Coughlan lab  

Smith-Kettlewell Eye Research Inst.

Brain and Cognitive Sciences

University of Rochester

Cognitive Science at New Bulgarian University

Vladimir V. Ivanchenko, PhD

CV ( doc )

The Smith-Kettlwell
Eye Research Inst.
2318 Fillmore st.
San-Francisco, CA 94115
tel: (415) 345-2006
vivanchenko@ski.org


Interests

 
Cell phone applications for visually impared
  • Aligning with a cross-walk intersection;
  • Obstacle / curb detection;
  • Programming in Symbian C++, S60 for Nokia N95 Smartphone;

Visual Perception and Learning
  • Non-linear visual cue combination and approximations to the Bayesian-optimal fusion;
  • Cue-invariant and cue-dependent mechanisms;
  • Transfer of perceptual learning;

Computer Graphics and Image Processing
  • Texture mapping and texture synthesis on 2D manifold;
  • Sampling quality versus speed of rendering;
  • Multiresolution representations;
  • Geodesic calculation and remeshing;

Machine Learning and Pattern Recognition

    Publications
  1. V. Ivanchenko, J. Coughlan, B. Gerrey and H. Shen. “Computer Vision-Based Clear Path Guidance for Blind Wheelchair Users.” To appear in 10th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2008). Halifax, Canada. Oct. 2008
  2. V. Ivanchenko, J. Coughlan and H. Shen. "Crosswatch: a Camera Phone System for Orienting Visually Impaired Pedestrians at Traffic Intersections." 11th International Conference on Computers Helping People with Special Needs (ICCHP '08). Linz, Austria. July 2008.pdf
  3. R. Manduchi, J. Coughlan and V. Ivanchenko. "Search Strategies of Visually Impaired Persons using a Camera Phone Wayfinding System." 11th International Conference on Computers Helping People with Special Needs (ICCHP '08). Linz, Austria. July 2008. pdf
  4. V. Ivanchenko, J. Coughlan and H. Shen. "Detecting and Locating Crosswalks using a Camera Phone." Fourth IEEE Workshop on Embedded Computer Vision, in conjunction with Computer Vision and Pattern Recognition (CVPR ‘08). Anchorage, Alaska. June 2008. Received Best Paper Award in Workshop on Embedded Computer Vision. pdf
  5. Roth, V., Ivanchenko, V., and Record, N. 2008. Evaluating student response to WeBWorK, a web-based homework delivery and grading system. Comput. Educ. 50, 4 (May. 2008), 1462-1482. pdf
  6. Ivanchenko V., Jacobs, R. A. (2005). Nonlinear integration of texture and shading cues on a slant discrimination task (presented at VSS, Sarasota FL) Abstract
  7. Ivanchenko, V., & Jacobs, R. A. (2004). Cue-invariant learning for visual slant discrimination Journal of Vision, 4(8), 295a
  8. Ivanchenko, V, Jacobs, R. A developmental approach aids motor learning (2003). Neural Computation.15:2051-2065
  9. Ivanchenko, V. The role of abstract patterns in implicit learning (2000). In Proceedings of the fourth International Conference in Cognitive Modeling, Fairfax, VA.

Code samples  

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