Videoconferencing A Scenic Tour of Current Technologies Geoff. Fayers G.J.Fayers@ic.ac.uk

22/05/98


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Table of Contents

Videoconferencing A Scenic Tour of Current Technologies Geoff. Fayers G.J.Fayers@ic.ac.uk

Objectives

Range of VC Systems

A First Encounter

Technicalities: Hardware Components

Technicalities: Software Structure

Some Standards History

PPT Slide

A Tour of the Technologies

Audio Coding

Audio Compression -vat, rat

Video Compression: The Challenge

CIF and QCIF

The codec

Picture Generation and Quality

What H.261 and DCT Do

What H.261 & DCT Do Not

Other DCT factors

Consequences

H.261 vs. H.263

Video Compression: MBONE tools

vic : Features and Snags

T.120

More T.120

MBONE Answers to T.120

Clients, Gateways, ATM & Futures

H.323, Gateways and Security

The Leader In Quality Internet Video

Video Collaboration The 3-Cís

QoS

Conferencing

Caching & Casting

Products Now: Influencing Factors

Present Trends

Future Trends

Interoperability Issues

Technical Challenges

Consequences

Verification of Claims

VCAS, ALAVIT, SHRIMP

Capture Cards

Cameras & Microphones

System Selection Criteria

Hardware

Software

Networking

Applications

Recommendations

Some Questions

PPT Slide

The imux and BONDING

Promptus and Zydacron imuxes

Other NICs using MVIP

Another Example of BONDING

Author: G.J.Fayers