I am a Ph.D. student in Computer Sciences at the WISION Lab, University of Wisconsin–Madison, advised by Prof. Mohit Gupta. My research interests include computational imaging, computer vision and statistical signal processing. Currently, I am working on sensor fusion for robotics applications.

Before that, I worked for LG Innotek Company developing direct Time-of-Flight (dToF) SPAD/SiPM LiDARs DSP software.

I obtained my M.S. degree in Mechanical Engineering at Korea Advanced Institute of Science and Technology (KAIST), under the supervision of Prof. Yong-Hwa Park. I did my B.S. in Mechanical Engineering at Yonsei University.

Education

University of Wisconsin–Madison, Madison, WI, USA Ph.D. in Computer Sciences

Aug. 2025 - Present

KAIST, Daejeon, Republic of Korea M.S. in Mechanical Engineering

Sep. 2021 - Aug. 2023

Yonsei University, Seoul, Republic of Korea B.S. in Mechanical Engineering - Military Service (2015-2017)

Mar. 2014 - Aug. 2021

Publications

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Thermal-Infrared Remote-Target Detection System for Maritime Rescue Using 3-D Game-Based Data Augmentation With GAN
Sungjin Cheong, Wonhu Jung, Yoon Seop Lim, Yong-Hwa Park
IEEE Transactions on Geoscience and Remote Sensing (2024, IF: 7.5)

[Link] [Details]

LiDAR Blooming Artifacts Estimation Method Induced by Retro-Reflectance With Synthetic Data Modeling and Deep Learning
Sungjin Cheong, Jusung Ha
IEEE International Conference on Consumer Electronics-Asia (ICCE-Asia) (2024)

[Link] [Details]

Infrared Image-Based Remote Target Detection for Maritime Rescue Utilizing a Deep Learning Network and Data Augmentation
Sungjin Cheong, Yoon Seop Lim, Wonho Jung, Yong-Hwa Park
Proc. of SPIE, (2023)

[Link] [Details]

MEMS-Based Indirect Time-of-Flight Scanning LiDAR With Parallel-Phase Demodulation and Multipath Interference Suppression
Sunghyun Lee, Yoon Seop Lim, Sungjin Cheong, Yong-Hwa Park
Proc. of SPIE, (2023)

[Link] [Details]

A Long-Distance 3D Face Recognition Architecture Utilizing MEMS-Based Region-Scanning LiDAR
Yoon Seop Lim, Sunghyun Lee, Sungjin Cheong, Yong-Hwa Park
Proc. of SPIE, (2023)

[Link] [Details]

Head Pose Estimation Method Using Depth Camera Based on 3D Point Cloud
Sungjin Cheong, Sunghyun Lee, Yoon Seop Lim, Yong-Hwa Park
Conference of The Korean Society of Mechanical Engineers, (2022)

[Link] [Details]

Validation of Simulation Model for 3D Indirect Time-of-Flight Sensor
Sunghyun Lee, Yoon Seop Lim, Sungjin Cheong, Yong-Hwa Park
Conference of The Korean Society of Mechanical Engineers, (2022)

[Link] [Details]

Infrared Small Object Detection Based on Histogram Transformation
Sungjin Cheong, Wonho Jung, Yong-Hwa Park
Conference of The Korean Society of Mechanical Engineers, (2022)

[Link]

Depth Image Super Resolution Method for Time-of-Flight Camera Using Single Image Depth Estimation
Yoon Seop Lim, Sunghyun Lee, Sungjin Cheong, Yong-Hwa Park
Conference of The Korean Society of Mechanical Engineers, (2022)

[Link] [Details]

Depth Error Correction of 3D Scanning Sensor Using Machine Learning
Sunghyun Lee, Yoon Seop Lim, Sungjin Cheong, Yong-Hwa Park
Conference of The Korean Society of Mechanical Engineers, (2022)

[Link] [Details]

# Past Projects (~2024) ---

Educational Content for Autonomous Driving with CARLA
Divine Technology Inc., Seoul, Republic of Korea

Achieved Outcomes: Produced online educational material and corresponding CARLA simulation practice code targeted to undergraduate and graduate school students, consisting of perception, decision, and control.
(Role: Camera, LiDAR perception part including lane detection, calibration, 2D/3D object detection, tracking etc.)
[Link]

Radar, LiDAR, and Camera Sensor Integrated Platform
LG Innotek Inc., Seoul, Republic of Korea

Achieved Outcomes: Develop integrated automotive sensors software platform.
(Role: (Full) 3D data processing, LiDAR noise filtering, Human & Object tracking algorithm, (Partly) Integrated sensor setup in vehicle, Viewer GUI)
[Link]

Infrared Monitoring AI System For Maritime Rescue
Korean Coast Guard, Incheon, Republic of Korea

Achieved Outcomes: Designed thermal-infrared target detection system specified for unmanned coast guard boats for maritime rescue search tasks.
(Role: Project leader, Dataset acquisition, Experiment, Overall framework design)
[Details]

iToF Scanning LiDAR Platform and Its Application Software
Intek Plus Inc., Daejon, Republic of Korea

Achieved Outcomes: Proposed miniaturized indirect time-of-flight AMCW LiDAR system and its application software tailored to driver monitoring system (DMS) and highly precise 3D scanner.
(Role: (Full) 3D computer vision, (Partly) Optical system design & Signal processing)
[Details]