In a July 2009 report about calculating video surveillance bandwidth, I mentioned that calculators generally suffer from not including key parameters in their calculators - making the calculations no better than guesses. Axis pointed out their Design Tool does include options that specify the complexity of the scene and the impact of night time streaming. It demonstrates the significance of these factors. For instance, high complexity, night time scenes require 300% more bandwidth than low complexity, day time scenes. While these numbers vary by manufacturer, such factors need to be factored in to system planning.
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