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Ho-Jin Jo

Yonsei University · 医学

研究室紹介

Professor Ho-Jin Jo's research lab specializes in biomedical image analysis, clinical pharmacology, and neurobiological modeling, with a strong focus on aging-related health challenges and mental health in clinical populations. The lab develops advanced computational methods for medical image processing—such as texture-aware filtering and scene text detection—while also conducting population-level health studies on polypharmacy and its outcomes in elderly populations. Additionally, the lab investigates the neurobiological underpinnings of neurodevelopmental disorders using animal models, particularly in understanding connectivity disruptions in autism spectrum disorder. These interdisciplinary efforts bridge computer vision, clinical data science, and neuroscience to improve health outcomes in aging and neurodiverse populations.

medical image analysispolypharmacyneurodevelopmental disordersaging healthcomputational neuroscience

Research Overview

Papers
107
Total Citations
1,588
Papers (5y)
24
Primary Field
医学

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
24total
2022
2023
2024
2025
2026
Citations per year (5y)
181total
20222023202420252026

Selected Papers

15
1
Article|208 citations·2014
Bilateral texture filtering
Hojin Cho, Hyunjoon Lee, Henry Kang, Seungyong Lee
SJR Q1ACM Transactions on Graphics

This paper presents a novel structure-preserving image decomposition operator called bilateral texture filter . As a simple modification of the original bilateral filter [Tomasi and Manduchi 1998], it performs local patch-based analysis of texture features and incorporates its results into the range filter kernel. The central idea to ensure proper texture/structure separation is based on patch shift that captures the texture information from the most representative texture patch clear of promine

Computer Vision and Pattern RecognitionComputer Science
2
Article|118 citations·2016
Canny Text Detector: Fast and Robust Scene Text Localization Algorithm
Hojin Cho, Myungchul Sung, Bongjin Jun

This paper presents a novel scene text detection algorithm, Canny Text Detector, which takes advantage of the similarity between image edge and text for effective text localization with improved recall rate. As closely related edge pixels construct the structural information of an object, we observe that cohesive characters compose a meaningful word/sentence sharing similar properties such as spatial location, size, color, and stroke width regardless of language. However, prevalent scene text de

Computer Vision and Pattern RecognitionComputer Science
3
Article|117 citations·2007
New TIT capacitor with ZrO2/Al2O3/ZrO2 dielectrics for 60nm and below DRAMs
Hojin Cho, Young Dae Kim, Dong Su Park, Euna Lee, Cheol Hwan Park, Jun Soo Jang, Keum Bum Lee, Hai Won Kim, Young Jong Ki, Il Keun Han, Yong Wook Song
SJR Q3Solid-State Electronics
Materials ChemistryMaterials Science
4
Book Chapter|99 citations·2012
Text Image Deblurring Using Text-Specific Properties
Hojin Cho, Jue Wang, Seungyong Lee
SJR Q2Lecture notes in computer science
Computer Vision and Pattern RecognitionComputer Science
5
Article|52 citations·2022
Aging and the Prevalence of Polypharmacy and Hyper-Polypharmacy Among Older Adults in South Korea: A National Retrospective Study During 2010–2019
Hojin Cho, Jungmi Chae, Sang‐Heon Yoon, Dong‐Sook Kim
SJR Q1Frontiers in PharmacologyOA

Background: Polypharmacy has become a global health problem and is associated with adverse health outcomes in the elderly. This study evaluated the prevalence of polypharmacy and hyper-polypharmacy in elderly patients in South Korea during 2010–2019. Methods: We analyzed the outpatient care of persons aged ≥65 years covered by National Health Insurance (NHI) using NHI claims data from 2010 to 2019. Polypharmacy was defined as the use of ≥5 medications, and hyper-polypharmacy was defined as the u

Geriatrics and GerontologyMedicine
6
Article|46 citations·2017
Changes in brain metabolic connectivity underlie autistic-like social deficits in a rat model of autism spectrum disorder
Hojin Cho, Chul Hoon Kim, Elizabeth Quattrocki Knight, Hye-Won Oh, Bumhee Park, Dong Goo Kim, Hae‐Jeong Park
SJR Q1Scientific ReportsOA

Abstract The neurobiological basis of social dysfunction and the high male prevalence in autism spectrum disorder (ASD) remain poorly understood. Although network alterations presumably underlie the development of autistic-like behaviors, a clear pattern of connectivity differences specific to ASD has not yet emerged. Because the heterogeneous nature of ASD hinders investigations in human subjects, we explored brain connectivity in an etiologically homogenous rat model of ASD induced by exposure

Cognitive NeuroscienceNeuroscience
7
Article|37 citations·2014
Effect of Empathy, Resilience, Self-care on Compassion Fatigue in Oncology Nurses
Hojin Cho, Myun Sook Jung
SJR Q2Journal of Korean Academy of Nursing AdministrationOA

Purpose: The purpose of this study was to analyze the effects of empathy, resilience and self-care on compassion fatigue in oncology nurses. Methods: The study design was a descriptive survey and questionnaires were collected from December 1 to 15, 2013. Participants were 171 oncology nurses caring for cancer patients. Data was analyzed using independent t-test, Scheffetest, one-way ANOVA, Pearson correlation coefficient and hierarchical multiple regression with the SPSS/WIN 18.0 program. Result

Leadership and ManagementNursing
8
Article|35 citations·2022
Factors related to polypharmacy and hyper‐polypharmacy for the elderly: A nationwide cohort study using National Health Insurance data in South Korea
Hojin Cho, Jungmi Chae, Sang‐Heon Yoon, Dong‐Sook Kim
SJR Q1Clinical and Translational ScienceOA

Polypharmacy may cause adverse health outcomes in the elderly. This study examined the prevalence of continuous polypharmacy and hyper-polypharmacy, factors associated with polypharmacy, and the most frequently prescribed medications among older adults in South Korea. This was a retrospective observational study using National Health Insurance claims data. In total, 7,358,953 Korean elderly patients aged 65 years and older were included. Continuous polypharmacy and hyper-polypharmacy were define

Geriatrics and GerontologyMedicine
9
Article|32 citations·2014
Single‐shot High Dynamic Range Imaging Using Coded Electronic Shutter
Hojin Cho, Seon Joo Kim, Seungyong Lee
SJR Q1Computer Graphics Forum

Abstract Typical high dynamic range (HDR) imaging approaches based on multiple images have difficulties in handling moving objects and camera shakes, suffering from the ghosting effect and the loss of sharpness in the output HDR image. While there exist a variety of solutions for resolving such limitations, most of the existing algorithms are susceptible to complex motions, saturation, and occlusions. In this paper, we propose an HDR imaging approach using the coded electronic shutter which can

Computer Vision and Pattern RecognitionComputer Science
10
Book Chapter|25 citations·2014
Radial Bright Channel Prior for Single Image Vignetting Correction
Hojin Cho, Hyun Joon Lee, Seungyong Lee
SJR Q2Lecture notes in computer science
Computer Vision and Pattern RecognitionComputer Science
11
Article|24 citations·1998
Improvement of dielectric properties of (Ba,Sr)TiO3 thin films deposited by pulse injection chemical vapor deposition
Hojin Cho, Hyeong Joon Kim
SJR Q1Applied Physics Letters

( Ba,Sr)TiO 3 (BST) thin films were prepared on Pt/SiO2/Si substrates by the pulse injection chemical vapor deposition (CVD) process, in which the vapor of precursors was allowed to flow periodically into the reaction chamber. The dielectric constants of BST thin films, which were deposited by pulse injection CVD, were slightly higher than those of continuous BST thin films. In addition, the leakage currents were lowered by an order of magnitude. 35 nm thick BST thin films, deposited by pulse in

Electrical and Electronic EngineeringEngineering
12
Article|21 citations·2008
Feature Relation and Dependency Management: An Aspect-Oriented Approach
Hojin Cho, Kwan-Woo Lee, Kyo C. Kang

Product line assets must be designed so that inclusion or exclusion of variable features causes little changes to components implementing other features. In order to achieve this goal, various relationships or dependencies that variable features have with other features must be analyzed thoroughly before designing product line assets. An object-oriented approach has been proposed to manage operational dependencies between features. However, it still suffers from code scattering and tangling prob

Artificial IntelligenceComputer Science
13
Article|20 citations·2006
New TIT Capacitor with ZrO2/Al2O3/ZrO2 dielectrics for 60nm and below DRAMs
Hojin Cho, Young Dae Kim, Dong Park, Euna Lee, Cheol Park, Jun Jang, Keum Bum Lee, Hai Won Kim, Soo Chae, Young Jong Ki, Il Ki Han, Yong Wook Song
Proceedings of the European Solid State Device Research Conference

New ZrO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> /Al <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> /ZrO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> (ZAZ) dielectric film was successfully developed for DRAM capacitor d

Electrical and Electronic EngineeringEngineering
14
Article|20 citations·2009
First in human evaluation of a newly developed integrin binding PET tracer, 18F-RGD-K5 in patients with breast cancer: Comparison with 18F-FDG uptake pattern and microvessel density
Hojin Cho, Jong Doo Lee, Jun Yong Park, Mijin Yun, Won Jun Kang, Joseph C. Walsh, Hartmuth C. Kolb, Jinjun Zhang

1910 Objectives The purpose of this study was to evaluate a newly developed integrin binding agent, 18F-RGD-K5 (alternative to 18F-Galacto-RGD) in breast cancer and compared with 18F-FDG PET scan. The uptake pattern of 18F-RGD-K5 was also compared with microvessel density in tumor specimen. Methods Twelve patients with primary or metastatic breast cancer were enrolled. 18F-FDG PET scan was performed within ±7 days of 18F-RGD-K5 PET scan. The maximum SUV within the lesions were measured in each s

Immunology and AllergyMedicine
15
Article|18 citations·2008
Architecture Patterns for Mobile Games Product Lines
Hojin Cho, Jinseok Yang
International Conference on Advanced Communication Technology

Product line software engineering (PLSE) is a promising method for software reuse. For the key of success, a reusable and adaptable architecture design is necessary. In domain of mobile games product lines, architectures have some common structures because of circumstance properties of the domain and business constraints. In this paper, we classify them as architecture patterns. By doing this, we can expect increasing portability, reusability, adaptability, maintainability, and eventually produc

Artificial IntelligenceComputer Science

Research Areas

Computer Vision and Pattern RecognitionElectrical and Electronic EngineeringCivil and Structural EngineeringRadiology, Nuclear Medicine and ImagingEndocrinology, Diabetes and MetabolismHepatology

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