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Elli Angelopoulou Ph.D., Akad. Rat

Alumnus of the Pattern Recognition Lab of the Friedrich-Alexander-Universität Erlangen-Nürnberg

Vision

 

Elli Angelopoulou's Publications

Book Chapters

Angelopoulou, Elli. "Beyond Tri-chromatic Imaging." Book chapter in Imaging Beyond the Pinhole Camera, 12th Seminar on Theoretical Foundations of Computer Vision. Daniilidis, K., Klette, R. and Leonardis, A. eds. Kluwer Academic Publishers, 2005.

 

Journals

     

  1. Beigpour, Shida, Riess, Christian, van de Weijer, Joost and Angelopoulou, Elli. "Multi- Illuminant Estimation with Conditional Random Fields." IEEE Transactions on Image Processing (TIP). Vol. 23, No. 1, January 2014. pp. 83-96.
  2. Carvalho, Tiago, Riess, Christian, Angelopoulou, Elli, Pedrini, Helio and Rocha, Anderson. "Exposing Digital Image Forgeries by Illumination Color Classification." IEEE Transactions on Information Forensics and Security (TIFS). Vol. 8, No. 7, July 2013. pp. 1182-1194.
  3. Odstrcilik, Jan, Kolar, Radim, Budai, Attila, Hornegger, Joachim, Jan, Jiri, Gazarek, Jiri Kubena, Tomas, Cernosek, Pavel, Svoboda, Ondrej and Angelopoulou, Elli. "Retinal Vessel Segmentation by Improved Matched Filtering: Evaluation on a New High-Resolution Fundus Image Database." IET Image Processing.. Vol. 7, No. 4, June 2013, pp. 373-383.
  4. Mewes, Philip W., Foertsch, Stefan, Juloski, Aleksandar Lj, Angelopoulou, Elli, Goelder, Stefan K., Guldi, Dirk, Hornegger, Joachim and Messmann, Helmut. "Chromoendoscopy in Magnetically Guided Capsule Endoscopy." Biomedical Engineering Online. Vol. 12, No. 1, June 2013. (Highly Accessed).
  5. Christlein, Vincent, Riess, Christian, Jordan Johannes, Riess, Corinna, and Angelopoulou, Elli. "An Evaluation of Popular Copy-Move Forgery Detection Approaches." IEEE Transactions on Information Forensics and Security (TIFS). Vol. 7, No. 6, December 2012. pp. 1841-1854.
  6. Chatzichristofis, Savvas A., Iakovidou, Chryssanthi, Boutalis, Yiannis, S. and Angelopoulou, Elli. "Mean Normalized Retrieval Order (MNRO): A New Content Based Image Retrieval Performance Measure." Multimedia Tools and Applications. August 2012.
  7. Schmalz, Christoph, Forster, Frank, Schick, Anton and Angelopoulou, Elli. "An Endoscopic 3D Scanner based on Structured Light." Medical Image Analysis. Vol. 16, No. 5, July 2012, pp. 1063-1072.
  8. Placht, Simon, Stancanello, Joseph, Schaller, Christian, Balda, Michael and Angelopoulou, Elli. "Fast Time-of-Flight Camera Based Surface Registration for Radiotherapy Patient Positioning. " Medical Physics. . Vol. 39, No. 1, January 2012. pp. 4-17.
  9. Schmalz, Christoph, Forster, Frank and Angelopoulou, Elli. "Camera Calibration: Active versus Passive Targets." Optical Engineering (OE). Vol. 50, No. 11, November 2011.
  10. Mewes, Philip, W., Foertsch, Stefan, Angelopoulou, Elli, Guldi, Dirk, M. and Messmann, Helmut. " Chromoendoscopy with Automatic Lesion Enhancement in Magnetically Guided Capsule Endoscopy: a Feasibility Study." Gastroenterology, Vol. 140, No. 5, May 2011.
  11. Feulner, Johannes, Zhou, Kevin S., Seifert, Sacha, Cavallaro, Alexander, Hornegger, Joachim, Comanicu, Dorin and Angelopoulou, Elli. "Comparing Axial CT Slices in Quantized N-dimensional SURF Descriptor Space to Estimate the Visible Body Region." Computerized Medical Imaging and Graphics, Vol. 35, No. 3, April 2011. pp. 227-236.
  12. Wang, Hongzhi and Angelopoulou, Elli. "Spectral Band Selection for Multispectral Imaging via Average Normalized Information." Journal of Real-Time Image Processing (JRTIP), Vol. 1, No. 2, December 2006. pp. 109-121.
  13. 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.
  14. 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.

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Software

     

  1. Paranjape, Maithili and Angelopoulou, Elli. "MultiSFAMS: MultiSpectral Fast Adaptive Mean Shift"
  2. Angelopoulou, Elli, Paranjape, Maithili and Kothavade, Tanuja.  "Multissa: MultiSpectral Scene Analysis  Software."

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Refereed Conferences

     

  1. Magaraggia, Jessica, Kleinszig, Gerhard, Wei, Wei, Weiten, Markus, Graumann, Rainer, Angelopoulou, Elli and Hornegger, Joachim. "On the Accuracy of a Video-Based Drill- Guidance Solution for Orthopedic and Trauma Surgery." SPIE Medical Imaging (SPIE). February 2014.

  2. Riess, Christian, Pfaller, Sven, Bernecker, David and Angelopoulou, Elli. "Towards the Estimation of Non-Uniform Illumination in Real-World Scenes." Workshop Farbbildbverarbeitung (Color Image Processing Workshop). September 2013.

  3. Jordan, Johannes and Angelopoulou, Elli. "Mean-Shift Clustering for Interactive Multispectral Image Segmentation Analysis." International Conference on Image Processing (ICIP). September 2013.
  4. Bernecker, David, Riess, Christian, Angelopoulou, Elli and Hornegger, Joachim. "Representation Learning for Cloud Classification." German Conference on Pattern Recognition (former DAGM). September 2013. pp. 395-404.
  5. Jordan, Johannes and Angelopoulou, Elli. "Hyperspectral Image Visualization with a 3-D Self-Organizing Map." Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS). June 2013.
  6. Christlein, Vincent, Riess, Christian, Angelopoulou, Elli, Evangelopoulos, George and Kakadiaris, Ioannis. "The Impact of Specular Highlights on 3D-2D Face Recognition." SPIE Conference on Biometric and Surveillance Technology for Human and Activity Identification (SPIE). SPIE Vol. 8712. May 2013.
  7. Meyer, Manuel, Riess, Christian, Angelopoulou, Elli, Evangelopoulos, George and Kakadiaris, Ioannis. "Color Constancy in 3D-2D Face Recognition." SPIE Conference on Biometric and Surveillance Technology for Human and Activity Identification (SPIE). SPIE Vol. 8712. May 2013.
  8. Magaraggia, Jessica, Egli, Adrian, Kleinszig, Gerhard, Graumann, Rainer, Angelopoulou, Elli and Hornegger, Joachim. "Calibration of a Camera-Based Video Guidance Solution for Orthopedic and Trauma Surgery." Bildverarbeitung fuer die Medizin (BVM). March 2013.
  9. Magaraggia, Jessica, Kleinszig, Gerhard, Graumann, Rainer, Angelopoulou, Elli and Hornegger, Joachim. "A Video Guided Solution for Screw Insertion in Orthopedic Plate Fixation." SPIE Medical Imaging (SPIE). SPIE Vol. 8671. February 2013.
  10. Eibenberger, Eva and Angelopoulou, Elli. "The Importance of the Normalizing Channel in Log-Chromaticity Space." International Conference on Image Processing (ICIP). October 2012.
  11. Jordan, Johannes and Angelopoulou, Elli. "Supervised Multispectral Image Segmentation with Power Watersheds." International Conference on Image Processing (ICIP). October 2012.
  12. Zach, Fabian, Riess, Christian and Angelopoulou, Elli. "Automated Image Forgery Detection through Classification of JPEG Ghosts." Annual Symposium of the German Association for Pattern Recognition (DAGM). August 2012.
  13. Bernecker, David, Riess, Christian, Angelopoulou, Elli and Hornegger, Joachim. "Towards Improving Solar Irradiance Forecasts with Methods from Computer Vision." DAGM Workshop on Computer Vision in Applications (DAGM Workshop). August 2012.
  14. Mewes, Philip, Rennert, Peter, Juloski, Aleksander, Lalande, Alain, Kuth, Rainer, Angelopoulou, Elli and Hornegger, Joachim. "Semantic and Topological Classification of Images in Magnetically Guided Capsule Endoscopy." SPIE Medical Imaging (SPIE). February 2012.
  15. Bleier, Michael, Riess, Christian, Beigpour, Shida, Eibenberger, Eva, Angelopoulou, Elli, Troeger, Tobias and Kaup, Andre. "Color Constancy and Non-Uniform Illumination: Can Existing Algorithms Work?" ICCV Workshop on Color and Photometry in Computer Vision (ICCV Workshop). November 2011.
  16. Riess, Christian, Eibenberger, Eva and Angelopoulou, Elli. "Illuminant Color Estimation for Real World Mixed-Illuminant Scenes." ICCV Workshop on Color and Photometry in Computer Vision (ICCV Workshop). November 2011.
  17. Malskies, Christoph, Eibenberger, Eva and Angelopoulou, Elli. "The Recognition of Ethnic Groups based on Histological Skin Properties." International Workshop on Vision, Modeling and Visualization (VMV). October 2011.
  18. Linarth, Andre and Angelopoulou, Elli. "On Feature Priors for Particle Filter based Lane Detection." IEEE Conference on Intelligent Transportation Systems Conference (ITSC). October 2011.
  19. Mewes, Philip, Licegevic, Oleg, Juloski, Aleksander, Neumann, Dominik, Angelopoulou, Elli and Hornegger, Joachim. "Automatic Region-of-Interest Segmentation and Pathology Detection in Magnetically Guided Capsule Endoscopy." International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI) 2011. Lecture Notes in Computer Science. Springer-Verlag, September 2011.
  20. Jordan, Johannes and Angelopoulou, Elli. "Edge Detection in Multispectral Images Using the N-Dimensional Self-Organizing Map." International Conference on Image Processing (ICIP). September 2011.
  21. Mewes, Philip, W., Foertsch, Stefan, Angelopoulou, Elli, Guldi, Dirk, M. and Messmann, Helmut. "Chromoendoscopy with Automatic Lesion Enhancement in Magnetically Guided Capsule Endoscopy: a Feasibility Study." Digestive Disease Week (DDW). May 2011.
  22. Kollorz, Eva, Angelopoulou, Elli, Beck, M. Schmidt, D. and Kuwert, T. "Using Power Watersheds to Segment Benign Thyroid Nodules in Ultrasound Image Data." Bildverarbeitung fuer die Medizin (BVM). March 2011.
  23. Mewes, Philip, W., Neumann, Dominik, Juloski, Aleksandar L., Angelopoulou, Elli and Hornegger, Joachim. "On-the-fly Detection of Images with Gastritis Aspects in Magnetically-Guided Capsule Endoscopy." SPIE Medical Imaging (SPIE). SPIE Vol. 7963. SPIE Press, February 2011.
  24. Christlein, Vincent, Riess, Christian and Angelopoulou, Elli. "On Rotation-Invariance in Copy-Move Forgery Detection." IEEE Workshop on Information Forensics and Security (WIFS). December 2010.
  25. Jordan, Johannes and Angelopoulou, Elli. "Gerbil - A Novel Software Framework for Visualization and Analysis in the Multispectral Domain." International Workshop on Vision, Modeling and Visualization (VMV). November 2010.
  26. Christlein, Vincent, Riess, Christian and Angelopoulou, Elli. "A Study on Features for the Detection of Copy-Move Forgeries." Sicherheit. October 2010.
  27. Schmalz, Christoph and Angelopoulou, Elli. "Belief Propagation for Improved Color Assessment in Structured Light." Annual Symposium of the German Association for Pattern Recognition (DAGM). September 2010.
  28. Eibenberger, Eva and Angelopoulou, Elli. "Beyond the Neutral Interface Reflection Assumption in Illuminant Color Estimation." International Conference on Image Processing (ICIP). September 2010.
  29. Eibenberger, Eva and Angelopoulou, Elli. "The Narrow-Band Assumption in Log-Chromaticity Space." ECCV Workshop on Color and Reflectance in Imaging and Computer Vision (ECCV Workshop). September 2010.
  30. Riess, Christian and Angelopoulou, Elli. "Scene Illumination as an Indicator of Image Manipulation." Information Hiding Conference (IH). June 2010.
  31. Schmalz, Christoph and Angelopoulou, Elli. "A Graph-Based Approach for Robust Single-Shot Structured Light." CVPR Workshop on Projector-Camera Systems (CVPR Workshop). June 2010.
  32. Riess, Christian and Angelopoulou, Elli. "Physics Based Illuminant Color Estimation as a Semantics Clue." International Conference on Image Processing (ICIP). November 2009.
  33. Linarth, Andre G., Brucker, Manuel and Angelopoulou, Elli. "Robust Ground Plane Estimation Based on Particle Filters." IEEE Conference on Intelligent Transportation  Systems Conference (ITSC). October 2009. pp. 134-140.
  34. Riess, Christian, Jordan, Johannes and Angelopoulou, Elli. "A Common Framework for Ambient Illumination in the Dichromatic Reflectance Model." ICCV Workshop on Color and Reflectance in Imaging and Computer Vision (ICCV Workshop). October 2009.

  35. Angelopoulou, Elli. "Specular Highlight Detection Based on the Fresnel Reflection Coefficient." IEEE International Conference on Computer Vision (ICCV) 2007. IEEE Computer Society Press, October 2007.

  36. Wenhardt, Stefan, Deutsch, Benjamin, Angelopoulou, Elli and Niemann, Heinrich. "Active Visual Object Reconstruction using D-, E-, and T-Optimal Next Best Views." CVPR Workshop on Beyond Multiview Geometry (CVPR Workshop) 2007. IEEE Computer Society Press, June 2007.
  37. Wang, Hongzhi and Angelopoulou, Elli. "Spectral Band Selection for Multispectral Imaging via Average Normalized Information." ECCV International Workshop on Spectral Imaging (ECCV Workshop). May 2006. pp 5-13.
  38. Dragnea, Viorel and Angelopoulou, Elli. "Direct Shape from Isophotes." ICCV Workshop Towards Benchmarking Automated Calibration, Orientation and Surface Reconstruction from Images (BenCOS ICCV Workshop). October 2005.
  39. Angelopoulou, Elli and Poger, Sofya.  "Specular Highlights of Plastic Surfaces and the Fresnel Coefficient." Proceedings of the SPIE Conference on Imaging, Displays and Detectors (SPIE) 2004. SPIE Vol. 5578. SPIE Press, December 2004. pp. 465-475.
  40. Angelopoulou, Elli and Poger, Sofya.  "The Color of Specular Highlights." Proceedings of the SPIE Conference on Human Vision and Electronic Imaging VIII (SPIE) 2003. SPIE Vol. 5007. SPIE Press, May 2003. pp. 298-309.
  41. Angelopoulou, Elli, Molana, Rana and Daniilidis, Kostas.  "Multispectral Skin Color Modeling". IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2001. IEEE Computer Society Press, December 2001. pp. 635-642.
  42. Poger, Sofya and Angelopoulou, Elli.  "Selecting Components for Building Multispectral Sensors". IEEE CVPR Technical Sketches (CVPR Tech Sketches) 2001. IEEE Computer Society Press, December 2001.
  43. Angelopoulou, Elli.  "Understanding the Color of Human Skin." Proceedings of the SPIE Conference on Human Vision and Electronic Imaging VI (SPIE) 2001. SPIE Vol. 4299. SPIE Press, May 2001. pp. 243-251.
  44. Angelopoulou, Elli. "Objective Colour from Multispectral Imaging." Proceedings of 6th European Conference in Computer Vision (ECCV) June 2000. Lecture Notes in Computer Science, Vol. 1843. Springer-Verlag, 2000. pp. 359-374.
  45. 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. IEEE Computer Society Press, September 1999. pp. 861-867.
  46. Angelopoulou, Elli and Williams, James P. "Photometric Surface Analysis in a Tri-Luminal Environment." Proceedings of IEEE International Conference on Computer Vision (ICCV) 1999. IEEE Computer Society Press, September 1999. pp. 442-449.
  47. Angelopoulou, Elli. "Gaussian Curvature from Photometric Scatter Plots." Proceeding of IEEE Workshop on Photometric Modeling for Computer Vision and Graphics (PMCVG, CVPR Workshop) 1999. IEEE Computer Society Press, June 1999. pp. 12-19.
  48. 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.
  49. 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.
  50. 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.
  51. 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.
  52. 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. Springer Verlag 1994. pp. 247-258.
  53. 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.
  54. Angelopoulou, Elli, Tsai-Hong, Hong, and Wu, Angela. "World Model Representation." Proceedings IEEE Intelligent Vehicles 92.

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Invited Papers

     

  1. Angelopoulou, Elli. "The Uniqueness of the Color of Human Skin." Electronic Imaging (EI), Vol. 11, No. 2. SPIE Press, June 2001. p. 5 
  2. Angelopoulou, Elli. "Dense Spectral Sampling in the Visible Range with Applications in Invariant Color Identification." Proceedings of the 2000 Conference on Information Sciences and Systems (CISS) . March 2000. pp. WP5-1 - WP5-7.

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Non-Refereed Publications

     

  1. Riess, Christian, Eibenberger, Eva and Angelopoulou, Elli. "Illuminant Estimation by Voting." Friedrich-Alexander Universitaet Erlangen-Nuernberg Technical Report. November 2009.
  2. Wang, Hongzhi and Angelopoulou, Elli. "Average Normalized Information: a Novel Entropy-Based Band Selection Method." Stevens Institute of Technology Technical Report, CS-2004-13. September 2004.
  3. Shi, Dongmei and Angelopoulou, Elli. "Dimensionality Reduction for Multispectral Skin Data." Stevens Institute of Technology Technical Report, CS-2004-9. July 2004.
  4. Poger, Sofya and Angelopoulou, Elli. "Multispectral Sensors in Computer Vision." Stevens Institute of Technology Technical Report, CS-2001-3. August 2001.
  5. Angelopoulou, Elli, Molana, Rana and Daniilidis, Kostas. "Multispectral Skin Color Modeling." University of Pennsylvania Technical Report MS-CIS-01-22 (Tech. Rep.).June 2001.
  6. Angelopoulou, Elli. "The Reflectance Spectrum of Human Skin." University of Pennsylvania Technical Report MS-CIS-99-29 (Tech. Rep.). December 1999.
  7. Angelopoulou, Elli and Wright, John R. Jr. "Laser Scanner Technology." University of Pennsylvania Technical Report MS-CIS-99-16 (Tech. Rep.). June 1999.
  8. Angelopoulou, Elli, Lee, Sang W. and Bajcsy, Ruzena. "Spectral Gradient: A Surface Reflectance Measurement Invariant to Geometry and Incident Illumination." University of Pennsylvania Technical Report MS-CIS-99-02 (Tech. Rep.). January 1999.
  9. 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.
  10. 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.
  11. 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.

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