Dr. Alexander Andreopoulos
email: alekos [at] cse.yorku.ca

I am currently a researcher at IBM-Almaden, working on the Cognitive Computing project.
During 2011 I was a post-doctoral research scientist in the Department of Computer Science and Engineering
at York University working under the supervision of Professor John K. Tsotsos.
I completed my Ph.D. on Active Object Recognition in January 2011.
In 2005 I completed an M.Sc. degree at York University. My M.Sc. thesis dealt with medical
imaging and the analysis of cardiac MR images.
In 2003 I completed an Honours B.Sc. at the University of Toronto, in Computer Science and
Mathematics, graduating top of my class in Computer Science.
My current research interests lie in the areas of Vision-based Robotics, Active Vision, Object Recognition, and Medical Imaging.

Publications

Alexander Andreopoulos, John K. Tsotsos. 50 Years of Object Recognition: Directions Forward (submitted).

Alexander Andreopoulos, John K. Tsotsos. A Computational Learning Theory of Active Object
Recognition Under Uncertainty. International Journal of Computer Vision (in revision).

Alexander Andreopoulos. Active Object Recognition in Theory and Practice. Doctoral Dissertation,
York University, Dept. of Computer Science and Engineering, January 2011. [PDF].

Alexander Andreopoulos, John K. Tsotsos. On Sensor Bias In Experimental Methods for Comparing Interest Point,
Saliency and Recognition Algorithms. IEEE Transactions On Pattern Analysis and Machine Intelligence. January 2012, Vol.34, Number 1 [PDF].

A. Andreopoulos, S. Hasler, H. Wersing, H. Janssen, J. Tsotsos, and E. Körner. Active 3D
Object Localization Using A Humanoid Robot. IEEE Transactions on Robotics. February 2011, Vol.27, Number 1 [PDF]

Alexander Andreopoulos, John K. Tsotsos, A Theory of Active Object Localization
IEEE International Conference on Computer Vision, 2009, Kyoto, Japan. [PDF]

Alexander Andreopoulos, John K. Tsotsos, Efficient and Generalizable Statistical Models of Shape and Appearance
for Analysis of Cardiac MRI, Medical Image Analysis, Volume 12, Issue 3, June 2008, Pages 335-357.[PDF] [Cardiac MRI dataset]

Alexander Andreopoulos, John K. Tsotsos, Active Vision for Door Localization and Door Opening
Using Playbot: A Computer Controlled Wheelchair for People with Mobility Impairments,
In Proceedings of the 5th Canadian Conference on Computer and Robot Vision, 2008, Windsor, Canada.
(Best Robotics Paper Award). [PDF], Video:[High Resolution] [Low Resolution]

Alexander Andreopoulos, John K. Tsotsos, Information Fusion for Multi-Camera and Multi-Body Structure and Motion,
8th Asian Conference on Computer Vision (ACCV 2007), Tokyo, Japan, Nov 18-22, 2007 [PDF]

Alexander Andreopoulos, John K. Tsotsos, A Framework for Door Localization and Door Opening Using a Robotic
Wheelchair for People Living with Mobility Impairments, Robotics: Science and Systems, Workshop: Robot
Manipulation: Sensing and Adapting to the Real World, Atlanta, June 30, 2007.[PDF1][PDF2]

Alexander Andreopoulos, Bill Andreopoulos, Aijun An, Xiaogang Wang, Translation and Rotation Invariant Mining of Frequent
Trajectories: Application to Protein Unfolding Pathways, 11th Pacific-Asia Conference on Knowledge
Discovery and Data Mining (PAKDD) Workshop on Data Mining for Biomedical Applications (BioDM2007),
Nanjing, China, 2007.[PDF]

Rotenstein A., Andreopoulos A., Fazl E., Jacob D., Robinson M., Shubina K., Zhu Y., Tsotsos J.K., Towards
the dream of intelligent, visually-guided wheelchairs, Proc. 2nd International Conference on Technology
and Aging, Toronto, Canada, June 2007.[PDF]

Alexander Andreopoulos, John K. Tsotsos, A Novel Algorithm for Fitting 3-D Active Appearance Models:
Applications to Cardiac MRI Segmentation, In Proceedings of the 14th Scandinavian Conference
on Image Analysis, Joensuu, Finland, 2005. [PDF]    [ABSTRACT]

Alexander Andreopoulos, John K. Tsotsos, Resampling 4-D Images Using Adaptive Filtering, In Proceedings of the
2nd Canadian Conference on Computer and Robot Vision, Victoria, Canada, 2005. [PDF]    [ABSTRACT]

Alexander Andreopoulos, Statistical Models of Appearance for Functional Analysis of Cardiac MRI,  M.Sc. Thesis
York University, May 2005. [PDF]    [ABSTRACT]

Links