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Digital wireless camera Wireless security cameras are closed-circuit television (CCTV) cameras that transmit a video and audio signal to a wireless receiver through a radio band. Many wireless security cameras require at least one cable or wire for power; "wireless" refers to the transmission of video/audio.
In studio cameras, the camera electronics shrank, and CCD imagers replaced the pickup tubes. The thick multi-core cables connecting the camera head to the CCU were replaced in the late seventies with triax connections, a slender video cable that carried multiple video signals, intercom audio, and control circuits, and could be run for a mile or ...
Computer-controlled cameras can identify, track, and categorize objects in their field of view. [150] Video content analysis, also referred to as video analytics, is the capability of automatically analyzing video to detect and determine temporal events not based on a single image but rather on object classification. [151]
A one megapixel camera with the onboard video analytics was able to detect a human at a distance of about 350' and an angle of view of about 30 degrees in non-ideal conditions. Rules could be set for a "virtual fence" or intrusion into a pre-defined area.
Camera-tube focus coils, by themselves, have essentially parallel lines of force, very different from the localized semi-toroidal magnetic field geometry inside a TV receiver CRT focus coil. The latter is essentially a magnetic lens ; it focuses the "crossover" (between the CRT's cathode and G1 electrode, where the electrons pinch together and ...
A smart TV. The advent of digital television allowed innovations like smart television sets. A smart television sometimes referred to as a "connected TV" or "hybrid TV," is a television set or set-top box with integrated Internet and Web 2.0 features and is an example of technological convergence between computers, television sets, and set-top ...
2009 Nobel Prize in Physics laureates George E. Smith and Willard Boyle, 2009, photographed on a Nikon D80, which uses a CCD sensor. The basis for the CCD is the metal–oxide–semiconductor (MOS) structure, [2] with MOS capacitors being the basic building blocks of a CCD, [1] [3] and a depleted MOS structure used as the photodetector in early CCD devices.
Skycam HD at an ESPN on ABC–broadcast University of California, Berkeley football game.. While "SkyCam" is a registered trademark, the term "Skycam" is often used generically for cable-suspended camera system, and competing systems like CableCam (invented by Jim Rodnunsky but also a subsidiary of Kroenke Sports & Entertainment, LLC), Spidercam and Robycam 3D.