Although megapixel cameras may not be necessary for all applications, there are many where their technology provides an undeniably superior solution. Features like greater detail and wider coverage make them ideal for identification and forensic purposes.

The transition from analog to network video cameras changes the rules of image resolution. "Standard" network video (also known as VGA or Video Graphics Array, and roughly equivalent to what users were accustomed to with analog technology standards) is still the most common definition for network cameras, but higher resolutions are possible using today's megapixel technology.

Mike Capulli offers a primer on the shift from analogue to IP video, and explains how computer-based networks provide a backbone to any system.