A CDE Definition
(1) See also CIFS and RAW image format.
(2) (Cells In Frames) ATM cells in Ethernet frames. See Cells in Frames.
(3) (Common Intermediate Format) An ITU H.261 standard for videoconferencing camera resolutions. CIF is also used to specify surveillance cameras.
Format NTSC PAL
CIF (Full CIF) 352x240 352x288
QCIF (Quarter CIF) 176x140 176x144
SQCIF (Sub Quarter) 128x96
2CIF (2 x CIF) 704x240 704x288
4CIF (4 x CIF) 704x480 704x576
16CIF (16 x CIF) 1408x960 1408x1152
(4) (Common Image Format) A standard frame size for digital video.
Format Size Resolution
VGA Full 640x480
1/4 VGA 1/4 320x240
1/16 VGA 1/16 160x120
D1 (Sony) Full 720x480 (NTSC)
Cells in Frames
A networking technology developed at Cornell University that embeds ATM cells in Ethernet and Token Ring frames. Cells in Frames (CIF) differs from LAN Emulation (see LANE). It is implemented by replacing the Ethernet hub with a switch or multiplexor known as a CIF Attachment Device (CIF-AD), and CIF drivers are used in the client stations.
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