This resolution is one quarter of CIF, with 144 lines and 176 pixels per line.

Quarter Common Interchange Format. QCIF images contain YCbCr data and are 176 pixels wide and 144 pixels high (one-fourth the size of CIF images). H.261 codecs are required to support images in this format.

Quarter-CIF (progressive video format having 180x144 samples)

(Quarter Common Interchange Format) is a variant on CIF with 176 x 144 resolution.

Quarter Common Interchange Format. An H.261 frame format having a resolution of 176 x 144 pels.

Quarter Common Intermediate Format (“Q-sif”). A measure of video resolution, displaying 176 pixels by 144 lines. Has half of the CIF spatial resolution of FCIF. This is the “default” minimum H.261 format. Typically used in desktop videoconferencing.

176-by-144 video format defined by the ITU's H.261 specification. Allows signals to be delivered at 9.115 Mbits/sec at 30 frames/sec.

Quarter common intermediate format. Video resolution of 176 x 144.

Quarter Common Intermediate Format. A video resolution of 1/4 the size of FCIF - 176 pixels horizontally and 144 pixels vertically. It is used primarily ion low bite rate (128Kbps and lower) videoconferencing.

Quarter Common Intermediate Format. A video format that has 176 pixels by 144 lines and 30 fps.

low resolution format for video conferencing (144 lines x 176 pixels).

Refers to the size of an image, one quarter the size of the Standard Image Format, 176 x 140 pixels for NTSC.

Quarter Common Intermediate Format. Describes a subset of the type of coded video signals transmitted when using ITU-T H.261 and H.263 coding methods. See CIF.

Part of the H.261 video format standard. QCIF offers 176x144 pixel resolution, onequarter that of Full CIF (FCIF). See CIF and FCIF.

Quarter CIF. A video transmission standard. Transfers one fourth the amount of data. (Suitable for videoconferencing systems that use ordinary telephone lines) See CIF.

Full CIF (Common Intermediate Format) displays video frames containing 352 pixels grouped in 288 non interlaced luminance lines. (Quarter CIF) employs half the CIF spatial resolution in both horizontal and vertical directions displaying 176 pixels grouped in 144 non-interlaced luminance lines. Note: Full CIF format is used in videoconferencing when several people need to be viewed or details need to be magnified over a full screen. Conversely, QCIF is used in most desktop videoconferencing applications where head and shoulder pictures are sent from desk to desk.

uarter ommon ntermediate ormat. Quarter-screen video via videoconferencing. Used with H.261 compression. 176 x 144 pixels. See also CIF.

Common Intermediate Format/Quarter Common Intermediate Format. Standards-based formats for communicating between video-conferencing systems from different vendors. CIF is a progressive format for computer animation with 360¥ 288 pixels per frame at 30 frames per second. QCIF is a progressive format for computer animation with 180¥ 144 pixels per frame at 30 frames per second. QCIF has one-quarter the resolution of FCIF (Full Common Intermediate Format).

Data transfer rate is a quarter of the Full CIF. The QCIF (Quarter Common Intermediate Format) standard is defined as 176 x 144 resolution frames transferred at 9.1Mpbs.The QCIF is suitable for videoconferencing by telephone lines.

Quarter CIF. 176 by 144 resolution.

Quarter Common Intermediate Format. A standard size for images produced by low-resolution digital cameras and video cameras. QCIF images are 176 pixels wide and 144 pixels tall (176 x 144). QCIF is smaller than CIF, QVGA, and VGA.