Search Results for author: Anil A. Bharath

Found 20 papers, 9 papers with code

High-Resolution Maps of Left Atrial Displacements and Strains Estimated with 3D CINE MRI and Unsupervised Neural Networks

1 code implementation14 Dec 2023 Christoforos Galazis, Samuel Shepperd, Emma Brouwer, Sandro Queirós, Ebraham Alskaf, Mustafa Anjari, Amedeo Chiribiri, Jack Lee, Anil A. Bharath, Marta Varela

We create maps of LA Displacement Vector Field (DVF) magnitude and LA principal strain values from images of 10 healthy volunteers and 8 patients with cardiovascular disease (CVD).

Unsupervised Image Registration

TMS-Net: A Segmentation Network Coupled With A Run-time Quality Control Method For Robust Cardiac Image Segmentation

1 code implementation21 Dec 2022 Fatmatulzehra Uslu, Anil A. Bharath

Different from previous multi-view networks, TMS-Net has a single encoder and three decoders, leading to better noise robustness, segmentation performance and run-time quality estimation in our experiments on the segmentation of the left atrium on STACOM 2013 and STACOM 2018 challenge datasets.

Image Segmentation Segmentation +1

Estimation of fibre architecture and scar in myocardial tissue using electrograms: an in-silico study

no code implementations6 Dec 2022 Konstantinos Ntagiantas, Eduardo Pignatelli, Nicholas S. Peters, Chris D. Cantwell, Rasheda A. Chowdhury, Anil A. Bharath

We adapt a wavelet-based surrogate testing analysis to confirm that the inferred conductivity distribution is an accurate representation of the ground truth input to the model.

Towards Fast Simulation of Environmental Fluid Mechanics with Multi-Scale Graph Neural Networks

no code implementations5 May 2022 Mario Lino, Stathi Fotiadis, Anil A. Bharath, Chris Cantwell

Numerical simulators are essential tools in the study of natural fluid-systems, but their performance often limits application in practice.

REMuS-GNN: A Rotation-Equivariant Model for Simulating Continuum Dynamics

no code implementations5 May 2022 Mario Lino, Stati Fotiadis, Anil A. Bharath, Chris Cantwell

Numerical simulation is an essential tool in many areas of science and engineering, but its performance often limits application in practice or when used to explore large parameter spaces.

Inductive Bias

Tempera: Spatial Transformer Feature Pyramid Network for Cardiac MRI Segmentation

1 code implementation1 Mar 2022 Christoforos Galazis, Huiyi Wu, Zhuoyu Li, Camille Petri, Anil A. Bharath, Marta Varela

For this task, we propose a new multi-input/output architecture, hybrid 2D/3D geometric spatial TransformEr Multi-Pass fEature pyRAmid (Tempera).

MRI segmentation

Simulating Continuum Mechanics with Multi-Scale Graph Neural Networks

no code implementations9 Jun 2021 Mario Lino, Chris Cantwell, Anil A. Bharath, Stathi Fotiadis

Continuum mechanics simulators, numerically solving one or more partial differential equations, are essential tools in many areas of science and engineering, but their performance often limits application in practice.

Inductive Bias

Comparing recurrent and convolutional neural networks for predicting wave propagation

1 code implementation ICLR Workshop DeepDiffEq 2019 Stathi Fotiadis, Eduardo Pignatelli, Mario Lino Valencia, Chris Cantwell, Amos Storkey, Anil A. Bharath

Dynamical systems can be modelled by partial differential equations and numerical computations are used everywhere in science and engineering.

Approximating the solution to wave propagation using deep neural networks

1 code implementation4 Dec 2018 Wilhelm E. Sorteberg, Stef Garasto, Alison S. Pouplin, Chris D. Cantwell, Anil A. Bharath

In this work, we suggest a neural network capable of understanding a specific physical phenomenon: wave propagation in a two-dimensional medium.

Inverting The Generator Of A Generative Adversarial Network (II)

1 code implementation15 Feb 2018 Antonia Creswell, Anil A. Bharath

Using our proposed inversion technique, we are able to identify which attributes of a dataset a trained GAN is able to model and quantify GAN performance, based on a reconstruction loss.

Generative Adversarial Network Retrieval

Denoising Adversarial Autoencoders: Classifying Skin Lesions Using Limited Labelled Training Data

no code implementations2 Jan 2018 Antonia Creswell, Alison Pouplin, Anil A. Bharath

We propose a novel deep learning model for classifying medical images in the setting where there is a large amount of unlabelled medical data available, but labelled data is in limited supply.

Denoising General Classification

LatentPoison -- Adversarial Attacks On The Latent Space

no code implementations ICLR 2018 Antonia Creswell, Biswa Sengupta, Anil A. Bharath

Robustness and security of machine learning (ML) systems are intertwined, wherein a non-robust ML system (classifiers, regressors, etc.)

General Classification Reinforcement Learning (RL)

Adversarial Information Factorization

1 code implementation ICLR 2019 Antonia Creswell, Yumnah Mohamied, Biswa Sengupta, Anil A. Bharath

We propose a novel generative model architecture designed to learn representations for images that factor out a single attribute from the rest of the representation.

Attribute Facial Attribute Classification +2

LatentPoison - Adversarial Attacks On The Latent Space

1 code implementation8 Nov 2017 Antonia Creswell, Anil A. Bharath, Biswa Sengupta

Robustness and security of machine learning (ML) systems are intertwined, wherein a non-robust ML system (classifiers, regressors, etc.)

General Classification reinforcement-learning +1

Generative Adversarial Networks: An Overview

2 code implementations19 Oct 2017 Antonia Creswell, Tom White, Vincent Dumoulin, Kai Arulkumaran, Biswa Sengupta, Anil A. Bharath

Generative adversarial networks (GANs) provide a way to learn deep representations without extensively annotated training data.

General Classification Image Generation +2

On denoising autoencoders trained to minimise binary cross-entropy

no code implementations28 Aug 2017 Antonia Creswell, Kai Arulkumaran, Anil A. Bharath

When training autoencoders on image data a natural choice of loss function is BCE, since pixel values may be normalised to take values in [0, 1] and the decoder model may be designed to generate samples that take values in (0, 1).

Denoising

Task Specific Adversarial Cost Function

no code implementations27 Sep 2016 Antonia Creswell, Anil A. Bharath

The cost function used to train a generative model should fit the purpose of the model.

One-Shot Learning Retrieval

Appearance-based indoor localization: A comparison of patch descriptor performance

no code implementations11 Mar 2015 Jose Rivera-Rubio, Ioannis Alexiou, Anil A. Bharath

We evaluated different types of image and video frame descriptors that could be used to determine distinctive visual landmarks for localizing a person based on what is seen by a camera that they carry.

Indoor Localization Position +1

Cannot find the paper you are looking for? You can Submit a new open access paper.