Recent Research

  • Development of reconstruction schemes for shape based dynamic tomography
  • Development and tuning of stochastic estimation schemes for tracking
  • Reconstruction analysis for linear and nonlinear tomography algorithms
  • Static and dynamic fluorescence optical and photoacoustic tomographic reconstruction frameworks
  • Reconstruction schemes with the SPn approximation to the radiative transport equation(RTE) for early cancer detection with fluorescence optical tomography
  • RTE-tomography in biomedical tissue imaging and remote sensing
  • Electrical impedance tomography
  • Subsurface microwave tomography

Application areas

  • Early cancer detection
  • Metabolic imaging
  • Remote sensing
  • Landmine detection
  • Battlefield surveillance
  • Tracking and imaging

Papers in Refereed Journals

  1. (pdf) Nishigandha Patil and Naren Naik, "delta-SPN approximation for numerical modeling of directional sources and scattering", JOSA A, Vol. 38 , Issue 11, pp. 1681 - 1695, 2021.
  2. (pdf) Om Prakash Gottam, Naren Naik, Prabodh Kumar Pandey and Sanjay Gambhir, "RBF level-set based fully-nonlinear fluorescence photoacoustic pharmacokinetic tomography", Invere problems in Science and Engineeing, Vol. 29 , Issue 13, pp. 3227 - 3260, October 2021.
  3. (pdf)Rajesh Bhatt, Naren Naik,and Venkatesh K Subramanian, "SSIM Compliant Modeling Framework With Denoising and Deblurring Applications", IEEE transactions on image processing, Vol. 30 , pp. 2611 - 2626, January 2021.
  4. (pdf)Pankaj Singh,Prabodh Pandey, Shivam Shukla, Naren Naik, and Asima Pradhan, "Modelling, Design and Validation of Spatially Resolved Reflectance Based Fiber Optic Probe for Epithelial Precancer Diagnostics", Applied Sciences 2020, 10(24), 8836, December 2020.
  5. (pdf)Prabodh Kumar Pandey, Jampu Bharadwaj, Naren Naik, and Hari Om Aggrawal, "One-step fluorescence photoacoustic tomography with the optical radiative transfer model", JOSA, Vol. 37, Issue 7, pp. 1175-1192, June 2020.
  6. (pdf)Prabodh Kumar Pandey, Omprakash Gottam, Naren Naik, and Asima Pradhan, "Gradient based one-step fluorescence photoacoustic tomography", Applied Optics, Vol. 59, Issue 14, pp. 4357-4366, May 2020.
  7. (pdf)Nishigandha Patil and Naren Naik, "Second-order adjoint sensitivities for fluorescence optical tomography based on the SPN approximation," JOSA A, Vol. 36, Issue 6, pp. 1003-1014, May 2019.
  8. (pdf)Prabodh Kumar Pandey, Omprakash Gottam, Naren Naik, and Asima Pradhan, "Comparative study of one-step and two-step quantitative fluorescence photoacoustic tomography", Applied Optics, OSA, Vol. 58, Issue 12, pp. 3116-3127, April 2019.
  9. (pdf)Omprakash Gottam, Naren Naik, and Sanjay Gambhir, "Parameterized level-set based pharmacokinetic fluorescence optical tomography using the regularized Gauss-Newton filter", Journal of Bio-medical optics, SPIE, March 2019.
  10. (pdf)P. K. Pandey, N. Naik, P. Munshi, and A. Pradhan, "Inherent error estimates for noisy-data discrimination and filter-specification in universal backprojection based photoacoustic tomography", Biomedical Physics & Engineering Express, IOPscience, March 2018.
  11. (pdf) Naren Naik, Nishigandha Patil, Jerry Eriksson and Asima Pradhan,"Fully non-linear SP3 approximation based optical flouroscene tomography",IEEE transactions on medical imaging, Vol. 36, Issue 11, pp.2308-2318, November 2017.
  12. (pdf) M. R. Ananthasayanam,Shyam Mohan M, Naren Naik, R. M. O. Gemson ,"A Heuristic Reference Recursive Recipe for the Menacing problem of Adaptively Tuning the Kalman Filter Statistics.Part-1: formulation and simulation studies",Indian academy of sciences,Sadhana Vol. 41, Issue 12, pp. 1473-1490, December 2016.
  13. (pdf) Shyam Mohan M, Naren Naik, R. M. O. Gemson,M. R. Ananthasayanam,"A Heuristic Reference Recursive Recipe for the Menacing problem of Adaptively Tuning the Kalman Filter Statistics.Part-2, real data studies",Indian academy of sciences,Sadhana Vol. 41, Issue 12, pp. 1491-1507, December 2016.
  14. (pdf) Naren Naik, Rick Beatson, and Jerry Eriksson, "Radial-basis-function level-set-based regularized Gauss-Newton-filter reconstruction scheme for dynamic shape tomography", Applied Optics, Vol. 53, Issue 29, pp. 6872-6884, 10 October 2014. (Also selected into: Virtual Journal for Biomedical Optics, 9(12), Dec 8, 2014, Editors: Andrew Dunn and Anthony Durkin).
  15. (pdf) Naren Naik, R. M. Vasu, and M. R. Ananthasayanam, "Single-resolution and multiresolution extended-Kalman-filter-based reconstruction approaches to optical refraction tomography", Applied Optics, 49(6), 20 February 2010.
  16. (pdf) Naren Naik, Rick Beatson, Jerry Eriksson and Elijah van Houten, "An implicit radial basis function based reconstruction approach to electromagnetic shape-tomography", Inverse Problems, 25(2):025004, February 2009.
  17. (pdf) Naren Naik, Jerry Eriksson, Pieter de Groen and Hichem Sahli,"A nonlinear iterative reconstruction and analysis approach to shape-based approximate electromagnetic tomography", IEEE Trans. Geosc. and Rem. Sens., 46(5):1558-1574, May 2008.
  18. (pdf) Naren Naik, A.Selvarajan, R.M Vasu ,"A new perturbation solution to the scalar wave equation", Journal of the Indian Institute of Science, pp 213-221, Special Issue on Optoelectronics, Vol-76, No.2, March-April 1996.

Refereed conference publications

  1. Bharadwaj Jampu, Prabodh Kumar Pandey, Naren Naik and Nishigandha Patil , "One-step Jacobian based reconstruction scheme for complete electrode modelled impedance acoustic tomography", 43rd PhotonIcs and Electromagnetics Research Symposium, Hangzhou, China, 22nd November, 2021; Web-based online mode.
  2. Omprakash Gottam, Naren Naik, Prabodh Kumar Pandey, and Sanjay Gambhir, "Gradient filter reconstruction approach to fluorescence photoacoustic based pharmacokinetic tomography", European Conference on Biomedical Optics, Munich, Germany, 20-24 June, 2021.
  3. Nishigandha Patil and Naren Naik, "3D fluorescence optical tomography with directed sources using the delta-SP3 approximation", European Conference on Biomedical Optics, Munich, Germany, 20-24 June, 2021.
  4. Omprakash Gottam, Naren Naik, Prabodh Kumar Pandey and Sanjay Gambhir, "RBF level-set based fluorescence photoacoustic pharmacokinetic tomography", Oral presentation for the 2020 OSA Imaging and Applied Optics Congress, Vancouver, British Columbia, Canada; web-based online mode.
  5. Prabodh Kumar Pandey, Naren Naik, Asima Pradhan, "Gradient based, one-step reconstruction for quantitative frequency domain photoacoustic tomography", International Conference on Optics & Electro-Optics 2019 (ICOL-2019), IRDE, Dehradun, India.(Received the Best Paper Award at ICOL-2019).
  6. Nishigandha Patil and Naren Naik, "Full Hessian Based Reconstruction Scheme for SPN-approximated Fluorescence Optical Tomography" to be presented at OSA Imaging and Applied Optics Congress, in Munich, 24-27 June 2019.
  7. (pdf) Nishigandha Patil and Naren Naik, "Tensor-Newton Reconstruction Scheme for Fluorescence Optical Tomography", 41st PhotonIcs and Electromagnetics Research Symposium, in Rome,17-20 June 2019.
  8. (pdf) Omprakash Gottam, Nishigandha Patil, Naren Naik, "Shape based reconstructions for SP3-modeled 3D fluorescence optical tomography" , PHOTONICS-2018, 12-15 Dec 2018, IIT Delhi, India.
  9. Nishigandha Patil, Naren Naik, "Adjoint based Hessian evaluation for SPN modeled optical tomography" , Biomedical imaging and sensing conference(SPIE), 25-27 Apr 2018, Yokohama, Japan.
  10. (pdf) Omprakash Gottam, Naren Naik, Sanjay Gambhir, "Shape based pharmacokinetic fluorescence optical tomography" , Biomedical imaging and sensing conference(SPIE), 25-27 Apr 2018, Yokohama, Japan.
  11. (pdf) Prabodh Kumar Pandey , Omprakash Gottam , Naren Naik, Pankaj Singh , Asima Pradhan," One Step Quantitative Fluorescence Photoacoustic Tomography", 13th International Conference on Fiber Optics and Photonics, 04-08 Dec 2016, I.I.T., Kanpur.
  12. (pdf) Prabodh Kumar Pandey , Naren Naik , Prabhat Munshi , Asima Pradhan," Performance of error estimates on nosiy photo-acoustic data for universal back-projection based photo-acoustic tomography", 13th International Conference on Fiber Optics and Photonics, 04-08 Dec 2016, I.I.T., Kanpur.
  13. Prabodh Kumar Pandey , Naren Naik , Prabhat Munshi , Asima Pradhan," Error estimates for universal back-projection based photo-acoustic tomography", European conference on Bio-medical Optics(SPIE), 22-26 June 2015, Munich, Germany.
  14. Nishigandha Patil, Naren Naik, Yamini Yadav and Asima Pradhan, "An SP3-approximation based fully non-linear reconstruction scheme for fluorescence optical tomography", Photonics 2014 (12th International Conference on Fiber Optics and Photonics), 13-16 Dec 2014, I. I. T., Kharagpur.
  15. (pdf) Mukesh Kumar Singh, Govind Sharma, Naren Naik, "Joint optimization of SINR and power allocation to relays in cluster-based wireless sensor networks", SPCOM 2014, 22-25 July 2014, I. I. Sc., Bangalore.
  16. (pdf) Ashish Vyas, Rishabh Maheshwari, Pradeep Kumar, and Naren Naik, "Dual antenna array for radiolocation of RCIED trigger", NCC-2014, I.I.T., Kanpur.
  17. (pdf) Ashwin Yadav, Naren Naik, M.R. Ananthasayanam, Abhinav Gaur and Y.N. Singh, "A constant gain Kalman filter approach to target tracking in wireless sensor networks", IEEE 7th Intl. Conf. industrial and information systems, 6-9 Aug 2012, I.I.T., Madras, Chennai, India.
  18. (pdf) Naren Naik, Jerry Eriksson and Hichem Sahli, "An analysis of a Tikhonov regularized Gauss-Newton reconstruction approach to GPR tomography", pp 67-70, Proceedings of the Tenth International Conference on Ground Penetrating Radar, Delft, The Netherlands, 21-24 June, 2004.
  19. (pdf) Edgard Nyssen, Naren Naik, and Bart Truyen, "Piecewise multilinear PDF modelling, using an ML approach", pp 752-760, Structural, Syntactic, and Statistical Pattern Recognition, Eds., Terry Caelli etal., Proceedings of the Joint IAPR International Workshops SSPR 2002 and SPR 2002, Windsor, Ontario, Canada, August 6-9, 2002, Springer Verlag 2002.
  20. Naren Naik and R.M Vasu ,"A wavelet based multiresolution extended Kalman filter approach to the reconstruction problem of curved ray optical tomography", pp 156-165, High-Speed Imaging and Sequence Analysis, Eds. Alan M. Frank, James S Walton, Proc. of SPIE Vol. 3642, 1999.
  21. Naren Naik, T.Srinivas, and R.M Vasu , "Application of a perturbation solution to the scalar wave equation to the analysis of longitudinally varying optical waveguides", pp 513-516, Vol.2, Proceedings of the International Conference on Fiber Optics and Photonics, New Delhi, India, Dec 14-18, 1998.
  22. Naren Naik and R.M Vasu ,"An extended Kalman filter based reconstruction approach to curved ray optical tomography", pp 860-864, Vol.2, Proceedings of the International Conference on Optics and Optoelectronics, Dehradun, India, Dec 9-12, 1998.(Also selected for Proc. SPIE 3729, Selected Papers from International Conference on Optics and Optoelectronics '98, 153 (April 29, 1999); doi:10.1117/12.346775;http://dx.doi.org/10.1117/12.346775 ).
  23. Naren Naik and A.Selvarajan, "A perturbation series solution to the scalar wave equation", pp 325-328, Proc. of the Conference on Emerging Optoelectronic Technologies, Indian Institute of Science, Bangalore, India , July 18-22 , 1994.

Full length refereed publications

  1. Nishigandha Patil and Naren Naik, "Tensor-Newton reconstruction scheme for fluorescence optical tomography", pp 2857-2866, 41st PhotonIcs and Electromagnetics Research Symposium, in Rome,17-20 June 2019.
  2. Edgard Nyssen, Naren Naik, and Bart Truyen, "Piecewise multilinear PDF modelling, using an ML approac", pp 752-760, Structural, Syntactic, and Statistical Pattern Recognition, Eds., Terry Caelli etal., Proceedings of the Joint IAPR International Workshops SSPR 2002 and SPR 2002, Windsor, Ontario, Canada, August 6-9, 2002, Springer Verlag 2002.
  3. Naren Naik and R.M Vasu, "A wavelet based multiresolution extended Kalman filter approach to the reconstruction problem of curved ray optical tomography", pp 156-165, High-Speed Imaging and Sequence Analysis, Eds. Alan M. Frank, James S Walton, Proc. of SPIE Vol. 3642, 1999.

Book Chapters

  1. Nishigandha Patil, Pankaj Singh, Naren Naik, and Asima Pradhan,"Fluorescence Optical Tomography for Cancer Detection", pp19-30,Selected Topics in Photonics, Eds. Asima Pradhan and Pradeep Kumar Krishnamurthy, Springer 2017.

Short papers/abstracts

  1. Jampu Bharani Bharadwaj , Naren Naik ," Numerical Feasibility study for electrial impedance tomorgraphy based fixated-bone imaging",38th Progress in Electromagnetics Research Symposium(PIERS),22-25 May 2017,St.Petersburg,Russia.
  2. Naren Naik "Level-set based explicit and implicit reconstruction approaches to electromagnetic shape tomography", Invited for special session on advances in model based inversion, 2011 IEEE AP-S International Symposium on Antennas and Propagation and 2011 USNC/URSI National Radio Science Meeting (AP-S/URSI 2011), July 3-8 2011, Spokane, Washington, USA.
  3. Naren Naik and Jerry Eriksson, "A Hessian based numerical convergence analysis of a dual-grid Tikhonov regularized Gauss-Newton reconstruction approach to electromagnetic tomography", PIERS 2011, Mar 23-28, Marrakesh, Morocco. (PIERS: Progress in Electromagnetics Research).
  4. Naren Naik, Rick Beatson, Jerry Eriksson and Elijah van Houten, "An implicit radial basis function based reconstruction approach to electromagnetic shape-tomography", pp 132-133, Proceedings of the Fourth International Conference on Inverse Problems: Modelling and Simulation(IPMS), May 26-30, 2008, Fethiye-TURKEY.
  5. M.D.J. McGarry, N. Naik, E.E.W. van Houten, "Reconstructing spatially varying Rayleigh damping parameters in full-field elastography using the adjoint residual", pp 54, Sixth International Conference on the Ultrasonic Measurement and Imaging of Tissue Elasticity, Santa Fe, New Mexico, USA, November 2-5, 2007.

Technical/Project Reports

  1. Shyam Mohan M, Naren Naik, R.M.O. Gemson, M.R. Ananthasayanam, "Introduction to the Kalman filter and tuning its statistics for near optimal estimates and Cramer Rao bound", Technical report(Dept. of Electrical Engineering, IIT Kanpur, India);(TR/EE2015/401; arXiv:1503.04313 [stat.ME]).

Reviewer for

    Inverse Problems, Measurement Science and Technology, Inverse Problems in Science and Engineering ,Journal of Electronic Imaging, Applied Numerical Mathematics, IEEE Transactions on Geoscience and Remote Sensing , IEEE transactions for biomedical imaging, Mathematics and Computers in Simulation, Sadhna.

Short courses and tutorials

  1. Course-coordinator for QIP short term course at IIT-Kanpur on "Introduction to computational tomographic imaging", 20-24 Jan 2020.
  2. Reconstruction algorithms for optical and electrical-impedance tomography, Set of 3 lectures atthe Department of Medical Electronics, Institute for Nondestructive Testing, National Research Tomsk Polytechnic University, Tomsk, Russia; 24-27 Oct 2017.
  3. Optical tomographic reconstructions for tissue imaging, Tutorial delivered at PHOTONICS 2016, I.I.T.,Kanpur, 4 Dec 2016.

Recent Invited Lectures

  1. Course-coordinator for QIP short term course at IIT-Kanpur on "Introduction to computational tomographic imaging", 20-24 Jan 2020.
  2. Fluorescence optical tomography: Reconstruction frameworks, invited talk at the 1-day workshop on optical imaging in honour of Prof Rajan Kanhirodan at the Indian Institute of Science, Bangalore; 29 July 2019
  3. Fluorescence optical tomography: Recent directions and results, at NIT-Rourkela, March 30, 2019.
  4. Fluorescence optical tomography, Invited talk at the 2nd International Symposium on "Advanced Studies in the field of Chemistry and Biomedicine", 4-8 June 2018, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, Russia.
  5. Fluorescence optical tomography, colloquium given at the TIFR, Bengaluru, Mar 13, 2018.
  6. Reconstruction algorithms for optical and electrical-impedance tomography, Set of 3 lectures at the Department of Medical Electronics, Institute for Nondestructive Testing, National Research Tomsk Polytechnic University, Tomsk, Russia; 24-27 Oct 2017.
  7. Optical tomographic reconstructions for tissue imaging,tutorial delivered at PHOTONICS 2016,I.I.T.,Kanpur, 4 Dec 2016.
  8. Computerized Tomography(CT):linear and non-linear tomographic reconstructions,at the Workshop on Medical Imaging:Techniques and Clinical Applications(WMITCA),I.I.T.,Kanpur, 22 Feb 2016.
  9. Basics of Kalman filters and its tuning issues, at the Military College of Electronics and Mechanical Engineering, Secunderabad, 27 Aug 2013.
  10. A Hessian based reconstruction analysis of a Tikhonov regularized Gauss-Newton approach to subsurface electromagnetic tomography, at the Supercomputer Education and Research Center, Indian Institute of Science, Bangalore, Dec 2013.