Journal Papers

J. S. Choi and J. K. Lee, “Recurrent neural network for nine-axis IMU-based orientation estimation: 3D orientation estimation performance in disturbed conditions,” Journal of Institute of Control, Robotics and Systems (in Korean), vol. 28, no. 12, pp 1216~1223, Dec. 2022 (SCOPUS)

C. J. Lee and J. K. Lee, “Effects of time-variation of segment-to-joint vectors on accuracy of joint torque in wearable inertial sensor-based inverse dynamics,” Journal of Institute of Control, Robotics and Systems (in Korean), vol. 28, no. 7, pp. 655~663, Jul. 2022 (SCOPUS)

C. J. Lee and J. K. Lee, “Effects of the selection of deformation-related variables on accuracy in relative position estimation via time-varying segment-to-joint vectors,” Journal of Sensor Science and Technology (in Korean), vol. 31, no. 3, pp. 156~162, May 2022 (SCOPUS)

J. S. Choi and J. K. Lee, “Application of artificial neural network for compensation of soft tissue artifacts in inertial sensor-based relative position estimation” Journal of the Korean Society for Precision Engineering, vol. 39, no. 3, pp. 233~241, Mar. 2022 (SCOPUS)

C. J. Lee and J. K. Lee, “Wearable IMMU-based relative position estimation between body segments via time-varying segment-to-joint vectors,” Sensors, vol. 22, no. 6, 2149, Mar. 2022 (SCIE) [Link]

C. J. Lee and J. K. Lee, “Inertial motion capture-based wearable systems for estimation of joint kinetics: a systematic review,” Sensors, vol. 22, no. 7, 2507, Mar. 2022 (SCIE) [Link]

H. B. Lee, C. J. Lee, and J. K. Lee, “Classification of fall direction before impact using machine learning based on IMU raw signals,” Journal of Sensor Science and Technology (in Korean), vol. 31, no. 2, pp. 96~101, Mar. 2022 (SCOPUS)

J. S. Choi, C. J. Lee, and J. K. Lee, “A Kalman filter for inverse dynamics of IMU-based real-time joint torque estimation,” Journal of the Korean Society for Precision Engineering, vol. 39, no. 1, pp. 69~77, Jan. 2022 (SCOPUS)

C. J. Lee and J. K. Lee, “Inertial sensor-based relative position estimation between upper body segments considering non-rigidity of human bodies,” Journal of the Korean Society for Precision Engineering, vol. 38, no. 3, pp. 215~222, Mar. 2021 (SCOPUS)

W. C. Jung and J. K. Lee, “Treadmill-to-overground mapping of marker trajectory for treadmill-based continuous gait analysis,” Sensors, vol. 21, no. 3, 786, Jan. 2021 (SCIE) [Link]

J. S. Choi and J. K. Lee, “Effects of covariance modeling on estimation accuracy in an IMU-based attitude estimation Kalman filter,” Journal of Sensor Science and Technology (in Korean), vol. 29, no. 6, pp. 440~446, Nov. 2020 (SCOPUS)

J. K. Lee, T. H. Jeon, and W. C. Jung, "Constraint-augmented Kalman filter for magnetometer-free 3D joint angle determination," International Journal of Control, Automation and Systems, vol. 18, pp. 2929~2942, Nov. 2020 (SCIE) [Link]

C. J. Lee and J. K. Lee, “IMU-based simultaneous estimation of joint angle and relative position of human body segments via integration of relative acceleration,” Journal of Institute of Control, Robotics and Systems (in Korean), vol. 26, no. 9, pp. 792~801, Sept. 2020 (SCOPUS)

J. K. Lee and C. J. Lee, “Drift reduction in IMU-based joint angle estimation for dynamic motion-involved sports applications,” Journal of the Korean Society for Precision Engineering (in Korean), vol. 37, no. 7, pp. 539~546, July 2020 (SCOPUS)

C. J. Lee and J. K. Lee, “Relative position estimation using Kalman filter based on inertial sensor signals considering soft tissue artifacts of human body segments,” Journal of Sensor Science and Technology (in Korean), vol. 29, no. 4, pp. 237~242, July 2020 (SCOPUS)

W. C. Jung and J. K. Lee, “IMU-based position estimation of lower limbs via a combination of kinematic modeling with minimal utilization of magnetometers,” Journal of Institute of Control, Robotics and Systems (in Korean), vol. 26, no. 4, pp. 222~233, Apr. 2020 (SCOPUS)

J. K. Lee and T. H. Jeon, “Magnetic condition-independent 3D joint angle estimation using inertial sensors and kinematic constraints,” Sensors, vol. 19(24), 5522, Dec. 2019 (SCIE) [Link]

W. C. Jung and J. K. Lee, “Comparison of drift reduction methods for pedestrian dead reckoning based on a shoe-mounted IMU,” Journal of Sensor Science and Technology, vol. 28, no. 6, pp. 345~354, Nov. 2019 (SCOPUS)

J. K. Lee, “A parallel attitude-heading Kalman filter without state-augmentation of model-based disturbance components,” IEEE Transactions on Instrumentation and Measurement, vol. 68, no. 7, pp. 2668~2670, July 2019 (SCI) [Link]

T. H. Jeon and J. K. Lee, “Kinematic constraint-projected Kalman filter to minimize yaw estimation errors induced by magnetic distortions,” Journal of the Korean Society for Precision Engineering (in Korean), vol. 36, no. 7, pp. 659~665, July 2019 (SCOPUS)

W. C. Jung and J. K. Lee, “Constraint-combined adaptive complementary filter for accurate yaw estimation in magnetically disturbed environments,” Journal of Sensor Science and Technology, vol. 28, no. 2, pp. 81~87, Mar. 2019 (SCOPUS)

J. K. Lee, “Estimation of vertical displacement based on inertial sensor signals combined with joint constraint,” Journal of the Korean Society for Precision Engineering (in Korean), vol. 36, no. 3, pp. 233~238, Mar. 2019 (SCOPUS)

J. K. Lee and M. J. Choi, “Robust inertial measurement unit-based attitude determination Kalman filter for kinematically constrained links,” Sensors, vol. 19(4), 768, Feb. 2019 (SCIE) [Link]

J. K. Lee and W. C. Jung, “Comparison between two coordinate transformation-based orientation alignment methods,” Journal of Sensor Science and Technology (in Korean), vol. 28, no. 1, pp. 30~35, Jan. 2019 (SCOPUS)

T. H. Jeon and J. K. Lee, “IMU-based joint angle estimation under various walking and running conditions,” Journal of the Korean Society for Precision Engineering (in Korean), vol. 35, no. 12, pp. 1199~1204, Dec. 2018 (SCOPUS)

J. K. Lee and W. C. Jung, “Quaternion-based local frame alignment between an inertial measurement unit and a motion capture system,” Sensors, vol. 18(11), 4003, Nov. 2018 (SCIE) [Link]

J. K. Lee and M. J. Choi, “Effect of strapdown integration order and sampling rate on IMU-based attitude estimation accuracy,” Sensors, vol. 18(9), 2775, Aug. 2018 (SCIE) [Link]

J. K. Lee and T. H. Jeon, “Constrained AHRS Kalman filter to reduce magnetic distortion-induced uncertainty in heading estimation,” Journal of Institute of Control, Robotics and Systems (in Korean), vol. 24, no. 5, pp. 431~437, May 2018 (SCOPUS)

M. J. Choi and J. K. Lee, “Inertial sensor-based attitude estimation combining a kinematic constraint for elimination of acceleration-induced inaccuracy,” Transactions on Korean Society of Mechanical Engineers A (in Korean), vol. 42, no. 3, pp. 263~269, Mar. 2018 (SCOPUS)

M. J. Choi and J. K. Lee, “IMU-based attitude estimation Kalman filter with kinematic constraint projection,” Journal of Institute of Control, Robotics and Systems (in Korean), vol. 24, no. 2, pp. 175~181, Feb. 2018 (SCOPUS)

T. H. Jeon and J. K. Lee, “Comparison between ellipsoid-fitting calibration techniques for azimuth-estimating three-axis magnetometer,” Journal of the Korean Society for Precision Engineering (in Korean), vol. 35, no. 1, pp. 79~85, Jan. 2018 (SCOPUS)

J. K. Lee and T. H. Jeon, “Ellipsoid-fitting magnetometer calibration method considering misalignment and soft-iron distortion,” Journal of Institute of Control, Robotics and Systems (in Korean), vol. 23, no. 12, pp. 1036~1042, Dec. 2017 (SCOPUS)

J. K. Lee, “Verification of two least-squares methods for estimating center of rotation using optical marker trajectory,” Journal of Sensor Science and Technology, vol. 26, no. 6, pp. 371~378, Nov. 2017

J. K. Lee and M. J. Choi, “Magnetic disturbance model-embedded heading estimation filter for time-varying magnetic environments,” Journal of Sensor Science and Technology (in Korean), vol. 26, no. 4, pp. 286~291, July 2017

T. H. Jeon and J. K. Lee, “Weighted least square-based magnetometer calibration method robust in roll-pitch limited conditions,” Journal of Sensor Science and Technology (in Korean), vol. 26, no. 4, pp. 259~265, July 2017

M. J. Choi and J. K. Lee, “Effect of disturbance modeling on IMMU-based orientation estimation accuracy,” Transactions on Korean Society of Mechanical Engineers A (in Korean), vol. 41, no. 8, pp. 783~789, Aug. 2017 (SCOPUS)

J. K. Lee and M. J. Choi, “A sequential orientation Kalman filter for AHRS limiting magnetic disturbance to heading estimation,” Journal of Electrical Engineering & Technology, vol. 12, no. 4, pp. 1675~1682, July 2017 (SCIE) [Link]

M. J. Choi and J. K. Lee, “An order-switching magnetic distortion compensation mechanism for accurate azimuth estimation,” Journal of Institute of Control, Robotics and Systems (in Korean), vol. 23, no. 7, pp. 552~558, July 2017 (SCOPUS)

J. S. Kang, J. K. Lee, and D. S. Bae, “A Chassis-based kinematic formulation for flexible multibody vehicle dynamics,” International Journal of Mechanics Based Design of Structures and Machines, vol. 45, no. 1, pp. 12~24, Feb. 2017 (SCI) [Link]

S. I. Ji and J. K. Lee, “IMU-barometric sensor-based vertical velocity estimation algorithm for drift error minimization,” Journal of Institute of Control, Robotics and Systems (in Korean), vol. 22, no. 11, pp. 937~943, Nov. 2016 (SCOPUS)

J. K. Lee, “Comparison of acceleration-compensating mechanisms for improvement of IMU-based orientation determination,” Transactions on Korean Society of Mechanical Engineers A (in Korean), vol. 40, no. 9, pp. 783~790, Sept. 2016 (SCOPUS)

J. K. Lee, “A parallel Kalman filter for estimation of magnetic disturbance and orientation using a nine-axis inertial/magnetic sensor,” Transactions on Korean Society of Mechanical Engineers A (in Korean), vol. 40, no. 7, pp. 659~666, July 2016 (SCOPUS)

J. K. Lee, “A two-step Kalman/complementary filter for estimation of vertical position using an IMU-barometer system,” Journal of Sensor Science and Technology (in Korean), vol. 25, no. 3, pp. 202~207, May 2016 [Link], [Link] --> This is interesting.

J. K. Lee, S. N. Robinovitch, and E. J. Park, “Inertial sensing-based pre-impact detection of falls involving near-fall scenarios,” IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol. 23, no. 2, pp. 258~266, March 2015 (SCIE) [Link]

S. Zihajehzadeh, T. J. Lee, J. K. Lee, R. Hoskinson, and E. J. Park, “Integration of MEMS inertial and pressure sensors for vertical trajectory determination,” IEEE Transactions on Instrumentation and Measurement, vol. 64, no. 3, pp. 804~814, March 2015 (SCI) [Link]

J. K. Lee, “Kalman filter for estimation of sensor acceleration using six-axis inertial sensor,” Transactions on Korean Society of Mechanical Engineers A (in Korean), vol. 39, no. 2, pp. 179~185, Feb. 2015 (SCOPUS)

J. K. Lee, “Determination of fall direction before impact using support vector machine,” Journal of Sensor Science and Technology (in Korean), vol. 24, no. 1, pp. 47~53, Jan. 2015

J. K. Lee, “Study on vertical velocity-based pre-impact fall detection,” Journal of Sensor Science and Technology (in Korean), vol. 23, no. 4, pp. 251~258, July 2014

J. K. Lee, C. H. Lee, and D. S. Bae, “A parametric generalized coordinate formulation for mechanical joint elements in dynamic systems,” Proc. Institute of Mechanical Engineers, Part C, Journal of Mechanical Engineering Science, April 2014 (SCI) [Link]

J. K. Lee, J. S. Kang, and D. S. Bae, “An efficient real-time vehicle simulation method using chassis-based kinematic formulation,” Proc. Institute of Mechanical Engineers, Part D, Journal of Automobile Engineering, vol. 228, no. 3, pp. 272~284, Feb. 2014 (SCI) [Link]

J. K. Lee, C. H. Lee, and D. S. Bae, “Use of parametric generalized coordinates for kinematic constraint formulation of low degree-of-freedom joints,” Transactions on Korean Society of Mechanical Engineers A (in Korean), vol. 37, no. 10, pp. 1261~1267, Oct. 2013 (SCOPUS)

J. K. Lee, E. J. Park, and S. N. Robinovitch, “Estimation of attitude and external acceleration using inertial sensor measurement during various dynamic conditions,” IEEE Transactions on Instrumentation and Measurement, vol. 61, no. 8, pp. 2262~2273, Aug. 2012 (SCI) [Link]

J. K. Lee and E. J. Park, “3D spinal motion analysis during staircase walking using an ambulatory inertial and magnetic sensing system,” Medical & Biological Engineering & Computing, vol. 49, no. 7, pp. 755~764, July 2011 (SCI) [Link]

J. K. Lee, G. T. Desmoulin, A. H. Kahn, and E. J. Park, “Comparison of 3D spinal motions during stair-climbing between individuals with and without low back pain,” Gait & Posture, vol. 34, no. 2, pp. 222~226, June 2011 (SCI) [Link]

J. K. Lee and E. J. Park, “Quasi real-time gait event detection using shank-attached gyroscopes,” Medical & Biological Engineering & Computing, vol. 49, no. 6, pp. 707-712, June 2011 (SCI) [Link]

J. K. Lee and E. J. Park, “Minimum-order Kalman filter with vector selector for accurate estimation of human body orientation,” IEEE Transactions on Robotics, vol. 25, no. 5, pp. 1196-1201, Oct. 2009 (SCI) [Link]

J. K. Lee and E. J. Park, “A fast quaternion-based orientation optimizer via virtual rotation for human motion tracking,” IEEE Transactions on Biomedical Engineering, vol. 56, no. 5, pp. 1574-1582, May 2009 (SCI) [Link]