Search Results for author: Adrian Celaya

Found 7 papers, 4 papers with code

Solutions to Elliptic and Parabolic Problems via Finite Difference Based Unsupervised Small Linear Convolutional Neural Networks

1 code implementation1 Nov 2023 Adrian Celaya, Keegan Kirk, David Fuentes, Beatrice Riviere

In recent years, there has been a growing interest in leveraging deep learning and neural networks to address scientific problems, particularly in solving partial differential equations (PDEs).

Joint inversion of Time-Lapse Surface Gravity and Seismic Data for Monitoring of 3D CO$_2$ Plumes via Deep Learning

no code implementations24 Sep 2023 Adrian Celaya, Mauricio Araya-Polo

We introduce a fully 3D, deep learning-based approach for the joint inversion of time-lapse surface gravity and seismic data for reconstructing subsurface density and velocity models.

A Generalized Surface Loss for Reducing the Hausdorff Distance in Medical Imaging Segmentation

1 code implementation8 Feb 2023 Adrian Celaya, Beatrice Riviere, David Fuentes

Within medical imaging segmentation, the Dice coefficient and Hausdorff-based metrics are standard measures of success for deep learning models.

Image Segmentation Medical Image Segmentation +2

Inversion of Time-Lapse Surface Gravity Data for Detection of 3D CO$_2$ Plumes via Deep Learning

no code implementations6 Sep 2022 Adrian Celaya, Bertrand Denel, Yen Sun, Mauricio Araya-Polo, Antony Price

We introduce three algorithms that invert simulated gravity data to 3D subsurface rock/flow properties.

Correlation between image quality metrics of magnetic resonance images and the neural network segmentation accuracy

no code implementations1 Nov 2021 Rajarajeswari Muthusivarajan, Adrian Celaya, Joshua P. Yung, Satish Viswanath, Daniel S. Marcus, Caroline Chung, David Fuentes

Deep neural networks with multilevel connections process input data in complex ways to learn the information. A networks learning efficiency depends not only on the complex neural network architecture but also on the input training images. Medical image segmentation with deep neural networks for skull stripping or tumor segmentation from magnetic resonance images enables learning both global and local features of the images. Though medical images are collected in a controlled environment, there may be artifacts or equipment based variance that cause inherent bias in the input set. In this study, we investigated the correlation between the image quality metrics of MR images with the neural network segmentation accuracy. For that we have used the 3D DenseNet architecture and let the network trained on the same input but applying different methodologies to select the training data set based on the IQM values. The difference in the segmentation accuracy between models based on the random training inputs with IQM based training inputs shed light on the role of image quality metrics on segmentation accuracy. By running the image quality metrics to choose the training inputs, further we may tune the learning efficiency of the network and the segmentation accuracy.

Image Segmentation Segmentation +2

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