry.
If the vehicle speed is less than 60 km/h, use the default value of 1/250. If the vehicle speed is higher than 60 km/h,
the value
1/350
is recommended.
Lower the spatial noise reduction level. If the effect is unsatisfactory, increase the sharpness.
A higher spatial noise reduction level indicates fewer noises but blurrier images. A lower spatial noise reduction
level indicates clearer images but more noises.
Both static objects
Lower the spatial noise reduction level.
and moving
objects are blurry.
1. Choose Settings > Video/Audio/Image > Image,
and click Image Enhancement.
2. Set Denoising to Expert mode.
3. Decrease the value of Spatial denoising level.
Enable the expert mode for noise reduction and lower the temporal noise reduction level.
Moving vehicles
1. Choose Settings > Video/Audio/Image > Image, and click Image Enhancement.
cause light trails.
2. Set Denoising to Expert mode.
3. Decrease the value of Temporal denoising level.
Enhance the noise reduction strength. If the issue persists, reduce the image sharpness.
Enhance the noise reduction strength.
Granular noise is
1. Choose Settings > Video/Audio/Image > Image,
displayed on
and click Image Enhancement.
vehicle or license
2. Set Denoising to Common mode and increase the
plate images.
value of Denoising level. Alternatively, set
Denoising to Expert mode and increase the value
of Spatial denoising level.
19
Adjust the
Increase the sharpness.
1. Choose Settings > Video/Audio/Image >
Image, and click Image Adjustment.
2. Increase the value of Sharpness.
Reduce the sharpness.
1. Choose Settings > Video/Audio/Image >
Image, and click Image Adjustment.
2. Decrease the value of Sharpness.
Lens. To
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