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108
8 AI
8.1 Configuring IVS
This section introduces the requirements of scene selection, global configuration and rule
configuration.
Requirements of scene selection:
●
The target should occupy no more than 10% of the whole image.
●
The pixel of the target should be no less than 10×10; the pixel of abandoned object should be no
less than 15×15 (CIF image); the width and height of the target should be no more than 1/3 that
of the image; it is recommended that the height of the target should be set to 10% of the image
height.
●
The brightness difference of the target and the background should be no less than 10 gray levels.
●
The target should be continuously present in the image for no less than 2 seconds, and the
moving distance should be larger its width and no less than 15 pixels (CIF image) at the same
time.
●
Try to reduce the scene complexity as much as condition allowed; it is not recommended to use
Intelligence Behavior Analysis in scenes with intensive targets, changing lighting conditions or
small difference between target temperature and scene temperature.
●
For thermal channel, try not to monitor scenes with glass. For visual channel, try not to monitor:
scenes with reflective surfaces such as glass, bright ground or water; scenes that disturbed by
tree branches, shadows or winged insects; scenes that against light or under direct light
exposure. Control image proportion of objects that are with high relative ambient temperature.
8.1.1 Global Configuration
Configure global rules for IVS. You can draw the detection area and exclusion areas. When the
configured rules is triggered in the detection areas (out of the exclusion areas), an alarm will be
triggered. For the thermal channel, you can also configure the sensitivity.
Step 1 Select
AI
>
AI Config
>
Smart Plan
.
Step 2 Click next to
IVS
to enable IVS of the corresponding channel.
●
Channel 1 is visible channel.
●
Channel 2 is thermal channel.
Step 3 Click
Next
.
Step 4 Click the
Global Config
tab.
Step 5 Select the channel.
●
Select
1
in
Channel
to set the global parameters of visible channel.
●
Select
2
in
Channel
to set the global parameters of thermal channel.
Step 6 Add a detection area or an exclusion area.
1) Click to draw a detected area on surveillance image. The whole image is the
detection area by default, drag corners of the detection area to adjust the area.
2) Click to draw an exclusion area on surveillance image. Right-click to finish drawing.
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