Image Processing Reference
Table 8-3 Coding Formats for Different Applications
Potential coding formats
MPEG-1, MPEG-2, H.264
MPEG-1, MPEG-2, MPEG-4 part 10, Sorenson, H.264
Internet - dialup
MPEG-1, H.264, Sorenson, Real Networks, Windows Media
MPEG-2, H.264, Flash, Windows Media, Real Networks, Sorenson
H.261, H.263, H.264, H.320, H.323 and H.324
(3GPP & 3GPP2)
Table 8-4 Video Conferencing Standards Recommended by the ITU
The ITU standards for audio compression.
An ITU standard for videoconferencing video streams. H.261
uses the Discrete Cosine Transform (DCT) algorithm to
compress video to fit within a bandwidth of 64 Kbps to 2 M bps.
Another ITU video conferencing standard, that offers better
compression than H.261. This is particularly well suited to
compression down to the low bit rate available through
The telecommunications companies are experimenting with this
codec for delivery of video content to mobile phones. For this
application the codec must be used in a low latency real-time
A higher bit rate ITU standard for videoconferencing via ISDN
or through a reserved portion of the bandwidth available on a
This is an ITU standard for videoconferencing that takes place
over networks that don't guarantee an available bandwidth. The
Internet is such a network where the traffic may be transferred
in bursts and must be interleaved with traffic following
completely different point-to-point connections. Compliant
implementations must also support H.261 video content.
An ITU standard that describes video conferencing taking place
over standard telephone lines with modems.