E
Terminology
Numerics
1080i
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
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 wide-screen 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.
2 panes
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
2CIF defines a video with a resolution of 352 × 576 pixels and using progressive
scanning.
2SIF
2SIF defines a video with a resolution of 352 × 480 pixels and using progressive
scanning.
3 panes
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
4CIF defines a video resolution of 704 × 576 pixels.
4SIF
4SIF defines a video with a resolution of 704 × 480 pixels and using progressive
scanning.
HUAWEI TE30 Videoconferencing Endpoint
User Guide
E Terminology
Issue 01 (2013-03-27)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
141
