Journal Publications

• Angelopoulou, Elli and Wolff, Lawrence B. "Sign of Gaussian Curvature from Curve Orientation in Photometric Space." IEEE Transaction on Pattern Analysis and Machine Intelligence (PAMI), Vol. 20, No. 10, October 1998. pp. 1056-1066.
   
• Wolff, Lawrence B. and Angelopoulou, Elli. "Three Dimensional Stereo by Photometric Ratios." Journal of the Optical Society of America A: Optics, Image Science, and Vision (JOSA), Vol. 11, No. 11, November 1994. pp. 3069-3078.

Conference Publications

• Angelopoulou, Elli, Lee, Sang W. and Bajcsy, Ruzena. "Spectral Gradients: A Material Descriptor Invariant to Geometry and Incident Illumination." Proceedings of IEEE International Conference on Computer Vision (ICCV) 1999.
   
• Angelopoulou, Elli and Williams, James P. "Photometric Surface Analysis in a Triluminal Environment." Proceedings of IEEE International Conference on Computer Vision (ICCV) 1999.
   
• Angelopoulou, Elli and Wolff, Lawrence B. "Photometric Computation of the Sign of Gaussian Curvature Using a Curve Orientation Invariant." Proceedings of IEEE conference on Computer Vision and Pattern Recognition (CVPR) 1997. IEEE Computer Society Press, June 1997. pp. 432-437.
   
• Angelopoulou, Elli, Williams, James P. and Wolff, Lawrence B. "A Curvature Based Descriptor Invariant to Pose and Albedo Derived from Photometric Data." Proceedings of IEEE conference on Computer Vision and Pattern Recognition (CVPR) 1997. IEEE Computer Society Press, June 1997. pp. 165-171.
   
• Angelopoulou, Elli, Williams, James P. and Wolff, Lawrence B. "Curvature Based Signatures for Object Description and Recognition." Proceedings of the SPIE Conference on Three-Dimensional Imaging and Laser-Based Systems for Metrology and Inspection II (SPIE) 1996. SPIE Vol. 2909, January 1997. pp. 192-203.
   
• Angelopoulou, Elli, Williams, James P. and Wolff, Lawrence B. "Curvature Based Signatures for Object Description and Recognition." Proceedings of the ECCV'96 International Workshop on Object Representation in Computer Vision II (ECCV Workshop) . Springer-Verlag, 1996. pp. 109-130.
   
• Wolff, Lawrence B. and Angelopoulou, Elli. "3-D Stereo Using Photometric Ratios." Proceedings of 3rd European Conference in Computer Vision (ECCV) 1994, Lecture Notes in Computer Science, Vol. 801, pp. 247-258.
   
• Wolff, Lawrence B. and Angelopoulou, Elli. "3-D Stereo Using Photometric Ratios." Proceedings of SPIE Conference on Optics, Illumination, and Image Sensing for Machine Vision VIII (SPIE)1993. SPIE Vol. 2065, March, 1994. pp. 194-210.
   
• Angelopoulou, Elli, Tsai-Hong, Hong, and Wu, Angela. "World Model Representation." Proceedings IEEE Intelligent Vehicles 92.  

Non-Refereed Conferences

• Angelopoulou, Elli and Wolff, Lawrence B. "Photometric Computation of the Sign of Gaussian Curvature Using a Curve Orientation Invariant." Proceedings of Image Understanding Workshop (IUW) 1997. Morgan Kaufmann Publishers, May 1997.
   
• Angelopoulou, Elli, Williams, James P. and Wolff, Lawrence B. "Curvature Based Signatures for Object Description and Recognition." Proceedings of Image Understanding Workshop (IUW) 1996. Morgan Kaufmann Publishers, February 1996, pp. 973-980.
   
• Wolff, Lawrence B. and Angelopoulou, Elli. "3-D Stereo Using Photometric Ratios." Proceedings of Image Understanding Workshop (IUW) 1993. Morgan Kaufmann Publishers, April 1993. pp. 987-992.