Ivs (Behavior Analytics) (Optional) - Dahua NVR100 series User Manual

shall be more than 15pixels*15 pixels (CIF resolution). The object width shall not be more than 1/3 of
the video height and width. The recommended height is 10% of the video.
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The object and the background brightness different shall be more than 10 grey levels.
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The object shall remain on the video for more than 2 seconds. The moving distance is larger than its
own width and shall not be smaller than 15pixels (CIF resolution).
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The surveillance environment shall not be too complicated. The IVS function is not suitable for the
environment of too many objects or the changing light.
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The surveillance environment shall not contain glasses, reflection light from the ground, and water.
Free of tree branches, shadow, mosquito and bugs. Do not use the IVS function in the backlight
environment, avoid direct sunlight.
From main menu->Setting->Event, you can go to the IVS interface.

4.7.4 IVS (Behavior Analytics) (Optional)

From main menu->Setting->Event->Behavior Analytics, you can go to the behavior analytics interface.
Here you can set general behavior analytics rule. System can generate an alarm as the mode you
previously set once there is any object violates the rule. See Figure 4-122.
Select a channel from the dropdown list.
Click Add button to add a rule and then select a rule type from the dropdown list.
Set corresponding parameters.
Click Apply button to complete the setup.
4.7.4.1 Tripwire (Optional)
System generates an alarm once there is any object crossing the tripwire in the specified direction.
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The tripwire supports customized setup. It can be a straight line or a curve.
Figure 4-122
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