Building a CCTV security system: cameras with intelligence

Across the site both internal and external cameras can be wired back to various collection points and utilise POE (Power Over Ethernet) thereby reducing the amount of cabling required and saving costs. These collection points will house encoders (if not IP cameras) that will convert the analogue video from the cameras for distribution onto the network via a fibre or wireless transmission device.

To further enhance the performance of the cameras, each encoder or IP camera can be equipped with Intelligent Video Analysis (IVA) to enable intelligent motion alarm detection.  The IVA provides reliable video motion detection for indoor or outdoor use. IVA is state-of-the-art intelligent video analysis that reliably detects, tracks, and analyzes moving objects while suppressing unwanted alarms from spurious sources in the video.  The key advantage of using this technology within the encoders or IP cameras is to enable detection of  perimeter breaches while improving the reliability of alarms and reducing operator work load.

The algorithms within IVA intelligently adapt to background environmental conditions such as rain, snow, clouds, and leaves blowing in the wind while built-in tamper detection generates alarms on camera hooding/masking, blinding, defocusing, and repositioning. Image stabilization ensures detection even with shaky video sources such as cameras mounted on poles or simple vibrations.

Within IVA, the following tasks can be selected:

• Detect objects entering, leaving or just being within an area (detector field)
• Detect loitering in an area related to radius and time
• Detect idle object within a configurable time span
• Detect removed objects within a configurable time span
• Detect trajectories/routes of objects, passing in the scene, displayed with tracking lines
• Detect multiple line crossing from single line up to three lines combined in a logical row
• Detect condition change properties such as size, speed, direction, and aspect ratio change within a specified time span (for example something falling down)
• Alarm task script manager in the expert mode to combine tasks logically

Up to eight independent tasks can be selected and combined in the scene to build sophisticated detection rules, each one individualized with its own parameters. This allows the detection of multiple object states in parallel, generating separate triggers that can be handled independently or in combination.

To enable the detection of alarms, rules are setup on each encoder or camera individually based on the scene that the camera is looking at.  When one of these rules is breached, an alarm will be sent back to the central server and be distributed to alert the operators.

To find out more about the Cware management platform click here.

Intellegent Video Analysis

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3 Responses to Building a CCTV security system: cameras with intelligence

  1. JimmyBean says:

    I don’t know If I said it already but …Great site…keep up the good work. 🙂 I read a lot of blogs on a daily basis and for the most part, people lack substance but, I just wanted to make a quick comment to say I’m glad I found your blog. Thanks, 🙂

    A definite great read..Jim Bean

  2. REIT says:

    Your blog is so informative … ..I just bookmarked you….keep up the good work!!!! 🙂

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