Setting up the Detection of moving against crowd flow mоdule

The Detection of moving against crowd flow module can be configured using the System settings menu, under the Hardware tab, on the Detection of moving against crowd flow object's control panel created on the basis of the Camera object.

The Detection of moving against crowd flow module is set up as follows:

1. Go to the Detection of moving against crowd flow control panel.
   
2. Click Settings button. The Detection settings window will appear.
   
3. Specify the surveillance area:
   1. Go to the Select area tab (1).
   2. Click the Stop video button to capture the video image (2).
   3. Click the Area of interest button (3).

   4. On the captured video image specify areas to be analyzed. To specify the area set the nodal points of interested area using the left mouse button. Area is considered to be specified when the last nodal point is consisted with the first one. It is possible to add only one area. While attempting to add the second area the first one will be deleted. After area specifying the remaining part of video image will be darkened.

      Note.

      To remove the area click the  button next to the Area of interest button.

   5. Click the Size of man button (4). Set the required person size. To do this, click the left mouse button on the captured video image and extend a rectangular area to required size.

      Note.

      To remove the area click the  button next to the Size of man button.

4. Specify parameters of detection of moving against crowd flow:
   1. Go to the Setting tab (1).
      
   2. In the Detector sensitivity field enter the value of sensitivity parameter using up-down button (2). Optimal value of parameter is selected experimentally by testing the detection for triggers in required conditions. The range of values is from 0 to 1. The less detection sensitivity, the more probability of event missing.
   3. In the Men in crowd field specify the minimal number of people moved in direction of crowd movement in which detection should function (3).
   4. Set the Direction against crowd switch to the position, corresponding to the objects movement against a crowd on the video image (4).
   5. In the Number of processed frames per second (0.016 - 100) field (5), set the number of frames per second that will be processed by the detection tool. The higher the value, the more accurate the detection tool works, but the higher the CPU load.
5. Click the OK button (6).

Configuring the detection of moving against crowd flow module is complete.