Ph. D. in Mechanical Engineering, Korea Advanced Institute of Science and
Technology, 2/2000
M.S. in Mechanical Engineering, Seoul National University, 2/1994
B.Sc. in Mechanical Engineering, Seoul National University, 2/1992

2005/10-Present Professor, Dept. of Mechanical and Automotive Engineering,
Seoul National University of Science and Technology
2002/9~2005/8 Assitant Professor, Dept. of Multimedia Engineering, Tongmyoung
Univesrity
2000/2~2002/8 Research Engineer, Advanced Engineering Group, Samsung Corning

Intelligent robots/vehicles
Autonomous navigation
3D acquisition H/W and S/W
Object manipulation using 3D information
Machine vision applications

Programming Language
Programming Language Applications
Fluid Power Control

J.E. Ha, “Grouping Contents on Korean Road Signs,” International Journal of Control, Automation, and Systems, 9(6):1187-1193, 2011.

I.S. Choi and J.E. Ha, “Performance Evaluation of Visual Path Following Algorithm,” Journal of Institute of Control, Robotics and Systems, 17(9):902-907, 2011

J.E. Ha, “A New Method for Detecting Data Matrix under Similarity Transform for Machine Vision Applications,” International Journal of Control, Automation, and Systems, 9(4):737-741, 2011.

I.M. Ahn and J.E. Ha, “Vehicle Identification Number Recognition using Edge Projection and PCA,” Journal of Institute of Control, Robotics and Systems, 17(5):479-483, 2011.

J.E. Ha and I.S. Choi, “Simple method for calibrating omnidirectional stereo with multiple cameras,” Optical Engineering 50(4), 2011.

I.S. Choi and J.E. Ha, “Improvement of Visual Path Following through Velocity Variation,” Journal of Institute of Control, Robotics and Systems, 17(4):375-381, 2011.

J.H. Park, M.S. Shin, D.J. Kang, S.J. Lim, and J.E. Ha., “Improvement of Measurement Accuracy of Strain of Thin Film by CCD Camera with a Template Matching Method using the 2nd-Order Polynomial Interpolation,” International Journal of Modern Physics B, vol. 24, nos. 15&16, pp.3101-3106, 2010.

D.J. Kang, J.H. Park, M.S. Shin, J.E. Ha, and H.J. Lee., “Specimen alignment in an axial tensile test of thin films using direct imaging and its influence on the mechanical properties of BeCu,” Journal of Micromechanics and Microengineering, 20, 2010.

J.E. Ha and and W.H. Lee,“Foreground objects detection using multiple difference image,” Optical Engineering, 49(4), 2010.

J.H. Park, D.J. Kang, M.S. Shin, S.J. Lim, S.C. Yu, K.W. Lee, J.E. Ha, and S.H. Choa, “Easy calibration method of vision system for in-situ measurement of strain of thin films,” Transactions of Nonferrous Metals Society of China, 19, pp. 243-249, 2009.

J.E. Ha, “Automatic detection of chessboard and its applications,” Optical Engineering, 48(6), 2009.

D.J. Kang, S.J. Lim, J.E. Ha, and M.H. Jeong, “A detection cell using multiple points of a rotating triangle to find local planar regions from stereo depth data,” Pattern Recognition Letters, 30, pp. 486-493, 2009.

S.S. Kim, H.S. Kim, and J.E. Ha, “Obstacle Avoidance Algorithms using Stereo," Journal of Institute of Control, Robotics and Systems, 15(1):89-93, 2009.

D.J. Kang, J.E. Ha, and M.H. Jeong, “Detection of Calibration Patterns for Camera Calibration with Irregular Lighting and Complicated Backgrounds,” International Journal of Control, Automation, and Systems, 6(5):746-754, 2008.

J.E. Ha, J.H. Park, and D.J. Kang, “New strain measurement method at axial tensile test of thin films through direct imaging,” Journal of Physics D: Applied Physics, 41, 2008.

J.E. Ha, “Automatic detection of calibration markers on a chessboard,” Optical Engineering, 46(10), 2007.

J.E. Ha, D.J. Kang, M.H. Jeong, and W.H. Lee, “Robust Segmentation of Characters Marked on Surface,” LINCIS 345, pp. 478-487, 2006.

D.R. Uwamahoro, M.H. Jeong, B.J. You, J.E. Ha, and D.J. Kang, “Attentive Person Selection for Human-Robot Interaction,” LNCIS 345, pp. 728-734, 2006.

D.J. Kang, J.E. Ha, and M.H. Jeong, “A Method for Camera Pose Estimation from Objects of a Known Shape,” LNCIS 345, pp. 606-613, 2006.

D.J. Kang, J.E. Ha, and T.J. Lho, “A Fast Method for Detecting Moving Vehicles Using Plane Constraint of Geometric Invariance,” LNCS 3982, pp. 1163-1171, 2006.

J.E. Ha and D.J. Kang,“Fast Candidate Generation for Template Matching Using Two 1-D Edge Projections”, AI2005, LNAI 3809, pp. 1267-1271, 2005.

J.E. Ha and D.J. Kang,”Initialization method for self-calibration using 2-views”, Pattern Recognition, Vol. 38, No. 1, pp. 143-150, 2005.

D.J. Kang, J.E. Ha, and M.H. Jeong,”A polyhedral object recognition algorithm for augmented reality”, LNCS 3331, 2004.

J.E. Ha, D.J. Kang, and M.H. Jeong,”Sequential robust direct motion estimation with equal projective basis”, LNCS 3331, 2004.

J.E. Ha, J.H. Cha, and I.S. Kweon, "A New Lighting System for the Inspection of Check Defect of CRT Panel”, Journal of Control, Automation and Systems Engineering, Vol. 10, No.6, pp.487-493, 2004.

J.E. Ha and I.S. Kweon, "A Calibration Algorithm Using Known Angle”, Journal of Control, Automation and Systems Engineering, Vol. 10, No.5, pp.415-420, 2004.

T.J. Lho, D.J. Kang, and J.E. Ha, “A line-based pose estimation algorithm for 3-D polyhedral object recognition”, LNCS 3046, pp.906-914, 2004.

J.E. Ha and D.J. Kang, “Initialization method for the self-calibration using minimal two images”, LNCS 3046, pp.896-905, 2004.

D.J. Kang, J.E. Ha, and I.M. Ahn, “Object mask segmentation using dynamic programming for poor quality images in automated inspection process”, LNCS 3046, 2004.

D.J. Kang, J.E. Ha, and I.S. Kweon, “Fast Object Recognition using Dynamic Programming from Combination of Salient Line Groups”, Pattern Recognition, Vol.36, No.1, pp.79-90, 2003.

J.E. Ha and I.S. Kweon, “3D structure recovery and calibration under varying intrinsic parameters using known angles”, Pattern Recognition, Vol.34, No.2, pp.351-359, 2001.

J.E. Ha and I.S. Kweon, “Robust direct motion estimation considering discontinuity”, Pattern Recognition Letters, Vol.11, No.21, pp.999-1011, 2000.

J.E.Ha and I.S. Kweon, “A new calibration algorithm using known angles”, Electronics Letters, Vol.36, No.1, pp.20-22, 2000.

J.E. Ha, J.Y. Lee and I.S. Kweon, “Extraction of Tire Information Markings Using a Surface Reflection Model”, Journal of Control, Automation and Systems Engineering, Vol.2, No.4, pp.324-329, 1996.

Kang-Wook Her, Dong-Whan Kim, and Jong-Eun Ha, “Localization of mobile robot using laser range finder and IR landmark,”International Conference on Control, Automation and Systems, 2012

K.W. Her, J.E. Ha, and W.H. Lee, “Steering Angle Determination using CART and Voting,” International Conference on Control, Automation and Systems, 2011.

I.S. Choi and J.E. Ha, “Visual Place Recognition using Single Camera,” International Conference on Control, Automation and Systems, 2011.

J.E. Ha, D.J. Kang, and W.H. Lee, “Learning-based Human Detection using Difference Image in Visual Surveillance,” International Conference on Control, Automation and Systems, 2010.

I.S. Choi and J.E. Ha, “Easy Calibration Method for Omni-stereo Camera System,” International Conference on Control, Automation and Systems, 2010.

Y.T. Cho and J.E. Ha, “Visual Odometry using Cameras Parallel to Ground Plane,” International Conference on Mechatronics and Information Technology, 2009.

J.E. Ha, “Robust Detection of Calibration Markers Using One Circle,” 39th International Symposium on Robotics, 2008.

J.E. Ha, J.B. Shim, and K.H. Choi, “Retrieval of Contextual Information on Korean Road Sign,” International Conference on Control, Automation and Systems, 2008.

Y.H. Lee, M.H. Jeong, J.E. Ha, D.J. Kang, and B.J. You, “A Robust Approach Toward Face Tracking,” ICIC 2007.

J.E. Ha, J.H. Park, J.H. An, and Y.J. Kim, “Large displacement measurement through the synchronization of capacitance-based and image-based system for tensile test of thin films,” International Conference on Advanced Computational Engineering and Experiments, 2007.

J.E. Ha, J.H. Park, J.H. An, and Y.J. Kim, “Image-based displacement measurement system for the characterization of mechanical properties of thin films,” Proceedings of MNC2007, 2007.

M.S. Kim, Y.G. Han, D.J. Kang, J.E. Ha, J.Y. Kim, and T.J. Lho, “Application passband filter of multiply cascade phase-shifted long-period fiber gratings,” International Conference on Control, Automation and Systems, 2005.

J.Y. Kim, D.J. Kang, M.S. Kim, J.E. Ha, T.J. Lho, and J.S. Yoon, “A Pyramidal Mirror System Calibration for Robotic Assembly,” International Conference on Control, Automation and Systems, 2005.

D.J. Kang, J.E. Ha, J.Y. Kim, M.S. Kim and T.J. Lho, “Moving Vehicle Segmentation from Plane Constraint,” International Conference on Control, Automation and Systems, 2005.

J.E. Ha, D.J. Kang, J.Y. Kim, and M.S. Kim, “Fast Stereo Matching Algorithm using Edge Projection,” International Conference on Control, Automation and Systems, 2005.

J.E. Ha, D.J. Kang, and I.S. Kweon, “Motion segmentation using robust direct motion estimation considering discontinuity”, Asian Conference on Computer Vision, pp.330-335, 2004.

D.J. Kang, J.E. Ha, and I.S. Kweon, “3-D pose estimation algorithm for model based vision”, Asian Conference on Computer Vision, pp.115-119, 2004.

JD.J. Kang and J.E. Ha, “A Model-based 3-D Pose Estimation Method from Line Correspondences of Polyhedral Objects,” International Conference on Control, Automation and Systems, 2003.

J.E. Ha and D.J. Kang, “New Initialization method for the robust self-calibration of camera,” International Conference on Control, Automation and Systems, 2003.

J.E. Ha, J.Y. Yang, K.J. Yoon, and I.S. Kweon, “Self-calibration using the linear projective reconstruction”, IEEE International Conference on Robotics and Automation, pp.885-890, 2000.

J.E. Ha and I.S. Kweon, “3D Structure recovery and calibration under varying intrinsic parameters using known angles,”Asian Conference on Computer Vision, 2000.

J.E. Ha and I.S. Kweon, “Self-calibration algorithm under varying cameras using the linear projective reconstruction method,”Asian Conference on Computer Vision, 2000.

J.E. Ha and I.S. Kweon, “Robust direct motion estimation considering discontinuity,”Asian Conference on Computer Vision, 2000.

J.E. Ha and I.S. Kweon, “Calibration and 3D structure recovery under varying cameras using known angles”, IEEE International Conference on Intelligent Robotics and Systems, pp.746-751, 1999.

J.E. Ha, and I.S. Kweon, “A robust method for 3D structure recovery and moving object segmentation”, 4th Korea-Japan Joint Workshop on Computer Vision, 1999.

On-line measuring system for substrate thickness and the method thereof, US6590221, 2003.7.8.