The settings panel of the Detection zone object

1

Identification number*

Automatically

Displays the identification number of the Detection zone object in the video surveillance system with the distributed architecture

Numbers, letters, periods, hyphen, dash, and underscore

NA

Depends on the number of the Detection zone objects in the video surveillance system with the distributed architecture

2

Name*

Enter the value in the field

Sets the name of the Detection zone object in the video surveillance system with the distributed architecture

Latin, Cyrillic characters, and service characters

Detection zone

A line containing a sequence of any characters (letters, digits, service characters except > and < characters), case-insensitive.

Number of characters—from 1 to 60

3

Disable

Set the checkbox

Disables the Detection zone object in the video surveillance system with the distributed architecture

Boolean type

Clear

Set—the Detection zone is disabled and isn't used

Clear—the Detection zone object is enabled and is used

4

Camera

Select the value from the list

Sets the Camera parent object of the video surveillance system with the distributed architecture to which the given Detection zone object belongs

Name of the Camera objects registered in the system

Name of the Camera parent object

Depends on the number of the Camera objects in the video surveillance system with the distributed architecture

5

Detection

Select the value from the list

Used to set the type of the used detector

List of names of the detectors in the system

Motions

• Motion;
• Focus;
• Stability;
• Background change;
• Blind;
• Cover;
• Infrared

6

Show

Set the checkbox

Sets the display of the frame border of an object in the camera field of view.

Note. This parameter is active only when selecting the following detectors from the Detection drop-down list: motion, infrared.

Boolean type

Set—the object frame border is displayed in the camera field of view

Clear—the object frame border isn't displayed in the camera field of view

7

Alarm

Set the checkbox

Enables alarm generation on the camera and automatic recording of the video signal from the camera with the alarms received from the selected detector

Boolean type

Clear

Set—on alarm received from the selected detector, an alarm is generated on the camera, and automatic recording of the video signal is performed

Clear—alarm isn't generated on the camera, and automatic recording of the video signal isn't performed on the alarm received from the selected detector

8

Armed always

Set the checkbox

Arms the detector

Boolean type

Clear

Set—the detector is always in the Always armed state

Clear—the Operator can disarm the detector

9

Sensitivity

Set the slider in the required position

Sets the setting parameter of the same name for the selected detector. 
The setting depends on the type of the selected detector:

• Motion detector

The value of this parameter corresponds to the minimum value of the averaged brightness of the moving object, at which the detector triggers only at its motion and not at the video signal noise (including snow, rain, and so on). The HIGHER the sensitivity value, the more sensitive the detector is.

• Focus detector

The value of this parameter characterizes the minimum degree of accuracy loss, expressed in the difference between the average number of outlines and the number of outlines in the incoming frame at which the detector must trigger.

• Stability detector

The value of this parameter characterizes the minimum degree of reduction in the resolution of the frame, expressed in the difference between the average number of outlines and the number of outlines in the incoming frame at which the detector must trigger.

• Background change detector

This parameter characterizes the deviation of the integral brightness of the frame from the average value at which the detector must trigger.

• Blind detector

This parameter corresponds to the rate of illumination of the video expressed in the difference between the positions of medians of the brightness chart of the incoming frame and the reference illumination frame at which the detector must trigger.

• Cover detector

This parameter corresponds to the rate of narrowing of the brightness chart of the frame, that is, the estimation of the frame filling with gray color, at which the detector must trigger.

• Infrared detector

The value of this parameter corresponds to the minimum value of the averaged brightness of the moving object, at which the detector triggers at its motion

NA

Average

NA

10

Contrast

Set the slider in the required position

Sets the minimum contrast of the object at which the detector triggers at its motion. The HIGHER the specified contrast value, the more different the neighboring b/w elements must be so that the detector considers them as different objects.

Note. It isn't used for all detector types

NA

Average

NA

11

Filter

Set the slider in the required position

Sets the setting parameter of the same name for the selected detector.
The setting depends on the type of the selected detector:

• Motion detector, infrared detector

The value of this parameter corresponds to the threshold of color processing of objects, at which the detector must trigger. The HIGHER the filtering, the more different the neighboring elements (pixels) of the image must be so that the detector considers them as different objects.

• Background change detection tool, Stability detection tool

The value of this parameter corresponds to the contrast threshold of the detected object.

Note. It isn't used for other detector types

NA

Minimum

NA

12

Size

Set the slider in the required position

Sets the setting parameter of the same name for the selected detector.
The value of this parameter corresponds to the minimum size of the detection object relative to the frame size.

Note. It isn't used for all detector types

NA

Average

NA

13

Direction of search*

Press the arrow buttons

Sets the direction of search for the motion detector

8 possible directions of object movement in the frame

All directions are included: up, down, to the left, to the right, up and to the left, up and to the right, down and to the left, down and to the right

Up, down, to the left, to the right, up and to the left, up and to the right, down and to the left, down and to the right

14

Delay between MD_INFO (ms)

Enter the value in the field

Sets the time period in milliseconds between the MD_INFO events from the CAM_ZONE object in the Event Viewer (if the MD_INFO event is enabled in ddi)

Non-negative integer

Not set

>=0

Sets the threshold of difference between the brightness of the pixel in the current frame and the background

Sets the maximum permissible percentage of the stabilized frame pixels that differ from the background by more than the value in the Stability detection sensitivity field, exceeding which the alarm verification process starts

Sets the maximum permissible percentage of the stabilized frame pixels that differ from the background by more than the value in the Stability detection sensitivity field before reaching which the frame is considered stable

Sets the time period in seconds during which the Upper stability limit must be exceeded to generate an alarm