Here's how to quantify how good your CCTV system is.
Instead of relying on subjective opinions the industry has actually quantified what to expect. This is really useful to know when you're thinking of buying a new system or upgrading an old one.
You can use these standards to make sure you get the result you need.
The Standard in Question is: DIN EN 50132-7 6
6 LEVELS OF QUALITY FOR VIDEO SURVEILLANCE
Allows an observer to see the location, direction and speed at which a person moves, provided the area in which the person is expected is known before the person enters the area.
Allows an observer to find, with almost absolute certainty, a particular individual at any position in the surveillance area. Under these circumstances, a video sensor could be used as an alarm sensor.
Allows an observer to reconstruct the acts of single persons with almost absolute certainty at any position in the surveillance area.
In accordance with this level, an observer would, with almost absolute certainty, be able to recognize a person they know.
The reproduction of details is so good that an observer can, with almost absolute certainty, perfectly identify a person they do not know on the basis of the video image.
The reproduction of details is so good that an observer can, with almost absolute certainty, perfectly identify a person they do not know only on the basis of the video image also at bad contrast situations.