Nelson L. Chang, Ph.D.

Principal Scientist Multimedia Interaction and Understanding Lab address Hewlett-Packard Laboratories 1501 Page Mill Road, MS 1203 Palo Alto, CA 94304  USA phone +1.650.857.5563 (office) +1.650.857.2951 (fax)   email nelson.chang at hp.com url http://www.hpl.hp.com/personal/Nelson_Chang

Selected Research

	Pluribus scalable multi-projector displays Niranjan Damera-Venkata and Nelson L. Chang, "Display Supersampling," ACM Transactions on Graphics, vol. 28, issue 1, January 2009, Article 9. Niranjan Damera-Venkata, Nelson L. Chang, and Jeffrey M. DiCarlo, "A Unified Paradigm for Scalable Multiple Projector-Displays," IEEE Transactions on Visualization and Computer Graphics (Proceedings of IEEE Visualization Conference), vol. 13, no. 6, November/December 2007, pp. 1360--1367 [pdf]. Niranjan Damera-Venkata and Nelson L. Chang, "On the Resolution Limits of Superimposed Projection," IEEE International Conference on Image Processing (ICIP), San Antonio, TX, 16-19 September 2007, vol. V, pp. 373--376 [pdf]. Niranjan Damera-Venkata and Nelson L. Chang, "Realizing Super-Resolution with Superimposed Projection," IEEE International Workshop on Projector-Camera Systems (ProCams), Minneapolis, MN, 18 June 2007 [pdf].  (Best paper award winner) See related press articles on the Pluribus page.
	Immersive and interactive imaging Nelson L. Chang, "Creating Interactive 3-D Media with Projector-Camera Systems," SPIE Visual Communications and Image Processing Conference, San Jose, CA, 20--22 January 2004, vol. 5308, pp. 850--861  [pdf].  (Also, HP Labs Technical Report HPL-2003-229, 13 November 2003.) Nelson L. Chang, "Efficient Dense Correspondences using Temporally Encoded Light Patterns," IEEE International Workshop on Projector-Camera Systems (PROCAMS), Nice, France, 12 October 2003 [pdf].  (Also, HP Labs Technical Report HPL-2003-189, 4 September 2003.) Nelson L. Chang, "Interactive 3-D Media with Structured Light Scanning," HP Labs Technical Report HPL-2003-112, 29 May 2003. [html]
	Information visualization and access Nelson L. Chang and Amir Said, "Automatically Designed 3D Environments for Intuitive Exploration," IEEE International Conference on Multimedia and Expo (ICME), Taipei, Taiwan, June 2004 [pdf].  (Also, HP Labs Technical Report HPL-2003-92, 28 April 2003.) "HP Labs has 3D Vision," by Susan B. Shor, HP World Magazine, vol. 6, no. 5, May 2003. [html] "Labs Report: HP's 3D Databases, 'WebSign',' by Mark Hackman, Extreme Tech, 8 April 2003. [html] "HP Thinks in 3D for Web Browsing" by Michael Singer, Internet News, 25 March 2003. [html]
	Augmented reality interfaces Nelson L. Chang, "A Real-Time 3D Interface using Uncalibrated Cameras," SPIE Image and Video Communications and Processing Conference (IVCP), San Jose, CA, 18--20 January 2005, vol. 5685  [pdf].  (Also, HP Labs Technical Report HPL-2005-008, 13 January 2005.)
	Path-enhanced 3-D media Ramin Samadani, Debargha Mukherjee, Ullas Gargi, Nelson L. Chang, Daniel Tretter, and Michael Harville, "PathMarker: Systems for Capturing Trips," IEEE International Conference on Multimedia and Expo (ICME), Taipei, Taiwan, June 2004 [pdf]. Michael Harville, Ramin Samadani, Daniel Trettter, Debargha Mukherjee, Ullas Gargi, and Nelson L. Chang, "MediaBeads: An Architecture for Path-Enhanced Media Applications," IEEE International Conference on Multimedia and Expo (ICME), Taipei, Taiwan, June 2004 [pdf].

Education

• Ph.D. and M.S. in Electrical Engineering and Computer Sciences, University of California at Berkeley
• B.S.E. magna cum laude in Electrical Engineering, Princeton University

Professional Activities

• Co-chair of the IEEE International Workshop on Projector-Camera Systems (ProCams), 18 June 2007, held in conjunction with CVPR in Minneapolis, MN.
• Member, IEEE
• Member, ACM
• Member, SPIE/IS&T
• Member, Tau Beta Pi engineering honor society
• Air Force Laboratory Graduate Fellow