Some of them, for example, those used as online traffic cameras, are expensive, rugged professional video cameras.
making them the lowest-cost form of videotelephony.
Track IR is a commercial version of this technology.
The Eye Toy for the Play Station 2, Play Station Eye for the Play Station 3, and the Xbox Live Vision camera and Kinect motion sensor for the Xbox 360 and are color digital cameras that have been used as control input devices by some games.
Special software can use the video stream from a webcam to assist or enhance a user's control of applications and games.
Video features, including faces, shapes, models and colors can be observed and tracked to produce a corresponding form of control.
A webcam is a video camera that feeds or streams its image in real time to or through a computer to a computer network.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.This can be applied to games, providing additional control, improved interactivity and immersiveness.Webcam can be added to instant messaging, text chat services such as AOL Instant Messenger, and Vo IP services such as Skype, one-to-one live video communication over the Internet has now reached millions of mainstream PC users worldwide.Improved video quality has helped webcams encroach on traditional video conferencing systems.One such function has the webcam act as a "magic mirror" to allow an online shopper to view a virtual item on themselves.