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The Queue length detection module can be configured using the System settings menu, under the Hardware tab, on the Queue Length Detection control panel, using the Camera settingson the settings panel of the Queue length detection object created under the Camera object in the Hardware tab of the System settings dialog box.

The Configure the Queue length detection module is set up as follows:

1. Go to the Queue Length Detection control length detection setting panel.
   
2. Click Settings.
   The Detection settings window will appearappears.
   
3. Specify the area of interest and the approximate size of people a person in the video image:
   1. Click Stop video to capture the video image (1).
   2. Click Area of interest (2).

   3. Using the left mouse button select the four corners points of the area on in the captured video image (3) to be analyzed (1). Only one area may can be so designatedadded. If a second area is specified, then the first area will be deleted. Upon selection of the area the remaining part of the video image will be dimmed.

      Info
      title Note.
      To remove a selected area, click the  button next to the Area of interest button.

      

   4. Click Size of man (2).

   5. On In the captured video image (1) specify the approximate size of a person. To do this use the left mouse button to specify a rectangular area (1).

      Info
      title Note.
      To remove the person size, click the  button next to the Size of man button.

      

4. Set the module parameters:
   1. Go to the Parameters tab (2).
   2. Set the detection sensitivity field in a range from 0 to 1 with up to two decimal places (1). The higher sensitivity is, the less perturbations significant objects will be considered as a queue. i.e. the algorithm will react to more inconsiderable motion. So, only considerable change od of the scene will be analyzed by the queue length detection if the minimum value of the detection sensitivity is specified.
      

   3. In the Periodicity of employment measuring, s field, enter specify a time period in seconds for counting the number of persons people in the observed area (2). Minimum The minimum value of this parameter is an interval between frames of analyzed video stream, but not less than 1 second and not more than 3600 seconds. Value The value of the parameter depends on the scene characteristics. For example, if a queue in the field of video camera view is not changing for a long time, than the parameter value can be reasonably large. It is not recommended to specify value of this parameter more than 3-5 minuts minutes for correct working of algorithm on the average scene.

      Info
      title Note.
      The more frequently periodicity of employment measuringsis measured, the more frames are analyzed by algorithm and the higher the system capacity is.

   4. Set the Reduce large resolution checkbox to create and process the new frame consist consisting of even lines of the initial frame (3).

   5. In the Generate employment event, h field

      enter

      specify the value of the Queue length detection counter (number of

      persons) to generate the

      people). If this value is exceeded, then the Queue length (OCCUPANCY_EVENT) event

      when it is exceeded

      is generated by the Queue length detection object (4).

      This event comes from Camera and Queue length detection objects.

      The event have the following parameters: current counter value (occupancy<>) and the threshold value (raise_count<>). The

      events

      event can be used in scripts and programs (

      please refer to

      see Programming Guide (JScript) and Programming Guide for more info on scripts and programs; the most relevant versions of these documents can be found in AxxonSoft documentation repository).

      Info
      title Note
      All events from the Queue length detection object  can be found in the Event log. See Obtaining traffic information in the area of interest.

5. Click OK to save changes and return to the control settings panel of the Queue length detection object (5).

   Info
   title Note.
   To return to the control settings panel of the Queue length detection object without saving changes, click Cancel (6).

   On the
6. Click Apply on the settings panel of the Queue length detection control panel, click Applyobject.

Configuring the Queue length detection module is completecompleted.