Derek Daehyun Ji

captainzone [at] gmail.com, derek.ji [at] samsung.com
Samsung Electroincs, Suwon, South Korea.

Brief Bio

I am a Master (Vice President of Technology) at Samsung Electronics, Suwon, South Korea and as the Head of the Manufacturing & Material Handling AI Lab at the AI Center, DS Division, I am currently leading the development of AI & Robotics technologies for production optimization and logistics automation. Prior working at AI Center, I led the development of AI technologies for ADAS and Autonomous driving at Samsung Advanced Institute of Technology. Before that I was a Visiting Researcher at Montreal Institute for Learning Algorithms(MILA) (Professor Simon Lacoste-Julien). I completed my PhD at POSTECH(Pohang University of Science and Technology) under the supervision of Professor Sangchul Won. My current and past research work broadly involve AI, computer vision, robotics. More recently, I am primarily interested in AI based Autonomous Machine = AI + Robotics. My mission is "to benefit humanity widely through cutting-edge AI technologies." My vision is "to be a pioneer leading the advancement of AI, creating key technologies for future society through innovative research."

[Google Scholar] [LinkedIn] [Facebook] [CV]

Publications

C: Peer-Reviewed Conference / J: Journal

[C10] ”3D Occupancy Prediction with Low-Resolution Queries via Prototype-aware View Transformation”
Gyeongrok Oh*, Sungjune Kim*, Heeju Ko, HYUNG-GUN CHI, Jinkyu Kim, Dongwook Lee, Daehyun Ji, Sungjoon Choi, Sujin Jang, Sangpil Kim, CVPR 2025.
[paper]
[C9] ”Unveiling the Hidden: Online Vectorized HD Map Construction with Clip-Level Token Interaction and Propagation”
Nayeon Kim*, Hongje Seong*, Daehyun Ji, Sujin Jang, NeurIPS 2024.
[paper]
[C8] ”Unified Domain Generalization and Adaptation for Multi-View 3D Object Detection”, (in collaboration with Korea University / 고려대학교)
Gyusam Chang, Jiwon Lee, Donghyun Kim, Jinkyu Kim, Dongwook Lee, Daehyun Ji, Sujin Jang, Sangpil Kim, Accepted!, NeurIPS 2024.
[paper]
[C7] ”CMDA: Cross-Modal and Domain Adversarial Adaptation for LiDAR-based 3D Object Detection”, (in collaboration with Korea University / 고려대학교)
Gyusam Chang, Wonseok Roh, Sujin Jang, Dongwook Lee, Daehyun Ji, Gyeongrok Oh, Jinsun Park, Jinkyu Kim, Sangpil Kim, AAAI 2024.
[paper]
[C6] ”STXD: Structural and Temporal Cross-Modal Distillation for Multi-View 3D Object Detection”
Sujin Jang, Dae Ung Jo, Sung Ju Hwang (KAIST), Dongwook Lee, Daehyun Ji, NeurIPS, 2023.
[paper]
[C5] ”D-3DLD: Depth-aware Voxel Space Mapping for Monocular 3D Lane Detection with Uncertainty”
Nayeon Kim, Moonsub Byeon, Daehyun Ji, Dokwan Oh, ICASSP, 2023.
[paper]
[C4] ”Semi-supervised 360° Depth Estimation with Multiple Fisheye cameras”
Jaewoo Lee, Daeul Park, Dongwook Lee, ** Daehyun Ji, ICASSP, 2022.
[paper]
[C3] ”Segmenting 2K-Videos at 36.5 FPS with 24.3 GFLOPs: Accurate and Lightweight Realtime Semantic Segmentation Networks”
Dokwan Oh, Daehyun Ji, Cheolhun Jang, Yoonsuk Hyun, Hong S. Bae, Sung Ju Hwang, ICRA, 2020.
[paper]
[C2] ”Guaranteed cost LPV controller design for a class of chaos synchrnoization”
J.H. Koo, S.M.Lee, D.H Ji, S.C.Won, ACC, 2011.
[paper]
[C1] ”Robust Model Predictive Control for LPV systems with delayed state using relaxation matrices”
S.C. Jeong, S.M.Lee, D.H Ji,S.C.Won, ACC, 2011.
[paper]
[J32] ”Fast and Easy Sensor Adaptation with Self-training”
Jinhyuk Choi, Byeongju Lee, Seho Shin, ** Daehyun Ji, IEEE Access 11, 8870-8877, 2023
[paper]
[J31] ”Boosting Out-of-Distribution Image Detection With Epistemic Uncertainty”
Dokwan Oh, Daehyun Ji, Ohmin Kwon, Yoonsuk Hyun, IEEE ACCESS, 10, 109289-109298, 2022
[paper]
[J30] ”Stability and dissipativity criteria for neural networks with time-varying delays via an augmented zero equality approach”
S.H.Lee, M.J.Park, ** D.H Ji, **O.M.Kwon, Neural Network, Volume 143, 209-217, November, 2021
[paper]
[J29] ”How to Handle Noisy Labels for Robust Learning from Uncertainty”
Daehyun Ji, Dokwan Oh, Yoonsuk Hyun, Ohmin Kwon, Myeong-Jin Park, Neural Network, Volume 143, 209-217, November, 2021
[paper]
[J28] ”Leader−following consensus problem of heterogeneous multi−agent systems with nonlinear dynamics using fuzzy disturbance observer”
T.H Lee, J.H Park, D.H Ji, H.Y Jung, Complexity 19,4, 20-31, 2014
[paper]
[J27] ”Integral control for synchronization of complex dynamical networks with unknown non-identical nodes”
D.W Lee,W.J Yoo, D.H Ji, J.H Park, Applied Mathematics and Computation 224, 140-149, 2013
[paper]
[J26] ”Adaptive synchronization for uncertain chaotic neural networks with mixed time delays using fuzzy disturbance observer”
S.C Jeong, D.H Ji, J.H Park, S.C Won, Applied Mathematics and Computation 219 11, 5984-5995, 2013
[paper]
[J25] ”Adaptive synchronization for uncertain complex dynamical network using fuzzy disturbance observer”
S.C Jeong, D.H Ji, J.H Park, S.C Won, Nonlinear Dynamics 71, 1-2, 223-234, 2013
[paper]
[J24] ”Precise tracking control of piezoelectric actuators based on a hysteresis observer”
D.H Ji, J. H. Koo, W. J. Yoo, Ju H. Park, Nonlinear Dynamics 70, 3, 1969-1976, 2012
[paper]
[J23] ”Decentralized guaranteed cost dynamic control for synchronization of a complex dynamical network with randomly switching topology”
Tae H. Lee, Ju H. Park, D.H Ji, H.Y.Jung, Applied Mathematics and Computation 219,3,996-1010, 2012
[paper]
[J22] ”State estimation of neural networks with time-varying delays and Markovian jumping parameter based on passivity theory”
S. Lakshmanan, Ju H. Park, D.H Ji, H.Y. Jung , G. Nagamani, Nonlinear, Dynamics 70,2,1421-1434, 2012
[paper]
[J21] ”Robust adaptive backstepping synchronization for a class of uncertain chaotic systems using fuzzy disturbance observer”
D.H Ji, S.C.Jeong, J.H. Park,S.C.Won, Nonlinear Dynamics 69, 3, 1125-1130, 2012
[paper]
[J20] ”An improved robust delay-dependent stability criterion for genetic regulatory networks with interval time delays”
J.H. Koo, D.H Ji, Ju. H. Park, Communications in Nonlinear Science and Numerical Simulation 17, 8, 3399-3405, 2012
[paper]
[J19] ”Guaranteed cost synchronization of a complex dynamical network via dynamic feedback control”
Tae H. Lee, Ju H. Park, D.H Ji, O.M. Kwon, S.M. Lee, Applied Mathematics and Computation 219, 3, 996-1010,2012
[paper]
[J18] ”Adaptive lag synchronization for uncertain complex dynamical network with delayed coupling”
D.H Ji, S.C.Jeong, S.M.Lee, J.H. Park, S.C.Won, Applied Mathematics and Computation 218,9, 4872-4880, 2012
[paper]
[J17] ”Synchronization of neutral complex dynamical networks with coupling time varying delays”
D.H Ji, D.W. Lee, J.H. Koo, S.C.Won, S.M.Lee, Ju.H. Park, Nonlinear Dynamics, 65,349–358, 2011
[paper]
[J16] ”H∞ synchronization of nonlinear Bloch equations via dynamic feedback control approach”
D.H Ji, J.H. Koo, S.C.Won, S.M.Lee, Ju.H. Park, Chin. Phys. B, 20, 7, 070502, 2011
[paper]
[J15] ”Robust H∞ filtering for a class of discrete-time nonlinear systems”
S.M.Lee, D.H Ji, O.M. Kwon, Ju.H. Park, Applied Mathematics and Computation 217, 7991–799, 2011
[paper]
[J14] ”Passivity−based control for Hopfield neural networks using convex representation”
D.H Ji,J.H. Koo, S.C.Won, S.M.Lee, Ju.H. Park, Applied Mathematics and Computation, 217,13,1, 6168-6175, 2011
[paper]
[J13] ”Synchronization of singular complex dynamical networks with time-varying delays”
J.H. Koo, D.H Ji, S.C.Won, Applied Mathematics and Computation, 217, 3916-3923, 2010
[paper]
[J12] ”Synchronization criterion for Lur’e systems via delayed PD controller”
D.H Ji, Ju H. Park, S.M.Lee, J.H. Koo, S.C.Won, J Optim Theory Appl,147, 2, 298–317, 2010
[paper]
[J11] ”Adaptive fuzzy synchronization of different chaotic systems with stochastic unknown parameters”
W.J. Yoo, D.H Ji, S.C.Won, Modern Physics Letters B, 24,10,979-994, 2010
[paper]
[J10] ”Synchronization of two different non-autonomous chaotic systems using fuzzy disturbance observer”
W.J. Yoo, D.H Ji, S.C.Won, Physics Letters A, 374 Pages 1354-1361,1, 2010
[paper]
[J9] ”Synchronization criterion for Lur’e type complex dynamical networks with time-varying delay”
D.H Ji, Ju H. Park, W.J. Yoo, S.C.Won, S.M. Lee, Physics Letters A , 374,10, 1218-1227, 22 Feb, 2010
[paper]
[J8] ”Synchronization for chaotic Lur’e systems with sector restricted non-linearities via delayed feedback control”
S.M. Lee, S.J. Choi, D.H Ji, Ju H. Park, S.C.Won, Nonlinear Dynamics, 59, 277-288, 2010
[paper]
[J7] ”Robust Memory State Feedback Model Predictive Control for Discrete-Time Uncertain State Delayed Systems”
D.H Ji, Ju H. Park, W.J. Yoo, S.C.Won, Applied Mathematics and Computation,215,2035–2044, 2009
[paper]
[J6] ”H infinity control of Lur’e sysetms with sector and slope restricted nonlinearities”
Ju H. Park, D.H Ji, S.C Won, S.M. Lee, S.J. Choi, Physics Letters A, 373, 3734–3740, 2009
[paper]
[J5] ”Adaptive H infinity synchronization of unified chaotic systems”
Ju H. Park, D.H Ji, S.C Won, S.M. Lee, Modern physics letter B , 23, p.1-13, 2009
[paper]
[J4] ”Master slave synchronization of Lur’e systems with sector and slope restricted nonlinearities”
D.H Ji, Ju H. Park, S.C Won, Physics Letter A, 373, 11, 1044-1050, 2009
[paper]
[J3] ”H infinity synchronization of time delay chaotic systems”
Ju H. Park, D.H Ji, S.C Won, S.M. Lee, Applied Mathematics and Computation, 204,170-177, 2008
[paper]
[J2] ”H infinity synchronization of chaotic systems via dynamic feedback approach”
S.M. Lee, D.H Ji, Ju H. Park, S.C Won, Physics Letter A, 372, 27,4905-4912, 2008
[paper]
[J1] ”A robust model predictive control for LPV systems using relaxation matrices”
S.M. Lee, Ju H Park, D.H Ji, S.C.Won, IET Control Theory and Applications, 1,6, 1567-1573, 2007
[paper]

Patent

[P27] ”Device and method with camera pose estimation”
J Cheolhun, KOO Jahoo, DH Ji,
US Patent App. 18/464,654, 2024
[P26] ”Method and apparatus with object detector training”
S Jang, S Kim, J Kim, ROH Wonseok, G Chang, D Lee, DH Ji,
US Patent App. 18/451,287, 2024
[P25] ”Method and device with traffic light state determination”
KOO Jahoo, J Jeong, S Seho, DH Ji,
US Patent App. 18/349,393, 2024
[P24] ”Method of outputting prediction result using neural network, method of generating neural network, and apparatus therefor”
D Oh, CH Jang, DH Ji,
US Patent 11,681,921, 2023
[P23] ”Training data generating method for image processing, image processing method, and devices thereof”
WJ Lee, S Shin, DW Lee, DH Ji,
US Patent 11,670,087, 2023
[P22] ”Method and apparatus with lane genertion”
N Kim, M Byeon, OH Dokwan, DH Ji,
US Patent App. 17/862,821,2023
[P21] ”Image processing method and apparatus with neural network adjustment”
J Cheolhun, OH Dokwan, DH Ji,
US Patent 11,636,698,2023
[P20] ”Method and apparatus for determining slope of road using side view camera of vehicle”
M Byeon, N Kim, DH JI,
US Patent App. 17/685,917, 2023
[P19] ”Method and apparatus for determining object position”
LEE Wonju, KOO Jahoo, Dongwook Lee, Jaewoo Lee, Dae Hyun JI,
US 11525688/16135160, 2022
[P18] ”Method and apparatus with estimation of distance between pedestrian and camera”
PARK Yonggonjong, JANG Cheolhun, Dae Hyun JI,
US 17518762 2022
[P17] ”Method and apparatus for determining driving information”
Dae Hyun JI, Won-Ju Lee, Cheol-Hun Jang, Do-kwan Oh, Yoon-suk Hyun,
US 11294392/16524377, 2022
[P16] ”Method and apparatus for determining driving information”
Yoon-suk Hyun, Cheol-Hun Jang, Ja-Hoo Koo, Dae Hyun JI,
US 11200432/16508931, 2021
[P15] ”Image processing method and apparatus with neural network adjustment”
JANG Cheolhun, OH Dokwan, Dae Hyun JI,
US 17368917, 2021
[P14] ”Apparatus and method for converting image”
Jae-Woo Lee, Yoon-suk Hyun, Ja-Hoo Koo, Cheol-Hun Jang, Dae Hyun JI,
US 11062153/16531859, 2021
[P13] ”Method and apparatus for recognizing object”
Jaewoo Lee, JANG Cheolhun, Dongwook Lee, LEEWonju, Dae Hyun JI, HYUN Yoonsuk,
US 10885787/16014078, 2021
[P12] ”Method and apparatus with linearity detection”
Dae Hyun JI, OH Dokwan, KOO Jahoo, Dongwook Lee, LEEWonju, Jaewoo Lee, JANG Cheolhun, HYUN Yoonsuk,
US 10853667/16166504, 2020
[P11] ”Data processing method based on neural network, training method of neural network, and apparatuses thereof”
KOO Jahoo, Dae Hyun JI, HYUN Yoonsuk,
US 16553466, 2020
[P10] ”Method and apparatus for controlling vision sensor for autonomous vehicle”
Dae Hyun JI, OH Dokwan, Dongwook Lee, Jaewoo Lee, JANG Cheolhun,
US 10657387/15472517, 2020
[P9] ”Input method and electronic device using pen input device”
Dae Hyun JI,
US 10649552/16297859, 2020
[P8] ”Method of outputting prediction result using neural network, method of generating neural network, and apparatus therefor”
Do-kwan OH, Cheol-Hun Jang, Dae Hyun JI,
US 16660228, 2020
[P7] ”Method and apparatus of detecting object of interest”
LEE Wonju, Jaewoo Lee, Dong-Wook Lee, Dae Hyun JI,
US 10599930/15992234, 2020
[P6] ”Apparatus and method for generating training data to train neural network determining information associated with road included in image”
Won-Ju Lee, Se-ho Shin, Dong-Wook Lee, Dae Hyun JI,
US 16514661, 2020
[P5] ”Method and apparatus with vehicular longitudinal velocity control”
Jaewoo Lee, KOO Jahoo, Dongwook Lee, LEEWonju, Dae Hyun JI,
US 16046138, 2020
[P4] ”Method and apparatus for maintaining a lane”
KOO Jahoo, Dongwook Lee, Jaewoo Lee, Dae Hyun JI,
US 16145700, 2019
[P4] ”Vehicle movement prediction method and apparatus”
HYUN Yoonsuk, Jaewoo Lee, JANG Cheolhun, Dae Hyun JI,
US 15992240, 2019
[P3] ”Apparatus and method for changing route of vehicle based on emergency vehicle”
Dongwook Lee, KOO Jahoo, Jaewoo Lee, Dae Hyun JI,
US 15996931, 2019
[P2] ”Method and apparatus for controlling alarm operation in a terminal”
Kyung-Chun Moon, Joon-Woo Kim, JI Dae-Hyun,
US 9405560/13954567, 2016
[P1] ”Method arranging user interface objects in touch screen portable terminal and apparatus thereof”
KIM Hyung-Gyu, JI Dae-Hyun, Joon-Woo Kim,
US 9182876/13657280, 2015

Work Experience

  • Manufacturing/ Material Handling AI Lab(AI Center) / Samsung Electronics , Suwon, South Korea
    • Master (Vice President of Technology) (March. 2025 - Current)
    • Head of Lab
    • AI & Robotics technologies for production optimization and logistics automation
  • Computer Vision TU, AI Research Center, Samsung Advanced Institute of Technology (SAIT), Suwon, South Korea
    • Master (Vice President of Technology) (Nov. 2023 - 2024)
    • Project Lead of Autonomous Driving Project
    • AI based Autonomous Machine = AI + Robotics
  • Computer Vision TU, AI Research Center, Samsung Advanced Institute of Technology (SAIT), Suwon, South Korea
    • Principle Researcher (Research Master), Autonomous Driving (March. 2020 - Nov. 2023)
    • Project Lead
    • AI based Autonomous Driving
  • Mila - Quebec AI Institute , Montreal, Quebec, Canada
    • Visiting Researcher (Jan. 2019 - Jan. 2020)
    • Artificial Intelligence (Noisy Labeling, Unceratainty Aware Knowledge Distillation)
  • A-Project Team, System LSI, Samsung Electronics Co., Hwaseong, South Korea
    • Principle Engineer, Core Algorithm Group (Sep. 2018 - May. 2020)
    • ADAS SoC Perception Solution
  • SW Solution Lab, Device & System Center, Samsung Advanced Institute of Technology (SAIT), Suwon, South Korea
    • Principle Researcher, Autonomous Driving (Mar. 2015 – Aug. 2018)
    • Project Leader (Mar. 2015 – Feb. 2018)
    • Deep Learning (Detection, Segmentation), Computer Vision (Localization & Mapping), Path Planning & Control
  • Mobile Communication Division, Samsung Electronics Co., Suwon, South Korea
    • Senior SW Engineer (Sep. 2009 - Aug. 2015)
    • Samsung Galaxy, System SW (Kernel / Device Driver / Framework / Application )

Education

  • POSETCH (Pohang University of Science and Technology) , Pohang, Korea
    • Integrated MS/Ph.D., Department of Electrical Engineering (Mar 2003 - Aug 2009)
    • Major: Robotics & Control
    • Advisor: Dr. Sangchul Won
    • Thesis: A Study on Sychronization for Nonlinear Chaotic Systems
  • Kyungbook National University, Daegu, South Korea
    • B.S., Department of Electrical Engineering (Mar 1996 - Feb 2003)

Honors and Awards

  • DS Vision Award (Inclusion), DS Division, Samsung Electronics (2024)
    • Automotive Community
  • SAIT Vision Award, SAIT, Samsung Electronics (2023)
    • Digital Transformation
  • Distinguished Engineer Award (DS 부문 최고기술인상), DS Division, Samsung Electronics (2022)
    • ADAS / L4 Autonomous Driving
  • Boundless Search for Breakthroughs Award (무한탐구상), SAIT, Samsung Electronics (2022)
    • Autonomous Driving
  • Gold Award, Samsung Best Paper, Samsung Electronics (2018)
    • Uncertainty-aware Knowledge Distillation for Realtime Scene Segmentation
  • Samsung Future Creator Award, DS Division, Samsung Electronics (2018)
    • Autonomous Driving Platform
  • Bronze Award, Samsung Best Paper, Samsung Electronics (2017)
    • Selective Knowledge Distillation for Real-Time Object Detection
  • Leaders the world’s top 100 technologies in 2025, NAEK (2017)
    • Autonomous Driving
  • Best AP Award, SAIT, Samsung Electronics (2017)
    • Computer Vision in Autonomous Driving

Scientific Community Service

  • [NeurIPS] Reviewer, Conference on Neural Information Processing Systems
  • [IEEE ECCV/ICCV] Reviewer, European / International Conference on Computer Vision
  • [IEEE CVPR] Reviewer, Conference on Computer Vision and Pattern Recognition

Invited Semnar

  • " AI Research at Samsung", Busan, South Korea, KCCV 2024, 2024.8.13
  • "Generative AI in Autonmous Driving", Seoul, South Korea, 제 4회 이화여자대학교 인공지능융합혁신인재양성 산학협력포럼, 2024.04.04
  • "Computer Vision for Autonomous Driving", Seoul, South Korea, 한국자동차 공학회 이화세미나, 2024.03.12
  • "SAIT Autonmous Driving", Seoul, South Korea, 2023 IoT Technology & Business Forum, 2023.05.17
  • "SAIT Autonmous Driving", Jeju, South Korea, IPIU 2023, 2023.02.08
  • "Computer Vision & Autonomous Driving", Daegu, South Korea, Kyungbook National University, 2021.12.06
  • "Automotive Vision", Cheongju, South Korea, Chungbook National University, 2021.06.20
  • "Automotive Vision", Daegu, South Korea, Kyungbook National University, 2020.06.01
  • "Autonomous Driving", Daegu, South Korea, Kyungbook National University, 2018.10.12
  • "Autonomous Driving Platform", Seoul, South Korea, The Institute of Electronics and Information Engieers (IEIE), 2018.06.17
  • "Realtime Situation Understanding & Autonomous Driving", Seoul, South Korea, Institute of Semiconductor Engineers (ISE), 2018.04.26
  • "Autonomous Driving", Seoul, South Korea, AI & Deep Learning Summit, 2018.04.06
  • "Realtime Situation Understanding", Jeju, South Korea, Institue of Embedded Engineering of Korea (IEMEK), 2017.11.10
  • "Introduction of Deep Learning", Seoul, South Korea, Sogang University, 2016.11.22