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A webcam is a video camera which is designed to record or stream to a computer or computer network. They are primarily used in video telephony , live streaming and social media , and security . Webcams can be built-in computer hardware or peripheral devices , and are commonly connected to a device using USB or wireless protocols .
The New York–Dublin Portal (also simply known as The Portal) is an interactive installation created by Lithuanian artist Benediktas Gylys to allow people in New York City and Dublin to interact with each other using two 24-hour live streaming video screens (without audio).
In photography, flash synchronization or flash sync is the synchronizing the firing of a photographic flash with the opening of the shutter admitting light to photographic film or electronic image sensor . PC-socket. In cameras with mechanical ( clockwork) shutters synchronization is supported by an electrical contact within the shutter ...
Ray-cast image of idealized universal joint with shadow. Ray casting is the methodological basis for 3D CAD/CAM solid modeling and image rendering. It is essentially the same as ray tracing for computer graphics where virtual light rays are "cast" or "traced" on their path from the focal point of a camera through each pixel in the camera sensor to determine what is visible along the ray in the ...
Although the game is in 2D, it uses camera angles positioned behind the characters to create a 3D-like experience. The standard cabinet version is controlled with a joysick and 3 buttons, while the deluxe edition of the game features motion sensors that allow the player to move his or her body to control the character in the game; the latter ...
A gamma camera consists of one or more flat crystal planes (or detectors) optically coupled to an array of photomultiplier tubes in an assembly known as a "head", mounted on a gantry. The gantry is connected to a computer system that both controls the operation of the camera and acquires and stores images. [2] : 82 The construction of a gamma ...
An optical axis is an imaginary line that passes through the geometrical center of an optical system such as a camera lens, microscope or telescopic sight. [ 1] Lens elements often have rotational symmetry about the axis. The optical axis defines the path along which light propagates through the system, up to first approximation.
Camera resectioning. Camera resectioning is the process of estimating the parameters of a pinhole camera model approximating the camera that produced a given photograph or video; it determines which incoming light ray is associated with each pixel on the resulting image. Basically, the process determines the pose of the pinhole camera.