S
Singanallur Venkatakrishnan
Researcher at Oak Ridge National Laboratory
Publications - 74
Citations - 2101
Singanallur Venkatakrishnan is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Iterative reconstruction & Tomographic reconstruction. The author has an hindex of 15, co-authored 62 publications receiving 1439 citations. Previous affiliations of Singanallur Venkatakrishnan include Lawrence Berkeley National Laboratory & Purdue University.
Papers
More filters
Proceedings ArticleDOI
Plug-and-Play priors for model based reconstruction
TL;DR: This paper demonstrates with some simple examples how Plug-and-Play priors can be used to mix and match a wide variety of existing denoising models with a tomographic forward model, thus greatly expanding the range of possible problem solutions.
Journal ArticleDOI
Plug-and-Play Priors for Bright Field Electron Tomography and Sparse Interpolation
Suhas Sreehari,Singanallur Venkatakrishnan,Brendt Wohlberg,Gregery T. Buzzard,Lawrence F. Drummy,Jeff Simmons,Charles A. Bouman +6 more
TL;DR: This paper presents an algorithm for electron tomographic reconstruction and sparse image interpolation that exploits the nonlocal redundancy in images, and demonstrates that the algorithm produces higher quality reconstructions on both simulated and real electron microscope data, along with improved convergence properties compared to other methods.
Journal ArticleDOI
Plug-and-Play Priors for Bright Field Electron Tomography and Sparse Interpolation
Suhas Sreehari,Singanallur Venkatakrishnan,Brendt Wohlberg,Lawrence F. Drummy,Jeff Simmons,Charles A. Bouman +5 more
TL;DR: In this article, a plug-and-play (P&P) priors approach is proposed to solve the non-local redundancy in images in a regularized inversion setting, which allows a wide array of modern denoising algorithms to be used as a "prior model" for tomography and image interpolation.
Journal ArticleDOI
TIMBIR: A Method for Time-Space Reconstruction From Interlaced Views
K. Aditya Mohan,Singanallur Venkatakrishnan,John W. Gibbs,Emine Begum Gulsoy,Xianghui Xiao,Marc De Graef,Peter W. Voorhees,Charles A. Bouman +7 more
TL;DR: Recon reconstructions of both simulated and real X-ray synchrotron data are presented, which indicate that TIMBIR can improve temporal resolution by an order of magnitude relative to existing approaches.
Journal ArticleDOI
Xi-cam: a versatile interface for data visualization and analysis
Ronald Pandolfi,Daniel B. Allan,Elke Arenholz,Luis Barroso-Luque,Stuart I. Campbell,Thomas A Caswell,Austin Blair,Francesco De Carlo,Sean Fackler,Amanda P. Fournier,Guillaume Freychet,Masafumi Fukuto,Dogˇa Gürsoy,Zhang Jiang,Harinarayan Krishnan,Dinesh Kumar,R. Joseph Kline,Ruipeng Li,Christopher Liman,Stefano Marchesini,Apurva Mehta,Alpha T. N'Diaye,Dilworth Y. Parkinson,Holden Parks,Lenson A Pellouchoud,Talita Perciano,Fang Ren,Shreya Sahoo,Joseph Strzalka,Daniel F. Sunday,Christopher J. Tassone,Daniela Ushizima,Singanallur Venkatakrishnan,Kevin G. Yager,Peter H. Zwart,James A. Sethian,Alexander Hexemer +36 more
TL;DR: The core of Xi-cam is an extensible plugin-based graphical user interface platform which provides users with an interactive interface to processing algorithms, and targets cross-facility and cross-technique collaborative development, in support of multi-modal analysis.