Manual
www.acti.com
  Firmware User’s Manual V6.09.45 
67 
Enabled or disabled 
Although  all  3  motion  detection  regions  are  enabled  by  default, 
each can be disabled and enabled individually. Look at the example: 
Only  the  region  1  is  enabled  while  2  and  3  are  disabled.  The 
disabled regions disappear from the video display. 
Note that the number of the motion detection region is written in 
the upper left corner of the region. 
Location of the region 
You can move the motion detection region anywhere on the field of 
view  by  dragging  the  top  of  the  motion  detection  rectangle  as 
shown on the image. The motion detection regions may even be 
overlapping if you like. 
Size of the region 
By dragging the lower right corner of the motion detection region 
you can change the size of the region. The maximum size of the 
region can even be as big as the whole screen. 
Sensitivity 
Sensitivity  is  the  parameter  that  helps  us  distinguish  actual moving  targets (people,  vehicles) 
from the slightly moving background, such as leaves of the trees waving in the wind. In order to 
avoid false alarms, we might want the camera be able to ignore small motion. The higher is the 
sensitivity level of the camera the smaller shift of the object is needed to trigger the alarm. For 
example, if the object within motion detection region has moved for about 1-3 pixels during two 
video frames, then such small motion will be discarded by camera if the sensitivity is low, and will 
still trigger an alarm if the sensitivity is high. In other words, you can think of sensitivity level as a 
reversed speed limit – the smaller is the sensitivity, the faster are the objects allowed to move 
without being detected. 
The biggest challenge of motion detection configuration is to find the settings that do not produce 
false alarms and at the same time do not miss any actual intrusions. The rule of thumb is: the 
sensitivity should  be as high  as possible while not producing  false alarms.  The default 
sensitivity  level  of  the  cameras  is  70  (on  a  scale of  0-100)  and  it  is  a  good  setting  for  most 
standard cases.   










