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Teleobservation

Teleobservation. CEE398KUC: Experimental Methods in Structural Engineering. Web-Based Remote Control Video Camaras. Spring 04. Fernando Medina Reguera. What is Teleobservation?. Receive visual information that makes the observer feel present at a remote location ENOUGH INFORMATION

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Teleobservation

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  1. Teleobservation CEE398KUC: Experimental Methods in Structural Engineering Web-Based Remote Control Video Camaras Spring 04 Fernando Medina Reguera

  2. What is Teleobservation? • Receive visual information that makes the observer feel present at a remote location • ENOUGH INFORMATION • NATURAL WAY • Component of the Telepresence

  3. Telepresence • "enables people and objects to feel as if they are actually present in a different place or time." • “capability to participate remotely in experimental trials” • Teleobservation + Teleoperation • Teleoperation: • The operator feels present at the remote site • Interaction • Operator and teleoperator can be the same person!!! (scale)

  4. Collaboratory • Why… • Telepresence? • Need for real time fluid communication (share) • Expand laboratories • Teleobservation? • Procedures control during teleoperation • Improve feeling of participation • Improve communication (video conferencing): remote presence; no more traveling! • Remote Audiences

  5. What do I need? • Camera • Communication Camera, WebCam • Camera Control Software • Remote control of camera functions • Network Server Contract • Encoded Video Storage and Distribution • Web Site!!!

  6. Communication Camera • Fixed Web Cameras • Directly connected to Network • Telerobotic Web Cameras • Serial Connector to Computer (software control and video capture setup) • Canon VC-3 / VC-4

  7. Communication Camera • Software and Infrared Controlled • Two Rotations and Zoom • Auto and Manual Focus • Audio integrated

  8. Network Server and Software • Broadware Technologies • Server Data Storage • Live Video • Video Recording • Software: Java Component • Camera Operation • Zoom and Rotations • Easily Integrated in HTML code • Works in every platform: Mac, Unix-Based, Windows • Video Codecs • Video Quality Setup

  9. Video Codecs • Live Video: • Number of fps (frames per sec) • Quality (size) of each frame • Inmediate Storage and Distribution of encoded frames: video stream • Recorded Video: • Minimize Size for Storage and Reproduction • Remote User CPU: • Great CPU Cost in downloading and playing at the time

  10. Web Environment • Web Site Ellaboration • JAVA component inserted in HTML Code • Server Connection • Camera Functions Controller • Variable number of differents Live Cameras in the same window • Share Spirit: Public Domain

  11. Teleobservation in Structural Engineering • NEESTPM: • Telepresence Observation Mode in Earthquake Engineering Laboratory Environments • UIUC Telepresence Laboratory: • Educational Telepresence Experimentation in Earthquake Engineering

  12. NEES Collaboratory • Nathan M. Newmark Lab Remote Control Camera • NEESTPM: http://cee-zztt.cee.uiuc.edu/ • Collaboratory Window • UIUC, Colorado, UNR, ANL

  13. NEESTPM: Illinois MOST

  14. ANL TPM • http://tpm.amc.anl.gov/TPMLVideo.html

  15. UIUC Telepresence Laboratory • http://tlee.cee.uiuc.edu/dreamer/telepresencelab.htm Location: Smart Structure Technology Laboratory at the UIUC • People: • Prof. B. F. Spencer, Jr., Tomonori Nagayama, Yong Gao

  16. Limitations • No Real Time Camera Control • Video Stream: CPU and Bandwidth requirements • Size: Low Resolution Image (natural way?) • Availability: few cameras, one operator at a time (sufficient?) • Cost!!!

  17. References • Broadware Technologies • NEES: UIUC, CORNELL, ANL • UIUC Telepresence Laboratory • Stanford University • Canon Communication Cameras • Telepresence (BT Labs, 1999)

  18. Acknowledgements • Tomonori Nagayama Graduate Research Assistant Department of Civil & Environmental Eng University of Illinois at U-C

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