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General information

You can specify the You can set the minimum and maximum object size for detection by specifying numerical values or reference areas on screen. Objects of all sizes beyond the set values will not trigger detection.size of detected objects both numerically and visually. Detection tool won't generate an event for larger or smaller objects.

Specifying the size of objects numerically

To specify the size of objects numerically, do as followsthe following:

1. Select the  Object tracker objectTracker.
2. In the settings of the Object Tracker (see Configuring the Object tracker), specify the values of the parameters:
   

   Parameter	Value	Description
   Max. object height	100	Specify the maximum height and width of the detected object as a percentage of the height/width of the frame. The values must be in the range [0.05, 100]
   Max. object width

   fields (1), enter the maximum

   Min. object height	2	Specify the minimum height and width of

   a detectable

   the detected object as a

   percent

   percentage of the

   FOV

   height/width of the frame. The values

   should

   must be in the range [0.05,

   05;

   100]
   	Min. object width

   Image Removed

   Note
   title Attention!
   If you activate enable the Object calibration parameter in tracker settings, please note that in this case min/max size of objects is specified in decimeters, not in FOV percentage (see Configuring the perspective).

3. In the Min. object height and Min. object width fields (2), enter the minimum height and width of a detectable object as a percent of the FOV height. The values should be in the range [0,05; 100].
4.  Click the Apply button.

To set the reference area on screen, do as follows:

1. the settings of the Object Tracker (see Configuring perspective), you must specify the minimum and maximum size of objects in decimeters and not as a percentage of the size of the frame side.

2. Click the Apply Image Added button. To cancel the changes, click the Cancel Image Added button.

Specifying the size of objects visually

To specify the size of objects visually, do the following:

1. Select the Object Tracker.
2. Click the Min Image Added button and specify the minimum size of a detected object. To do this, move the anchor points of the display area.
   Image Added
3. Click the Max Image Added button and specify the maximum size of a detected
4. Select the Object tracker object.

5. Click the min Image Removed button and set the minimum size of a detectable object. You can do so by dragging and dropping the nodes of the reference area. 

   Image Removed

   Info
   title Note
   For your convenience, you can click the Image Removed button and configure the mask on a still frame/snapshot. To undo, click this button again.

   Click the max Image Removed button and set the maximum size of a detectable object.
   Image Modified
   

   Info
   title Note
   By default, the maximum size is equal to the whole frame size of FOV , so the nodes that anchor points are located in the corners of the frame. For convenience of configuration, you can "freeze" the frame. Click the Image Added button. To cancel the action, click this button again. If you click the Min Image Added and Max Image Added buttons again, the display area hides.

6. Click

   the Apply button.

   the Apply Image Added button. To cancel the changes, click the Cancel Image Added button.

Configuration of You have successfully set the minimum and maximum object size for detection.

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size of detected objects is complete. The size of objects are specified for all its detection sub-tools.