Nilanjan Ray

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VIVA Affiliation

Research Scientist, Research Assistant
2000 - 2005

Degrees

Ph.D. Electrical Engineering, University of Virginia
M.S. Technology in Computer Science, Indian Statistical Institute, Inda
B.S. Mechangical Engineering, Jadavpur University of Calcutta, India

Biographical Sketch

Dr. Ray was recently a research scientist at the C.L. Brown Department of Electrical and Computer Engineering, University of Virginia. Previously Ray worked as a Research Engineer at Indian Statistical Institute, Kolkata, India and as a Software Engineer at Price WaterHouse Coopers, Kolkata, India. Ray was a recipient of best student paper award at IEEE international conference on image processing, held at Rochester, NY, 2002 from IBM Picture Processing Society; CIMPA-UNESCO fellowship for image processing school in 1999; graduate fellowship at Indian Statistical Institute from 1995 to 1997.

Research Interests

Ray's areas of research included image segmentation and object tracking through active contours, sequential Markov chain Monte Carlo method for multiple target tracking, active contour models and applications of partial differential equations in image processing, curve evolution techniques, and morphological connected operators.

Books

• Scott T. Acton and Nilanjan Ray, Biomedical image analysis: Tracking and segmentation. Lecture series editor: Prof. Al. Bovik. Morgan & Claypool Publishers.

Journal Publications

• N. Ray and S.T. Acton, "Data acceptance for automated leukocyte tracking through segmentation of spatiotemporal images," accepted in IEEE Trans. Biomedical Engineering
• N. Ray and S.T. Acton,"Motion gradient vector flow: An external force for tracking rolling leukocytes with shape and size constrained active contour," IEEE Trans. Medical Imaging, vol. 23, pp. 1466-1478, 2004.
• N. Ray and S.T. Acton,"Inclusion filters: A class of self-dual connected operators," accepted in IEEE Trans. Image Processing.
• N. Ray, S.T. Acton, T. Altes, E.E. de Lange and J.R. Brookeman,"Merging parametric active contours within homogeneous image regions for MRI-based lung segmentation," IEEE Trans. Medical Imaging, vol.22, no. 1, pp.189-199, 2003.
• N. Ray, S.T. Acton, K.F. Ley,"Tracking leukocytes in vivo with shape and size constrained active contours," IEEE Trans. Medical Imaging, special issue on Image Analysis in Drug Discovery and Clinical Trials, vol.21, no. 10, pp. 1222-1235, 2002.
• N. Ray, B. Chanda and J. Das,"A fast and flexible multiresolution snake with a definite termination criterion," Pattern Recognition, vol. 34, pp.1483-1490, 2001.
• N. Ray, D.P. Mukherjee, and J. Das,"Identification of tracer cloud: A shape based approach" Current Science, Vol. 76, No.7, 1999, a publication from Indian Academy of Sciences.
• D.P. Mukherjee, N. Ray and S.T. Acton,"Level set analysis for cell detection and tracking," in press, IEEE Trans. Image processing, vol.13, no.4, pp.562-572, 2004.
• S. Jeyamkondan, N. Ray, G.A. Kranzler, and N. Biju,"Computer vision segmentation of the longissimus dorsi for beef quality grading," Transactions of the ASAE, vol. 47, no. 4, pp.1261-1268, 2004.
• G. Dong, N. Ray and S.T. Acton,"Intravital leukocyte detection using gradient inverse coefficient of variation," in revision, IEEE Trans. Medical Imaging.
  

Conference Publications

• N. Ray, G. Dong and S.T. Acton, "Tracking multiple cells by correspondence resolution in a sequential Bayesian framework," submitted to 2005 IEEE International Conference on Image Processing, Genoa, Italy.
• N. Ray and S.T. Acton,"Spatiotemporal segmentation for validation of rolling leukocyte tracking data," accepted at 2005 IEEE International Conference on Acoustics, Speech, and Signal Processing.
• R. Janiczek, N. Ray, F. Epstein, S.T. Acton,"A Markov chain Monte Carlo method for tracking myocardial borders," invited paper at IS&T/SPIE 17th annual symposium on electronic imaging science and technology, January 16-20, 2005.
• G. Dong, N. Ray and S.T. Acton,"Automated Leukocyte Detection In Vivo," accepted at 38th Asilomar conference on Signals, Systems and Computers, Pacific Grove, CA, Nov 7-Nov.10, 2004.
• S.T. Acton and N. Ray,"Detection and tracking of rolling leukocytes from intravital microscopy," invited paper in 2004 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Arlington, Virginia, April 15-18, 2004.
• N. Ray and S.T. Acton,"Tracking rolling leukocytes with motion gradient vector flow", accepted in Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, November 9-12, 2003.
• N. Ray and S.T. Acton,"Self-dual inclusion filters for grayscale imagery," in press, the proceedings of IEEE International Conference on Image Processing, Barcelona, Spain, September 14-17, 2003.
• N. Ray and S.T. Acton,"Tracking fast-rolling leukocytes in vivo with active contours," in Proceedings of IEEE ICIP 2002, vol.3, pp.165-168. Won best student paper award from IBM SP society.
• N. Ray and S.T. Acton,"Active contours for cell tracking," In the Proceedings of Southwest Symposium on Image Analysis and Interpretation, sponsored by the IEEE computer society and IEEE Signal Processing Society, Santa Fe, New Mexico, April 7-9, 2002.
• J. Tang, G. Dong, N. Ray, S.T. Acton,"Evaluation of Intravital Tracking Algorithms," IEEE International Midwest Symposium on Circuits and Systems, Tulsa, Oklahoma, August, 2002.
• N. Ray and S.T. Acton,"Adaptive image processing via snake filters," In the proceedings of 35th Asilomar conference on Signals, Systems and Computers, Pacific Grove, CA, Nov 4-Nov.7, 2001.
• N. Ray, J. Havlicek, S.T. Acton and M. Pattichis,"Active contour segmentation guided by AM-FM dominant component analysis," In the Proceedings of IEEE ICIP 2001, pp.78-81.
• N. Ray, S.T. Acton, T. Altes, E.E. de Lange"MRI ventilation analysis by merging parametric active contours," In the Proceedings of IEEE ICIP 2001, pp.861-864.
• N. Ray and S.T. Acton,"Image segmentation by curve evolution with clustering," In the proceedings of 34th Asilomar conference on Signals, Systems and Computers, Pacific Grove, CA, pp.495-498, Oct 29-Nov.1, 2000.
• S. Jeyamkondan, N. Ray, G.A. Kranzler, and B. Nisha, "Beef quality grading using machine vision," In the Proceedings of SPIE, Vol. 4203, pp.91-101, 2000.
• S. Jeyamkondan, N. Ray, G.A. Kranzler, and J. Nelson,"Adaptive segmentation of longissimus dorsi using fuzzy c-means and convex hull," Presented at the Oklahoma section of the American Society of Agricultural Engineering meeting, 27 October 2000.
• A. Chanda, N. Ray, P. Pal and J. Das, "A 3-D Erosion Model for Image Processing with Special Reference to Cloud IR Image," in The 4th International Conference on Advances in Pattern Recognition and Digital Techniques, December 27-29, 1999, Indian Statistical Institute, Calcutta, India.