X-ray Imaging
X-Ray Micro-Tomography
Publications/Talks
S. V. Venkatakrishnan, Amir Ziabari, Philip Bingham, Grant Helmreich, “Model-based Reconstruction Algorithms for Enhanced X-ray CT of Tri-structural Isotropic (TRISO) Particles”, Applied Optics, Vol. 61, Issue 6.,C73-C79, 2022
Amirkoushyar Ziabari, Singanallur Venkatakrishnan, Michael Kirka, Paul Brackman, Ryan Dehoff, Philip Bingham, Vincent Paquit, ``Beam Hardening Artifact Reduction in X-Ray CT Reconstruction of 3D Printed Metal Parts Leveraging Deep Learning and Cad Models'', Proceedings of the Int. Conf. of Mechanical Engineering, 2020
Grant W Helmreich, Dylan Richardson, Singanallur Venkatakrishnan, Amir Ziabari, "Method for measurement of TRISO kernel and layer volumes by X-ray computed tomography" Journal of Nuclear Materials 2020 (link)
Amirkoushyar Ziabari, Michael Kirka, Vincent Paquit, Philip Bingham, and Singanallur Venkatakrishnan, “X-Ray CT Reconstruction of Additively Manufactured Parts using 2.5D Deep Learning MBIR”, Microscopy and Microanalysis 2019 (pdf)
Harold S Barnard, Alastair A MacDowell, Dilworth Y Parkinson, Singanallur V Venkatakrishnan, F Panerai, N Mansour, ``Developments in synchrotron x-ray micro-tomography for in-situ materials analysis at the Advanced Light Source'', SPIE Optical Engineering+ Applications, 99671H-99671H-13, 2016
S. V. Venkatakrishnan, K. Aditya Mohan, Keith Beattie, Joaquin Correa, Eli Dart, Jack R. Deslippe, Alexander Hexemer, Harinarayan Krishnan, Alastair A. MacDowell, Stefano Marchesini, Simon J. Patton, Talita Perciano, James A. Sethian, Rune Stromsness, Brian L. Tierney, Craig E. Tull, Daniela Ushizima,and Dilworth Y. Parkinson, "Making Advanced Scientific Algorithms and Big Scientific Data Management More Accessible", IS&T Electronic Imaging, Computational Imaging XIV, Feb. 2016 (pdf)
K. Aditya Mohan, S. V. Venkatakrishnan, John W. Gibbs, E. Begum Gulsoy, Xianghui Xiao, Marc De Graef, Peter W. Voorhees, and Charles A. Bouman, "TIMBIR: A Method for Space-Time Reconstruction from Interlaced Views", (pdf)( software) IEEE Transactions on Computational Imaging, Vol. 1, No.2, 2015
K. Aditya Mohan, S. V. Venkatakrishnan, John W. Gibbs, E. Begum Gulsoy, Xianghui Xiao, Marc De Graef, Peter W. Voorhees, and Charles A. Bouman, "4D Model-Based Iterative Reconstruction from Interlaced Views", (pdf) Proceedings of IEEE ICASSP 2015
K. Aditya Mohan, S. V. Venkatakrishnan, Lawrence F. Drummy, Jeff Simmons, Dilworth Y. Parkinson, and Charles A. Bouman, "Model-Based Iterative Reconstruction for Synchrotron X-Ray Tomography", Proceedings of IEEE ICASSP 2014 (pdf)( software)
Small Angle X-Ray Scattering
Publications/Talks
S.V. Venkatakrishnan, Jeffrey Donatelli, Dinesh Kumar, Abhinav Sarje, SunilK. Sinha, Xiaoye S. Li, Alexander Hexemer, "A Multi-slice Algorithm for Grazing-Incidence Small-Angle X-ray Scattering", Journal of Applied Crytallography 2016 [Cover Article] (pdf)
S. V. Venkatakrishnan, Jeffrey Donatelli, Dinesh Kumar, Abhinav Sarje, Xiaoye Li, Sunil K. Sinha, and Alexander Hexemer ``Efficient GISAXS simulation via Fourier-Slicing'', Grazing-Incidence Small-Angle Scattering Meeting, 2015 (pdf)
Abhinav Sarje, Dinesh Kumar, Singanallur V. Venkatakrishnan, Xiaoye S. Li, Alexander Hexemer, ``Inverse Modeling Nanostructures from X-Ray Scattering Data through Massive Parallelism'', IEEE Super Computing 2015 (pdf)
X-ray Ptycho-Tomography
Publications/Talks
Singanallur V. Venkatakrishnan, Maryam Farmand, Young-Sang Yu, Hasti Majidi, Klaus Van Benthem, Stefano Marchesini, David Shapiro, and Alexander Hexemer, “Robust model-based phase ptycho-tomography” IEEE Signal Processing Letters,Vol. 23, No. 7, July 2016 (pdf) [ICASSP 2017]
David A. Shapiro, Rich Celestre, Peter Denes, Maryam Farmand, John Joseph, A.L.D. Kilcoyne, Stefano Marchesini, Howard Padmore, Singanallur V. Venkatakrishnan, Tony Warwick and Young-Sang Yu, ``Ptychographic Imaging of Nano-Materials at the Advanced Light Source with the Nanosurveyor Instrument'', X-Ray Microscopy Conference 2016 (pdf)