Define a boundary in the camera view

A virtual fence is an observation boundary drawn in an image. Where supported, it can focus crossing review on a particular approach, but it does not create a physical barrier or remove the need to survey blind spots.

Confirm detector support, camera suitability and the proposed event workflow before deployment.

Plan a virtual boundary

Illustration of a virtual boundary drawn across a camera view

Example

Without IVISIONStandard CCTV feed

With IVISIONIllustrative event overlay

The Process

How It Works

Review crossings at the line that matters Focus monitoring on a chosen visible boundary without changing the physical site layout.

Survey the visible edge

Choose a boundary that corresponds clearly to the physical site.

Validate the line rule

Test crossings at different distances and angles.

Review each candidate

Check whether the observed path truly crossed the intended edge.

Inspect boundary conditions

Use findings to review access and camera coverage.

Explore Your Options

Explore Related Capabilities

Dimension	Virtual fence monitoring	Area Intrusion
Observation	A supported object crossing an image-defined line or perimeter.	A supported object moving across a defined entry boundary.
Event criteria	A validated crossing condition is met at the selected boundary.	The validated direction or entry condition is met.
Monitoring setup	Confirm line geometry, direction and relevant object classes.	Confirm object classes, boundary position and relevant operating periods.
What it cannot establish	An image line is not a surveyed physical fence or guaranteed perimeter protection.	A crossing does not prove criminal intent or establish access permission.
Practical outcome	Focus monitoring on a chosen visible boundary without changing the physical site layout.	Help security teams review where and when a boundary was crossed.