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The collection and the analysis of kidney stone morphological criteria are essential for an aetiological diagnosis of stone disease. However, in-situ LASER-based fragmentation of urinary stones, which is now the most established chirurgical…

Computer Vision and Pattern Recognition · Computer Science 2022-09-28 Vincent Estrade , Michel Daudon , Emmanuel Richard , Jean-Christophe Bernhard , Franck Bladou , Gregoire Robert , Laurent Facq , Baudouin Denis de Senneville

The objective of this work is to study the applicability of various Machine Learning algorithms for prediction of some rock properties which geoscientists usually define due to special lab analysis. We demonstrate that these special…

Machine Learning · Computer Science 2019-02-19 Andrei Erofeev , Denis Orlov , Alexey Ryzhov , Dmitry Koroteev

Artificial Intelligence (AI) can potentially support histopathologists in the diagnosis of a broad spectrum of cancer types. In colorectal cancer (CRC), AI can alleviate the laborious task of characterization and reporting on resected…

Image and Video Processing · Electrical Eng. & Systems 2023-02-10 John-Melle Bokhorst , Iris D. Nagtegaal , Filippo Fraggetta , Simona Vatrano , Wilma Mesker , Michael Vieth , Jeroen van der Laak , Francesco Ciompi

Upscaling Klinkenberg-corrected gas permeability, k, in unconventional tight sandstones has numerous practical applications, particularly in gas exploration and production. In this study, we adapt the effective-medium approximation (EMA)…

Geophysics · Physics 2019-07-16 Behzad Ghanbarian , Carlos Torres-Verdin , Larry W. Lake , Michael Marder

Local geometrical features of a porous material such as the shape and size of a pore or the curvature of a solid ligament often affect the macroscopic properties of the material, and their characterization is necessary to fully understand…

Materials Science · Physics 2025-02-24 Aditya Vasudevan , Jorge Zorrilla Prieto , Sergei Zorkaltsev , Maciej Haranczyk

Interpreting the mineralogical aspects of rock thin sections is an important task for oil and gas reservoirs evaluation. However, human analysis tend to be subjective and laborious. Technologies like QEMSCAN(R) are designed to automate the…

Predicting microporosity and permeability in clastic reservoirs is a challenge in reservoir quality assessment, especially in formations where direct measurements are difficult or expensive. These reservoir properties are fundamental in…

Geophysics · Physics 2025-03-24 Muhammad Risha , Mohamed Elsaadany , Paul Liu

A new and fast Matlab algorithm for predicting absolute permeability is presented. The developed tool relies on measuring the connectivity of pores in a given three-dimensional (3D) micro-CT rock image. An index of pore connectivity is…

Geophysics · Physics 2019-05-28 H. Sun , H. Al-Marzouqi , S. Vega

Automated image processing algorithms can improve the quality, efficiency, and consistency of classifying the morphology of heterogeneous carbonate rock and can deal with a massive amount of data and images seamlessly. Geoscientists face…

Geophysics · Physics 2022-01-06 Omar Alfarisi , Aikifa Raza , Hongtao Zhang , Djamel Ozzane , Mohamed Sassi , Tiejun Zhang

We propose a novel deep learning framework for predicting permeability of porous media from their digital images. Unlike convolutional neural networks, instead of feeding the whole image volume as inputs to the network, we model the…

Image and Video Processing · Electrical Eng. & Systems 2021-10-13 Ali Kashefi , Tapan Mukerji

We present a fully automated, anatomically guided deep learning pipeline for prostate cancer (PCa) risk stratification using routine MRI. The pipeline integrates three key components: an nnU-Net module for segmenting the prostate gland and…

Monitoring surface cracks in infrastructure is crucial for structural health monitoring. Automatic visual inspection offers an effective solution, especially in hard-to-reach areas. Machine learning approaches have proven their…

Computer Vision and Pattern Recognition · Computer Science 2024-06-12 Florent Forest , Hugo Porta , Devis Tuia , Olga Fink

Recent advances in 3D X-ray Computed Tomographic (CT) sensors have stimulated research efforts to unveil the extremely complex micro-scale processes that control the activity of soil microorganisms. Voxel-based description (up to hundreds…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Olivier Monga , Zakaria Belghali , Mouad Klai , Lucie Druoton , Dominique Michelucci , Valerie Pot

Process refinement to consistently produce high-quality material over a large area of the grown crystal, enabling various applications from optics crystals to quantum detectors, has long been a goal for diamond growth. Machine learning…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Rohan Reddy Mekala , Elias Garratt , Matthias Muehle , Arjun Srinivasan , Adam Porter , Mikael Lindvall

Holistic understanding of multiphase reactive flow mechanisms such as CO$_2$ dissolution, multiphase displacement, and snap-off events are vital for optimisation of large-scale industrial operations like CO$_2$ sequestration, enhanced oil…

Fluid Dynamics · Physics 2021-03-08 Alexandros Patsoukis Dimou , Hannah P. Menke , Julien Maes

A quantitative comparison of the pore space geometry for three natural sandstones is presented. The comparison is based on local porosity theory which provides a geometric characterization of stochastic microstructures. The characterization…

Materials Science · Physics 2015-06-25 B. Biswal , C. Manwart , R. Hilfer

In recent years, convolutional neural networks (CNNs) have experienced an increasing interest in their ability to perform a fast approximation of effective hydrodynamic parameters in porous media research and applications. This paper…

Machine Learning · Computer Science 2022-04-14 Stephan Gärttner , Faruk O. Alpak , Andreas Meier , Nadja Ray , Florian Frank

Permeability is the key parameter for quantifying fluid flow in porous rocks. Knowledge of the spatial distribution of the connected pore space allows, in principle, to predict the permeability of a rock sample. However, limitations in…

Delineation of tumors and organs-at-risk permits detecting and correcting changes in the patients' anatomy throughout the treatment, making it a core step of adaptive proton therapy (APT). Although AI-based auto-contouring technologies have…

For several cancer patients, operative resection with curative intent can end up in early recurrence of the cancer. Current limitations in peri-operative cancer staging and especially intra-operative misidentification of visible metastases…

Image and Video Processing · Electrical Eng. & Systems 2023-06-21 Thomas Schnelldorfer , Janil Castro , Atoussa Goldar-Najafi , Liping Liu