Glossary - A Practical Guide to Video and Audio Compression - page 719

Glossary

Topic Description

1394 Sometimes used as an abbreviation that describes FireWire

interfaces. This is derived from the IEEE 1394 standard number.

16mm A semi-professional and professional film format. Low-budget

features, TV programs, and news-gathering all used 16mm.

14 × 9 A compromised aspect ratio midway between 16 × 9 and 4 × 3

(12 × 9) that fits reasonably well on TV displays of either type.

16 × 9 Widescreen TV formats use an aspect ratio of 16 units wide by

9 units high.

24p A common abbreviation used to describe film formats that are

digitized at 24 frames per second (fps) on a progressively
scanned raster.

2.5G phone An intermediate mobile phone format based on 2G equipment

with some basic 3G features introduced ahead of the full 3G launch.

3:2 pulldown A technique used to convert 24-fps movie film to 30-fps video.

Extra fields are inserted periodically in sequences based on
repeating the same frame of film 3 times and then 2 times. Two
cycles of this pattern yields a synchronized framing of the film
with the video. The 3232 sequence is called the cadence.

35mm Hollywood movie and cinema format for feature films.

High-quality TV material might have been shot in this format.

3G phone Modern mobile telephone handsets are known as 3G because

they are based on a third-generation technology. 1G was analog,
and 2G was basic digital services but included WAP and SMS.
3G introduces video and multimedia and other data services.

3GPP Based on the H.264/MPEG-4 codecs. This is the abbreviated

name for the Third-Generation Partnership Project. It was
formed in order to facilitate the development of globally
interoperable mobile phones.

Continued

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