Data extraction from 
engineering drawings

The aim of this research is to allow automatic conversion of an engineering drawing into a table form that can be used for digital trasnformation. We focus on both table/symbol detection and data extraction using DNN, image processing, PDFminer.

Display to camera communication

Display-to-camera (D2C) communication is a promising candidate for short-range M2M communication with a display–camera link. The D2C system must deliver seamless and ubiquitous communication and must enable successful acquisition of the embedded data on the receiver side.

Object detection/tracking

Deep learning based object detection has been a research hotspot in recent years. We focus on real-time object detection and tracking using YOLO, SSD, and MobileNet for various applications including autonomous driving and intelligent surveillance.

Intelligent manufacturing

Intelligent manufacturing is the utilization of real-time data analysis and artificial intelligence (AI) in the manufacturing process. For this, we study on fault detection using CNN, predictive maintenance using RNN, LSTM, robot control and scheduling using deep reinforcement learning.

Autonomous car and drone

Autonomous car and drone technologies have been advancing steadily in recent years. We use AirSim simulator for the research on self-driving cars and drones using CNN, image segmentation, and deep reinforcement learning.

Time series data analysis

An objective of time series analysis is to explore and understand data patterns in changes over time. Machine Learning techniques can find patterns in time series data and forecast the future values. We analyze time series data such as sensor data, stock price and health monitoring data.

Medical data analysis and processing

The exploitation of Super-Resolution (SR) task to effectively increase the resolution of poor-quality ultrasound images has gained extensive interests. We research on deep learning-based SR for ultrasound medical imaging. In addition, we study deep CNN-based finger vein identification which is capable of learning exquisite vein features.

IoT with open source hardware

The edge AI ecosystem has benefited greatly from the open source availability of libraries and open hardware. We implement extensive AI-assisted systems with open source hardwares including raspberry pi, jetson Tx2, jetson Xavier, etc.

Prof. Byung Wook Kim

BYUNG WOOK KIM received the B.S. degree from the School of Electrical Engineering, Pusan National University, Pusan, South Korea, in 2005, and the M.S. and Ph.D. degrees from the Department of Electrical Engineering, KAIST, Daejeon, South Korea, in 2007 and 2012, respectively. He was a Senior Engineer with the Korea Electrotechnology Research Institute, Changwon-si, South Korea, from 2012 to 2013. He was an Assistant Professor with the School of Electrical and Railway Engineering, Kyungil University, Gyeongsan-si, South Korea, from 2013 to 2016. He was an Assistant Professor with the Department of ICT Automotive Engineering, Hoseo University, from 2016 to 2019. He is currently an Associate Professor with the Department of Information and Communication Engineering, Changwon National University, Changwon-si, South Korea. His research interests include machine learning, deep learning, visible light communications, optical camera communications, and V2X communications.
He is a member of IEEE, KICS, KIEE and IEIE.

M.S. candidates

Nilesh Maharjan
research area: free space optics communication, 
deep learning
https://github.com/Nileshmaharjan/

Nikesh Devkota
research area: free space optics communication, deep learning

Hyunjin Jo 
 (Lab manager)
research area: object detection
deep learning 
https://github.com/myunyui22

Undergraduate students


​Hyeokjin Sim 

Jeongmo Je 

​

Alumni

Wonwoo Nam
‌Lakpa Dorje Tamang
‌Taeyang Park
‌Seong Joon Kim
Min tae Kim

NEWS
2024. 01
Nikesh Devkota (2nd year, MS candidate)'s paper entitled “ Finger Vein Recognition Using DenseNet with a Channel Attention Mechanism and Hybrid Pooling ” has been published in Electronics (SCIE).
2023. 11
Nikesh Devkota (2nd year, MS candidate)'s paper entitled “Deep Learning-Based Small Target Detection for Satellite–Ground Free Space Optical Communications” has been published in Electronics (SCIE).
2023. 09
Nilesh Maharjan (2nd year, MS candidate)'s paper entitled “Dense D2C-Net: Dense Connection Network for Display-to-Camera Communications” has been published in Optics express (SCIE).
2023. 06
Hyunjin Jo (1st year, MS candidate)'s paper entitled “Method for improving the pronunciation evaluation of foreign spoken Korean
based on morphemes analysis” has been published in Journal of the Korea Institute of Information and
Communication Engineering (KCI).
2022. 11
Min Tae Kim (2nd year, MS candidate)'s paper entitled “DeepCCB-OCC: Deep Learning-Driven Complementary Color Barcode-Based Optical Camera Communications” has been published in Applied Sciences (SCIE).
2022. 10
Nilesh Maharjan, Nikesh Devkota (1st year, MS candidate)'s paper entitled “Atmospheric Effects on Satellite–Ground Free Space Uplink and Downlink Optical Transmissions” has been published in Applied Sciences (SCIE).
Projects
2023~2023
Research on artificial intelligence-based testing data analysis and application technology for testing advancement 3 (Funder:Korea Electrotechnology Research Institute)
2022~2023
Automatic Table Data Extraction from Equipment Drawings (Funder:Samsung Heavy Industries)
2022~2025
A study on beam pointing technique of free space optics-based LEO satellite for traffic information service (Funder: The National Research Foundation of Korea (NRF))
2022~2022
Research on artificial intelligence-based testing data analysis and application technology for testing advancement 2 (Funder:Korea Electrotechnology Research Institute)
2021~2021
Research on artificial intelligence-based testing data analysis and application technology for testing advancement 1 (Funder:Korea Electrotechnology Research Institute)
2020~2021
Kiosk system prototype development for monitoring and control of machine tools  (Funder:The National Research Foundation of Korea (NRF))
2020~2022
Development of Biometic imaging system using Piezoelectric Micromachined Ultrasonic Transducers (Funder:Ministry of SMEs and Startups (MSS))
2019~2022
Enhancement of cooperative intelligent transportation system based on UAV and optical camera communications (Funder: The National Research Foundation of Korea (NRF))
2016~2019
A Fundamental Study of the Optical Camera Communication based Autonomous Vehicles (Funder:The National Research Foundation of Korea (NRF))
2014~2016
Study on Vision Based 1 m-grade Vehicle Location-aware Service Using Visible Light Communication in V2V and V2I (Funder:Korea Agency for Infrastructure Technology Advancement (KAIA))
International Journal
N. Devkota, B. W. Kim, Finger Vein Recognition Using DenseNet with a Channel Attention Mechanism and Hybrid Pooling, Electronics, 13(3), 2024
N. Devkota, B. W. Kim, Deep Learning-Based Small Target Detection for Satellite–Ground Free Space Optical Communications, Electronics, 12, 2023
N. Maharjan,L. D. Tamang, B. W. Kim, Dense D2C-Net: Dense Connection Network for Display-to-Camera Communications, Optics express, 31(19), 2023
B. W. Kim, P. Singh, and S.-Y. Jung, Iterative Pilot-Based Reference Frame Estimation for Improved Data Rate in Two-Dimensional Display Field Communications, 
Applied Sciences, 13, 9916, 2023
M. T. Kim, B. W. Kim, DeepCCB-OCC: Deep Learning-Driven Complementary Color Barcode-Based Optical Camera Communications, Applied Sciences, 12, 11239, 2022
N. Maharjan, N. Devkota, B. W. Kim, Atmospheric Effects on Satellite–Ground Free Space Uplink and Downlink Optical Transmissions, Applied Sciences, 12, 10994, 2022
L. D. Tamang, B. W. Kim, FVR-Net: Finger Vein Recognition with Convolutional Neural Network Using Hybrid Pooling, Applied Sciences, 12, 7538, 2022
L. D. Tamang, B. W. Kim, Super-Resolution Ultrasound Imaging Scheme Based on a Symmetric Series Convolutional Neural Network, Sensors, 22, 3076, 2022
P. Singh, H. Jeon, S. Yun, B. W. Kim, and S.-Y. Jung, Vehicle Positioning Based on Optical Camera Communication in V2I Environments, Computers, Materials and Continua, (72)2, 2022
L. D. Tamang, B. W. Kim, Deep Learning Approaches to Colorectal Cancer Diagnosis: A Review, Applied sciences, 11, 2021
B. W. Kim, M. C. Choi, M. K. Kim et al. Machine Learning for Recurrence Prediction of Gynecologic Cancers Using Lynch Syndrome-Related Screening, Cancers, 13(22), 5670, 2021
Y. Han, S. Lee, B.W. Kim, and Y. Kim, Resource-Optimized Design of Bit-Shuffle Block Coding for MIMO-VLC, IEEE Access, 7, 2021
L. D. Tamang, B. W. Kim, Deep D2C-Net: deep learning-based display-to-camera communications, Optics express, 29(8), 2021
L. D. Tamang, B. W. Kim, Spectral Domain-Based Data-Embedding Mechanisms for Display-to-Camera Communication, Electronics, 10(4), 2021
B. W. Kim, J.-H. Yoo, S.-Y. Jung, Design of Streaming Data Transmission Using Rolling Shutter Camera-Based Optical Camera Communications, Electronics, 9(10), 2020
P. Singh, B. W. Kim, S.-Y. Jung, DS-OOK for Terahertz Band Nanonetworks, National Academy Science Letters, 2020
P. Singh, B. W. Kim, S.-Y. Jung, Performance Analysis of Display Field Communication with Advanced Receivers, Wireless Communications and Mobile Computing, 3657909, 2020
S.-Y. Jung, J.-H. Lee, W. Nam, B. W. Kim, Complementary Color Barcode-Based Optical Camera Communications, Wireless Communications and Mobile Computing, 3898427, 2020
R. M. Fikri, B. W. Kim, M. Hwang, Waiting Time Estimation of Hydrogen-Fuel Vehicles with YOLO Real-Time Object Detection, 621: 229-237, 2019
Y. Han, Y. Kim and B.W. Kim, Bit-Shuffle Coding for Flicker Mitigation in Visible Light Communication, IEEE Access, 7: 150271-150279, 2019
P. Singh, B. W. Kim, S.-Y. Jung, Compressed Detection for Pulse-based Communications in the Terahertz Band, Wireless Communications and Mobile Computing, 2408496, 2018
B. W. Kim, and S.-Y. Jung, Dimmable Spatial Intensity Modulation for Visible Light Communications: Capacity Analysis and Practical Design, Current Optics and Photonics, 2(6): 523-539, 2018
B. W. Kim, J.H. Lee and S.-Y. Jung, Transition-based Data Decoding for Optical Camera Communications using a Rolling Shutter Camera, Current Optics and Photonics, 2(5),: 422-430, 2018
B. W. Kim, H.C Kim and S.-Y. Jung, Implementation of two-dimensional display field communications for enhancing the achievable data rate in smart-contents transmission, 
Displays, 55(1): 31-37, 2018
P. Singh, B. W. Kim, S.-Y. Jung, TH-PPM with non-coherent detection for multiple access in electromagnetic wireless nanocommunications, Nano Communication Networks, 17: 1-13, 2018.
S.Y. Jin, D. Choi and B. W. Kim, Optical Vehicle to Vehicle Communications for Autonomous Mirrorless Cars, Journal of Multimedia Information System, 5(2): 105-110, 2018.
B. W. Kim and S.-Y. Jung, Dimming control technique for compressed sensing-based optical camera communications, Photonic Network Communications, 36(1): 165–173, 2018.
B. W. Kim, Suboptimal LED selection for distributed MIMO visible light communications, Personal and Ubiquitous Computing, 22(1): 105-110, 2018.
P. Singh, B. W. Kim, S.-Y. Jung, Preamble-based synchronization scheme for electromagnetic wireless nanocommunications, IET Communications, 11(7): 1097-1105, 2017.
H.-C. Kim, B. W. Kim, S.-Y. Jung, Performance of a wavelength hopping MC-VPPM scheme for vehicle-to-infrastructure(V2I) VLC, Photonic Network Communications, 33(1): 60–68, 2017.
B. W. Kim and S.-Y. Jung, Channel capacity of the distributed MIMO relay in visible light communication systems, Photonic Network Communications, 34(2): 298–305, 2017.
B. W. Kim, Secrecy Dimming Capacity in Multi-LED PAM-based Visible Light Communications, Wireless Communications and Mobile Computing, Vol. 2017, ID 4094096, 2017
B. W. Kim and S.-Y. Jung, Peak-to-average power ratio reduction of a hidden training sequence-aided precoding scheme for MIMO-OFDM, 
International Journal of Communication Systems, 30(1): 2017.
B. W. Kim and S.-Y. Jung, Novel Flicker-Free Optical Camera Communications Based on Compressed Sensing, IEEE Communications Letters, 20(6): 1104-1107, 2016.
B. W. Kim and S.-Y. Jung, Precoding-Based Interference Mitigation for MR-OFDM in Smart Utility Networks, IEEE Transactions on Vehicular Technology, 65(1): 75-81, 2016.
J.-H. Yoo, B. W. Kim and S.-Y. Jung, Modeling and analysis of M-ary Variable Pulse Position Modulation for Visible Light Communications, IET Optoelectronics, 9(5): 184-190, 2015.
B. W. Kim, H.-C. Kim and S.-Y. Jung, Display Field Communication: Fundamental Design and Performance Analysis, Journal of Lightwave Technology, 33(24): 5269 – 5277, 2015.
B. W. Kim and S.-Y. Jung, Bandwidth-Efficient Precoding Scheme with Flicker Mitigation for OFDM-Based Visible Light Communications, ETRI Journal, 37(4): 677-684, 2015.
B. W. Kim and S.-Y. Jung, Time-interpolated channel estimation for increasing channel capacity of superimposed training-based precoding schemes, IET Communications, 9(7): 933-939, 2015.
B. W. Kim and S.-Y. Jung, Near-Optimal Low-Complexity Antenna Selection Scheme for Energy-Efficient Correlated distributed MIMO Systems, 
AEU-International Journal of Electronics and Communications, 69(7): 1039-1046, 2015
B. W. Kim, B.-G. Kim, Exclusive Region Based Scheduling for MB-OFDM UWB Using Hidden Pilot Sequences, Frontier and Innovation in Future Computing and Communications, 
Lecture Notes in Electrical Engineering, 301: 29-35, 2014.
B. W. Kim, and S. Y. Jung, Power allocation for hidden-pilot-aided precoding schemes in orthogonal frequency division multiplexing systems, IET Communications, 8(3): 308-314, 2014.
B. W. Kim, S. Y. Jung, and D. J. Park, Density-aware Scheduling Based on the Exclusive Region in UWB-WPAN Systems, IEICE Transactions on Communications, E95-B(6): 2074-2079, 2012.
B. W. Kim, J. H. Jung, B. G. Kim, D. J. Park, Construction of a Non-Overlapping Panoramic Mosaic in Wireless Multimedia Sensor Networks, IET Image Processing, 6(1): 53-59, 2012.
M. S. Oh, H. J. Kong, T. H. Kim, S. E. Jo, B. W. Kim and D. J. Park, Development and analysis of a photon-counting three-dimensional imaging laser detection and ranging (LADAR) system, Journal of the Optical Society of America, 28(5): 759-765, 2011.
M. S. Oh, H. J. Kong, T. H. Kim, K. H. Hong, B. W. Kim, Multihit mode direct-detection laser radar system using a Geiger-mode avalanche photodiode, Review of Scientific Instruments, 81(3): 033109-1-6, 2010.
M. S. Oh, H. J. Kong, T. H. Kim, K. H. Hong, B. W. Kim and D. J. Park, Time-of-Flight Analysis of Three-Dimensional Imaging Laser Radar Using A Geiger-Mode Avalanche Photodiode,
Japanese Journal of Applied Physics, 49: 026601-1-6, 2010.
M. S. Oh, H. J. Kong, T. H. Kim, K. H. Hong and B. W. Kim, Reduction of Range Walk Error in Direct Detection Laser Radar Using a Geiger Mode Avalanche Photodiode, Optics Communications, 283(2): 304-308, 2010.
J. T. Kim, B. W. Kim and D. J. Park, Mitigation of Transmit Correlation for TIMO Spatial Multiplexing though Phase Rotation, IEEE Communications Letters, 12(2): 118-120, 2008.
B. W. Kim, S. Y. Jung, J. T. Kim, D. J. Park, Hidden Pilot Based Precoder Design for MIMO-OFDM Systems, IEEE Communications Letters, 12(9): 657-659, 2008.
Domestic Journal
H. Jo, B. W. Kim, Method for improving the pronunciation evaluation of foreign spoken Korean based on morphemes analysis, Journal of the Korea Institute of Information and
Communication Engineering, 27(6): 688-699, 2023.
M. T. Kim, B. W. Kim, Color Barcode Detection of Complementary Color Barcode-based Optical Camera Communications with a Deep Neural Network, The Transactions of the Korean Institute of Electrical Engineers, 11(4): 241-247, 2022.
S. J. Kim, B. W. Kim, Robot arm control technique using deep reinforcement learning based on dueling and bottleneck structure, The Transactions of the Korean Institute of Electrical Engineers, 70(12): 1906-1913, 2021.
S. J. Kim, B. W. Kim, Dueling double Q-learning based reinforcement learning approach for the flow shop scheduling problem, The Transactions of the Korean Institute of Electrical Engineers, 70(10): 1497-1508, 2021.
L. D. Tamang, B. W. Kim, Optical Camera Communication for Vehicular Applications: A Survey, IEIE Transactions on Smart Processing and Computing, 2021
M. T. Kim, B. W. Kim, Trading Bot Implementation and Performance Comparison Using DQN and DDQN, The Transactions of the Korean Institute of Electrical Engineers, 70(1): 158-167, 2021.
D. N. Choi, B. W. Kim, Farthest Point Selection-based Positioning Technology for V2I Visible Light Communications, The Transactions of the Korean Institute of Electrical Engineers, 69(8): 1247-1254, 2020.
W. Nam, B. W. Kim, Deep Learning based Depression Classification using Environmental Factor Selection, The Transactions of the Korean Institute of Electrical Engineers, 69(7): 1102-1110, 2020.
H.-J. Jeon, S.-K. Yun, B. W. Kim, S.-Y. Jung, Optical Camera Communication Based Lateral Vehicle Position Estimation Scheme Using Angle of LED Street Lights,
The Transactions of the Korean Institute of Electrical Engineers, 66(9): 1416-1423, 2017.
S.-K. Yun, H.-J. Jeon, B. W. Kim, S.-Y. Jung, Inter-vehicular Distance Estimation Scheme Based on VLC using Image Sensor and LED Tail Lamps in Moving Situation,
The Transactions of the Korean Institute of Electrical Engineers, 66(6): 935-941, 2017.
H.-C. Kim, B. W. Kim, S.-Y. Jung, Performance of CSK Scheme for V2I Visible Light Communication,
The Journal of Korean Institute of Communications and Information Sciences, 40(3): 595-601, 2015.
B. W. Kim, D.-W. Song, J.-H. Lee, S.-Y. Jung, VLC Based Positioning Scheme in Vehicle-to-Infra(V2I) Environment,
The Journal of Korean Institute of Communications and Information Sciences, 40(3): 588-594, 2015.
B. W. Kim, A spectral efficient transmission method for ofdm-based power line communications, Journal of the Korea Industrial Information Systems Research, 19(42): 25-32, 2014.
B. W. Kim, Bandwidth-Efficient Precoding Scheme for Downlink Smart Utility Networks, Journal of Korea Multimedia Society, 17(8): 1012-1019, 2014.
J. H. Park, J. H. Jung, B. W. Kim, S. U. Park and D. J. Park, Wireless Digital Packet Communication and Analog Image Communication Systems for Fire Fighting Robots,
ICASE Journal of Control, Automation and Systems Engineering, 13(2): 121-127, 2007.
 

Contact

Changwon National University, Bldg #51, room 326, 309
20 Changwondaehak-ro, Uichang-gu,
Changwon-si, Gyeongsangnam-do, 51140
Rep. of Korea
Office: +82-55-213-3837
E-mail: bwkim@changwon.ac.kr