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Eating monitoring has remained an open challenge in medical research for years due to the lack of non-invasive sensors for continuous monitoring and the reliable methods for automatic behavior detection. In this paper, we present a pilot…

Machine Learning · Computer Science 2025-02-21 Xu-Lu Zhang , Zhen-Qun Yang , Dong-Mei Jiang , Ga Liao , Qing Li , Ramesh Jain , Xiao-Yong Wei

Eating habits are learned throughout the early stages of our lives. However, it is not easy to be aware of how our food-related routine affects our healthy living. In this work, we address the unsupervised discovery of nutritional habits…

Computer Vision and Pattern Recognition · Computer Science 2020-09-17 Estefania Talavera , Andreea Glavan , Alina Matei , Petia Radeva

Advances in biosignal signal processing and machine learning, in particular Deep Neural Networks (DNNs), have paved the way for the development of innovative Human-Machine Interfaces for decoding the human intent and controlling artificial…

Machine Learning · Computer Science 2021-10-19 Elahe Rahimian , Soheil Zabihi , Amir Asif , Dario Farina , S. Farokh Atashzar , Arash Mohammadi

Robust perception is a vital component for ensuring safe autonomous and assisted driving. Automotive radar (77 to 81 GHz), which offers weather-resilient sensing, provides a complementary capability to the vision- or LiDAR-based autonomous…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Jen-Hao Cheng , Sheng-Yao Kuan , Hugo Latapie , Gaowen Liu , Jenq-Neng Hwang

Radar human motion recognition methods based on deep learning models has been a heated spot of remote sensing in recent years, yet the existing methods are mostly radial-oriented. In practical application, the test data could be…

Signal Processing · Electrical Eng. & Systems 2025-01-22 Hao Fan , Lingfeng Chen , Chengbai Xu , Jiadong Zhou , Yongpeng Dai , Panhe HU

Non-contact radar-based human sensing is often interpreted using simplified motion assumptions. However, respiration induces non-rigid surface deformation of the human body that impacts electromagnetic wave scattering and can degrade the…

Signal Processing · Electrical Eng. & Systems 2026-01-12 Guangqi Shi , Kimitaka Sumi , Takuya Sakamoto

Traditional machine learning algorithms using hand-crafted feature extraction techniques (such as local binary pattern) have limited accuracy because of high variation in images of the same class (or intra-class variation) for food…

Computer Vision and Pattern Recognition · Computer Science 2018-12-27 Bappaditya Mandal , N. B. Puhan , Avijit Verma

Accurate dietary assessment is critical for precision nutrition, yet most image-based methods rely on a single pre-consumption image and provide only coarse, meal-level estimates. These approaches cannot determine what was actually consumed…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Gautham Vinod , Siddeshwar Raghavan , Bruce Coburn , Fengqing Zhu

Modern deep learning techniques have enabled advances in image-based dietary assessment such as food recognition and food portion size estimation. Valuable information on the types of foods and the amount consumed are crucial for prevention…

Computer Vision and Pattern Recognition · Computer Science 2021-02-02 Jiangpeng He , Runyu Mao , Zeman Shao , Janine L. Wright , Deborah A. Kerr , Carol J. Boushey , Fengqing Zhu

Acquiring food items with a fork poses an immense challenge to a robot-assisted feeding system, due to the wide range of material properties and visual appearances present across food groups. Deformable foods necessitate different skewering…

Robotics · Computer Science 2022-12-01 Priya Sundaresan , Suneel Belkhale , Dorsa Sadigh

Currently, most food recognition relies on deep learning for category classification. However, these approaches struggle to effectively distinguish between visually similar food samples, highlighting the pressing need to address…

Machine Learning · Computer Science 2024-03-20 Guohang Zhuang , Yue Hu , Tianxing Yan , JiaZhan Gao

Diseases resulting from prolonged smoking are the most common preventable causes of death in the world today. In this report we investigate the success of utilizing accelerometer sensors in smart watches to identify smoking gestures. Early…

Machine Learning · Computer Science 2020-03-06 Casey A. Cole , Bethany Janos , Dien Anshari , James F. Thrasher , Scott Strayer , Homayoun Valafar

Recognizing animal activities holds a crucial role in monitoring animals' health and well-being. Additionally, a considerable audience is keen on monitoring their pets' well-being and health status. Insight into animals' habitual activities…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Ehsan Sadeghi , Abel van Raalte , Alessandro Chiumento , Paul Havinga

Deep neural network based learning approaches is widely utilized for image classification or object detection based problems with remarkable outcomes. Realtime Object state estimation of objects can be used to track and estimate the…

Human-Computer Interaction · Computer Science 2020-06-29 Siddarth S , Sainath G , Vignesh S

This study proposes a personal identification technique that applies machine learning with a two-layered convolutional neural network to spectrogram images obtained from radar echoes of a target person in motion. The walking and sitting…

Signal Processing · Electrical Eng. & Systems 2023-07-19 Takuya Sakamoto

As robots become increasingly prevalent in both homes and industrial settings, the demand for intuitive and efficient human-machine interaction continues to rise. Gesture recognition offers an intuitive control method that does not require…

Robotics · Computer Science 2025-09-16 Yuqing Song , Cesare Tonola , Stefano Savazzi , Sanaz Kianoush , Nicola Pedrocchi , Stephan Sigg

Nowadays, it is common for people to take photographs of every beverage, snack, or meal they eat and then post these photographs on social media platforms. Leveraging these social trends, real-time food recognition and reliable…

Computer Vision and Pattern Recognition · Computer Science 2023-05-15 Aknur Karabay , Arman Bolatov , Huseyin Atakan Varol , Mei-Yen Chan

First-person (wearable) camera continually captures unscripted interactions of the camera user with objects, people, and scenes reflecting his personal and relational tendencies. One of the preferences of people is their interaction with…

Computer Vision and Pattern Recognition · Computer Science 2018-08-30 Md. Mostafa Kamal Sarker , Hatem A. Rashwan , Estefania Talavera , Syeda Furruka Banu , Petia Radeva , Domenec Puig

The interest of the automotive industry has progressively focused on subjects related to driver assistance systems as well as autonomous cars. Cars combine a variety of sensors to perceive their surroundings robustly. Among them, radar…

Signal Processing · Electrical Eng. & Systems 2020-07-23 Nicolae-Cătălin Ristea , Andrei Anghel , Radu Tudor Ionescu

Camera-based passive dietary intake monitoring is able to continuously capture the eating episodes of a subject, recording rich visual information, such as the type and volume of food being consumed, as well as the eating behaviours of the…