Prof. Jongtaek Oh

Park, T., Chu J, Seo, T, and J. Oh. "A Study on Technology for Global Coordinate Estimation of Camera using QR Code." The Journal of the Institute of Internet, Broadcasting and Communication, 25.2 (2025 Apr): 87-93. * Corresponding Author

Oh, J. and Kim, S. “Azimuth estimation based on CNN and LSTM for geomagnetic and inertial sensors data.” ICT Express, 10 (2024 Jun): 626-631. * First & Corresponding Author

Oh, J. and Kim, H. “A camera center estimation based on perspective one point method.” IEEE Trans. Intelligent Vehicles, 9.1 (2024 Jan): 2940-2945. * First & Corresponding Author

Kim, B. and Oh, J. “A study on improvement technology of image resolution using mobile camera.” The Journal of the Institute of Internet, Broadcasting and Communication, 23.4 (2023 Aug): 93-98. * Corresponding Author

Kim, J., Oh, J., and Um, J. “A study on preprocessing techniques of data in WiFi fingerprint.” The Journal of the Institute of Internet, Broadcasting and Communication, 23.2 (2023 Apr): 113-118. * Corresponding Author

Oh, J. and Kim, S. “A study on estimating geomagnetic azimuth using LSTM.” The Journal of the Institute of Internet, Broadcasting and Communication, 22.6 (2022 Dec): 137-141. * Corresponding Author

Oh, J. and Kim, H. “A study on estimating skill of smartphone camera position using essential matrix.” The Journal of the Institute of Internet, Broadcasting and Communication, 22.6 (2022 Dec): 143-148. * Corresponding Author

Oh, J. and Yoon. S. “A study on estimating smartphone camera position.” The Journal of the Institute of Internet, Broadcasting and Communication, 21.6 (2021 Dec): 99-104. * Corresponding Author

Oh, J. and Han. J. “Pedestrian travel distance estimation using optical flow and smartphone sensors.” IEEE Trans. Instrumentation and Measurement, 70 (2021 Jan): 1-8. * First & Corresponding Author

Oh, J. and Kim. M. “Method to determine initial aiming azimuth accuracy using acceleration, gyroscope, and geomagnetic sensors.” ICT Express, 6.3 (2020 Jun): 117-120. * First & Corresponding Author

Jung, K. and Oh, J. "A study on the estimation of smartphone movement distance using optical flow technology on a limited screen." The Journal of the Institute of Internet, Broadcasting and Communication, 19.4 (2019 Aug): 71-76. * Corresponding Author

Do, H. and Oh, J. "A study on smartphone indoor navigation technology using extended Kalman filter." The Journal of the Institute of Internet, Broadcasting and Communication, 19.1 (2019 Feb): 133-138. * Corresponding Author

Lee, D. and Oh, J. "A study on magnetic sensor calibration for indoor smartphone position tracking." The Journal of the Institute of Internet, Broadcasting and Communication, 18.6 (2018 Dec): 229-235. * Corresponding Author

Oh, J. and Kim, J. "Adaptive K-nearest neighbour algorithm for WiFi fingerprint positioning." ICT Express, 4.2 (2018 Jun): 91-94. * First & Corresponding Author

Lee, K., Kim, K. and Oh, J. "A study on step number detection using smartphone sensors for position tracking." The Journal of the Institute of Internet, Broadcasting and Communication, 18.3 (2018 Jun): 119-125. * Corresponding Author

Oh, J. and Um, J. "Acoustic signal-based indoor global coordinates system for smartphones." IEEE Sensors Journal, 18.8 (2018 Feb): 3248-3254. * First Author

Oh, J. "A study on average range setting in adaptive KNN of WiFi fingerprint location estimation method." The Journal of the Institute of Internet, Broadcasting and Communication, 18.1 (2018 Feb): 129-134. * First & Corresponding Author

 Oh, J. "A study on the weight of W-KNN for WiFi fingerprint positioning." The Journal of the Institute of Internet, Broadcasting and Communication, 17.6 (2017 Dec): 105-111. * First & Corresponding Author

 Oh, J. "A study on the design of inaudible acoustic signal in acoustic communications and positioning system." The Journal of the Institute of Internet, Broadcasting and Communication, 17.2 (2017 Apr): 191-197. * First & Corresponding Author

Oh, J. "A study on positioning error according to signal sampling rate in TDOA positioning system." The Journal of the Institute of Internet, Broadcasting and Communication, 16.6 (2016 Dec): 191-196. * First & Corresponding Author

Oh, J. "A study on multi-hop positioning error in indoor positioning system." The Journal of the Institute of Internet, Broadcasting and Communication, 16.2 (2016 Apr): 123-129. * First & Corresponding Author

Oh, J. "A study on dynamic trigger threshold in indoor positioning system." The Journal of the Institute of Internet, Broadcasting and Communication, 15.6 (2015 Dec): 155-161. * First & Corresponding Author

Oh, J. "A study on global positioning system of smart phone in indoor." The Journal of the Institute of Internet, Broadcasting and Communication, 15.2 (2015 Apr): 151-156. * First & Corresponding Author

 Oh, J. "A study on PDOP due to the position error of acoustic sensors in the 3D TDOA positioning system." The Journal of the Institute of Internet, Broadcasting and Communication, 15.1 (2015 Feb): 199-205. * First & Corresponding Author

Oh, J. "A study on multipath effect mitigation using trigger signal in the 3D TDOA positioning system." The Journal of the Institute of Internet, Broadcasting and Communication, 14.4 (2014 Aug): 149-155. * First & Corresponding Author

Oh, J. "Optimum design of the microphone sensor array for 3D TDOA positioning system." The Journal of the Institute of Internet, Broadcasting and Communication, 14.1 (2014 Feb): 31-36. * First & Corresponding Author

Oh, J.T. "3D indoor positioning system based on smartphone." The Journal of Korean Institute of Communications and Information Sciences, 38.12 (2013 Dec): 1126-1133. * First & Corresponding Author

Oh, J. "A study on the relative positioning technology based on range difference and root selection." The Journal of the Institute of Internet, Broadcasting and Communication, 13.5 (2013 Oct): 85-91. * First & Corresponding Author

 Oh, J.T. "Personal environment service and technology based on smart phone." The Journal of Korean Institute of Communications and Information Sciences, 38.5 (2013 May): 454-463. * First & Corresponding Author

Oh, J. "A study on relative positioning based on acoustic signal of Smart phone." The Journal of the Institute of Internet, Broadcasting and Communication, 13.1 (2013 Feb): 229-234. * First & Corresponding Author

 Oh, J. "A study on the effect of redundant transmission and interleaving for WLAN Internet local broadcasting." The Journal of the Institute of Internet, Broadcasting and Communication, 12.6 (2012 Dec): 43-48. * First & Corresponding Author

Oh, J.T. "Modified TCP with post-checksum field and limited error control algorithm for memory-limited tiny sensor node." The Journal of the Institute of Internet, Broadcasting and Communication, 12.4 (2012 Aug): 141-145. * First & Corresponding Author

Oh, J.T. "A study on the effect of redundant and repetitive transmission for wireless Internet local broadcasting." The Journal of Korean Institute of Communications and Information Sciences, 36.12B (2011 Dec): 1468-1473. * First & Corresponding Author

Oh, J.T. "A study on the data frame length and repetitive transmission for IP local broadcasting." The Journal of the Institute of Internet, Broadcasting and Communication, 11.3 (2011 Jun): 123-126. * First & Corresponding Author

 Oh, J.T. "A study for the PES service system architecture." The Journal of Korean Institute of Communications and Information Sciences, 36.5B (2011 May): 471-476. * First & Corresponding Author

Oh, J. and Haas, Z.J. "Personal environment service based on the integration of mobile communications and wireless personal area networks." IEEE Communications Magazine, 48.6 (2010 Jun): 66-72. * First Author

Oh, J.T. "A study on the required frequency bandwidth for personal environment service." The Journal of Korean Institute of Communications and Information Sciences, 34.11A (2009 Nov): 898-903. * First & Corresponding Author

Oh, J.T. "Efficient TCP/IP transmission technology in wireless sensor network for ITS applications." The Journal of the Korea Institute of Intelligent Transport Systems, 8.1 (2009 Feb): 76-81. * First & Corresponding Author

Oh, J.T. "Internet push service using tunneling technology." The Journal of the Korea Institute of Intelligent Transport Systems, 7.4 (2008 Aug): 130-135. * First & Corresponding Author

Oh, J. and Haas, Z.J. "A scheme for location-based Internet broadcasting and its applications." IEEE Communications Magazine, 45.11 (2007 Nov): 136-141. * First Author

Oh, J. "Phase delay quantization error analysis at a focal plane for an ultrasonic annular arrays imaging system." IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 90.5 (2007 May): 1105-1106. * First & Corresponding Author

Oh, J.T. "Efficient wireless Internet local broadcasting system for WLAN and WiBro networks." The Journal of Korean Institute of Communications and Information Sciences, 31.1B (2006 Jan): 39-45. * First & Corresponding Author

 Oh, J. "Data throughput measurement of wireless LAN of IEEE 802.11 g in high speed mobile environment." IEICE Transactions on Communications, 87.12 (2004 Dec): 3798-3800. * First & Corresponding Author

Oh, J. "Frame error reduction method by variable span CRC coding for ITS dedicated short range communication." IEICE Transactions on Communications, 87.8 (2004 Aug): 2391-2393. * First & Corresponding Author

 Oh, J.T. "Data throughput measurement for wireless LAN of IEEE802. 11g in mobile environment." The Journal of Korea Information and Communications Society, 29.3A (2004 Mar): 288-292. * First & Corresponding Author

Oh, J.T. and Lee, B.G. "Wireless Internet Broadcasting System for LBS." Journal of Korea Spatial Information System Society, 5.1 (2003 Jun): 75-81. * First Author

 Oh, J.T. "Wireless Internet local broadcasting system using IP address translation." The Journal of Korean Institute of Communications and Information Sciences, 28.3B (2003 Mar): 217-223. * First & Corresponding Author

  Oh, J. "Radio multi-path propagation measurement and analysis at 2.4 GHz at roadside." IEICE Transactions on Communications, 85.11 (2002 Nov): 2551-2553. * First & Corresponding Author

Oh, J.T. and Cho, D.K. "A measurement of multi-path propagation characteristics for 2.4 GHz radio at roadside." The Journal of Korean Institute of Communications and Information Sciences, 27.1B (2002 Jan): 108-113. * First Author

 Oh, J.T. and Lee, B.G. "A study on integration of communication networks for ITS." Journal of Korea Spatial Information System Society, 3.1 (2001 Jun): 63-73. * First Author

 Park, J.S., Cho, D.H., Oh, J.T. and Lee, B.T. “An Improved link access scheme using carrier sensing mechanism in DSRC.” The Journal of Korean Institute of Communications and Information Sciences, 24.10 (1999 Oct): 1453-1461.

Oh, B.J., Kwak, H.H., Jeong, J.U., Lee, E.S., Won, Y.D., Cho, W.H., Lee, Y.J., Jee, G.I., Lee, J.G. and Oh, J.T. “Positioning using multi-reference station DGPS.” Journal of the Korean Society Aeronautical and Space Sciences, 26.6 (1998 Oct): 115-123.

Chung, K.S., Oh, J.T., Kang, C.G. and Tchah, K.H. “Analytical computation of the reverse link interference with unequal cell loading in CDMA system.” The Journal of Korean Institute of Communications and Information Sciences, 23.4 (1998 Apr): 901-913.

 Hong, J.S., Jee, G.I., Lee, J.G. and Oh, J.T. "Design and implementation of a navigation filter for GPS receiver." The Journal of Advanced Navigation Technology, 1.1 (1997 Dec): 11-22.

 Oh, J.T. and Park, S.B. "Acoustic field analysis in lossy nonhomogeneous medium by the beam propagation method." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 42.1 (1995 Jan): 144-146. * First Author

Oh, J.T. and Park, S.B. "Iterative design of a lensed transducer–reflector system for underwater acoustic imaging." The Journal of the Acoustical Society of America, 93.2 (1993 Feb): 1166-1174. * First Author

Oh, J.T., Park, J.C. and Park, S.B. "Continuous two-way focusing in ultrasonic annular array system without significant reduction in frame rate." Electronics Letters, 28.23 (1992 Nov): 2179-2180. * First Author

Oh, J.T., Kwon, S.J. and Park, S.B. “Detection of underwater target using adaptive filter.” The Journal of the Acoustical Society of Korea, 8.4 (1989 Aug): 29-38.