Video Communications: The Whole Picture, 4/e

Description:

Case studies document how, in businesses all across this country, people are communicating via videoconferences with broadcast quality reception. The authors detail how the proliferation of IP networks has driven quality improvements and cost savings in video, and has forced service providers and equipment vendors to pay more than just lip service to their ability to deliver video.

The book also provides background on the history of video communications and why balky ISDN systems have never been able to deliver on the promise of videoconferencing. The high price and low quality of ISDN video transmission has meant the service never was good enough for wide-scale business deployment.

The book includes extensive coverage of the mobile video revolution, as video communications and collaboration become practical with smartphones, PDAs, and IP-enabled phones over broadband networks such as GSM, EVDO, and WiMAX.

The growth in availability of IP communication networks has opened up the practical use of video communications in a tremendous array of applications, including desktop collaboration, training, college recruiting, hiring, finance, justice, distance learning, telemedicine, and more.

One notable example of the impact of IP-based videoconferencing occurred recently at where an injured U.S. Marine was able to be a part of the experience of the birth of his first child, from his bed at Bethesda Naval Hospital 500 miles away. He was able to see, hear, and talk to his wife during the entire labor and delivery.

Whatever the application, it is clear that videoconferencing has arrived as a tool that can have a dramatic impact on people's lives, both personally and professionally. This book provides a complete understanding of the technology, standards, applications and implementation to unlock its potential.

 

 

 

描述：
案例研究記錄了在全國各地的企業中，人們如何通過具有廣播質量接收的視訊會議進行溝通。作者詳細介紹了IP網絡的普及如何推動了視訊的質量改進和成本節約，並迫使服務提供商和設備供應商不僅僅口頭承諾能夠提供視訊。

該書還介紹了視訊通信的歷史背景，以及為什麼笨重的ISDN系統從未能夠實現視訊會議的承諾。ISDN視訊傳輸的高價格和低質量意味著該服務從未達到大規模商業部署的要求。

該書還廣泛介紹了移動視訊革命，隨著智能手機、個人數字助理和基於IP的寬帶網絡（如GSM、EVDO和WiMAX）的普及，視訊通信和協作變得實用。

IP通信網絡的可用性增長開啟了視訊通信在各種應用中的實際使用，包括桌面協作、培訓、大學招聘、招聘、金融、司法、遠程學習、遠程醫療等。

最近在某處發生的一個有關基於IP的視訊會議的顯著影響的例子是，一名受傷的美國海軍陸戰隊員能夠在距離500英里的貝塞斯達海軍醫院的床上參與他的第一個孩子的出生過程。他能夠在整個分娩過程中看到、聽到並與妻子交談。

無論應用是什麼，顯然視訊會議已成為一種可以對人們的生活產生戲劇性影響的工具，無論是個人還是專業。本書提供了對該技術、標準、應用和實施的全面理解，以發揮其潛力。