CIF (Common Intermediate Format) is used to standardize the horizontal and vertical resolutions in pixels of YUV sequences in video signals. QCIF means "Quarter CIF". SQCIF means "Sub-quarter CIF". These two formats are common in video encoding. To have one fourth of the area as "quarter" implies, height and width of the frame are halved. A CIF is commonly defined as one-quarter of the 'full' resolution of the video system it is intended for (listed below as 4CIF). Note that this full resolution does not match what is currently refered to as D1 video (based upon Sony's D1 format). Image resolution describes the detail an image holds. ... A pixel (pix, 1932 abbreviation of pictures, coined by Variety headline writers + element) is one of the many tiny dots that make up the representation of a picture in a computers memory. ... Example of U-V color plane, Y value = 0. ... Sonys D1 format was the first major professional digital video format, introduced in 1987. ...
See also:DVD, VCD, HDTV, DVB NTSC is the analog television system in use in Korea, Japan, United States, Canada and certain other places, mostly in the Americas (see map). ... For other meanings of PAL see PAL (disambiguation). ... DVD-R writing/reading side DVD Purple 4. ... VCD can stand for: Video CD Voice command device Value Change Dump (IEEE 1364 Verilog) Value-Centered Design This page concerning a three-letter acronym or abbreviation is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... It has been suggested that High Definition Video be merged into this article or section. ... DVB, short for Digital Video Broadcasting, is a suite of internationally accepted, open standards for digital television maintained by the DVB Project, an industry consortium with more than 270 members, and published by a Joint Technical Committee (JTC) of European Telecommunications Standards Institute (ETSI), European Committee for Electrotechnical Standardization (CENELEC...
(CIF, or Full CIF (FCIF) to distinguish it from Quarter CIF (QCIF)) A video format used in videoconferencing systems, which supports both NTSC and PAL signals, with a data rate of 30 frames per second (fps), with each frame containing 288 lines and 352 luminance pixels per line.
CIF is part of the ITU H.261 videoconferencing standard.
The codec standard specifies that QCIF compatibility is mandatory, and CIF compatibility is optional.
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