| H.320 |
Standards developed by ITU defines
the technical requirements for narrow-band visual telephone services for
line transmission of non-telephone signals at 64 kbps. Uses spatial compression
for up to 42:1.
- Resolutions are 352X288 (CIF) and
176X144(QCIF)
- Frame rates of 7.5, 10,15,or 30
fps.
- Audio 84-64Kbps Narrowband, 84-64Kbps
Wideband, & 16Kbps Narrowband
|
| MPEG
MPEG2
|
Open standards developed by ISO
used for high quality moving image transmission. Uses spatial and temporal
compression of up to 100:1. Can compress any resolution in hardware or
software. |
| MPEG4 |
Proposed standard for low bandwidth
high quality |
| JPEG |
ISO standard for still images.
Uses spatial compression for up to 27:1. |
| Motion JPEG |
Proprietary standard of sending
seriess of jpeg files to create motion. |
| Indeo
Cinepak
|
Porprietary standards for desk-top
and video game applications |
Compression
Standards