Search Results for author: Mujdat Cetin

Found 18 papers, 1 papers with code

Robust EEG-based Emotion Recognition Using an Inception and Two-sided Perturbation Model

no code implementations21 Apr 2024 Shadi Sartipi, Mujdat Cetin

Automated emotion recognition using electroencephalogram (EEG) signals has gained substantial attention.

EEG Emotion Recognition

Subject-Independent Deep Architecture for EEG-based Motor Imagery Classification

no code implementations27 Jan 2024 Shadi Sartipi, Mujdat Cetin

Second, a supervised part learns a classifier based on the labeled training samples using the latent features acquired in the unsupervised part.

EEG Motor Imagery

Multi-Source Domain Adaptation with Transformer-based Feature Generation for Subject-Independent EEG-based Emotion Recognition

no code implementations4 Jan 2024 Shadi Sartipi, Mujdat Cetin

Although deep learning-based algorithms have demonstrated excellent performance in automated emotion recognition via electroencephalogram (EEG) signals, variations across brain signal patterns of individuals can diminish the model's effectiveness when applied across different subjects.

Domain Adaptation EEG +2

A Hybrid End-to-End Spatio-Temporal Attention Neural Network with Graph-Smooth Signals for EEG Emotion Recognition

no code implementations6 Jul 2023 Shadi Sartipi, Mastaneh Torkamani-Azar, Mujdat Cetin

Using DEAP as the source dataset, we demonstrate the effectiveness of our model in performing cross-modality TL and improving emotion classification accuracy on DREAMER and the Emotional English Word (EEWD) datasets, which involve EEG-based emotion classification tasks with different stimuli.

EEG EEG Emotion Recognition +2

Uncertainty Quantification for Deep Unrolling-Based Computational Imaging

no code implementations2 Jul 2022 Canberk Ekmekci, Mujdat Cetin

Deep unrolling is an emerging deep learning-based image reconstruction methodology that bridges the gap between model-based and purely deep learning-based image reconstruction methods.

Image Reconstruction Rolling Shutter Correction +1

Combining physics-based modeling and deep learning for ultrasound elastography

no code implementations28 Jul 2021 Narges Mohammadi, Marvin M. Doyley, Mujdat Cetin

Ultrasound elasticity images which enable the visualization of quantitative maps of tissue stiffness can be reconstructed by solving an inverse problem.

Regularization by Adversarial Learning for Ultrasound Elasticity Imaging

no code implementations1 Jun 2021 Narges Mohammadi, Marvin M. Doyley, Mujdat Cetin

In contrast, standard data-driven methods count solely on supervised learning on the training data pairs leading to massive network parameters for unnecessary physical model relearning which might not be consistent with the governing physical models of the imaging system.

Generative Adversarial Network

MR elasticity reconstruction using statistical physical modeling and explicit data-driven denoising regularizer

no code implementations27 May 2021 Narges Mohammadi, Marvin M. Doyley, Mujdat Cetin

Elasticity image, visualizing the quantitative map of tissue stiffness, can be reconstructed by solving an inverse problem.

Denoising

Finite Element Reconstruction Of Stiffness Images In MR Elastography Using Statistical Physical Forward Modeling And Proximal Optimization Methods

1 code implementation26 Mar 2021 Narges Mohammadi, Marvin M. Doyley, Mujdat Cetin

Quantitative characterization of tissue properties, known as elasticity imaging, can be cast as solving an ill-posed inverse problem.

Ultrasound Elasticity Imaging Using Physics-based Models And Learning-based Plug-And-Play Priors

no code implementations25 Mar 2021 Narges Mohammadi, Marvin M. Doyley, Mujdat Cetin

Existing physical model-based imaging methods for ultrasound elasticity reconstruction utilize fixed variational regularizers that may not be appropriate for the application of interest or may not capture complex spatial prior information about the underlying tissues.

Online Graph Learning under Smoothness Priors

no code implementations5 Mar 2021 Seyed Saman Saboksayr, Gonzalo Mateos, Mujdat Cetin

The growing success of graph signal processing (GSP) approaches relies heavily on prior identification of a graph over which network data admit certain regularity.

Graph Learning

Online Discriminative Graph Learning from Multi-Class Smooth Signals

no code implementations1 Jan 2021 Seyed Saman Saboksayr, Gonzalo Mateos, Mujdat Cetin

Graph signal processing (GSP) is a key tool for satisfying the growing demand for information processing over networks.

Graph Learning

Combining nonparametric spatial context priors with nonparametric shape priors for dendritic spine segmentation in 2-photon microscopy images

no code implementations8 Jan 2019 Ertunc Erdil, Ali Ozgur Argunsah, Tolga Tasdizen, Devrim Unay, Mujdat Cetin

Data driven segmentation is an important initial step of shape prior-based segmentation methods since it is assumed that the data term brings a curve to a plausible level so that shape and data terms can then work together to produce better segmentations.

Segmentation

Image Segmentation with Pseudo-marginal MCMC Sampling and Nonparametric Shape Priors

no code implementations3 Sep 2018 Ertunc Erdil, Sinan Yildirim, Tolga Tasdizen, Mujdat Cetin

In this paper, we propose an efficient pseudo-marginal Markov chain Monte Carlo (MCMC) sampling approach to draw samples from posterior shape distributions for image segmentation.

Image Segmentation Semantic Segmentation

Bayesian Nonparametric Models for Synchronous Brain-Computer Interfaces

no code implementations27 Dec 2016 Jaime Fernando Delgado Saa, Mujdat Cetin

In this work, we propose a Bayesian nonparametric model for brain signal classification that does not require "a priori" selection of the number of hidden states and the number of Gaussian mixtures of a HMM.

Brain Computer Interface EEG +1

Dendritic Spine Shape Analysis: A Clustering Perspective

no code implementations19 Jul 2016 Muhammad Usman Ghani, Ertunc Erdil, Sumeyra Demir Kanik, Ali Ozgur Argunsah, Anna Felicity Hobbiss, Inbal Israely, Devrim Unay, Tolga Tasdizen, Mujdat Cetin

We perform cluster analysis on two-photon microscopic images of spines using morphological, shape, and appearance based features and gain insights into the spine shape analysis problem.

Clustering General Classification

Disjunctive Normal Level Set: An Efficient Parametric Implicit Method

no code implementations24 Jun 2016 Fitsum Mesadi, Mujdat Cetin, Tolga Tasdizen

Level set methods are widely used for image segmentation because of their capability to handle topological changes.

Image Segmentation Segmentation +1

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