Academic Publications

Masters Thesis

Mathematical models for prediction and optimal mitigation of epidemics.

Doctoral Dissertation

Automated Segmentation and Pathology Detection in Ophthalmic Images

Journal Publications

[J10] GN Girish, VA Animaa, A. R. Kothari, PV Sudeep, S. Roychowdhury, J. Rajan. "A Benchmark Study of Automated Intra-retinal Cyst Segmentation Algorithms using Optical Coherence Tomography B-Scans", Elsevier Computer Methods and Programs in Biomedicine. October 2017. (Preprint)

[J9] S. Roychowdhury, Paul Hage, Joseph Vasquez. “Azure-Based Smart Monitoring System for Anemia-Like Pallor”, Future Internet 9.3 (2017): 39.

[J8] S. Roychowdhury, Matthew Bihis. “AG-MIC: Azure-based Generalized flow for Medical Image Classification”, in IEEE Access, vol. 4, no. , pp. 5243-5257, 2016. doi: 10.1109/ACCESS.2016.2605641

[J7] S. Roychowdhury, M. Emmons. "A Survey of the Advances in Facial Expression Recognition Databases and Algorithms", International Journal of Computer Science and Engineering Survey, vol. 6, no. 5, October 2015. [15% Acceptance Rate]

[J6] S. Roychowdhury, D.D. Koozekanani, Sam N. Kuchinka, K.K. Parhi. “Optic Disc Boundary and Vessel Origin Segmentation of Fundus Images”, IEEE Journal on Biomedical and Health Informatics. vol. 20, no. 6, pp. 1562-1574, Nov. 2016. doi: 10.1109/JBHI.2015.2473159. [Optic Disc Ground Truth]

[J5] S. Roychowdhury, D.D. Koozekanani, K.K. Parhi. “Iterative Vessel Segmentation of Fundus Images”, IEEE Transactions on Biomedical Engineering. vol.62, no.7, pp.1738-1749, July 2015. [Supplementary Material].[Segmentation Results]

[J4] S. Roychowdhury, D.D. Koozekanani, K.K. Parhi. “Blood Vessel Segmentation of Fundus Images by Major Vessel Extraction and Sub-image Classification”, IEEE Journal on Biomedical and Health Informatics, vol. 19, no. 3, pp. 1118–1128, May 2015. [Nominated for Journal Cover]. [Segmentation Results]

[J3] S. Roychowdhury, D.D. Koozekanani, K.K. Parhi. “DReAM: Diabetic Retinopathy Analysis by Machine Learning”, IEEE Journal on Biomedical and Health Informatics, vol.18, no.5, pp.1717-1728, Sept. 2014. [Journal Cover]

[J2] S. Roychowdhury, C. Scoglio, W. Hsu. "Mitigation Strategies for Foot and Mouth Disease: A Learning-based Approach", International Journal of Artificial Life Research (IJALR), 2(2), 42-76, 2011 .

[J1] C. Scoglio, W. Schumm, P. Schumm, T. Easton, S. Roychowdhury, A. Sydney, M.Youssef. "Efficient mitigation strategies for epidemics in rural regions", PLoS ONE 5(7): e11569. doi:10.1371/journal.pone.0011569, 2010.

Book Chapters

[B1] S. Roychowdhury, D.D. Koozekanani, Michael Reinsbach, K.K. Parhi. “Automated OCT Segmentation for Images with DME”, CRC Press. January 2016 (Accepted).

Conference Proceedings

[C32] P. Hage, S. Roychowdhury. “An Azure Hosted POC Application for Pallor Screening”, IEEE International Conference on Biomedical Health Informatics, 2017. (Accepted)

[C31] S. Roychowdhury, D. Sun, M. Bihis, J. Ren, P. Hage, H. Rahman. “Screening Pallor Site Images for Anemia-like Pathologies”, IEEE International Conference on Biomedical Health Informatics, 2017. (Accepted)

[C30] M. Naeemi, J. Ren, N. Holcroft, A. Alessio, S. Roychowdhury. “Application of Big Data Analytics for Automated Estimation of CT Image Quality”, IEEE Big Data, December 2016. Washington DC. (Accepted)

[C29] S. Roychowdhury, J. Ren. “Non-deep CNN for Multi-Modal Image Classification and Feature Learning: An Azure-based Model” IEEE Big Data, December 2016. Washington DC. (Accepted)

[C28] M. Menenberg, S. Pathak, S. Gavirneni, S. Roychowdhury. “Topic Modeling for Management Sciences: A Network-based Approach”, IEEE Big Data 2016. Washington DC. (Accepted).

[C27] M. Naeemi, A. Alessio, S. Roychowdhury. “Automated Selection of Uniform Regions for CT Image Denoising”, IEEE Asilomar Signals Systems and Computers 2016. (Accepted).

[C26] S. Roychowdhury, D.D. Koozekanani, K.K. Parhi, “Automated Detection of Neovascularization for Proliferative Diabetic Retinopathy Screening”, IEEE 38th International Conference of Engineering in Medicine and Biology, 2016. (Accepted)

[C25] V. Vijayakumar, D. Koozakanani, S. Roychowdhury, K. K. Parhi. "Artery/Vein Classification of Retinal Blood Vessels using feature Selection”, IEEE 38th International Conference of Engineering in Medicine and Biology, Orlando, FL, 2016, pp. 1320-1323.

[C24] S. Roychowdhury, “Classification of Large-Scale Fundus Image Data Sets: A Cloud-Computing Framework”, IEEE 38th International Conference of Engineering in Medicine and Biology, (EMBC), Orlando, FL, 2016, pp. 3256-3259.

[C23] N. Sengar, M. K. Dutta, M. Parthasarathi, S. Roychowdhury, "Fast Localization of the Optic Disc in Fundus Images using Region-based Segmentation", IEEE International Conference on Signal Processing and Integrated Networks (SPIN), Noida, 2016, pp. 529-532.

[C22] S. Pathak, S. Gavirneni, E. Bendoly, H. Prasad, S. Roychowdhury."Evolution or Revolution? Sixty Years of Change in Management Science", 2015 Annual Meeting of Decision Sciences Institute. Seattle. November 2015.

[C21] M. Bihis, S. Roychowdhury. "A Generalized Flow for Multi-class and Binary Classification Tasks: An Azure ML Approach", 2015 IEEE International Conference on Big Data, Third Scalable Cloud Data Workshop. Santa Clara. Oct 2015.

[C20] S. Roychowdhury, N. Hollcraft, A. Alessio. "Blind Analysis of CT Image Noise Using Residual Denoised Images", 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference. San Diego. November 2015.

[C19] S. Roychowdhury. “Facial Expression Detection using Patch-based Eigen-face Isomap Networks", IJCAI-HINA 2015 : 3rd IJCAI Workshop on Heterogeneous Information Network Analysis. Argentina. July 2015.

[C18] S. Roychowdhury, D.D. Koozekanani, Michael Reinsbach, K.K. Parhi. “3-D Localization of Diabetic Macular Edema using OCTThickness Maps”, IEEE 37th International Conference of Engineering in Medicine and Biology. Italy. August 2015.

[C17] S. Roychowdhury, K.K. Parhi, M. Reinsbach, D.D. Koozekanani, “Automated Intra-Retinal Layer Thickness Profile Analysis in Optical Coherence Tomography Images by Iterative High-Pass Filtering”, Association for Research in Vision and Opthalmology (ARVO) annual meeting, Orlando, 4797 (B0173), May 2014.

[C16] S. Roychowdhury, D.D. Koozekanani, K.K. Parhi, “Automated Denoising and Segmentation of Optical Coherence Tomography images”, IEEE Asilomar Conference on Signals, Systems, and Computers, pp-258-262, 3-6 Nov. 2013

[C15] S. Roychowdhury, D.D. Koozekanani, S. Radwan, K.K. Parhi, “Automated Localization of Cysts In Diabetic Macular Edema using Optical Coherence Tomography Images”, IEEE 35th International Conference of Engineering in Medicine and Biology, pp.1426-1429, July 2013.

[C14] S. Radwan, S. Roychowdhury, K.K. Parhi, D.D. Koozekanani, “Optical Coherence Tomography Predictors of Visual Outcome inMacular Edema”, Association for Research in Vision and Opthalmology (ARVO) annual meeting, Seattle, 256 (D0101), May 2013.

[C13] S. Roychowdhury, D.D. Koozekanani, S. Radwan, K.K. Parhi, “Automated Detection and Location Analysis of Diabetic Cystsin Retinal OCT Images: An Iterative Filtering Approach”, Association for Research in Vision and Opthalmology (ARVO) annual meeting, Seattle, 4901(D0340), May 2013.

[C12] S. Roychowdhury, K.K. Parhi, M.G. Lawrence, and D.D. Koozekanani, "Automated Screening System for Detecting DiabeticRetinopathy: A Classification Approach", Association for Research in Vision and Opthalmology (ARVO) annual meeting, Fort Lauderdale, 4070 (D1158), May 2012.

[C11] S. Roychowdhury, D.D. Koozekanani, K.K. Parhi, “Screening Fundus Images for Diabetic R etinopathy”, IEEE Asilomar Conference on Signals, Systems, and Computers, pp.1641-1645, 4-7 Nov. 2012. [Best Student Paper]

[C10] V. Cherkassky, S. Roychowdhury,V. Landenberger, S. Tewari and P. Bursch. “Prediction of Electric Power Consumption forCommercial Buildings”, IEEE International Joint Conference on Neural Networks, pp: 666-672, July 31 2011-Aug. 5 2011.

[C9] S. Roychowdhury, S. Das, C. Scoglio, S. Das, B. Panigrahi, S. Pattnaik. "Mitigation strategies in epidemics: evolutionary optimizationusing a hierarchy of objective functions”, Proceedings of GECCO 2010: 1325-1326, 2010.

[C8] S. Roychowdhury, C. Scoglio, W. Hsu "Simulative Modeling to Control the Foot and Mouth Disease Epidemic", Proceedings of 10th International Conference on Computational Science, Amsterdam, Netherlands, Procedia CS 1(1): 2261-2270, 2010.

[C7] S. Roychowdhury, C. Scoglio, W. Hsu. "Evolution and Control Strategies of the Foot and Mouth Disease Epidemic on a Weighted Contact Network", Proceedings of EPIDEMICS2, Elsevier, Second International Conference on Infectious Diseases Dynamics, Abstract: P2.07, December 2-4, 2009.

[C6] S. Roychowdhury, C. Scoglio, W. Hsu. “Temporal Prediction on the Virulence of H1N1 in the USA”, Proceedings of EPIDEMICS2, Elsevier, Second International Conference on Infectious Diseases Dynamics, Abstract: P1.75, December 2-4, 2009.

[C5] S. Das, S. Roychowdhury, B.K. Panigrahi, S. Pattnaik, "Multi-objective optimization with uncertainty: Probabilistic and fuzzyapproaches," World Congress on Nature & Biologically Inspired Computing, 2009. NaBIC 2009, vol., no., pp.1287-1290, 9-11 Dec. 2009.

[C4] S. Roychowdhury, R. Agarwal, S. Kumar, “Analysis of Energy Efficiency of Non-Persistent CSMA when more than two Nodes collide and its comparison with p-persistent CSMA”, [IEEE Students Paper Contest Finalist] (AISPC 2007), January 2007.

[C3] S. Roychowdhury, “Power Dissipation analysis in a VLSI chip”, OSMOSIS 2006, by “Mindtree Consulting Company”. December 14, 2006. [Best Student Paper].

[C2] S. Roychowdhury, R. Agarwal, S. Kumar et al, “Comparative Analysis of Non-persistent and p-Persistent CSMA”, Proceedings of IEEE International Symposium on Wireless Personal Multimedia Communication (WPMC), pp: 220-225. December, 2007.

[C1] S. Roychowdhury, R. Agarwal, S. Kumar et al, “Analysis of Energy Efficiency of a Non-Persistent CSMA for Multiple Collisions and itsComparison with P-Persistent CSMA” Proceedings of the Second IEEE International Conference on Wireless Communication and Sensor Networks, pp 130-136, December 2006.

Invention Disclosures

[P2] S. Roychowdhury, and K.K. Parhi, "Method and Apparatus to Locate the Optic Disc in Fundus Images," U.S. Provisional Application No. 61/853,659, filed on April 10, 2013.

[P1] S. Roychowdhury, K.K. Parhi, and Dara D. Koozekanani, "Method and Apparatus to Detect Lesions of Diabetic Retinopathy in Fundus Images," U.S. Provisional Application No. 61/854,034, filed on April 17, 2013.

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