User Manual

English _49
●● SETUP SCREEN
IVA (Intelligent Video Analysis)
You can configure settings to generate an event signal when a motion or situation meeting the specified
event rules is detected.
1. From the Setup menu, select the <Analytics (
)> tab.
2. Click <IVA>.
3. Set whether or not to <Enable IVA>.
4. Configure rules to detect. For more information about
settings, refer to “IVA rule settings”.
Configurable rules are as follows.
- Crossing : You can detect an object passing in the
selected direction on a specified virtual line.
- Intrusion : You can detect the emergence of a moving
object within a virtual area.
- Enter : Detects an object entering from the outside to the
inside of the virtual area.
- Exit : Detects an object exiting from the inside to the
outside of the virtual area.
- Appear(Disappear) : Detects a new object appearing inside a virtual area, which is monitored for a
specified period of time after its position is fixed, or detects a fixed object that disappears and is not
monitored for the monitoring duration.
- Loitering : Detects an object wandering inside the virtual area for longer than the monitoring duration.
5. Select area(s) that you don’t want to include in the analysis, and excluded area(s).
6. Set the sensitivity level and a size of interest (if necessary).
For more information about settings, refer to “IVA general setting”.
7. Configure the event motion schedule and event motion conditions.
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For more information about <Event activation time> and <Event action settings>, refer to “Alarm input”. (page 46)
8. When done, click [Apply].
IVA rule settings
You can configure individual analysis rules as follows.
• Crossing
1. Select the <Virtual line> tab.
2. Left-click on the screen to specify the start and end of the line at a desired position to detect.
3. Select a direction of interest.
4. When done, click [Apply].
5. To remove the rules that have been configured, right-click on the line and click the [OK] button in the pop-
up window that appears.
• Intrusion, Enter, Exit, Appear(Disappear), Loitering
1. Click on the <Virtual area> tab.
2. Left click on the screen to specify 4 vertexes at desired positions.
3. From the virtual area that has been configured, select an analysis category.
4. When done, click [Apply].
5. To remove the rules that have been configured, right-click on the line and click the [OK] button on the pop-
up window that appears.
IVA general setting
Common settings are settings to increase the detection accuracy and minimize false positives, based on the
use environment.
• Sensitivity
1. Select the <Common> tab.
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You can change the sensitivity of distinguishing the screen background from motions.
In a situation in which objects can be clearly distinguished from backgrounds, set this to a low sensitivity level. For the opposite
scenario, in which it is hard to distinguish objects, such as in a low illumination situation, set this to a high level.
2. When done, click [Apply].
• Size
1. Select the <Common> tab.
2. For each rectangle that represents the minimum size and the maximum size, right-click on the vertex at
the bottom-right to move and resize it.
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Motions smaller than the specified minimum size or bigger than the maximum size are not detected. To avoid unintended
detections caused by great and small noises, set minimum/maximum motion sizes appropriately in accordance with your
environment. Note that the same motions on the same location can be detected differently in terms of their detection size; it is
recommended to consider and include the tolerable difference when setting the minimum/maximum detection sizes.
3. When done, click [Apply].