2.8.7 Configure the SCD settings [SCD area]
By configuring SCD (scene change detection) setting, it is possible to issue an alarm when a camera is covered with something or the camera direction is changed to shoot a different subject.
The detection area using the SCD function can be set on this section. Up to 1 area can be set. When a shooting subject is changed in the set area, it will issue an alarm.
IMPORTANT
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Since it takes time for necessary learning in the following period, the SCD will not function for a while.
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Right after the SCD is set
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After the power of this product is turned on
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After a scene change is detected
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The alarm occurrence indication button (→
1.1.2 About the “Live” page) will be displayed when scene change is detected by the SCD function.
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The alarm occurrence indication button will be displayed at a VMD alarm occurrence or when receiving a command alarm as well.
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Depending on the network environment, notification may be delayed even when “Real time” is selected for “Status update mode” on the [Basic] tab of the “Basic” page. (→
2.5.1 Configure the basic settings [Basic])
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After configuring the SCD area, the SCD area may move out of alignment when “Image capture mode” of the [Image] tab is changed. Make sure to check the SCD area after changing the “Image capture mode” setting.
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In the following cases, scene change may not be detected.
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Only a part of the shooting area is covered or the covered object can be seen.
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Subjects look alike each other before and after the camera direction has been changed.
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In the area where the privacy zone is set.
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The SCD function is not the dedicated function to prevent thefts, fires, etc.
We are not responsible for any accidents or damages that may occur.
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When “Detection time” of “SCD area” is shorter than “Dwell time” of “Day & Night(IR)”, a scene change detection (SCD) may be activated at the time when an image is switched to BW. It can be improved by setting “Dwell time” of “Day & Night(IR)” shorter than “Detection time” of “SCD area”.
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When the image color is close to monochrome, detection of SCD alarms may become difficult. When no alarms is detected, increase “Detection sensitivity” or set smaller “Detection area”.
[Area]
Set by selecting an SCD area on the screen.
[All areas]
Set the entire image in the SCD area.
[Status]
Select “On” or “Off” to determine whether or not to perform SCD.
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Off: Does not performSCD.
[Detection area]
Set the detection ratio “Small”, “Middle” or “Large”, which specifies how much of change in the area set in [SCD area] to be detected.
[Detection sensitivity]
Adjust the SCD sensitivity in the SCD area and select from “Very Low”, “Low”, “Middle”, or “High”.
[Detection time]
The SCD function issues an alarm when the scene change continues for a specified time of period.
3s/5s/10s/30s/1min
[Delete] button
Click the [Delete] button to be deleted the selected area.
SCD information addition
[Information addition]
Select “On” or “Off” to determine whether or not to add SCD information to superimposed image data.
Note
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SCD information will not be used on our network disk recorders. (As of April, 2020)