中文
相关论文

相关论文: Electrocardiogram signal denoising using non-local…

200 篇论文

The transformer based model (e.g., FusingTF) has been employed recently for Electrocardiogram (ECG) signal classification. However, the high-dimensional embedding obtained via 1-D convolution and positional encoding can lead to the loss of…

信号处理 · 电气工程与系统科学 2021-04-01 Jian Guan , Wenbo Wang , Pengming Feng , Xinxin Wang , Wenwu Wang

Method: In this study, a new method is introduced for distinguishing noise-free segments of ECG from noisy segments that use sample amplitude dispersion with an adoptive threshold for variance of samples amplitude and a method which uses…

信号处理 · 电气工程与系统科学 2021-05-24 Zahra Rezaei Khavas , Babak Mohammadzadeh Asl

This paper studies the achievable rates of Gaussian interference channels with additive white Gaussian noise (AWGN), when improper or circularly asymmetric complex Gaussian signaling is applied. For the Gaussian multiple-input…

信息论 · 计算机科学 2016-11-18 Yong Zeng , Cenk M. Yetis , Erry Gunawan , Yong Liang Guan , Rui Zhang

Electrocardiogram (ECG) signals, profiling the electrical activities of the heart, are used for a plethora of diagnostic applications. However, ECG systems require multiple leads or channels of signals to capture the complete view of the…

信号处理 · 电气工程与系统科学 2024-05-31 Nabil Ibtehaz , Masood Mortazavi

A fractional-based compressed auto-encoder architecture has been introduced to solve the problem of denoising electroencephalogram (EEG) signals. The architecture makes use of fractional calculus to calculate the gradients during the…

机器学习 · 计算机科学 2021-07-08 Subham Nagar , Ahlad Kumar , M. N. S. Swamy

We consider the Additive White Gaussian Noise channel with Binary Phase Shift Keying modulation. Our aim is to enable an algebraic hard decision Bounded Minimum Distance decoder for a binary block code to exploit soft information obtained…

信息论 · 计算机科学 2009-05-18 Christian Senger , Vladimir Sidorenko , Victor Zyablov

The multiple fundamental frequency detection problem and the source separation problem from a single-channel signal containing multiple oscillatory components and a nonstationary noise are both challenging tasks. To extract the fetal…

定量方法 · 定量生物学 2016-09-13 Su Li , Hau-tieng Wu

An essential part for the accurate classification of electrocardiogram (ECG) signals is the extraction of informative yet general features, which are able to discriminate diseases. Cardiovascular abnormalities manifest themselves in…

信号处理 · 电气工程与系统科学 2024-07-11 Maximilian P Oppelt , Maximilian Riehl , Felix P Kemeth , Jan Steffan

The development of a system that would ease the diagnosis of heart diseases would also fasten the work of the cardiologic department in hospitals and facilitate the monitoring of patients with portable devices. This paper presents a tool…

计算工程、金融与科学 · 计算机科学 2017-05-09 Zoja Vulaj , Andjela Draganic , Milos Brajovic , Irena Orovic

This paper proposes the application of Discrete Wavelet Transform (DWT) to detect the QRS (ECG is characterized by a recurrent wave sequence of P, QRS and T-wave) of an electrocardiogram (ECG) signal. Wavelet Transform provides localization…

计算机视觉与模式识别 · 计算机科学 2017-03-02 Rachid Haddadi , Elhassane Abdelmounim , Mustapha El Hanine , Abdelaziz Belaguid

During the acquisition of an image from its source, noise always becomes an integral part of it. Various algorithms have been used in past to denoise the images. Image denoising still has scope for improvement. Visual information…

图像与视频处理 · 电气工程与系统科学 2019-09-17 Santosh Paudel , Ajay Kumar Shrestha , Pradip Singh Maharjan , Rameshwar Rijal

Excess transient noise artifacts, or glitches impact the data quality of ground-based gravitational-wave (GW) detectors and impair the detection of signals produced by astrophysical sources. Mitigation of glitches is crucial for improving…

广义相对论与量子宇宙学 · 物理学 2021-07-09 Kentaro Mogushi

Displacement estimation is very important in ultrasound elastography and failing to estimate displacement correctly results in failure in generating strain images. As conventional ultrasound elastography techniques suffer from decorrelation…

图像与视频处理 · 电气工程与系统科学 2019-04-25 Md. Golam Kibria , Hassan Rivaz

This note is devoted to an analysis of the so-called peeling algorithm in wavelet denoising. Assuming that the wavelet coefficients of the signal can be modeled by generalized Gaussian random variables, we compute a critical thresholding…

统计理论 · 数学 2009-11-23 Céline Lacaux , Aurélie Muller , Radu Ranta , Samy Tindel

Physiological signals are often corrupted by motion artifacts, baseline drift, and other low-SNR disturbances, which pose significant challenges for analysis. Additionally, these signals exhibit strong non-stationarity, with sharp peaks and…

机器学习 · 计算机科学 2025-10-21 Yanlong Chen , Mattia Orlandi , Pierangelo Maria Rapa , Simone Benatti , Luca Benini , Yawei Li

A large number of people suffer from life-threatening cardiac abnormalities, and electrocardiogram (ECG) analysis is beneficial to determining whether an individual is at risk of such abnormalities. Automatic ECG classification methods,…

人工智能 · 计算机科学 2022-06-23 Yuexin Bian , Jintai Chen , Xiaojun Chen , Xiaoxian Yang , Danny Z. Chen , JIan Wu

Mammography is using low-energy X-rays to screen the human breast and is utilized by radiologists to detect breast cancer. Typically radiologists require a mammogram with impeccable image quality for an accurate diagnosis. In this study, we…

图像与视频处理 · 电气工程与系统科学 2019-12-12 Dominik Eckert , Sulaiman Vesal , Ludwig Ritschl , Steffen Kappler , Andreas Maier

In this paper, a novel ECG monitoring approach based on IoT technology is suggested. This paper proposes a routing system for IoT healthcare platforms based on Dynamic Source Routing (DSR) and Routing by Energy and Link Quality (REL). In…

信号处理 · 电气工程与系统科学 2022-07-05 Ahmad M. Karim

Attention-based transformers have played an important role in wireless sensor network (WSN) timing anomaly detection due to their ability to capture long-term dependencies. However, there are several issues that must be addressed, such as…

信号处理 · 电气工程与系统科学 2025-03-04 Miao Ye , Zhibang Jiang , Xingsi Xue , Xingwang Li , Peng Wen , Yong Wang

EEG technology finds applications in several domains. Currently, most EEG systems require subjects to wear several electrodes on the scalp to be effective. However, several channels might include noisy information, redundant signals, induce…

信号处理 · 电气工程与系统科学 2021-06-22 Michela C. Massi , Francesca Ieva
‹ 上一页 1 8 9 10 下一页 ›