What is the difference between FULL-CIF and QCIF?
A. Full CIF (Common Intermediate Format) displays video frames containing 352 pixels grouped in 288 non-interlaced luminance lines. CIF (Quarter CIF) employs half the CIF spatial resolution in both horizontal and vertical directions displaying 176 pixels grouped in 144 non-interlaced luminance lines. 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.