Page History

1

Identification number*

Automatically

Displays the identification number of the Detection zone object in the digital

video surveillance system

with the distributed architecture

Numbers, letters, periods, hyphen, dash and underscore

-

Depends on the number of the Detection zone objects in the digital

video surveillance system

with the distributed architecture

2

Name*

Enter the value

into the field

Sets the name of the Detection zone object in the digital

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

Sets the state of the Detection zone object (enabled or disabled) in the digital

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 digital

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 digital

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

This parameter is active only with the following detectors are selected from the

Detection list: motion, infrared.

Boolean type

Set—

the object frame border is displayed in the

camera field of view

Clear—the object frame border is not displayed in the

camera field of view

7

Alarm

Set the checkbox

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

Boolean type

Clear

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

Clear—

alarm is not generated on the camera and automated recording of the video signal is not performed on the alarm received from the selected detector

8

Armed always

Set the checkbox

Sets the state

of the selected detector as Always armed

permanently

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

The

setting depends on the type of the selected detector:

Motion detection tool

The value of this parameter corresponds to the minimum value of the averaged brightness of the moving object, at which the detection tool will trigger only

at its motion, and not at the video signal noise (including snow, rain, etc.). The HIGHER the sensitivity value, the more sensitive the detection tool is.

Focus detection tool
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 detection tool should trigger.

Stability detection tool

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 detection tool should trigger.

Background change detection tool

This parameter characterizes the deviation of the integral brightness of the frame from the average value at which the detection tool should trigger.

Blind detection tool

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 detection tool should trigger.

Cover detection tool

This parameter corresponds to the rate of narrowing of the brightness chart of the frame, i.e. estimation of the frame filling with gray color, at which the detection tool should trigger.

Infrared detection tool

The value of this parameter corresponds to the minimum value of the averaged brightness of the moving object, at which the detection tool will trigger at its motion

-

Average

-

10

Contrast

Set the

slider in the required position

Sets the minimum contrast of the object at which the detection tool triggers at its motion. The HIGHER the specified contrast value, the more different the neighboring b/w

elements should be, so that the detection tool considers them as different objects.

It is not applicable for all detector types

-

Average

-

11

Filter

Set the

slider in the required position

The setting depends on the type of the selected detector:

Motion detection tool, Infrared detection tool

The value of this parameter corresponds to the threshold of color processing of objects, at which the detection tool should trigger. The HIGHER the filtering, the more different the neighboring elements (pixels) of the image should be, so that the detection tool 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.

It is not applicable for all detector types

-

Minimum

-

12

Size

Set the

slider in the required position

The setting depends on the type of the selected detector. The value of this parameter corresponds to the minimum size of the detection object relatively to the frame sizes.

It is not applicable for all detector types

-

Average

-

13

Direction of search*

Press the arrow buttons

Sets the direction of search for the motion detector

8 possible directions to

object

movement in the frame

All directions are selected: 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

into 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

0 (not set)

>=0

Stability detection tool

Sets the threshold of

difference between the brightness of the pixel in the current frame

and the background

Stability detection tool

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. When exceeded, the alarm verification process starts

Stability detection tool

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.

Below the value, the frame

is considered stable

Stability detection tool

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