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Questions · Networks

How much bandwidth does a camera use?

It depends on four things, and it is calculated before buying anything: the resolution, the frames per second, the codec it compresses with and —the one that matters most and gets looked at least— what is in front of it. With those four you estimate; with the camera installed you measure, which is the only thing that counts.

An example, and it is only an example: a four-megapixel camera at twelve frames per second compressing in H.265, looking at an indoor corridor almost nobody walks down, might sit around three megabits per second. The same camera pointing at a car park with trees moving at night can go to three times that, because the compressor has to redraw far more of the image. The figure for your installation is neither of those two: it is whatever comes out of your scene.

Datasheets give a theoretical maximum or an average laboratory figure, and you cannot size a network with either. You size for the worst hour of the day, which is at night, in the rain, with everything moving and with someone watching live.

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A written answer is enough to decide whether it interests you. To know whether it works at your site you have to see it on a real scene, with the image as it is and, on top of it, what the system understands from it. That is on the IRIS Neural website, which is the group's product.