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While determining the resolution of the cameras we use in CCTV Systems, we calculate PPM (Pixel per Meter: number of pixels per meter) for each camera. If the PPM value does not meet your needs when evaluating your existing systems, we recommend that you increase the resolution of the low-resolution cameras.

By calculating the PPM, it can be determined where and at which clarity the cameras should be used. For example, the horizontal resolution of a 2MP camera is 1920x1080. In other words, it shows the image that appears on the screen with 1920 pixels horizontally and 1080 pixels vertically. If the horizontal width displayed on the screen is 192 meters when measured in meters, it is 1920 pixels/192 meters = 10 pixels/meter = 10PPM. In other words, 10 pixels correspond to 1 meter.

• Detection: 25 PPM (pixels/meter) allows the observation of activities in the environment.
• General Monitoring: 66 PPM (pixels/meter) allows you to know the appearance, gender, color, and approximate height of the subject.
• Recognition: 125 PPM (pixels/meter) allows the automatic detection of the human face and number plate from the video analytics module.
• Identification: 250 PPM (pixels/meter) allows to identify the eye color, tattoos, birthmarks, etc. of people in detail.

For example, if you cannot identify the people you see on the screen even on at least 1 camera, you will find that the resolution is not enough.