Desktop Videoconferencing

1
DesktopVideoconferencing

• Overview
• Applications
• Effective DVC
• DVC Standards
• CU-SeeMe

2
Overview

• Compared to the large and expensive room
  videoconferencing systems that dominated the
  early1990s, DVC is relatively new and
  comparatively inexpensive communication
  technology.
• DVC is designed to simulate a face-to-face
  meeting. It combines personal computing with
  audio,video, and communication technology for
  real-time interaction from a typical PC.
• By recording, digitizing, compressing and then
  transmitting both voice and video,DVC systems
  enables you to see and talk to your family,
  friends, and business associates around the world
  from your PC.
• Most DVC solutions provide desktop application
  sharing capabilities as well as whiteboard
  capability that allows multiple users to view and
  annotate a document with pens, highlighters, and
  drawing tools.

3
Applications

• The benefits of desktop videoconferencing are
  many and the choices are getting greater.
• Desktop videoconferencing offers a wide range of
  business and educational solutions

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Business Solutions

• It improves communication and collaboration
  sharing ideas, information and tasks
• It saves time and travel costs.
• DVC enables you to hold corporate meetings, host
  conferences online, and conduct corporate
  training over the internet.

5
Home and Family Solutions

• With desktop videoconferencing you can keep in
  touch with family and friends.
• Save on long distance phone calls.
• Or meet new people online.

6
Education Solutions

• DVC enables teachers to bring outside resources
  into the classroom.
• It provide home schooling , and online
  parent/teacher conferences.
• It enables cultural exchange by facilitating
  learning between remote classrooms and
  educational centers.

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Health Care Solutions

• DVC improves patient care while reducing travel
  time and cost.
• It provides immediate access to medical
  specialists from remote locations.
• It also brings advanced medical facility
  resources to doctors operating in rural areas
  where assistance may be needed.

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Effective videoconferencing

• To ensure an effective videoconference, good
  presentation elements are a must. Things like
  composition, lighting, audio, camera angle,
  scenery, wardrobe and jewelry should be carefully
  considered.

9
Composition of your scene

• Close up shots are most effective. You should be
  placed in the center of the picture, framed from
  the chest to the top of the head.
• Eye contact is essential.

10
Lighting

• Poor lighting will result in a poor washed-out
  picture.
• If placed to high, it will produce dark shadow
  around the eyes.
• Sunlight and artificial lights do not mix,
  windows or sunlight on you or in the background,
  will result in a reddish or bluish skin tint.

11
Audio

• Most people are not born with professional
  sounding voice, In fact, it takes a lot of
  training and practice.
• Diction and pronunciation are especially
  important.
• The closer you are to the microphone the better
  the sound will be.

12
Scenery

• A neutral color works best for the background.
• Avoid large windows or black/white boards behind
  you.

13
Wardrobe and Makeup

• Experiment with colors and styles on camera under
  the lighting that will be used.
• Matte warm colors work best.
• Keep jewelry to a minimum, reflective jewelry
  cause lighting problems.
• To enhance or to correct, a little makeup will
  provide a clean-cut and a healthier look.

14
Standards and compatibility

• The (ITU), and (IETF) are responsible for setting
  Telecommunication Standards to ensure
  international interconnectivity of systems
  utilizing incompatible formats.
• These standards are specifications that explain
  in detail improved formats of data compression
  and transmission, utilizing the latest
  development in technology.

15
Transport Protocols

• Several standard based transport protocols are
  used with DVC such as
• TCP/IP
• (Transfer Control Protocol /Internet Protocol)
• UDP (User Datagram Protocol)
• RTP (Real Time Protocol)

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Transport Media

• The connection between the conferencing PCs can
  be established through different transport media
  including
• ISDN.
• H.320 is the ITU standard for ISDN.
• LAN and Intranet
• H.323 is the ITU standard for LAN conferencing.
• POTS.
• H.324 is the ITU standard for POTS.
• Internet.
• H.323 is the ITU standard used for Internet
  conferencing.

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CU-SeeMe

• CU-SeeMe from White Pine is the most popular,
  full-featured video chat software for seeing,
  hearing and sharing. It enables you to see,
  hear, and type to users from all over the world
  while they can also see, hear and type back to
  you.
• CU-SeeMe software is available for the price of
  69.00 Dollars.
• whit Pine also offers CU-SeeMe Cam Kit for
  Windows, it includes color video camera, CU-SeeMe
  software, and a User Guide for the price of
  149.00 Dollars.

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Features

• Person to person or group calls.
• Place calls with IP addresses or e-mail
  addresses.
• View up to 12 people in the conference room
  simultaneously.
• Live audio and full color video
• phone Book to store contact information.
• Contact list to determine if friends are online.
• Whos Online to find all people online on an ILS
  server.

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Conclusion

• Communication is the essence of Desktop
  Videoconferencing and as technology advances and
  prices drop, DVC systems will become an integral
  part of conducting business both in the office
  and at home.