User Manual

English _37
●● SETUP SCREEN
To Set WDR
It displays a sharp image of the objects in a scene where both bright and dark areas exist.
1. Select <Back light>.
2. Set <Mode> to <WDR>.
3. Select each item and set it properly.
• WDR level : Adjusts the intensity of backlight
compensation.
• Auto : Detects the surrounding environment and automatically uses backlight compensation.
• Turn off in low light : Does not use automatic backlight compensation when detecting a dark
environment.
• Turn off in B/W : Does not use backlight compensation when switching to B/W mode.
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It is recommended to use WDR in the indoor environment.
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Noise may exist between the dark area and the bright area in the WDR mode.
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With WDR mode On or Off, the minimum, maximum and user-preferred shutter value will be reset.
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If you use the P aperture lens manually or a shaking preventive shutter, the WDR performance is partially limited.
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In WDR mode, noise may occur in the motion area.
To Set Exposure
You can adjust the exposure level of the camera.
1. Select <Exposure>.
2. Select each item and set it properly.
• Brightness : Adjust the screen brightness.
• Minimum shutter : The limit of the longest exposure time.
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Shutter is the mode to set up the range of the sensor exposure time
which will specify the upper and lower limits for the electronic shutter
movement.
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The framerate may be reduced in the dark condition if Shutter has a
lower value than specified in the Sensor mode.
• Maximum shutter : The limit of the shortest exposure time.
• Prefer shutter : Sets an appropriate exposure duration that is preferentially applied within the exposure
duration range.
• Anti flicker : It prevents screen flickering incurring from the dissonance between the surrounding lighting
and the frequency.
• SSNR
- On : Noise of the video is removed.
- Wise NR : Automatically adjusts the nose reduction level when there is a moving object in the video
to increase the identifiability.
• SSNR 2D Level : Adjusts the 2DNR level.
- 2DNR : This is a method of reducing the noise by using the adjacent pixel information on a single
video frame.
If you increase the level, the noise will be reduced but the video may be blurred.
• SSNR 3D Level : Adjusts the 3DNR level.
- 3DNR : This is a method of reducing the noise by using multiple video frames.
If you increase the level, the noise will be reduced but the video may drag.
• Iris : Selects whether to use the camera lens manually or automatically.
- DC(Auto) : The aperture is automatically adjusted according to the intensity of light in the surrounding
environment.
- P-Iris : This is the depth priority mode. You can close the shutter during the day to get good depths
and in the nighttime, you can open the shutter to get more lights.
XNB-6000: Supports M13VP288IR, SLA_M2890PN, SLA_M3180PN, M13VP850IR,
M118VP413IRCS, and SL410P.
XNB-8000: Supports M118VP413IRCS and SL410P.
• P-Iris : Set up P-Iris.
- Auto : The iris is automatically adjusted to the amount of the surrounding light.
- Manual : Sets the iris manually to the desired position.
• P-Iris position : Set up the P-Iris position.
• AGC : Select AGC Control mode.
Adjust the gain value of the video (that, in particular, was recorded at a low contrast scene and had a
lower brightness level than normal) to control the video brightness.
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The image exposure can be saturated depending on the Shutter setup range.
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It may take some time from the point when you enable the WiseNR mode to the point when the effect is actually applied/
released.
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When the WiseNR mode is enabled, the identifiability of the video will be improved, but the noise may be increased as
well.
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In a bright environment with less noise, WiseNR may not be so effective.
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With intelligent NR enabled, the motion detection in the video will be performed according to the operation conditions
of the motion detection event, as motion detection uses the motion detection function internally. For more information,
please refer to “Motion detection” (page 48).