Page 72 - Security Today, September 2017

PROBLEM
Disruptive False Alarms
SOLUTION
Universal Stopper® Protective Cover
Internal horn deters pranksters before the protected alarm is activated
Reduces building disruption Tough polycarbonate construction
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2017
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high-resolution image of the camera’s entire field of view, and then display it in any num- ber of ways. Better yet, it can provide these multiple views simultaneously. For example, a VMS might be set up to display video from a single hemispheric cameras in several dif- ferent ways.
• Panoramic frames can display the entire perimeter of a property using just two 180-degree views.
• Zoomed in frames displaying certain ar- eas of interest, set up as presets, as if each were an individual camera. Such areas might include doorways, cash registers, service counters, kiosks, etc.
• A virtual PTZ experience, very much like using a real PTZ, that allows for panning and zooming around the original 360° spherical image. Although the zooming is digital, today’s 6 and 12MP cameras have come a long way to diminish the pixeliza- tion that can occur.
That a single camera can do all of these things, simultaneously, is pretty remarkable, but the fact that it can do so both in live view and playback mode, completely independent of each other, is what really sets the power of these cameras apart. For example, let’s say that a hemispheric camera is being used to cover a parking lot. A car on the lot was van- dalized. When the damage occurred, system operators did not have a close up of that par- ticular car set up in their live viewing streams. No problem. With a hemispheric camera covering the entire lot, and a VMS dewarping the video, the system operator can set up a video frame that focuses just on that car and the surrounding area, after the fact, and then view it in playback over the time in question. All the visual detail was captured by the VMS as part of the original, high-resolution video stream sent from the camera.
In other words, having a hemispheric camera with VMS dewarping is like having the ability to instantaneously install a new camera whenever you need it, without any labor or the hassle of configuring or focus- ing it, and then view video from before it was “installed.” Now that is cool.
No Solution is Perfect
While hemispheric cameras break new ground in many ways, there are still situations where traditional cameras work better. The most
0917 | SECURITY TODAY
IP CAMERAS