Lun-Chi Chen

ORCID: 0000-0002-8449-7872
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About
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Research Areas
  • Video Surveillance and Tracking Methods
  • Caching and Content Delivery
  • Recommender Systems and Techniques
  • Industrial Vision Systems and Defect Detection
  • Image Enhancement Techniques
  • Machine Learning in Healthcare
  • Sepsis Diagnosis and Treatment
  • Flood Risk Assessment and Management
  • Anesthesia and Sedative Agents
  • Surface Roughness and Optical Measurements
  • Intensive Care Unit Cognitive Disorders
  • Image and Object Detection Techniques
  • Advanced Text Analysis Techniques
  • Anomaly Detection Techniques and Applications
  • COVID-19 diagnosis using AI
  • Human Pose and Action Recognition
  • Image Processing and 3D Reconstruction
  • Advanced Image and Video Retrieval Techniques
  • Advanced Image Processing Techniques
  • Cloud Computing and Remote Desktop Technologies
  • Biometric Identification and Security
  • Monoclonal and Polyclonal Antibodies Research
  • Explainable Artificial Intelligence (XAI)
  • Text and Document Classification Technologies
  • Healthcare Technology and Patient Monitoring

Tunghai University
2005-2025

National Center for High-Performance Computing
2014-2021

National Applied Research Laboratories
2015-2018

National Chung Hsing University
2013-2014

Abstract The wood-based furniture manufacturing industries prioritize quality of production to meet higher market demands. Identifying various types edge-glued wooden panel defects are a challenge for human worker or camera. Several studies have shown that the detection with low, high, normal, overlong, short is identified but residue and bluntness highly challenging. Thus, present model identifies by computer vision and/or deep learning, whereas learning based decide pass having better...

10.1007/s00226-021-01316-3 article EN cc-by Wood Science and Technology 2022-01-31

Open-box models in medical domain have high acceptance and demand by many examiners. Even though the accuracy predicted most of convolutional neural network (CNN) is high, it still not convincing as detail discussion regarding outcome semi-transparent functioning process. As pneumonia one top contagious infection that makes population affected due to low immunity. Therefore, goal this paper implement an interpretable classification using eXplainable AI (XAI-ICP). Thus, XAI-ICP highly...

10.1109/access.2023.3255403 article EN cc-by-nc-nd IEEE Access 2023-01-01

Street lighting is a fundamental aspect of security systems in homes, industrial facilities, and public places. To detect parking lot occupancy outdoor environments, street light control plays crucial role smart surveillance applications that can perform robustly extreme environments. However, traditional are mostly implemented for environments using costly sensor-based techniques. This study uses the Jetson TX2 to develop method accurately identify streetlights assist detection, thereby...

10.3390/app10031079 article EN cc-by Applied Sciences 2020-02-06

Abstract Background Agitation and sedation management is critical in intensive care as it affects patient safety. Traditional nursing assessments suffer from low frequency subjectivity. Automating these can boost unit (ICU) efficiency, treatment capacity, Objectives The aim of this study was to develop a machine-learning based assessment agitation sedation. Methods Using data the Taichung Veterans General Hospital ICU database (2020), an ensemble learning model developed for classifying...

10.2196/63601 article EN cc-by JMIR Medical Informatics 2025-02-26

Objective The aim of this study was to develop an artificial intelligence–based model detect the presence acute respiratory distress syndrome (ARDS) using clinical data and chest X-ray (CXR) data. Method transfer learning method used train a convolutional neural network (CNN) with external image dataset extract features. Then, last layer fine-tuned determine probability ARDS. were trained three machine algorithms—eXtreme Gradient Boosting (XGB), random forest (RF), logistic regression...

10.1177/20552076221120317 article EN cc-by-nc-nd Digital Health 2022-01-01

This study aimed to develop an early prediction model for identifying patients with bloodstream infections. The data resource was taken from 2015 2019 at Taichung Veterans General Hospital, and a total of 1647 infection episodes 3552 non-bloodstream in the intensive care unit (ICU) were included development evaluation. During analysis, 30 clinical variables selected, including patients’ basic characteristics, vital signs, laboratory data, information. Five machine learning algorithms applied...

10.3390/jcm10132901 article EN Journal of Clinical Medicine 2021-06-29

Abstract Objective To address the challenge of assessing sedation status in critically ill patients intensive care unit (ICU), we aimed to develop a non-contact automatic classifier agitation using artificial intelligence and deep learning. Methods We collected video recordings ICU cut them into 30-second (30-s) 2-second (2-s) segments. All segments were annotated with as “Attention” “Non-attention”. After transforming movement quantification, constructed models classifiers Threshold, Random...

10.1186/s12911-024-02479-2 article EN cc-by BMC Medical Informatics and Decision Making 2024-03-18

Early detection of rapidly progressive kidney disease is key to improving the renal outcome and reducing complications in adult patients with type 2 diabetes mellitus (T2DM). We aimed construct a 6-month machine learning (ML) predictive model for risk need nephrology referral T2DM an initial estimated glomerular filtration rate (eGFR) ≥ 60 mL/min/1.73 m2. extracted medical features from electronic records (EMR), cohort was divided into training/validation testing data set develop validate...

10.3390/ijerph20043396 article EN International Journal of Environmental Research and Public Health 2023-02-15

Evaluating several vital signs and chest X-ray (CXR) reports regularly to determine the recovery of pneumonia patients at general wards is a challenge for doctors. A recent study shows identification by history symptoms including signs, CXR, other clinical parameters, but they lack predicting status after starting treatment. The goal this paper provide prediction system early affected patient's discharge from hospital within 7 days or late more than days. This aims design multimodal data...

10.3390/diagnostics12071706 article EN cc-by Diagnostics 2022-07-13

Video surveillance systems are deployed at many places such as airports, train stations, and malls for security monitoring purposes. However, it is laborious to search retrieve persons in multicamera systems, especially with cluttered backgrounds appearance variations among multiple cameras. To solve these problems, this paper proposes a person retrieval method that extracts the attributes of masked image using an instance segmentation module each object interest. It uses color type clothes...

10.1155/2021/9566628 article EN cc-by Journal of Sensors 2021-01-01

Background: Antinuclear antibody pattern recognition is vital for autoimmune disease diagnosis but labor-intensive manual interpretation. To develop an automated system, we established machine learning models based on the International Consensus Antibody Patterns (ICAP) at a competent level, mixed patterns recognition, and evaluated their consistency with human reading. Methods: 51,694 epithelial cells (HEp-2) cell images assigned by experienced medical technologists collected in center were...

10.3390/diagnostics11040642 article EN cc-by Diagnostics 2021-04-01

As the globe undergoes extreme climate changes, disaster events and their scale continue to increase; therefore, it has become imperative devise prevention measures.Traditional flood monitoring devices, while operating in harsh environments, are often influenced by changes weather conditions such light, rain, fog.Consequently, recorded images blurred or damaged, which increases possibility of errors judgment delays hazard mitigation process.In this study, an automated identification method...

10.2991/iea-15.2015.65 article EN cc-by-nc Advances in engineering research/Advances in Engineering Research 2015-01-01

Sheet metal-based manufacturing industries operate on several varieties of sheet metal parts. Previously QR codes stickers were put parts for identification by manual workers as per their respective shape and size features, thus ensuring synchronized raw material flow the process. However, identifying a particular type part based its different features is still challenge trained operator. Currently, in market, there exist some automation solutions solving such kind problem but are incapable...

10.1109/access.2020.3007257 article EN cc-by IEEE Access 2020-01-01

There is strong demand for real-time suspicious tracking across multiple cameras in intelligent video surveillance public areas, such as universities, airports and factories. Most criminal events show that the nature of behavior are carried out by un-known people who try to hide themselves much possible. Previous learning-based studies collected a large volume data set train learning model detect humans but failed recognize newcomers. also several feature-based aimed identify within-camera...

10.3390/s19133016 article EN cc-by Sensors 2019-07-09

This paper focuses on flood-region detection using monitoring images. However, adverse weather affects the outcome of image segmentation methods. In this paper, we present an experimental comparison outdoor visual sensing system region-growing methods with two different growing rules-namely, GrowCut and RegGro. For each rule, several tests lens-stained scenes were performed, taking into account analyzing conditions system. The influence was analyzed, highlighting their effect rules....

10.3390/s16071125 article EN cc-by Sensors 2016-07-20

Early prediction of clinical deterioration such as adverse events (AEs), improves patient safety. National Warning Score (NEWS) is widely used to predict AEs based on the aggregation 6 physiological parameters. We took same parameters features for AE using deep learning algorithms (AEP-DLA) among hospitalized adult patients. The aim this study get better performance than traditional naïve mathematical calculations by introducing novel vital sign data preprocessing schemes. retrospectively...

10.1109/access.2021.3070618 article EN cc-by IEEE Access 2021-01-01

A distinct security protocol is necessary for the exponential growth in intelligent edge devices. In particular, autonomous devices need to address significant concern function smoothly high market demand. Nevertheless, increase connected has made cloud networks more complex and suffer from information processing delay. Therefore, goal of this work design a novel server-less mutual authentication networks. The aim demonstrate an amongst smart within solution addresses applications cars,...

10.3390/s22197632 article EN cc-by Sensors 2022-10-08

Surveillance systems are everywhere deployed for criminal prevention and suspect tracking specific security events. The recognition of the target person cross multiple cameras remains a challenge because large spatio-temporal uncertainty, which means entry exit persons in unpredictable. Therefore, this study design implement software system that help users to continuous stable track same across cameras. Firstly, leverages YOLO Correlation filter suspicious single camera. features also...

10.1109/cacs47674.2019.9024367 article EN 2019-11-01

Sheet metal-based products serve as a major portion of the furniture market and maintain higher quality standards by being competitive. During industrial processes, while converting sheet metal to an end product, new defects are observed thus need be identified carefully. Recent studies have shown scratches, bumps, pollution/dust identified, but orange peel present overall challenge. So our model identifies dust using computer vision algorithms, whereas defect detection with deep learning...

10.3390/pr9050768 article EN Processes 2021-04-27

The Journal of the National Science Foundation Sri Lanka publishes results research in all aspects and Technology. journal also has a website at http://www.nsf.gov.lk/. 2021 Impact Factor: 0.682The JNSF provides immediate open access to its content on principle that making freely available public supports greater global exchange knowledge.Cover :Leatherback (a), green (b - adult & f hatchling), hawksbill (c) olive ridley (d) turtles who nest Lankan beaches, turtle crawl marks (e) by-catch...

10.4038/jnsfsr.v46i3.8485 article EN cc-by-nd Journal of the National Science Foundation of Sri Lanka 2018-09-30

This paper proposes a framework for an Image-based Flood Alarm (IFA) that includes bi-seeded region-based image segmentation the extraction of water region interest from image, as well alarm classifier identifying degree flood risk. When risk reaches predetermined threshold, response message reports to main EWS end-user decision support.

10.1109/sas.2014.6798979 article EN 2014-02-01

Severe weather conditions greatly impair the performance of outdoor imaging. In this study, two region-based image segmentation methods, Grow Cut and Region Growing (RegGro), were applied to rain scenes. This study demonstrates that accuracy depends on fog stains. severe rainfall periods, heavy reduced overall quality, both methods yielded failure. The results show are effective for segmenting objects in images captured under poor conditions. Both have unique advantages disadvantages stain...

10.1109/is3c.2014.20 article EN International Symposium on Computer, Consumer and Control 2014-06-01
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