Search Results for author: Soumya Gupta

Found 6 papers, 0 papers with code

Patch-level instance-group discrimination with pretext-invariant learning for colitis scoring

no code implementations11 Jul 2022 Ziang Xu, Sharib Ali, Soumya Gupta, Simon Leedham, James E East, Jens Rittscher

Inflammatory bowel disease (IBD), in particular ulcerative colitis (UC), is graded by endoscopists and this assessment is the basis for risk stratification and therapy monitoring.

Representation Learning Self-Supervised Learning

EndoUDA: A modality independent segmentation approach for endoscopy imaging

no code implementations12 Jul 2021 Numan Celik, Sharib Ali, Soumya Gupta, Barbara Braden, Jens Rittscher

While, today most segmentation approaches are supervised and only concentrated on a single modality dataset, this work exploits to use a target-independent unsupervised domain adaptation (UDA) technique that is capable to generalize to an unseen target modality.

Segmentation Unsupervised Domain Adaptation

Sub-MeV spectroscopy with AstroSat-CZT Imager for Gamma Ray Bursts

no code implementations26 Feb 2021 Tanmoy Chattopadhyay, Soumya Gupta, Vidushi Sharma, Shabnam Iyyani, Ajay Ratheesh, N. P. S. Mithun, E. Aarthy, Sourav Palit, Abhay Kumar, Santosh V Vadawale, A. R. Rao, Varun Bhalerao, Dipankar Bhattacharya

While the 2-pixel Compton scattered events (100 - 300 keV) are used to extract sensitive spectroscopic information, the inclusion of the low-gain pixels (around 20% of the detector plane) after careful calibration extends the energy range of Compton energy spectra to 600 keV.

High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics

Exploring Sub-MeV Sensitivity of AstroSat-CZTI for ON-axis Bright Sources

no code implementations26 Feb 2021 Abhay Kumar, Tanmoy Chattopadhyay, Santosh V Vadawale, A. R. Rao, Soumya Gupta, Mithun N. P. S., Varun Bhalerao, Dipankar Bhattacharya

Here we explore the possibility of using the Compton events as well as the low gain pixels to extend the spectroscopic energy range of CZTI for ON-axis bright X-ray sources.

Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena

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