Step 4
Calibration area.
1. Click "Add Calibration" and draw calibration area in the monitoring image, right click to end drawing.
2. Select "Horizontal" and set the corresponding actual length of the horizontal ruler, and draw
horizontal ruler in the calibration area.
3. Select "Vertical" and set the corresponding actual length of the vertical ruler, and draw vertical ruler
in the calibration area.
4. Ruler verification
Select "Width Verification", click "Calibration" and draw the length which needs to be verified in
the calibration area.
Select "Height Verification", click "Calibration" and draw the length which needs to be verified in
the calibration area.
Note
Select "Area", Click "remove" to delete the calibration area.
Select the added "Vertical" or "horizontal", click "Remove Ruler" to delete the rulers which are not
needed.
Step 5
It is to configure the parameters of global setup, which is shown in Table 5-37.
Parameter
Note
Anti-disturb
Enable
Select "Enable" to enable anti-disturb function.
It is to filter leaf shake and water ripple which cause disturbance to the
device intelligent analysis.
Shadow
Scene
Enable
Select "Enable" to enable shadow scene filter function.
As for the scene with shadow, it can make target box contain target
itself only (exclude shadow), the target with several shadows can be
separately detected, which provides more accurate initial target
position. It will be misjudged that the shadow is excluded if part of target
is similar to the shadow.
Sensitivity
The bigger the value is, the easier for low contrast target and small
target to be triggered, the bigger the virtual detection rate is, the bigger
the false detection rate becomes.
Tracking Overlap
Rate
It can recognize the target only when the overlap rate with original
position after target moves is smaller than the valid target overlap rate
which has been set.
Valid
Tracking
Distance
It can recognize the target only when the ratio between moving pixel on
the image for the target and image width pixel of certain proportion is
bigger than the valid tracking distance which has been set.
Valid
Tracking
Time
It can recognize target when the target movement time is bigger than
the valid tracking time which has been set.
Table 5-37
