VIDEO-VIDEO-CONFERENCINGCONFERENCING

VIDEO-VIDEO-CONFERENCINGCONFERENCING

PREAMBLE

Factors contributing to spurt growth of video-conferencingAvailability of high speed networkAdvancement in technologyAvailability of network bandwidth

WHAT IS VIDEO-CONFERENCING

Video-conferencing is a two way conferencing amongst people present at geographically dispersed locations.

Video-conferencing can be of two types:

1. Point-to-point conference2. Multipoint conference

MULTIPOINT VIDEO-CONFERENCING

Multipoint video-conferencing connects multiple sites at the same time to become part of same conference.

There are two modes of multi-point video-conferencing

1. Voice activated2. Continuous presence

COMPONENTS OF VIDEO-CONFERENCING

The basic components of video-conferencing are: Codec Camera Control system Display equipment Audio system Network

CODECThe various functions of codec are:• Compression/decompression of audio

and video signals• Reduction of bandwidth• Analog-to-digital and digital-to analog

conversion.

CAMERACamera is used for focussing,capturing and alignment of video signals.

CONTROL SYSTEMIt consists of a remote/control panel which controls video-conferencing operation like quality of audio and video, intensity and camera movement.

DISPLAY SYSTEMComputer monitors and large TV sets are used to display the local as well as remote audience.

AUDIO SYSTEMSpeakers as well as microphones are used for good audio quality.

NETWORK

Different types of network used are as follows:

• Leased line• ISDN• VSAT

OPTIONAL COMPONENTS

The components which enhance the functionality of video-conferencing are:Document cameraSlide to video converterWhiteboard cameras

VCRElectronic whiteboardPCProjectorFax/printer

TYPES OF VIDEO-

CONFERENCING

Video-conferencing systems are evolved into three basic types: Integrated systemsDesktop typePortable units

REAL-TIME SYNCHRONICITY

In order to have real-time experience, the following factors are importantReal-time synchronicityPicture qualityReliabilityTrue duplex soundWhisper soundVectoring

BENEFITS OF VIDEO-CONFERENCING

The benefits of video-conferencing areReduction in travel costsSpeeds up decision makingReduces wastage of time

APPLICATIONS OF VIDEO-CONFERENCINGSome of the areas in which video-conferencing is currently being used areDistance education and trainingBusiness conferences and

presentationsRemote problem solving

Remote bankingTelemedicineMarketing Interview Emergency communication during

disaster

LIMITATIONS OF VIDEO-

CONFERENCINGVideo-conferencing fails to provide feel,

warmth and touch that can be realized by face-to-face meeting.

It cannot be used in marketing of jewellery and fashion designing.

FUTURE TRENDS OF VIDEO-CONFERENCINGThe important future advancements in video-conferencing are: LAN based video-conferencing Video-conferencing over internet Virtual classroom

VIDEO-CONFERENCING EVENTS HELD IN INDIA

Interaction with telgi over video-conferencing-August 2005

Ministry of commerce’s videoconferencing with Rome and Paris-18th and 19th may 2005

Address by Honorable President of India at 2nd World Congress On Interventional Cardiology At Mumbai-25th February 2005

Address by Hon’ble President of India during the Inauguration of PMI-Asia Pasific Conference 2005-15th April 2005

CONCLUSIONThe video-conferencing market continues to grow each year with an improvement in both reliability and performance of both video systems and networks.

Reference • www.help2engg.com