huperVision 1.51 Hybrid DVR Quick Start Guide
- 36 -
How to do Masks in Detection Features
Mask feature exist in some detection e.g. “Motion Detection” and “Missing &
Left Object detection”. You can either set a full Video detection or mask out
some unwanted area to prevent false alarms.
Let’s take Motion Detection for example. When you opened the Motion
Detection settings page, press the
pull down button to extend the
Mask menu, and you are ready to do a mask on video.
There are 2 type of mask can be applied, “
Add Mask
”
or “
Subtract
Mask
”
. “Add Mask” button allow you to block out some area from
detection, but “Subtract Mask” button help you to recover some area for
detection from Mask. Combine both kind of Mask you can easily do a
complicated mask to form a precise detection area.
There are 3 types of Mask shapes can be used when doing “Add Mask” and
“Subtract Mask”:
Rectangle shape
, Circular shape
, Free hand sketching
.
