Quarter CIF

Quarter CIF

(communications, standard)
(QCIF), a video format standard used in videoconferencing, that transfers one fourth as much data as Common Intermediate Format (CIF).

QCIF is defined in ITU H.261 as having 144 lines and 176 pixels per line, with half as many chrominance pixels in each direction. QCIF is suitable for videoconferencing systems that use telephone lines. The codec standard specifies that QCIF compatibility is mandatory, and CIF compatibility is optional.
References in periodicals archive ?
Sarnoff will also be promoting its Quarter CIF (QCIF) codec at FSA Suppliers Expo.
The products, Common Intermediate Format (CIF) and Quarter CIF (QCIF) embedded software codecs, are designed to run on the general-purpose processors used in cell phones, PDAs, and other handhelds.
The module captures both still and moving images at Common Intermediate Format (CIF, 352-x-288-pixel) and Quarter CIF (QCIF, 176-x-144-pixel) resolution.
For exceptional video quality, they support high-bandwidth communications as high as 384 kilobits per second (Kbps) and up to 22 frames per second (fps) at full CIF(a) and 30 fps at quarter CIF.