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Sensors, Volume 25, Issue 22

2025 November-2 - 292 articles

Cover Story: This work presents a smart irrigation system to challenge agricultural inefficiency, which accounts for 70% of global freshwater use. We propose a novel edge-computing architecture that integrates soil and weather sensors via a LoRaWAN network, managed by an Arduino Edge Control. The core innovation is an embedded LSTM neural network model that predicts water requirements, enabling autonomous and predictive Controlled Deficit Irrigation (CDI). This moves beyond state-of-the-art systems that rely on fixed thresholds by using deep learning for proactive decision-making. Our objectives are to design this predictive control architecture, successfully deploy the LoRaWAN sensor network, and empirically evaluate the LSTM’s performance in optimizing water use under real field conditions, advancing towards sustainable precision agriculture. View this paper
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Articles (292)

  • Article
  • Open Access
823 Views
27 Pages

RecovGait: Occluded Parkinson’s Disease Gait Reconstruction Using Unscented Tracking with Gated Initialization Technique

  • Chiau Wen Yeong,
  • Tee Connie,
  • Thian Song Ong,
  • Nor Izzati Saedon,
  • Ahmad Al-Khatib and
  • Mahmoud Farfoura

20 November 2025

Parkinson’s disease is a neurodegenerative disorder disease that worsens over time and involves the deterioration of nerve cells in the brain. Gait analysis has emerged as a promising tool for early detection and monitoring of Parkinson’s...

  • Data Descriptor
  • Open Access
1 Citations
2,422 Views
27 Pages

DLCPD-25: A Large-Scale and Diverse Dataset for Crop Disease and Pest Recognition

  • Heng-Wei Zhang,
  • Rui-Feng Wang,
  • Zhengle Wang and
  • Wen-Hao Su

20 November 2025

The accurate identification of crop pests and diseases is critical for global food security, yet the development of robust deep learning models is hindered by the limitations of existing datasets. To address this gap, we introduce DLCPD-25, a new lar...

  • Article
  • Open Access
732 Views
15 Pages

20 November 2025

This study presents the development and validation of a low-cost, open-source sensor system for cyclists that automatically detects vehicle overtaking events while simultaneously monitoring air quality. The system integrates multiple ultrasonic senso...

  • Article
  • Open Access
744 Views
22 Pages

20 November 2025

Single-image dehazing suffers from severe information loss and the under-constraint problem. The lack of high-quality robust priors leads to limited generalization ability of existing dehazing methods in real-world scenarios. To tackle this challenge...

  • Article
  • Open Access
1 Citations
807 Views
21 Pages

20 November 2025

Accurate depth estimation is fundamental for underwater applications such as robotics and marine exploration. However, underwater imaging suffers from severe degradation due to light attenuation, scattering, and geometric distortion, which is compoun...

  • Review
  • Open Access
5 Citations
1,640 Views
45 Pages

Overview of Monitoring, Diagnostics, Aging Analysis, and Maintenance Strategies in High-Voltage AC/DC XLPE Cable Systems

  • Kazem Emdadi,
  • Majid Gandomkar,
  • Ali Aranizadeh,
  • Behrooz Vahidi and
  • Mirpouya Mirmozaffari

20 November 2025

High-voltage (HV) cable systems—particularly those insulated with cross-linked polyethylene (XLPE)—are increasingly deployed in both AC and DC applications due to their excellent electrical and mechanical performance. However, their long-...

  • Article
  • Open Access
817 Views
29 Pages

20 November 2025

Social robots in public cultural venues, such as science museums, must engage diverse visitors through brief, one-off encounters where long-term user modeling is infeasible. This research examines immediately interpretable behavioral cues of a robot...

  • Article
  • Open Access
738 Views
25 Pages

20 November 2025

Deep neural networks have outperformed conventional methods in various fields such as image recognition, natural language processing, and speech recognition. In particular, vision models are widely applied to real-world domains including medical imag...

  • Article
  • Open Access
1 Citations
1,295 Views
32 Pages

AI-Driven Resilient Fault Diagnosis of Bearings in Rotating Machinery

  • Syed Muhammad Wasi ul Hassan Naqvi,
  • Arsalan Arif,
  • Asif Khan,
  • Fazail Bangash,
  • Ghulam Jawad Sirewal and
  • Bin Huang

20 November 2025

Predictive maintenance is increasingly important in rotating machinery to prevent unexpected failures, reduce downtime, and improve operational efficiency. This study compares the efficacy of traditional machine learning (ML) and deep learning (DL) t...

  • Article
  • Open Access
1,077 Views
21 Pages

20 November 2025

Photoplethysmography (PPG)-based heart rate variability (HRV) offers a cost-effective alternative to electrocardiography (ECG) for autonomic monitoring in wearable devices. We optimized signal processing on a 16-bit microcontroller by comparing 4th-o...

  • Article
  • Open Access
635 Views
29 Pages

20 November 2025

Accurately forecasting traffic congestion on urban expressways remains challenging, especially under unstable flow conditions where conventional machine learning models often suffer from reduced accuracy and interpretability. This study introduces a...

  • Article
  • Open Access
669 Views
18 Pages

20 November 2025

Repeatability accuracy is a key performance metric for robotic arms. To address limitations in existing monocular vision-based measurement methods, this study proposes a likelihood-based pose estimation approach. Our method first obtains initial pose...

  • Article
  • Open Access
3 Citations
855 Views
28 Pages

20 November 2025

Unmanned aerial vehicle (UAV) vision systems have been widely deployed for aerial monitoring applications, yet small-target detection in UAV imagery remains a significant challenge due to minimal pixel representation, substantial scale variations, co...

  • Article
  • Open Access
782 Views
13 Pages

Biochemical Sensing Application of Surface Plasmon Resonance Sensor Based on Flexible PDMS Substrate

  • Danfeng Lu,
  • Mingyue Li,
  • Chenxi Yang,
  • Luyang Chen,
  • Minghui Wang and
  • Congjun Cao

20 November 2025

This study presents the design and implementation of a surface plasmon resonance (SPR) sensor in the Kretschmann configuration, employing a gold film deposited on a flexible polydimethylsiloxane (PDMS) substrate as the SPR chip. The refractive-index...

  • Article
  • Open Access
629 Views
15 Pages

Georadar Waveform Characterization of Tunnel Lining Rear Defects and Joint Detection Method in Time and Frequency Domains

  • Jian Liu,
  • Wei Yan,
  • Gaohang Lv,
  • Lei Kou,
  • Bo Li,
  • Xiao Zhang,
  • Guanhong Lu and
  • Quanyi Xie

20 November 2025

Aiming at the signal interference and feature recognition difficulties existing in the detection of concealed defects such as cracks and voids behind the tunnel lining, this study carried out a 1:1 reinforced concrete–steel arch frame composite...

  • Article
  • Open Access
1,337 Views
20 Pages

Integration of Multi-Sensor Fusion and Decision-Making Architecture for Autonomous Vehicles in Multi-Object Traffic Conditions

  • Hai Ngoc Nguyen,
  • Thien Nguyen Luong,
  • Tuan Pham Minh,
  • Nguyen Mai Thi Hong,
  • Kiet Tran Anh,
  • Quan Bui Hong and
  • Ngoc Pham Van Bach

20 November 2025

Autonomous vehicles represent a transformative technology in modern transportation, promising enhanced safety, efficiency, and accessibility in mobility systems. This paper presents a comprehensive autonomous vehicle system designed specifically for...

  • Article
  • Open Access
610 Views
17 Pages

Multi-Feature Fusion for Fiber Optic Vibration Identification Based on Denoising Diffusion Probabilistic Models

  • Keju Zhang,
  • Tingshuo Wang,
  • Jianwei Wu,
  • Qin Zheng,
  • Caiyi Chen and
  • Jiaxiang Lin

20 November 2025

Fiber optic vibration identification has significant applications in engineering fields, like security surveillance and structural health assessment. However, present methods primarily depend on either temporal–frequency domain or image feature...

  • Article
  • Open Access
709 Views
13 Pages

Discriminating Interference Fading Locations in Φ-OTDR Using Improved Density Clustering Algorithm

  • Hongyu Tao,
  • Miao Yu,
  • Zhaoyang Zhang,
  • Shijie Li,
  • Huan Liu,
  • Guangxi Li and
  • Mingyang Sun

20 November 2025

The phase-sensitive optical time-domain reflectometer (Φ-OTDR) system is a distributed optical fiber sensing technology capable of measuring weak vibration signals in real time. However, while the use of a narrow-linewidth laser source enhances t...

  • Article
  • Open Access
1,813 Views
15 Pages

Edge-Computing Smart Irrigation Controller Using LoRaWAN and LSTM for Predictive Controlled Deficit Irrigation

  • Carlos Cambra Baseca,
  • Rogério Dionísio,
  • Fernando Ribeiro and
  • José Metrôlho

20 November 2025

Enhancing sustainability in agriculture has become a significant challenge today where in the current context of climate change, particularly in countries of the Mediterranean area, the amount of water available for irrigation is becoming increasingl...

  • Article
  • Open Access
622 Views
17 Pages

A Progressive Feature Learning Network for Cordyceps sinensis Image Recognition

  • Shangdong Liu,
  • Wenxiang Wu,
  • Haijun Chen,
  • Shuai You,
  • Jiahuan Lu,
  • Lin Mao,
  • Fan Zhang and
  • Yimu Ji

20 November 2025

Cordyceps sinensis (C. sinensis) is a valuable herbal medicine with wide-ranging applications. However, automating C. sinensis recognition is challenging due to the high morphological similarity and limited phenotypic variation among its subspecies....

  • Article
  • Open Access
1,157 Views
19 Pages

New Insights on Hydration Monitoring in Elderly Patients by Interdigitated Wearable Sensors

  • Leila Es Sebar,
  • Stefano Bonaldo,
  • Loredana Cristaldi,
  • Lara Franchin,
  • Sabrina Grassini,
  • Leonardo Iannucci,
  • Luca Lombardo,
  • Chiara Mineo,
  • Andrea Neviani and
  • Cesare Svelto
  • + 3 authors

20 November 2025

The progressive aging of the population requires reliable, non-invasive, and real-time tools to monitor hydration, prevent dehydration-related complications, and promote active aging in elderly patients. Wearable sensors based on interdigitated elect...

  • Article
  • Open Access
1 Citations
1,182 Views
16 Pages

ParCuR—A Novel AI-Enabled Gait Cueing Wearable for Patients with Parkinson’s Disease

  • Telmo Lopes,
  • Manuel Reis Carneiro,
  • Ana Morgadinho,
  • Diogo Reis Carneiro and
  • Mahmoud Tavakoli

20 November 2025

Freezing of gait (FoG) is a common motor symptom in advanced Parkinson’s disease, leading to falls, disability, and reduced quality of life. Although cueing systems using visual or auditory stimuli can help patients resume walking, existing sol...

  • Review
  • Open Access
2,664 Views
49 Pages

20 November 2025

Over the past decade, near-infrared-II (NIR-II, 1000–1700 nm) fluorescence imaging has become a focal point in tumor imaging due to its advantages of low light scattering, weak biological autofluorescence, extraordinary penetration depth, high...

  • Article
  • Open Access
880 Views
14 Pages

Blind Image Quality Assessment Using Convolutional Neural Networks

  • Mariusz Frackiewicz,
  • Henryk Palus and
  • Wojciech Trojanowski

20 November 2025

In the domain of image and multimedia processing, image quality is a critical factor, as it directly influences the performance of subsequent tasks such as compression, transmission, and content analysis. Reliable assessment of image quality is there...

  • Article
  • Open Access
879 Views
17 Pages

Comparing the Informative Value of 2-Minute Segments of the 6-Minute Walk Test: Insights into a Prospective Study on Parkinson’s Disease

  • Rosalia Zangari,
  • Laura Brighina,
  • Andrea Pilotto,
  • Greta Carioli,
  • Vincenzo D’Agostino,
  • Armando Oppo,
  • Andrea Rizzardi,
  • Alessandro Padovani,
  • Francesco Biroli and
  • Dario Alimonti

20 November 2025

Gait assessment is key in Parkinson’s disease (PD), but the psychometric properties of common tests like the 6-Minute Walk Test (6MWT) are not fully established. Inertial Measurement Units (IMUs) offer objective gait measures, potentially reduc...

  • Article
  • Open Access
775 Views
16 Pages

Development and Usability of MSafe: A Fall Risk Application for Older Adults with Multiple Sclerosis

  • Katherine L. Hsieh,
  • Deborah Backus,
  • T. Bradley Willingham and
  • Jon Sanford

20 November 2025

Background: Falls are highly prevalent in older adults with Multiple Sclerosis (MS) and stem from a complex interplay of physiological, psychosocial, cognitive, and environmental risk factors. Fall risk assessments rely on in-person visits and occur...

  • Article
  • Open Access
1,157 Views
21 Pages

20 November 2025

As cyber threats continue to grow in complexity and sophistication, the need for advanced network and sensor security solutions has never been more urgent. Traditional intrusion detection methods struggle to keep pace with the sheer volume of network...

  • Article
  • Open Access
1 Citations
1,636 Views
14 Pages

Dynamic Golf Swing Analysis Framework Based on Efficient Similarity Assessment

  • Seung-Su Lee,
  • Jun-Hyuk Choi,
  • Jeongeun Byun and
  • Kwang-Il Hwang

19 November 2025

With advances in computing power and deep learning, image-based pose estimation has become a viable tool for quantitative motion analysis. Compared to sensor-based systems, vision-based approaches are cost-effective, portable, and easy to deploy. How...

  • Article
  • Open Access
528 Views
21 Pages

An Unsupervised Image Enhancement Framework for Multiple Fault Detection of Insulators

  • Jiaxin Guo,
  • Gujing Han,
  • Min He,
  • Yu Li,
  • Liang Qin and
  • Kaipei Liu

19 November 2025

To address the problem of low detection accuracy caused by uneven brightness distribution in transmission line inspection images under complex lighting conditions, this paper proposes an unsupervised image enhancement method that integrates grayscale...

  • Article
  • Open Access
1 Citations
1,248 Views
22 Pages

19 November 2025

The explosive growth in Internet of Things (IoT) technologies has given rise to significant security concerns, especially with the emergence of sophisticated and zero-day malware attacks. Conventional malware detection methods based on static or dyna...

  • Article
  • Open Access
1 Citations
1,110 Views
27 Pages

Explainable Deep Learning Framework for Binary Corrosion Image Classification Using Grad-CAM

  • Muhammad Amir Imran Aminudin,
  • Mohd Na’im Abdullah,
  • Faizal Mustapha,
  • Kee Kok Eng,
  • Mazli Mustapha and
  • Aliyu Mustapha

19 November 2025

Corrosion in metallic materials is a critical challenge in maintenance and safety, and traditional visual inspection methods are often time-consuming, labor-intensive, and dependent on human expertise, highlighting the need for more efficient and rel...

  • Article
  • Open Access
602 Views
22 Pages

Acousto-Electronic Sensor Based on Langmuir-Blodgett Films of Tetra-Tert-Butylphthalocyaninate Zinc for Chemical Vapor Detection

  • Ilya Gorbachev,
  • Andrey Smirnov,
  • Vladimir Kolesov,
  • Alexey Yagodin,
  • Alexander Martynov,
  • Yulia Gorbunova and
  • Iren Kuznetsova

19 November 2025

In this work, the sensor properties of multilayered Langmuir-Blodgett (LB) films of tetra-tert-butylphthalocyaninate zinc (tBuZnPc) were studied using an acoustoelectronic method. The morphology and optical properties of the fabricated films were cha...

  • Article
  • Open Access
1 Citations
616 Views
12 Pages

Measurement of Hand Function by an Automated Device—System Validation and Usability Analysis

  • Margarida Vieira,
  • Tobias Barth,
  • Matthias Münch,
  • Natascha Koch,
  • Alexander Kögel,
  • Marie Stroetmann and
  • Arndt Peter Schulz

19 November 2025

(1) Aim: This study aims to assess the repeatability and accuracy of a 9-axis IMU-based glove and an IR camera system, in order to determine their potential to replace traditional goniometry. (2) Background: Traditional methods for assessing hand fun...

  • Article
  • Open Access
738 Views
23 Pages

Takens-Based Kernel Transfer Entropy Connectivity Network for Motor Imagery Classification

  • Alejandra Gomez-Rivera,
  • Andrés M. Álvarez-Meza,
  • David Cárdenas-Peña and
  • Alvaro Orozco-Gutierrez

19 November 2025

Reliable decoding of motor imagery (MI) from electroencephalographic signals remains a challenging problem due to their nonlinear, noisy, and non-stationary nature. To address this issue, this work proposes an end-to-end deep learning model, termed T...

  • Article
  • Open Access
559 Views
28 Pages

19 November 2025

Vehicle platoons offer significant benefits in connected vehicle environments, including reduced travel time, increased throughput, mitigated congestion, and lower energy consumption. To adapt to dynamic traffic conditions, platoon formations must be...

  • Article
  • Open Access
902 Views
18 Pages

A Machine Learning Approach for Estimating Person Counts Using Anonymous WiFi Data in a University Library

  • Lucio Hernando-Cánovas,
  • Alejandro S. Martínez-Sala,
  • Juan C. Sánchez-Aarnoutse and
  • Juan J. Alcaraz

19 November 2025

Accurately estimating indoor occupancy is essential for managing building spaces and infrastructure, with applications ranging from ensuring safe distancing and adequate ventilation during health crises to optimizing energy consumption and resource a...

  • Article
  • Open Access
1 Citations
888 Views
17 Pages

19 November 2025

To meet the demand for rapid and accurate glucose determination in clinical diagnostics, food testing, and related fields, this study developed a high-performance electrochemical glucose biosensor based on multi-walled carbon nanotubes/Prussian blue/...

  • Article
  • Open Access
429 Views
20 Pages

19 November 2025

In order to mitigate the influence of turbulence on pulse amplitude modulation–pulse position modulation (PAM-PPM) optical signals, which represents a promising avenue for future high-speed free-space optical (FSO) communication, this paper pro...

  • Article
  • Open Access
890 Views
14 Pages

Improved Edge Pixel Resolution in Modular PET Detectors with Partly Segmented Light Guides

  • Henry Maa-Hacquoil,
  • Harutyun Poladyan,
  • Brandon Baldassi,
  • Borys Komarov,
  • Janos Rado,
  • Oleksandr Bubon and
  • Alla Reznik

19 November 2025

Background: The asymmetric distribution of optical photons near the edges of Positron Emission Tomography (PET) sensor modules introduces errors in the coordinate reconstruction of scintillation events when center-of-gravity (CoG) algorithms are util...

  • Article
  • Open Access
669 Views
20 Pages

19 November 2025

An optical camera-based integrated sensing and communication (OC-ISAC) system model is proposed to address the intrinsic requirements of vehicular-to-everything (V2X) applications in complex outdoor environments. The model enables the coexistence and...

  • Article
  • Open Access
595 Views
20 Pages

19 November 2025

A robust multi-sensor recursive Expectation-Maximization (RMSREM) algorithm is proposed in this paper for autoregressive eXogenous (ARX) models, addressing the challenges of heavy-tailed noise, as well as the difficulty in simultaneously processing m...

  • Article
  • Open Access
3,264 Views
29 Pages

19 November 2025

Acoustic sensing is a passive and cost-effective option for unmanned aerial vehicle detection, where both signal processing and microphone hardware jointly determine field performance. In this study, we focus on the hardware front-end as a foundation...

  • Article
  • Open Access
1 Citations
1,115 Views
37 Pages

19 November 2025

Educational robotics (ER) has attracted growing attention as an effective means of cultivating computational thinking and programming skills through interactive, sensor-based learning environments. Integrating ER with visual programming platforms ena...

  • Systematic Review
  • Open Access
1,149 Views
17 Pages

Thermoregulation and Heat Stroke Prevention in Older Adults: Advances in Emerging Technologies and Interventions

  • Sandra Núñez-Rodríguez,
  • Carla Collazo-Riobó,
  • Félix Menéndez-Vega,
  • Javier Sedano,
  • Ana Isabel Sánchez-Iglesias,
  • Jerónimo Javier González-Bernal and
  • Josefa González-Santos

19 November 2025

This systematic review explores interventions and technologies aimed at assessing or improving thermoregulation in older adults (≥60 years) across community, clinical, and institutional settings. Following PRISMA guidelines, a comprehensive search...

  • Article
  • Open Access
607 Views
12 Pages

Ratio Fluorescence Determination of Tetracycline with Europium(III)-Doped Boron Nitride

  • Shang-Qing Zhang,
  • Xiao-Yan Sun,
  • Kai-Xin Liu and
  • Ming-Li Chen

19 November 2025

It is important to develop a tetracycline (TC) detection method with a simple synthesis method, high sensitivity, and fast detection speed. Herein, a novel sensor was designed using europium-doped boron nitride (BN-Eu) for evaluation on tetracycline...

  • Article
  • Open Access
774 Views
17 Pages

19 November 2025

Harmful algal blooms, particularly those caused by cyanobacteria (blue-green algae) and green algae, pose an increasing risk to aquatic ecosystems and public health. This risk is intensified by climate change and nutrient pollution. This study presen...

  • Editorial
  • Open Access
626 Views
5 Pages

19 November 2025

Health monitoring and advanced fault diagnosis are now critical features in modern engineering systems, the increasing complexity and new frameworks of which elevated the pressure for dependable reliability and safety measures [...]

  • Article
  • Open Access
939 Views
15 Pages

19 November 2025

In medical image segmentation, effective integration of global and local features is crucial. Current methods struggle to simultaneously model long-range dependencies and fine local details. Convolutional Neural Networks (CNNs) excel at extracting lo...

  • Article
  • Open Access
710 Views
22 Pages

Balancing Cost and Precision: An Experimental Evaluation of Sensors for Monitoring in Electrical Generation Systems

  • Janeth Alcalá,
  • J. Antonio Juárez,
  • Víctor Cárdenas,
  • Saida Charre-Ibarra,
  • Juan González-Rivera and
  • Jorge Gudiño-Lau

18 November 2025

The growing adoption of renewable energy conversion systems and smart infrastructures has increased the demand for accurate monitoring solutions to ensure system performance and reliability, as well as seamless integration with cloud-based platforms....

  • Article
  • Open Access
525 Views
15 Pages

18 November 2025

In this paper, we report on the characterization of a silicon carbide static induction transistor (SiC SIT) for potential use in sensor interface circuits that operate at frequencies up to 100 MHz and temperatures up to 400 °C. Measurements were...

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