Researchers claim that this method is accurate to ±5 bpm.Webcams may be installed at places such as childcare centres, offices, shops and private areas to monitor security and general activity.Webcams have been used for augmented reality experiences online.
The term "webcam" (a clipped compound) may also be used in its original sense of a video camera connected to the Web continuously for an indefinite time, rather than for a particular session, generally supplying a view for anyone who visits its web page over the Internet.
Some of them, for example, those used as online traffic cameras, are expensive, rugged professional video cameras.
With very-low-light capability, a few specific models of webcams are very popular to photograph the night sky by astronomers and astro photographers.
Mostly, these are manual-focus cameras and contain an old CCD array instead of comparatively newer CMOS array.
A webcam is a video camera that feeds or streams its image in real time to or through a computer to a computer network.