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We present a fully non neural learning framework based on Graph Laplacian Wavelet Transforms (GLWT). Unlike traditional architectures that rely on convolutional, recurrent, or attention based neural networks, our model operates purely in…

Machine Learning · Computer Science 2025-07-30 Andrew Kiruluta , Andreas Lemos , Priscilla Burity

Parallel MRI is a fast imaging technique that enables the acquisition of highly resolved images in space. It relies on $k$-space undersampling and multiple receiver coils with complementary sensitivity profiles in order to reconstruct a…

An advanced emotion classification model was developed using a CNN-Transformer architecture for emotion recognition from EEG brain wave signals, effectively distinguishing among three emotional states, positive, neutral and negative. The…

Signal Processing · Electrical Eng. & Systems 2025-11-21 Roman Dolgopolyi , Antonis Chatzipanagiotou

Deep convolutional neural networks (CNNs) are used for image denoising via automatically mining accurate structure information. However, most of existing CNNs depend on enlarging depth of designed networks to obtain better denoising…

Image and Video Processing · Electrical Eng. & Systems 2022-10-04 Chunwei Tian , Menghua Zheng , Wangmeng Zuo , Bob Zhang , Yanning Zhang , David Zhang

Linear block transform coding remains a fundamental component of image and video compression. Although the Discrete Cosine Transform (DCT) is widely employed in all current compression standards, its sub-optimality has sparked ongoing…

Image and Video Processing · Electrical Eng. & Systems 2024-11-28 Alessandro Gnutti , Chia-Hao Kao , Wen-Hsiao Peng , Riccardo Leonardi

A Deep Belief Network (DBN) requires large, multiple hidden layers with high number of hidden units to learn good features from the raw pixels of large images. This implies more training time as well as computational complexity. By…

Computer Vision and Pattern Recognition · Computer Science 2015-11-20 Saurabh Sihag , Pranab Kumar Dutta

Many current works directly adopt multi-rate depth-wise dilated convolutions to capture multi-scale contextual information simultaneously from one input feature map, thus improving the feature extraction efficiency for real-time semantic…

Computer Vision and Pattern Recognition · Computer Science 2023-09-14 Haoran Wei , Xu Liu , Shouchun Xu , Zhongjian Dai , Yaping Dai , Xiangyang Xu

Accurate segmentation of retinal vessels is a basic step in Diabetic retinopathy(DR) detection. Most methods based on deep convolutional neural network (DCNN) have small receptive fields, and hence they are unable to capture global context…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Yun Jiang , Ning Tan , Tingting Peng , Hai Zhang

Objective: The use of deep learning for electroencephalography (EEG) classification tasks has been rapidly growing in the last years, yet its application has been limited by the relatively small size of EEG datasets. Data augmentation,…

Machine Learning · Computer Science 2022-11-16 Cédric Rommel , Joseph Paillard , Thomas Moreau , Alexandre Gramfort

Compressive sensing is an impressive approach for fast MRI. It aims at reconstructing MR image using only a few under-sampled data in k-space, enhancing the efficiency of the data acquisition. In this study, we propose to learn priors based…

Image and Video Processing · Electrical Eng. & Systems 2019-09-05 Siyuan Wang , Junjie Lv , Yuanyuan Hu , Dong Liang , Minghui Zhang , Qiegen Liu

This letter presents a novel hybrid method that leverages deep learning to exploit the multi-resolution analysis capability of the wavelets, in order to denoise a photoplethysmography (PPG) signal. Under the proposed method, a noisy PPG…

Information Theory · Computer Science 2023-01-18 Rabia Ahmed , Ahsan Mehmood , Muhammad Mahboob Ur Rahman , Octavia A. Dobre

Motor imagery electroencephalogram (EEG)-based brain-computer interfaces (BCIs) offer significant advantages for individuals with restricted limb mobility. However, challenges such as low signal-to-noise ratio and limited spatial resolution…

Human-Computer Interaction · Computer Science 2024-06-21 Xicheng Lou , Xinwei Li , Hongying Meng , Jun Hu , Meili Xu , Yue Zhao , Jiazhang Yang , Zhangyong Li

The notion of a Brain-Computer Interface system is the acquisition of signals from the brain, processing them, and translating them into commands. The study concentrated on a specific sort of brain signal known as Motor Imagery EEG signals,…

Neurons and Cognition · Quantitative Biology 2023-08-22 Vimal W , Akshansh Gupta

Image Representation learning via input reconstruction is a common technique in machine learning for generating representations that can be effectively utilized by arbitrary downstream tasks. A well-established approach is using…

Neural and Evolutionary Computing · Computer Science 2025-06-10 Raoof HojatJalali , Edmondo Trentin

Electrocardiogram (ECG) signals are frequently corrupted by noise, such as baseline wander (BW), muscle artifacts (MA), and electrode motion (EM), which significantly degrade their diagnostic utility. To address this issue, we propose…

Signal Processing · Electrical Eng. & Systems 2025-05-12 Sainan xiao , Wangdong Yang , Buwen Cao , Jintao Wu

Electroencephalogram (EEG) signals play a pivotal role in clinical medicine, brain research, and neurological disease studies. However, susceptibility to various physiological and environmental artifacts introduces noise in recorded EEG…

Signal Processing · Electrical Eng. & Systems 2024-05-24 Bin Wang , Fei Deng , Peifan Jiang

Theta oscillations, ranging from 4-8 Hz, play a significant role in spatial learning and memory functions during navigation tasks. Frontal theta oscillations are thought to play an important role in spatial navigation and memory.…

Quantitative Methods · Quantitative Biology 2023-11-15 Gabriel Rodrigues Palma , Conor Thornberry , Seán Commins , Rafael de Andrade Moral

Image fusion plays a vital role in medical imaging. Image fusion aims to integrate complementary as well as redundant information from multiple modalities into a single fused image without distortion or loss of information. In this research…

Computer Vision and Pattern Recognition · Computer Science 2020-09-24 S. Kavitha , K. K. Thyagharajan

Multi-exposure correction technology is essential for restoring images affected by insufficient or excessive lighting, enhancing the visual experience by improving brightness, contrast, and detail richness. However, current multi-exposure…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Ming Zhao , Pingping Liu , Tongshun Zhang , Zhe Zhang

Electroencephalogram (EEG) has shown a useful approach to produce a brain-computer interface (BCI). One-dimensional (1-D) EEG signal is yet easily disturbed by certain artifacts (a.k.a. noise) due to the high temporal resolution. Thus, it…

Signal Processing · Electrical Eng. & Systems 2025-04-03 Peng Yi , Kecheng Chen , Zhaoqi Ma , Di Zhao , Xiaorong Pu , Yazhou Ren