Researchers

Laboratory members

김하진 (Hajin Kim)

Ph.D. Candidate (Full time researcher)
가천대학교 보건과학과 석사 졸업 (2024년)
가천대학교 방사선학과 학사 졸업 (2023년)
Research interests: Medical image segmentation & denoising, CT angiography, Deep learning

Research achievements

[석사학위논문] Application and optimization of the U-Net++ model for cerebral artery segmentation based on computed tomographic angiography images.
[연구과제 수주 (PI)] 전산화단층촬영 영상 기반 혼합형 플라크의 정량화 기술이 적용된 관상동맥 질환의 진행도 예측 모델 개발, 한국연구재단 학문후속세대지원사업 박사과정생 연구장려금, 50,000,000원,
[SCIE paper first author] Hajin Kim, Kang-Hyeon Seo, Kyuseok Kim, Jina Shim, Youngjin Lee, Application and optimization of the U-Net++ model for cerebral artery segmentation based on computed tomographic angiography images, European Journal of Radiology, 2025.
[SCIE paper first author] Hajin Kim, Juho Park, Jina Shim, Youngjin Lee, Application and optimization of fast non-local means noise reduction algorithm in pediatric abdominal virtual monoenergetic images, Electronics, 2024.
[SCIE paper first author] Hajin Kim, Bo Kyung Cha, Kyuseok Kim, Youngjin Lee, Application of adaptive search window-based nonlocal total variation filter in low-dose computed tomography images: A phantom study, Applied Sciences, 2024.
[SCIE paper first author] Hajin Kim, Jun-Seon Choi, Youngjin Lee, Assessment of Feldkamp-Davis-Kress reconstruction parameters on overall image quality in cone beam computed tomography, Applied Sciences, 2024.
[SCIE paper first author] Hajin Kim, Sewon Lim, Minji Park, Kyuseok Kim, Seong-Hyeon Kang, Youngjin Lee, Optimization of fast non-local means noise reduction algorithm in computed tomographic images using 3D printed phantom, Diagnostics, 2024.
[KCI paper first author] Hajin Kim, Youngjin Lee, Comparative evaluation of filters for speckle noise reduction in clinical liver ultrasound image, Journal of Radiological Science and Technology, 2023.

임세원 (Sewon Lim)

Ph.D. Candidate (Full time researcher)
가천대학교 보건과학과 석사 졸업 (2024년)
가천대학교 방사선학과 학사 졸업 (2023년)
Research interests: Clinical neurology, Medical image segmentation & denoising, Deep learning

Research achievements

[석사학위논문] Longitudinal association of DTI-ALPS index with amyloid beta deposition and cognition.
[연구과제 수주 (PI)] 가상 격자를 사용한 유방 X선 영상의 노이즈 증폭 현상 극복을 위한 딥러닝 기반 영상복원 framework 개발, 한국여성과학기술육성재단 주관 여대학원생 공학연구팀제 지원사업, 8,000,000원,
[SCIE paper first author] Sewon Lim, Hajin Kim, Kang-Hyeon Seo, Youngjin Lee, Modeling of Severity Classification Algorithm Using Abdominal Aortic Aneurysm Computed Tomography Image Segmentation Based on U-Net with Improved Noise Reduction Performance, Sensors, 2025.
[SCIE paper first author] Sewon Lim, Hajin Kim, Youngjin Lee, Longitudinal tract-based spatial statistics analysis of white matter diffusivity changes and cognitive decline during the transition from MCI to Alzheimer’s disease, PLoS One, 2025.
[SCIE paper first author] Sewon Lim, Minji Park, Hajin Kim, Seong-Hyeon Kang, Youngjin Lee, Quantitative analysis of fast non-local means algorithm smoothing factor impact on lung segmentation accuracy in computed tomography images, Radiation Physics and Chemistry, 2024.
[Scopus paper first author] Sewon Lim, Hayun Nam, Hyemin Shin, Sein Jeong, Kyuseok Kim, Youngjin Lee, Noise reduction for virtual grid using generative adversarial network in breast X-ray images, Journal of Imaging, 2023.
[SCIE paper first author] Sewon Lim, Minji Park, Hajin Kim, Seong-Hyeon Kang, Kyuseok Kim, Youngjin Lee, Optimization of median modified Wiener filter for improving lung segmentation performance in low-dose computed tomography images, Applied Sciences, 2023.
[KCI paper first author] Sewon Lim, Youngjin Lee, Substitutability of Noise Reduction Algorithm based Conventional Thresholding Technique to U-Net Model for Pancreas Segmentation, Journal of the Korean Society of Radiology, 2023.

박민지 (Minji Park)

Ph.D. Candidate (Full time researcher)
前 덴티움 R&D 연구소 연구원
가천대학교 보건과학과 석사 졸업 (2023년)
가천대학교 방사선학과 학사 졸업 (2021년)
Research interests: X-ray & CT imaging, MR image processing

Research achievements

[석사학위논문] The optimization of block-matching and 3D filtering in magnetic resonance imaging.
[연구과제 수주 (PI)] CsI 물질 기반의 개선된 전신검사용 X-선 검출기시스템 개발 및 성능평가, 한국여성과학기술육성재단 주관 여대학원생 공학연구팀제 지원사업, 8,000,000원,
[SCIE paper first author] Minji Park, Sewon Lim, Hajin Kim, Jae-Young Kim, Youngjin Lee, Optimization of smoothing parameter for block matching and 3D filtering algorithm in low-dose chest and abdominal computed tomography images, Applied Radiation and Isotopes, 2024.
[SCIE paper first author] Minji Park, Seong-Hyeon Kang, Kyuseok Kim, Youngjin Lee, Simulation and experimental studies of optimization of σ-value for block-matching and 3D filtering algorithm in magnetic resonance images, Applied Sciences, 2023.
[SCIE paper first author] Bongju Han, Minji Park, Kyuseok Kim, Youngjin Lee, Characterization of Flexible Amorphous Silicon Thin-Film Transistor-Based Detectors with Positive-Intrinsic-Negative Diode in Radiography, Diagnostics, 2022.
[SCIE paper first author] Minji Park, Seohyeon Lee, Serin Choi, Soeun Lee, Seonyeong Han, Hyejin Lee, Seong-Hyeon Kang, Youngjin Lee, Deep learning-based noise reduction algorithm using patch group technique in cadmium zinc telluride fusion imaging system: a Monte Carlo simulation study, Optik, 2020.

박성모 (Soungmo Park)

Ph.D. Candidate
現 명지병원 영상의학과 근무
가천대학교 보건과학과 석사 졸업 (2024년)
가천대학교 방사선학과 학사 졸업 (2018년)
Research interests: MR imaging, MR image processing

Research achievements

[석사학위논문] The optimization of non-local means algorithm for breast diffusion magnetic resonance images using self-producted phantom.
[SCIE paper first author] Soungmo Park, Seong-Hyeon Kang, Youngjin Lee, Optimization of the Non-Local Means Algorithm for Breast Diffusion-Weighted Magnetic Resonance Imaging Using a 3D-Printed Breast-Mimicking Phantom, Life, 2025.

이다혜 (Dahye Lee)

Ph.D. Candidate
現 에스피엘 방사선안전관리책임자
가천대학교 보건과학과 석사 졸업 (2025년)
동남보건대학교 방사선학과 학사 졸업 (2018년)
Research interests: Radiation shielding, Radiation protection, Monte Carlo simulation

Research achievements

[석사학위논문] Radiological Characterization Inside the Bunker of a 10 MeV Electron Beam Accelerator.

이수진 석사과정 연구원

M.S. Candidate
現 강북삼성병원 영상의학과 근무
前 원주세브란스병원 영상의학과 근무
가천대학교 방사선학과 학사 졸업 (2022년)
Research interests: Clinical CT, CT imaging

김지현 석사과정 연구원

M.S. Candidate
現 서울아산병원 영상의학과 근무
가천대학교 방사선학과 학사 졸업 (2021년)
Research interests:

임준 (Jun Lim)

M.S. Candidate
現 삼성서울병원 영상의학과 근무
가천대학교 방사선학과 학사 졸업 (2023년)
Research interests: MRI simulation, Monte Carlo simulation, X-ray imaging

Research achievements

[SCIE paper first author] Jun Lim, Seong-Hyeon Kang, Chan Rok Park, Youngjin Lee, Performance Evaluation of Image Characteristics by Changing Parameters in Brain T2 Weighted Neuroimages using MRiLab Simulation, Journal of Magnetics, 2021.
[학회발표수상] 포스터 장려상, 대한방사선사학술대회 대한디지털의료영상학회 세션, 2020. 10. 31. (발표제목: Tendency evaluation of the image characteristics according to change of the flip angle in brain T2 weighted images: simulation study)
[교내 수상] 자랑스러운 가천인상 수상 (SCIE 논문 출판 공적), 2021.

Undergraduate students

문장원 (Jangwon Moon)

Undergraduate Student
Research interests: Medical image denoising, Deep learning

Research achievements

[KCI paper first author] Jangwon Moon, Seong-Hyeon Kang, Hajin Kim, Youngjin Lee, Low-Dose Abdominal CT Image Noise Reduction Using Residual-Based Median Adaptive Gaussian Filtering Algorithms: Performance Evaluation and Optimization, Journal of Radiological Science and Technology, 2025.
[경진대회수상] 장려상, 한국방사선진흥협회 주관 제3회 방사선 기술 활용 창의융합 아이디어 경진대회, 2025. 08. 26.
[학회발표수상] 우수 포스터상, 대한방사선과학회 학술대회, 2025. 05. 10. (발표제목: Optimization of median-Gaussian filters for X-ray-based medical imaging: a simulation study)

Alumni

서강현 (박사 졸업)

가천대학교 보건과학과 박사 졸업 (2025년)
가천대학교 보건과학과 석사 졸업 (2022년)
을지대학교 방사선학과 학사 졸업 (2017년)
現 인천한림병원 혈관조영실 근무
現 가천대학교 방사선학과 외래교수

Research achievements

[박사학위논문] Study of cerebral artery segmentation with projection data in computed tomographic angiography using DeepLab V3+.
[석사학위논문] Optimization of smoothing factor for fast non-local means algorithm in high pitch based low-dose CT images with tin-filter.
[SCIE paper first author] Kang-Hyeon Seo, Hajin Kim, Kyuseok Kim, Youngjin Lee, Cerebral arteries segmentation based on projection domain in single exposure computed tomographic angiography, Radiation Physics and Chemistry, under review.
[SCIE paper first author] Kang-Hyeon Seo, Seong-Hyeon Kang, Jina Shim, Youngjin Lee, Optimization of smoothing factor for fast non-local means algorithm in high pitch based low-dose computed tomography images with tin-filter, Radiation Physics and Chemistry, 2023.
[학회발표수상] 학술발표 대상, 대한방사선사협회 인천광역시회 미추홀 학술대회, 2024. 04. 20. (발표제목: 우관상동맥 조영영상에서 Laplacian 필터와 비지역적평균 알고리즘의 유용성 평가)
[학회발표수상] 학술발표 대상, 대한방사선사학술대회 대한디지털의료영상학회 세션, 2021. 11. 06. (발표제목: Denoising efficiency analysis by changing smoothing factor for fast non-local means algorithm in high pitch-based low-dose CT images with tin filter)

김민경 (박사 졸업)

가천대학교 보건과학과 박사 졸업 (2025년)
을지대학교 방사선학과 석사 졸업 (2018년)
연세대학교 방사선학과 학사 졸업 (2008년)
現 동부제일병원 sonographer
現 동남보건대학교 방사선학과 겸임교수
現 가천대학교 방사선학과 외래교수
前 광혜병원 sonographer

Research achievements

[박사학위논문] Quantitative analysis method for stone detection in diagnostic ultrasound images of kidney and gallbladder based on Gray Level Co-Occurrence Matrix (GLCM).
[석사학위논문] Study on Development of Wavelet Transform Algorithm based on Patch to Remove Near Field Clutter (NFC) in Echocardiography.
[SCIE paper first author] Minkyoung Kim, Kyuseok Kim, Hyun-Woo Jeong, Youngjin Lee, Quantitative Evaluation of Kidney and Gallbladder Stones by Texture Analysis Using Gray Level Co-Occurrence Matrix Based on Diagnostic Ultrasound Images, Journal of Clinical Medicine, 2025.
[SCIE paper first author] Minkyoung Kim, Dong-Kyoon Han, Youngjin Lee, Near-field clutter artifact reduction algorithm based on wavelet thresholding method in echocardiography using 3D printed cardiac phantom, Journal of the Korean Physical Society, 2022.

강성현 (박사 졸업)

가천대학교 보건과학과 박사 졸업 (2022년)
을지대학교 보건과학과 석사 졸업 (2019년)
을지대학교 방사선학과 학사 졸업 (2017년)
現 가천대학교 휴먼보건과학융합연구소 박사 후 연구원
現 가천대학교 방사선학과 등 외래교수
前 을지대학교 의료공학과 연구교수

Research achievements

[박사학위논문] Segmentation for cerebral arteries with deep-learning in computed tomography angiography.
[석사학위논문] Study on application for total variation noise reduction algorithm with phantom using 3D-printer in computed tomography.
[2022년 SCIE paper] Seong-Hyeon Kang, Minji Park, Myeong Seong Yoon, Youngjin Lee, Quantitative evaluation of total variation noise reduction algorithm in CT images using 3D‑printed customized phantom for femur diagnosis, Journal of the Korean Physical Society 등 3편.
[2021년 SCIE paper] Sunguk Ju, Seong-Hyeon Kang, Youngjin Lee, Optimization of mask size for median-modified Wiener filter according to matrix size of computed tomography images, Nuclear Instruments and Methods in Physics Research A 등 5편.
[2020년 SCIE paper] Seong-Hyeon Kang, Myeong-Seong Yoon, Dong-Kyoon Han, Youngjin Lee, Total variation noise reduction algorithm in computed tomography image with custom-built phantom using 3D-printer, Radiation Physics and Chemistry 등 7편.

박찬록 (박사 후 연구원)

現 을지대학교 방사선학과 전임교수
前 전주대학교 방사선학과 전임교수
前 서울대학교병원 핵의학과 근무

Research achievements

[SCIE paper first author] Chan Rok Park, Seong-Hyeon Kang, Youngjin Lee, Median modified Wiener filter for improving the image quality of gamma camera images, Nuclear Engineering and Technology, 2020.
[SCIE paper first author] Chan Rok Park, Seong-Hyeon Kang, Youngjin Lee, Optimization of mask size with median modified Wiener filter algorithm for gamma images using pixelated semiconductor detector: Monte Carlo simulation study, Nuclear Engineering and Technology, 2020.
[SCIE paper co-author] Bae-Guen Kim, Seong-Hyeon Kang, Chan Rok Park, Hyun-Woo Jeong, Youngjin Lee, Noise Level and Similarity Analysis for Computed Tomographic Thoracic Image with Fast Non-Local Means Denoising Algorithm, Applied Sciences, 2020.
[SCIE paper co-author] Min Young Jang, Chan Rok Park, Seong-Hyeon Kang, Youngjin Lee, Experimental study of the fast non-local means noise reduction algorithm using the Hoffman 3D brain phantom in nuclear medicine SPECT image, Optik, 2020.

김리나 (석사 졸업)

가천대학교 보건과학과 석사 졸업 (2024년)
을지대학교 방사선학과 학사 졸업 (2016년)
現 순천향대학교 부천병원 Sonographer
前 분당차병원 Sonographer
前 GE Healthcare 근무

Research achievements

[석사학위논문] Application of deep learning-based multi-scale deep encoder-decoder with phase congruency algorithm to improve diagnostic ultrasound image quality.
[SCIE paper first author] Ryeonhui Kim, Kyuseok Kim, Youngjin Lee, A Multiscale Deep Encoder–Decoder with Phase Congruency Algorithm Based on Deep Learning for Improving Diagnostic Ultrasound Image Quality, Applied Sciences, 2023.
[학회발표수상] 학술발표 우수상, 대한방사선사학술대회 대한초음파의료영상학회 세션, 2023. 10. 28. (발표제목: 딥러닝 기반 multi-scale deep encoder-decoder with phase congruency (MSDEPC) 알고리즘의 초음파 영상 적용 가능성 평가)

최혜란 (석사 졸업)

가천대학교 보건과학과 석사 졸업 (2023년)
을지대학교 방사선학과 학사 졸업 (2019년)
前 순천향대학교 서울병원 방사선종양학과 근무
前 이대서울병원 영상의학과 근무
前 원주세브란스병원 영상의학과 근무

Research achievements

[석사학위논문] Application of magnetic resonance imaging-based U-Net algorithm to improve Alzheimer’s disease diagnosis rate.

모윤희 (석사 졸업)

가천대학교 보건과학과 석사 졸업 (2022년)
을지대학교 방사선학과 학사 졸업 (2016년)
現 부천성모병원 영상의학과 근무
前 서울대학교병원 영상의학과 근무

Research achievements

[석사학위논문] Optimization and performance evaluation of the median-modified Wiener filter algorithm in breast 2D x-ray imaging.
[SCIE paper first author] Yunhee Mo, Seong-Hyeon Kang, Youngjin Lee, Optimization and Performance Evaluation of the Median Modified Wiener Filter Algorithm in Breast Electromagnetic X-ray Image, Journal of Magnetics, 2023.
[학회발표수상] 학술발표 장려상, 대한방사선사학술대회 대한디지털의료영상학회 세션, 2021. 11. 06. (발표제목: Optimization of the median modified Wiener filter algorithm for digital mammography: A simulation study)

박주호 (학사 졸업, 19학번)

가천대학교 방사선학과 학사 졸업 (2025년)
現 고려대학교 안산병원 핵의학과 근무
前 서울성모병원 영상의학과 근무

Research achievements

[SCIE paper co-author] Hajin Kim, Juho Park, Jina Shim, Youngjin Lee, Application and Optimization of a Fast Non-Local Means Noise Reduction Algorithm in Pediatric Abdominal Virtual Monoenergetic Images, Electronics, 2024.
[학회발표수상] 포스터 발표 장려상, 대한영상의학기술학 춘계학술대회, 2023. 03. 04. (발표제목: 다양한 Speckle 잡음 강도 기반 시뮬레이션 된 경동맥 초음파 영상에서의 Frost 필터 적용)

이도화 (학사 졸업, 17학번)

가천대학교 방사선학과 학사 졸업 (2023년)
現 은평성모병원 핵의학과 근무
前 가천대학교 길병원 핵의학과 근무

Research achievements

[SCIE paper first author] Dohwa Lee, Chang-Soo Yun, Seong-Hyeon Kang, Minji Park, Youngjin Lee, Performance evaluation of 3D median modified Wiener filter in brain T1-weighted magnetic resonance imaging, Nuclear Instruments and Methods in Physics Research A, 2023.
[SCIE paper co-author] Haneul Kim, Jaehong Jung, Hyunseo Jung, Jibeom Jeong, Dohwa Lee, Hyun-Woo Jeong, Youngjin Lee, Comparison of Jaw Mode and Field Width for Left-Breast Cancer Using TomoDirect Three-Dimensional Conformal Radiation Therapy: A Phantom Study, Healthcare, 2022.
[SCIE paper co-author] Jung-Kyun Park, Seong-Hyeon Kang, Minji Park, Dohwa Lee, Kyuseok Kim, Youngjin Lee, Noise level and similarity evaluations of non-local means algorithm in chest digital tomosynthesis X-ray imaging system: An experimental study, Nuclear Instruments and Methods in Physics Research A, 2022.
[KCI paper first author] Dohwa Lee, Minji Park, Seong-Hyeon Kang, Youngjin Lee, Analysis of Signal and Noise Characteristics of Brain T2-Weighted Image with Gradient-Echo Pulse Sequence by Changing Echo Time Based on MRiLab Simulation: Pilot Study, Journal of Korean Society of MR Technologyy, 2021.
[학회발표수상] 최우수 구연상, 대한디지털의료영상학회 춘계학술대회, 2022. 04. 16. (발표제목: 초고해상도 전산화단층촬영 영상 획득을 위한 convolutional neural network 기반 very deep super-resolution (VDSR) 알고리즘 유용성 평가)
[학회발표수상] 우수 구연상, 대한디지털의료영상학회 춘계학술대회, 2021. 05. 22. (발표제목: 흉부 CT 영상의 해상도 개선을 위한 U-net 기반 딥러닝 알고리즘의 유용성 평가)
[교내수상] 자랑스러운 가천인상 수상 (SCIE 논문 출판 공적), 2022.
[교내수상] 가천인재상 수상 (KCI 논문 출판 공적), 2022.

김서한 (학사 졸업, 15학번)

가천대학교 방사선학과 학사 졸업 (2022년)
카톨릭대학교 의과대학 의공학교실 박사과정

Research achievements

[SCIE paper first author] Bae-Guen Kim, Seong-Hyeon Kang, Chan Rok Park, Hyun-Woo Jeong, Youngjin Lee, Noise Level and Similarity Analysis for Computed Tomographic Thoracic Image with Fast Non-Local Means Denoising Algorithm, Applied Sciences, 2020.
[학회발표수상] 포스터 장려상, 대한방사선사학술대회 대한디지털의료영상학회 세션, 2020. 10. 31. (발표제목: A study on the application of fast non-local means (FNLM) denoising algorithm to Chest Image Using FASH phantom)
[교내 수상] 자랑스러운 가천인상 수상 (SCIE 논문 출판 공적), 2020.

박수진 (학사 졸업, 17학번)

가천대학교 방사선학과 학사 졸업 (2021년)
경북대학교병원 영상의학과 근무

Research achievements

[Korean paper first author] Sujin Park, Youngjin Lee, Point source image acquirement and performance evaluation with respect to distance based on E-cam γ-camera: Monte Carlo simulation study, Korean Journal of Digital Imaging in Medicine, 2020.
[학회발표수상] 최우수 포스터 발표상, 대한방사선사학술대회 대한디지털의료영상학회 세션, 2020. 10. 31. (발표제목: Feasibility of median filter for noise reduction in T1-weighted MR image: A simulation study)
[교내 수상] 가천인재상 수상 (대한방사선사학술대회 최우수 포스터 발표상 수상 공적), 2020.

최동혁 (학사 졸업, 15학번)

연세대학교 의과대학 박사 졸업 (2025년)
가천대학교 방사선학과 학사 졸업 (2021년)
슬라이스마인드 대표

Research achievements

[SCIE paper first author] Donghyeok Choi, Seong-Hyeon Kang, Chan Rok Park, Youngjin Lee, Median modified Wiener filter noise reduction algorithm for T2-weighted brain images with magnetic resonance imaging, Journal of Magnetics, 2021.
[KCI paper first author] Donghyeok Choi, Jinhong Kim, Jongho Choi, Seong-Hyeon Kang, Youngjin Lee, Image Optimization of Fast Non Local Means Noise Reduction Algorithm using Various Filtering Factors with Human Anthropomorphic Phantom : a Simulation Study, Journal of the Korean Society of Radiology, 2019.
[학회발표수상] 우수 논문상, 대한방사선사협회 대한영상의학기술학회 춘계학술대회, 2019. 03. 02. (발표제목: 고효율 Fast non-local means 노이즈 제거 알고리즘의 filtering factor 변화에 따른 복부 X-선 영상 특성 평가: 시뮬레이션 연구)
[교내 수상] 가천인재상 수상 (원자력 방사선 프리젠테이션 경진대회 최우수상 공적), 2020.
[교내 수상] 자랑스러운 가천인상 수상 (SCIE 논문 작성 공적), 2020.

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