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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.

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.

Various software tools in wide use can be employed for this, such as Pic Master (for use with Windows operating systems), Photo Booth (Mac), or Cheese (with Unix systems).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.Video features, including faces, shapes, models and colors can be observed and tracked to produce a corresponding form of control.For example, the position of a single light source can be tracked and used to emulate a mouse pointer, a head-mounted light would enable hands-free computing and would greatly improve computer accessibility.

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