E Terminology - Huawei V100R001 User Manual

HUAWEI TE30 Videoconferencing Endpoint
User Guide
Numerics
1080i
1080p
2 panes
2CIF
2SIF
3 panes
4CIF
4SIF
720p
Issue 01 (2013-03-27)
1080i is the shorthand name for a format of high-definition video
modes. 1080 denotes the number of horizontal scan lines - also
known as vertical resolution - and the letter i stands for interlaced. In
the alternate format of high-definition video mode, known as 1080p,
the p would stand for progressive scan. 1080i is generally used in
place of 1440x1080, at a frame rate of 29.97 (30000/1001), while
1080p is usually used in place of 1920x1080 (full HD), at a frame
rate of 23.976 fps (24000/1001).
1080p is the shorthand name for a category of HDTV video modes.
The number 1080 represents 1,080 lines of vertical resolution (1,080
horizontal scan lines), while the letter p stands for progressive scan
(meaning the image is not interlaced). 1080p can be referred to as full
HD or full high definition although 1080i is also "Full HD"
(1920x1080 pixels). The term usually assumes a widescreen aspect
ratio of 16:9, implying a horizontal resolution of 1920 pixels. This
creates a frame resolution of 1920× 1080, or 2,073,600 pixels in total.
The frame rate in hertz can be either implied by the context or
specified after the letter p (or i), such as 1080p30, meaning 30 Hz.
Users see two sites on one monitor in two panes. The two panes are
of the same size. Each pane is about 1/4 of the screen. Use 2-pane as
an adjective.
2CIF defines a video with a resolution of 352 × 576 pixels and using
progressive scanning.
2SIF defines a video with a resolution of 352 × 480 pixels and using
progressive scanning.
Users see three sites on one monitor in three panes. Each pane is
about 1/3 of the screen. Use 3-pane as an adjective.
4CIF defines a video resolution of 704 × 576 pixels.
4SIF defines a video with a resolution of 704 × 480 pixels and using
progressive scanning.
720p is the shorthand name for a category of HDTV video modes.
The number 720 stands for the 720 horizontal scan lines of display
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