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Web Cameras And Their Applications to the Corporate Information Infrastructure

Web Cameras And Their Applications to the Corporate Information Infrastructure. Shilpa Jaswal Feb 14, 2001. What is a WebCam?. It is a web page which hosts images or even live video streams served by a digital camera attached to a computer.

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Web Cameras And Their Applications to the Corporate Information Infrastructure

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  1. Web Cameras And Their Applications to the Corporate Information Infrastructure Shilpa Jaswal Feb 14, 2001

  2. What is a WebCam? • It is a web page which hosts images or even live video streams served by a digital camera attached to a computer. • For less than $100 and an Internet dial-up connection, one can set up his own camera on the Internet. Web

  3. A Digital Camera A Web Cam Software in a Server Basic technical knowledge of how Internet works. Web What Is Needed to Setup a WebCam?

  4. Methods To setup a WebCam: • Client Pull • Server Push

  5. Methods to Setup a WebCam: Client Pull • Client pull method uses single snapshots of whatever the WebCam points to. • Process: • Web Camera takes snap and saves into JPEG File (e.g., CAM.JPG) • Simple html page served from WebServer, loads CAM.JPG on client request • (e.g. <img src=“CAM.JPG”> Remote Web Surfer Corporate LAN CAMERA -- PnP/Video/Digital Camera Computer Connected to Web Cam Computer Connected to Web Cam ISP hosted Web-Server with Video-Picture Serving Software

  6. Methods to Setup a WebCam: Server Push • Server push allows the user to view real time video streams coming directly from web cam. • Requires Streaming software in Webserver (e.g. special applet or software like RealNetwork) Remote Web Surfer Corporate LAN CAMERA -- PnP/Video/Digital Camera Computer Connected to Web Cam Computer Connected to Web Cam Web-Server with Video-Picture Streaming Software

  7. Easy to setup. Doesn’t take much bandwidth. Works perfectly for dial-up style internet connections. Won’t be able to serve video feeds with this method. Relatively more cumbersome. Requires high bandwidth connection. Doesn't work good with Dial-up style internet connection. Will be able to view real-time video streams. Only most recent browser versions support this method. Advantages/Disadvantages of Methods Client Pull Server Push

  8. Important Considerations • Image Size: • Larger image will take more time to load, but resolution can be good. • Compromise should be based on bandwidth and clarity • Refresh Rate: • Higher refresh rate takes more bandwidth, but picture may look more connected • Compromise is based on bandwidth and continuity. • A reasonably user-accessible image size can be 320x240 for a refresh rate of 20-30 seconds (28k Modem)

  9. Application of WebCam • Video-Conferencing • Net-meeting • Customer - Sales Product Demo • Product Design/Development • Virtual Facility Tour • Facility Surveillance • Monitoring Events/Places • Remote Product Training

  10. Conclusions • WebCam can be an excellent cost saving tool for a business. • The setup can be as cheap as $100 per station or as expensive as $10,000 per station depending on the functionality. • One should be careful about the bandwidth requirements when connected to the web.

  11. References • http://developers.webcamworld.com/index.html • http://www.teleport.com/~samc/bike/ • http://netconference.about.com/internet/netconference/cs/officecamsparti/index.htm • http://www.microsoft.com/windows/netmeeting/corp/default.asp • http://www.microsoft.com/windows/netmeeting/corp/default.asp

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