Position and Education

• 2013-present Assistant Professor at Silpakorn University, Thailand.
• 2010-2013 Lecturer at Silpakorn University, Thailand.
• 2006-2010 PhD (Mathematical Sciences) The University of Liverpool, The United Kingdom.
• 2001-2006 Lecturer at Silpakorn University, Thailand.
• 1998-2001 MSc (Mathematics) Silpakorn University, Thailand.
• 1993-1997 BSc (Mathematics) Thaksin University, Thailand.

Academic Activities, Awards and Scholarships

• 2008-present: Active member of Centre for Mathematical Imaging Techniques (CMIT), Department of Mathematical Sciences, The University of Liverpool.
• 2006-present: Active member of Strategic Frontier Research (SFR) network of Thailand.
• 2006-2010: Full PhD Scholarship in Applied Mathematics (Numerical Analysis) under the programme ‘Higher Educational Strategic Scholarships for Frontier Research Networks of Thailand’,Commission on Higher Education, Royal Thai Government.
• 2004-present: Faculty of Science’s Research Fund, Silpakorn University
• 2004-2005: Electromagnetic Modeling of Sounding for a Conductive Sphere Embedded in a Conducting Half-Space
• 2005-2006: Mathematical Modeling of Electromagnetic Response on a Multilayered Earth with a Layer Having Exponentially Varying Conductivity
• 2010-2011: A Fast Iterative Solver for Solving Large Systems Arising from Multiplicative Noise Removal
• 2002: Visiting Researcher at Department of Mathematics and Statistics at Curtin University of Technology, Perth, Australia (supported by Commission on Higher Education, Royal Thai Government).
• 2000: Excellent Student Award in Science and Technology, Graduate School, Silpakorn University.

Specialisation Areas

• Partial Differential Equation (PDE)-Based Variational Models in Image Processing
• Mathematical Modelling and Numerical Methods for Image Registration
• Electromagnetic Modelling for Geophysical Prospecting
• Inverse Problems in Applied Mathematics
• Multigrid Methods for Differential Equations
• Numerical Optimisation

Publications

• S. Thipworawimon, N. Chumchob and P. Noppakeaw, A Fast Time Marching for Higher-Order PDE-Based Image Registration, Proceeding of National and International Graduate Research Conference 2016, pp. 110-116. [http://gsbooks.gs.kku.ac.th/59/ingrc2016/pdf/PMO10.pdf]
• B. Dolwithayakul, C. Chantrapornchai and N. Chumchob, Utilizing the Pipeline Framework and State-Based Nonlinear Gauss-Seidel for Large Satellite Image Denoising based on CPU-GPU Cores, International Journal of Computer Applications in Technology Vol.52 (2015), pp. 262-276. [http://www.inderscience.com/info/inarticle.php?artid=73593]
• S. Jewprasert, N. Chumchob and C. Chantrapornchai, A Fourth-Order Compact Finite Difference Scheme for Higher-Order PDE-Based Image Registration, East Asian Journal on Applied Mathematics Vol.5 (2015), pp. 361-386. [http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=10032623&fileId=S207973621500022X]
• S. Jewprasert and N. Chumchob, A High-Order Compact Finite Difference Method for Diffusion Image Registration, The Proceeding of 53rd Kasetsart University Annual Conference, February 3-6, 2015, pp. 1-9.
• I. Prakit and N. Chumchob, A Multi-Resolution Method for Removing the Multiplicative Noise in Medical Ultrasound Images, The Proceeding of 53rd Kasetsart University Annual Conference, February 3-6, 2015, pp. 10-17.
• B. Dolwithayakul, C. Chantrapornchai, and N. Chumchob, State-Based Gauss-Seidel Framework for Real-time 2D Ultrasound Image Sequence Denoising on GPUs, International Journal of Multimedia and Ubiquitous Engineering, 2014, Vol.9 (2014), pp.29-48. 
• B. Dolwithayakul, C. Chantrapornchai, and N. Chumchob, Real-time video denoising for 2D ultrasound streaming video on GPUs, IEEE-ICSEC (2013), pp. 233-238.
• B. Dolwithayakul, A. Chatkaew, C. Chantrapornchai, and N. Chumchob, An adaptive parallel method for denoising microorganism image from scanning electron microscope, Journal of Advanced Microscopy Research, Vol.8 (2013), pp.171-178.
• Y. Taparak, K. Praditwong, and N. Chumchob, An Improved Genetic Algorithm for Affine Image Registration of Multimodal Medical Images, Proceedings of Annual Pure and Applied Mathematics Conference 2013, pp. 1-9.
• N. Chumchob, Vectorial Total Variation-based Regularization for Variational Image Registration, IEEE Transactions on Image Processing, Vol.22 (2013), pp. 4551-4559.
• B. Dolwithayakul, C. Chantrapornchai and N. Chumchob, Additive and Multiplicative Noise Removal Framework for Large Scale Color Satellite Images on OpenMP and GPUs, Studies in Surveying and Mapping Science, Vol.1 (2013), pp.10-16.
• N. Chumchob, K. Chen and C. Brito-Loeza, A New Variational Model for Removal of Combined Additive and Multiplicative Noise and a Fast Algorithm for Its Numerical Approximation, International Journal of Computer Mathematics, Vol.60 (2013), pp.140-161.
• B. Dolwithayakul, C. Chantrapornchai and N. Chumchob, Two Parallel Strategies for Real-time Spatial Video Denoising for Multi-core Processors, International of Computer Applications, Vol.48 (2012), pp. 28-35.
• N. Chumchob and K. Chen, An Improved Monomodal Image Registration Model and Its Fast Algorithm, Numerical Methods for Partial Differential Equations, Vol.28 (2012), pp. 1966-1995.
• B. Dolwithayakul, C. Chantrapornchai and N. Chumchob, Multi-core framework for parallel satellite image denoising using OpenMP, Proceedings of International Computer Science and Engineering Conference, Chonburi, Thailand, pp. 173-178, October 17-19, 2012.
• B. Dolwithayakul, C. Chantrapornchai and N. Chumchob, Real-time Parallel Spatial Video Denoising Schemes on Multi-cores Processors, IEEE-JCSSE 2012 (2012), pp. 300-305.
• B. Dolwithayakul, C. Chantrapornchai and N. Chumchob, An Efficient Asynchronous Approach for Gauss-Seidel Iterative Solver for FDM/FEM Equations on Multi-core Processors, IEEE-JCSSE (2012), pp. 357-361.
• B. Dolwithayakul, C. Chantrapornchai and N. Chumchob, GPU-based total variation image restoration using Sliding Window Gauss-Seidel algorithm. 2011 IEEE International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS (2011), no. 6146136.
• B. Dolwithayakul, C. Chantrapornchai and N. Chumchob, GPU-Based Weighted-Jacobi Solver for 2D Poisson's Equations with Domain Decomposition, International Annual Symposium on Computational Science and Engineering, ANSCSE 15 (2011), pp. 55-160.
• N. Chumchob and K. Chen, A Robust Multigrid Approach for Variational Image Registration Models, Journal of Computational and Applied Mathematics, Vol.236 (2011), pp. 653-674.
• N. Chumchob, K. Chen, and C. Brito-Loeza, A Fourth Order Variational Image Registration Model and Its Fast Multigrid Algorithm, SIAM Journal Multiscale Modeling and Simulation, Vol.9 (2011), pp. 89-128.
• W. Sripanya, N. Chumchob and S. Yooyuanyong, Regularized Inverse Problem of Magnetic Field from a Layered Earth Structure. Pioneer Journal of Advances in Applied Mathematics, Vol.3 (2011), pp. 91-100.
• P. Pawong, N. Nilsri, N. Chumchob and S. Yooyuanyong, Mathematical Modeling of EM Response from a Circular Disc Embedded in a Uniform Host Medium under an Overburden Having Exponentially Varying Conductivity with Depth, Pioneer Journal of Mathematics and Mathematical Sciences, Vol.4 (2011), pp. 199-212.
• P. Pawong, J. Ruammek, N. Chumchob and S. Yooyuanyong, Mathematical Model of Electromagnetic Response due to a Horizontal Loop Source over a Layered Earth Containing an Inhomogeneous Layer Having Linearly Varying Conductivity with Depth, Journal of Mathematical Sciences: Advances and Applications, Vol.11 (2011), pp. 31-56.
• N. Chumchob and K. Chen, A Variational Approach for Discontinuity-Preserving Image Registration, Contributions in Mathematics and Applications III (ICMA-MU 2009), East-West Journal of Mathematics, a special volume (2010), pp. 266-282.
• N. Chumchob and K. Chen, A Robust Affine Image Registration Method, International Journal of Numerical Analysis and Modeling, Vol.6 (2009), pp. 311-334.
• S. Yooyuanyong and N. Chumchob, Mathematical Modelling of Electromagnetic Sounding for Groundwater, Thai J. Math., Vol.3 (2005), pp. 125-132.
• N. Chumchob, Mathematical Modelling of Electromagnetic Response on a Multilayered Earth with a Layer Having Exponentially Varying Conductivity, Thai J. Math. 2, Vol.2 (2004), pp. 333-358.
• S. Yooyuanyong and N. Chumchob, Mathematical Modeling of Electromagnetic Response from a Conductive Disc Embedded in the Lowermost Layer of a Multi-Layered Earth, Proceedings of The Annual Meeting in Mathematics Khon Kaen 2000, pp. 38-53.
• S. Yooyuanyong and N. Chumchob, Mathematical Modeling of Electromagnetic Sounding for a Conductive 3-D Circular Cylinder Body Embedded in a Half-Space, Proceedings of the Third Asian Mathematical Conference 2000 (Diliman), pp. 590-603, World Sci. Publ., River Edge, NJ, 2002.

Other Publications

• 511 106 Calculus for Biological Scientists I, 2016 [Lect1(slide)][Lect2(note)][Lect3a(note)][Lect3b(note)][Pre-Mid][Lecture Note (Ch4)][Pre-test;27 March 2016][Quiz8Sol; Sol-Pre-test-Final]
  
• 511 583 Numerical Analysis I - Lecture Note [Part 2], 2013
• 511 584 Numerical Analysis II - Lecture Note, 2013
• 519 421 Computational Mathods for Partial Differential Equations - Lecture Note, 2013
• 519 271 Computational Mathematics - Lecture Note, 2013
• 519 371 Numerical Optimization I - Lecture Note (in Thai), 2013
• 519 382 Applied Analysis II - Lecture Note (in Thai) [Part 1-2], 2011
• 511 362 Mathematical Computer Packages - Lecture Note [Part 2], 2011
• 511 481 Applied Mathematics - Lecture Note, 2004
• 511 421 Mathematical Analysis - Lecture Note, 2004
• 511 421 Elementary Topology - Lecture Note (in Thai), 2004
• 511 103 Mathematics for Biological Science Students -Lecture Note (in Thai), 2002

Senior Projects/MSc Theses/PhD Theses at Silpakorn University

• Chamaiporn Chatniticjai and Nitiya Budrawong, An Application of Conjugate Gradient Methods for Affine Image Registration Problems, Senior Project in Applied Mathematics, 2013. 
• Yaowared Khonkhem and Sasiwimon Sriwong, Computation of Hankel Transform using MATLAB, Senior Project in Applied Mathematics, 2012.
• Rudeemas Khanthong and Isararat Prakit, A Multi-resolution Method for Removing the Multiplicative Noise in Ultrasound Images, Senior Project in Applied Mathematics, 2012.
• Sopida Jewprasert, A New Variational Model and Its Fast Numerical Algorithm for Removing a Combination of Additive and Multiplicative Noise, Senior Project in Mathematics, 2011. 
• Kitipong Chankong, A Fast Algorithm for Multiplicative Noise Removal, Senior Project in Applied Mathematics, 2011.
• Siriwan Chankaen, A Fast Numerical Solver for Removing the Multiplicative Noise in Ultrasound Images, Senior Project in Applied Mathematics, 2011.
• Suntree Unhapipat [DPST], The Extended Born Approximation for Drill-Hole Electromagnetic Modeling, Senior Project in Mathematics, 2005. 
• Pawaton Kaemawichanurat [DPST], The Mathematical Model of Electromagnetic Response of an Axially Symmetrical Anomalous Body Embedded in Host Medium, Senior Project in Mathematics, 2005.
• Parinya Khaipotong, The Mathematical Model of Tumors Growth, Senior Project in Mathematics, 2005.
• Noppawan Nilsri, A Mathematical Model of Electromagnetic Response of a Circular Disc Buried under the Overburden Having an Exponentially Varying Conductivity Profile, Senior Project in Mathematics, 2004.
• Jutarat Ruammek, Mathematical Modeling of Electromagnetic Response on a Multilayered Earth with a Layer Having Linearly Varying Conductivity, Senior Project in Mathematics, 2004.
• Somchai Amonbenjarat, The Magnetometric Resistivity Response on a Layered Earth Containing an Inhomogeneous Transition Layer, Senior Project in Mathematics, 2004. 
• Poranee Khongkha, A Mathematical Model of Electromagnetic Response on a Multilayered Earth with Layers Having exponentially Varying Conductivities, Senior Project in Mathematics, 2004.

Extracurricular activities

2007-2008 President of Liverpool Thai Soceity (LTS), The University of Liverpool, The United Kingdom