Ju-Hwan Lee

ORCID: 0000-0002-9368-3220
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About
Contact & Profiles
Research Areas
  • Tactile and Sensory Interactions
  • Viral gastroenteritis research and epidemiology
  • Color perception and design
  • Human-Automation Interaction and Safety
  • Viral Infections and Immunology Research
  • Virtual Reality Applications and Impacts
  • Multisensory perception and integration
  • Interactive and Immersive Displays
  • Coronary Interventions and Diagnostics
  • Optical Coherence Tomography Applications
  • Veterinary Oncology Research
  • Optical measurement and interference techniques
  • Industrial Vision Systems and Defect Detection
  • Advanced Vision and Imaging
  • Cardiovascular Disease and Adiposity
  • Visual perception and processing mechanisms
  • Cardiac Imaging and Diagnostics
  • Spatial Cognition and Navigation
  • Advanced Optical Sensing Technologies
  • Sarcoma Diagnosis and Treatment
  • Internet of Things and Social Network Interactions
  • Green IT and Sustainability
  • Animal Virus Infections Studies
  • Innovation in Digital Healthcare Systems
  • Image Retrieval and Classification Techniques

Case Western Reserve University
2019-2025

Chonnam National University
2011-2024

Korea Aerospace University
2023

Kyungpook National University
2017-2022

Wonkwang University
2020

Korea University of Technology and Education
2020

Chonnam National University Hospital
2013-2019

Seoul Media Institute of Technology
2011-2018

Rice University
2017

Colorado State University
2017

Major calcifications are of great concern when performing percutaneous coronary interventions because they inhibit proper stent deployment. We created a comprehensive software to segment in intravascular optical coherence tomography (IVOCT) images and calculate their impact using the stent-deployment calcification score, as reported by Fujino et al. segmented vascular lumen pretrained SegNet, convolutional neural network, which was refined for our task. cleaned segmentation results...

10.1117/1.jmi.6.4.045002 article EN cc-by Journal of Medical Imaging 2019-12-27

Abstract Epicardial adipose tissue volume (EAT) has been linked to coronary artery disease and the risk of major adverse cardiac events. As manual quantification EAT is time-consuming, requires specialized training, prone human error, we developed a deep learning method (DeepFat) for automatic assessment on non-contrast low-dose CT calcium score images. Our DeepFat intuitively segmented enclosed by pericardial sac axial slices, using two preprocessing steps. First, applied...

10.1038/s41598-022-06351-z article EN cc-by Scientific Reports 2022-02-10

PurposeCoronary artery disease (CAD) is a leading cause of morbidity and mortality worldwide, with coronary computed tomography angiography (CCTA) playing crucial role in its diagnosis. The mean Hounsfield unit (HU) pericoronary adipose tissue (PCAT) linked to cardiovascular risk. We utilized self-supervised learning framework (SSL) improve the accuracy generalizability segmentation on CCTA volumes while addressing limitations small-annotated datasets.ApproachWe pretraining followed by...

10.1117/1.jmi.12.1.016002 article EN Journal of Medical Imaging 2025-02-17

The last few years have seen the release of an increasing number new IT-related devices into marketplace that started to utilize tactile feedback. These include those incorporating a touch screen make multimodal feedback delivery two or more sensory modalities possible. commonly-held view is use such (or multisensory) feedback, involving presentation information ought, if anything, improve usability, performance, and satisfaction interface. In particular, especially beneficial effect might...

10.14236/ewic/hci2008.18 article EN cc-by Electronic workshops in computing 2008-09-01

Abstract Background Since rotavirus is one of the leading pathogens that cause severe gastroenteritis and represents a serious threat to human animal health, researchers have been searching for cheap, safe, effective anti-rotaviral drugs. There widespread interest in using natural products as antiviral agents, among them, licorice derived from Glycyrrhiza spp. has exerted properties against several viruses. In this study, efficacy uralensis extract (GUE) an cheaper remedy without...

10.1186/1743-422x-9-310 article EN cc-by Virology Journal 2012-12-01

Sapelovirus A (SV-A), formerly known as porcine sapelovirus a member of new genus , is to cause enteritis, pneumonia, polioencephalomyelitis and reproductive disorders in pigs. We have recently identified α2,3-linked sialic acid on GD1a ganglioside functional SV-A receptor rich the cells pigs chickens. However, role viral pathogenesis remains elusive. Here, we demonstrated that Korean strain could induce diarrhoea intestinal pathology piglets but not chicks. Moreover, this had mild...

10.1099/jgv.0.000571 article EN cc-by Journal of General Virology 2016-08-03

Despite the impact of bovine group A rotaviruses (GARVs) as economically important and zoonotic pathogens, there is a scarcity data on cross-species pathogenicity extra-intestinal spread reassortant GARVs. During course characterizing genotypes all 11 genomic segments GARVs isolated from diarrheic calves in South Korea, unique G6P[7] GARV strain (KJ9-1) was isolated. The harbors five bovine-like gene (VP7: G6; VP6: I2; VP1: R2; VP3: M2; NSP2: N2, NSP4: E2), porcine-like (VP4: P[7]; NSP1: A1;...

10.1016/j.vetmic.2011.05.017 article EN cc-by-nc-nd Veterinary Microbiology 2011-05-22

Abstract Intravascular optical coherence tomography (IVOCT) is used to assess stent tissue coverage and malapposition in evaluation trials. We developed the OCT Image Visualization Analysis Toolkit for Stent (OCTivat-Stent), highly automated analysis of IVOCT pullbacks. Algorithms automatically detected guidewire, lumen boundary, struts; determined presence each strut; estimated contour comparison area. Strut-level thickness, area, area were quantified. The software was analyze 292...

10.1038/s41598-020-59212-y article EN cc-by Scientific Reports 2020-02-07

Calibration between Lidar sensor and RGB cameras can be applied to various fields such as object recognition tracking, 2D-3D mapping, simultaneous localization mapping (SLAM). Different methods for calibrating have been proposed using special 3D markers or calibration patterns. However, most of these disadvantages longer processing time, experimental constraints entire pattern must appear within the scan range Lidar. In this paper, we propose a simple fast method multiple sphere object.

10.1109/mfi.2017.8170408 article EN 2017-11-01

Abstract Direct interspecies transmissions of group A rotaviruses (RVA) have been reported under natural conditions. However, the pathogenicity RVA has never directly compared in homologous and heterologous hosts. The bovine RVA/Cow-tc/KOR/K5/2004/G5P[7] strain, which was shown to possess a typical porcine-like genotype constellation similar that G5P[7] prototype RVA/Pig-tc/USA/OSU/1977/G5P9[7] examined for its with porcine RVA/Pig-tc/KOR/K71/2006/G5P[7] strain possessing same constellation....

10.1186/1297-9716-44-88 article EN cc-by Veterinary Research 2013-10-01

[Purpose] The main purpose of this study was to compare the effects core stabilization and chest mobilization exercises on pulmonary function expansion in chronic stroke patients. [Subjects Methods] Thirty patients were randomly divided into two groups: a exercise group (n=15) (n=15). Each performed 3 times per week for 30 minutes 4 weeks, when breathing measured both groups. [Results] There significant increases forced vital capacity expiratory volume 1 second before after intervention....

10.1589/jpts.29.1144 article EN Journal of Physical Therapy Science 2017-01-01

Porcine rotaviruses cause severe economic losses in the Korean swine industry due to G- and P-genotype mismatches between predominant field vaccine strains. Here, we developed a live attenuated trivalent porcine group A rotavirus using 80 cell culture passages of representative strains G8P[7] 174-1, G9P[23] PRG942, G5P[7] K71. Vaccination with or its individual components induced no diarrhea during first 2 weeks post-vaccination, i.e., vaccines were attenuated. Challenge trivalent-vaccinated...

10.1186/s13567-018-0619-6 article EN cc-by Veterinary Research 2019-01-07

Vehicle area network (VAN) communications and related services are getting more pervasive [1]. However, even though user-centered design has been emphasized, VAN have often developed through a technology-driven approach. This paper presents cross-cultural survey results on in three different countries: Austria, USA, South Korea. The current research compared the state-of-the-art of drivers' in-vehicle technology use investigated their needs wants for plausible new near future. Further, we...

10.1145/2390256.2390283 article EN 2012-10-17

A number of Augmented Reality (AR) frameworks are now available and used to support the development mobile AR applications. In this paper, we measure compare recognition performance commercial identify potential issues that can occur in real application environment. For experiments, assume a situation which consumer purchases food products grocery store consider an scenario content related is displayed on smartphone screen by recognizing such products. We use four metrics selected...

10.3390/app10041547 article EN cc-by Applied Sciences 2020-02-24
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