Dahua NVR100 series User Manual page 431

the video height and width. The recommended height is 10% of the video.

The object and the background brightness different shall be more than 10 grey levels.

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).

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.

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.
5.10.3.2.1 Behavior Analytics
From main menu->Setup->Event->Behavior analytics->Behavior analytics, you can go to the Behavior
analytics interface. See Figure 5-71.
Please select a channel from the dropdown list
Click to add a rule. The default setup is tripwire, you can double click the rule type name to modify.
See Figure 5-72.
Figure 5-71
Figure 5-72
421