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Deep neural networks are parametrized by several thousands or millions of parameters, and have shown tremendous success in many classification problems. However, the large number of parameters makes it difficult to integrate these models…

机器学习 · 计算机科学 2022-01-04 Eun Som Jeon , Anirudh Som , Ankita Shukla , Kristina Hasanaj , Matthew P. Buman , Pavan Turaga

Photoplethysmography (PPG) is a cost-effective and non-invasive technique that utilizes optical methods to measure cardiac physiology. PPG has become increasingly popular in health monitoring and is used in various commercial and clinical…

机器学习 · 计算机科学 2024-06-13 Khuong Vo , Mostafa El-Khamy , Yoojin Choi

Cardiac abnormalities affecting heart rate and rhythm are commonly observed in both healthy and acutely unwell people. Although many of these are benign, they can sometimes indicate a serious health risk. ECG monitors are typically used to…

信号处理 · 电气工程与系统科学 2018-07-12 Stewart Whiting , Samuel Moreland , Jason Costello , Glen Colopy , Christopher McCann

Goal: A new method for heart rate monitoring using photoplethysmography (PPG) during physical activities is proposed. Methods: It jointly estimates spectra of PPG signals and simultaneous acceleration signals, utilizing the multiple…

其他计算机科学 · 计算机科学 2015-07-22 Zhilin Zhang

Modern smartwatches often include photoplethysmographic (PPG) sensors to measure heartbeats or blood pressure through complex algorithms that fuse PPG data with other signals. In this work, we propose a collaborative inference approach that…

信号处理 · 电气工程与系统科学 2023-06-13 Alessio Burrello , Matteo Risso , Noemi Tomasello , Yukai Chen , Luca Benini , Enrico Macii , Massimo Poncino , Daniele Jahier Pagliari

Diffusion Models (DMs), also referred to as score-based diffusion models, utilize neural networks to specify score functions. Unlike most other probabilistic models, DMs directly model the score functions, which makes them more flexible to…

机器学习 · 计算机科学 2023-04-11 Weijian Luo

Recent advances in large-scale visual representation learning have significantly improved performance in plant species and plant disease recognition tasks. However, state-of-the-art models, often based on high-capacity vision transformers…

计算机视觉与模式识别 · 计算机科学 2026-05-01 Ilyass Moummad , Reda Bensaid , Kawtar Zaher , Hervé Goëau , Jean-Christophe Lombardo , Joseph Salmon , Pierre Bonnet , Alexis Joly

Most deep learning models of multiclass arrhythmia classification are tested on fingertip photoplethysmographic (PPG) data, which has higher signal-to-noise ratios compared to smartwatch-derived PPG, and the best reported sensitivity value…

This study introduces a novel application of a Generative Pre-trained Transformer (GPT) model tailored for photoplethysmography (PPG) signals, serving as a foundation model for various downstream tasks. Adapting the standard GPT…

机器学习 · 计算机科学 2025-03-12 Zhaoliang Chen , Cheng Ding , Saurabh Kataria , Runze Yan , Minxiao Wang , Randall Lee , Xiao Hu

Non-contact remote photoplethysmography (rPPG) technology enables heart rate measurement from facial videos. However, existing network models still face challenges in accu racy, robustness, and generalization capability under complex…

计算机视觉与模式识别 · 计算机科学 2025-07-11 Kang Cen , Chang-Hong Fu , Hong Hong

An electrocardiogram (ECG) monitors the electrical activity generated by the heart and is used to detect fatal cardiovascular diseases (CVDs). Conventionally, to capture the precise electrical activity, clinical experts use multiple-lead…

医学物理 · 物理学 2023-07-24 Ekansh Chauhan , Swathi Guptha , Likith Reddy , Bapi Raju

Remote photoplethysmography (rPPG) monitors heart rate without requiring physical contact, which allows for a wide variety of applications. Deep learning-based rPPG have demonstrated superior performance over the traditional approaches in…

计算机视觉与模式识别 · 计算机科学 2022-05-12 Ze Yang , Haofei Wang , Feng Lu

Recent advances in deep learning have made it increasingly feasible to estimate heart rate remotely in smart environments by analyzing videos. However, a notable limitation of deep learning methods is their heavy reliance on extensive sets…

计算机视觉与模式识别 · 计算机科学 2023-10-25 Divij Gupta , Ali Etemad

Wearable measurements, such as those obtained by photoplethysmogram (PPG) sensors are highly susceptible to motion artifacts and noise, affecting cardiovascular measures. Chest-acquired PPG signals are especially vulnerable, with signal…

信号处理 · 电气工程与系统科学 2025-03-19 Sara Maria Pagotto , Federico Tognoni , Matteo Rossi , Dario Bovio , Caterina Salito , Luca Mainardi , Pietro Cerveri

Objective- Heart rate monitoring using wrist type Photoplethysmographic (PPG) signals is getting popularity because of construction simplicity and low cost of wearable devices. The task becomes very difficult due to the presence of various…

Photoplethysmography (PPG) signal comprises physiological information related to cardiorespiratory health. However, while recording, these PPG signals are easily corrupted by motion artifacts and body movements, leading to noise enriched,…

信号处理 · 电气工程与系统科学 2022-10-11 Tamaghno Chatterjee , Aayushman Ghosh , Sayan Sarkar

Photorealistic style transfer entails transferring the style of a reference image to another image so the result seems like a plausible photo. Our work is inspired by the observation that existing models are slow due to their large sizes.…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Tai-Yin Chiu , Danna Gurari

Heart-rate estimation is a fundamental feature of modern wearable devices. In this paper we propose a machine intelligent approach for heart-rate estimation from electrocardiogram (ECG) data collected using wearable devices. The novelty of…

Photoplethysmography (PPG) signals, typically acquired from wearable devices, hold significant potential for continuous fitness-health monitoring. In particular, heart conditions that manifest in rare and subtle deviating heart patterns may…

机器学习 · 计算机科学 2023-07-14 Ramin Ghorbani , Marcel J. T. Reinders , David M. J. Tax

Knowledge distillation in machine learning is the process of transferring knowledge from a large model called the teacher to a smaller model called the student. Knowledge distillation is one of the techniques to compress the large network…

机器学习 · 计算机科学 2022-06-27 Durga Prasad Ganta , Himel Das Gupta , Victor S. Sheng