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The work presented here applies deep learning to the task of automated cardiac auscultation, i.e. recognizing abnormalities in heart sounds. We describe an automated heart sound classification algorithm that combines the use of…

声音 · 计算机科学 2017-10-20 Jonathan Rubin , Rui Abreu , Anurag Ganguli , Saigopal Nelaturi , Ion Matei , Kumar Sricharan

In this paper, we use several techniques with conventional vocal feature extraction (MFCC, STFT), along with deep-learning approaches such as CNN, and also context-level analysis, by providing the textual data, and combining different…

音频与语音处理 · 电气工程与系统科学 2019-05-22 Andrew Huang , Puwei Bao

Non-invasive fetal electrocardiogram (FECG) is used to monitor the electrical pulse of the fetal heart. Decomposing the FECG signal from maternal ECG (MECG) is a blind source separation problem, which is hard due to the low amplitude of…

信号处理 · 电气工程与系统科学 2021-02-11 Mohammad Reza Mohebbian , Seyed Shahim Vedaei , Khan A. Wahid , Anh Dinh , Hamid Reza Marateb , Kouhyar Tavakolian

The purpose of this work is to demonstrate a robust and clinically validated method for correcting sound speed aberrations in medical ultrasound. We propose a correction method that calculates focusing delays directly from the observed…

Recent advancements in Automatic Speech Recognition (ASR) systems, exemplified by Whisper, have demonstrated the potential of these systems to approach human-level performance given sufficient data. However, this progress doesn't readily…

音频与语音处理 · 电气工程与系统科学 2024-05-16 Ahmed Adel Attia , Jing Liu , Wei Ai , Dorottya Demszky , Carol Espy-Wilson

Congenital heart disease (CHD) is a critical condition that demands early detection, particularly in infancy and childhood. This study presents a deep learning model designed to detect CHD using phonocardiogram (PCG) signals, with a focus…

The increasing penetration of renewable energy leads to a continuous reduction in system inertia, for which conventional synchronization criteria based solely on frequency consistency can no longer accurately capture the coupled dynamics of…

系统与控制 · 电气工程与系统科学 2025-11-24 Yusen Wei , Lan Tang , Peidong Li

Congenital anomalies arising as a result of a defect in the structure of the heart and great vessels are known as congenital heart diseases or CHDs. A PCG can provide essential details about the mechanical conduction system of the heart and…

Real-time frequency measurement for non-repetitive and statistically rare signals are challenging problems in the electronic measurement area, which places high demands on the bandwidth, sampling rate, data processing and transmission…

信号处理 · 电气工程与系统科学 2023-08-21 Ruiyuan Ming , Peng Ye , Kuojun Yang , Zhixiang Pan , ChenYang Li , Chuang Huang

Matched filters are widely used to localise signal patterns due to their high efficiency and interpretability. However, their effectiveness deteriorates for low signal-to-noise ratio (SNR) signals, such as those recorded on edge devices,…

信号处理 · 电气工程与系统科学 2025-09-01 Haozhe Tian , Qiyu Rao , Nina Moutonnet , Pietro Ferraro , Danilo Mandic

Resting-state functional Magnetic Resonance Imaging (fMRI) is a powerful imaging technique for studying functional development of the brain in utero. However, unpredictable and excessive movement of fetuses has limited clinical application…

The detection of abnormal fetal heartbeats during pregnancy is important for monitoring the health conditions of the fetus. While adult ECG has made several advances in modern medicine, noninvasive fetal electrocardiography (FECG) remains a…

信号处理 · 电气工程与系统科学 2023-02-28 Yu Xuan , Xiangyu Zhang , Shuyue Stella Li , Zihan Shen , Xin Xie , Leibny Paola Garcia , Roberto Togneri

Deep learning-based techniques for automatic dysarthric speech detection have recently attracted interest in the research community. State-of-the-art techniques typically learn neurotypical and dysarthric discriminative representations by…

音频与语音处理 · 电气工程与系统科学 2021-10-04 Ina Kodrasi

Prenatal maternal stress alters maternal-fetal heart rate coupling, as demonstrated by the Fetal Stress Index derived from bivariate phase-rectified signal averaging. Here, we extend this framework using information-theoretical measures to…

Given a time series vector, how can we efficiently compute a specified part of Fourier coefficients? Fast Fourier transform (FFT) is a widely used algorithm that computes the discrete Fourier transform in many machine learning applications.…

机器学习 · 计算机科学 2020-08-31 Yong-chan Park , Jun-Gi Jang , U Kang

We suggest an adaptive sampling rule for obtaining information from noisy signals using wavelet methods. The technique involves increasing the sampling rate when relatively high-frequency terms are incorporated into the wavelet estimator,…

统计理论 · 数学 2007-06-13 Peter Hall , Spiridon Penev

We introduce a new method for estimating the Ideal Time-Frequency Representation (ITFR) of complex nonstationary signals. The Reconstructive Ideal Fractional Transform (RIFT) computes a constellation of Continuous Fractional Wavelet…

音频与语音处理 · 电气工程与系统科学 2026-04-03 James M. Cozens , Simon J. Godsill

Measurement of head biometrics from fetal ultrasonography images is of key importance in monitoring the healthy development of fetuses. However, the accurate measurement of relevant anatomical structures is subject to large inter-observer…

Background: Cardiac resynchronization therapy (CRT) has emerged as an effective treatment for heart failure patients with electrical dyssynchrony. However, accurately predicting which patients will respond to CRT remains a challenge. This…

信号处理 · 电气工程与系统科学 2023-06-05 Zhuo He , Hongjin Si , Xinwei Zhang , Qing-Hui Chen , Jiangang Zou , Weihua Zhou

Objective. The paper investigates the presence of autism using the functional brain connectivity measures derived from electro-encephalogram (EEG) of children during face perception tasks. Approach. Phase synchronized patterns from…