component video


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component video

A color video format that maintains the three traditional YUV video signals in separate channels. Component video provides a sharper image than composite video and S-video, which multiplex the signals together. See YUV, composite video and S-video.

Analog Component Video
With regard to TVs, DVD players, cable boxes, receivers and related A/V equipment, component video generally refers to "analog" component video. The connection comprises three wires identified as Y, Pb and Pr (see YPbPr). Component video cables come in three-wire sets (see below), or five-wire sets, which include two more wires for analog audio.

Digital Component Video
Component video may also refer to "digital" component video (YCbCr) for digital camcorders. The connection uses one cable, typically FireWire or SDI, and is natively supported by many nonlinear video editing programs (NLEs). Digital component video is also carried over HDMI. See YCbCr and chroma subsampling.

Analog RGB
Component video may also refer to RGB signals rather than YUV. In this case, a three-wire analog RGB cable is used to connect a studio monitor or high-end video camera. See RGB.



Analog Component Video (YPbPr)
Analog component video uses three cables. Audio travels separately using one cable for digital signals or two for analog.







Signal Comparison
This diagram shows how YUV is combined to make composite and S-video signals. The device (bottom) are ports from an NVIDIA video card. (Bottom image courtesy of NVIDIA Corporation.)


Signal Comparison
This diagram shows how YUV is combined to make composite and S-video signals. The device (bottom) are ports from an NVIDIA video card. (Bottom image courtesy of NVIDIA Corporation.)







A Lot of Wires
Component video connections require five wires with analog audio or four with digital audio (coax or optical). Migrating to HDMI eliminated a lot of cable clutter. See HDMI.
References in periodicals archive ?
Connections include two sets of composite video outputs, component video output, S-Video output, headphone jack with volume control and optical and coaxial digital audio output jack.
AMIMON's uncompressed Wireless High-definition Interface (WHDI[TM]) allows flat-panel televisions and multimedia projectors to wirelessly interface to all HDTV video sources at a quality equivalent to that achieved with wired interfaces such as component video, DVI and HDMI[TM].
The 20-inch model features a modem and USB port, component video input, two composite video inputs, and an audio and video output.
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While analog component video is currently the most prevalent input connection for high-end video, HDMI is rapidly becoming the preferred technology for connecting high definition video and audio devices," said Jeff Volpe, vice president of marketing, ViewSonic Americas.

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