Digital Media Processing (DMP)

Research Interests : Teaching Technology, Image Processing, 3D Computer Graphics

toslide.com : real-time interactions between a lecturer and students or audience

Papers 

• Real-Time Interactions with Photos and Texts in Large Classrooms, IEICE Trans. Inf. & Syst. vol. E108-D, no. 1, pp. 110 - 113, January 2025.

• Synchronous Sharing of Lecture Slides and Photo Messaging during Real-Time Online Classes, IEICE Trans. Inf. & Syst. vol. E105-D, no.7, pp.1348 - 1351, July 2022. 

• A Framework for Synchronous Remote Online Exams, IEICE Trans. Inf. & Syst. vol. E105-D, no.7, pp.1343 - 1347 July 2022. 

• APS: Audience Presentation System Using Mobile Devices, IEICE Tran. Inf. & Syst., vol. E102–D, no.9, pp 1887 - 1889, September 2019.

• Data Hiding in Spatial Color Images on Smartphones by Adaptive R-G-B LSB Replacement, IEICE Tran. Inf. & Syst., vol. E102–D, no.8, pp 2163 - 2167, August 2019.

• SmartUI: Resource-Saving and Editable Smartphone User Interface for Fast Remote PC Control, IEICE Tran. Inf. & Syst., vol. E99–D, no.7, pp 1852 - 1861, July 2016.

• A Practical System for Instant 3D Games Using Quizzes, IEICE Tran. Inf. & Syst., vol. E99–D, no.2, pp 424 - 434, February 2016.

• A hierarchical framework for large 3D mesh streaming on mobile systems, Multimed Tools Appl (2016) 75:1983–2004, 2014

• Interactive Progressive Image Transmission for Realtime Applications,  IEEE Transactions on Consumer Electronics, Vol. 56, No. 4, pp.2438 - 2444  November 2010.

• Random Accessible Mesh Compression Using Mesh Chartification, IEEE Transactions on Visualization and Computer Graphics, vol. 15, no. 1, pp. 160 - 173, JANUARY/FEBRUARY 2009.

• A Distance-Based Compression of 3D Meshes for Mobile Devices, IEEE Transactions on Consumer Electronics, Vol. 54, No. 3, pp. 1398 - 1405  August 2008. 

• Parameterization of 3D Surface Patches by Straightest Distances, ICCS 2007, Part II, LNCS 4488, pp. 73–80, 2007.

• Interactive Composition of 3D Faces for Virtual Characters, Edutainment 2007, LNCS 4469, pp. 182–190, 2007.

• Straightest Paths on Meshes By Cutting Planes, Geometric Modeling and Processing-GMP 2006: 4th Inter. Conf., Proceedings 4, pp. 609 - 615, July 2006. 

• Geodesics-Based One-to-One Parameterization of 3D Triangle Meshes, IEEE Multimedia, pp. 27- 33, January-March, 2005.

• Adaptive vertex chasing for the lossless geometry coding of 3D meshes, Advances in Multimedia Information Processing-PCM 2005: 6th Pacific Rim Conference on Multimedia, pp. 108 - 119, Korea, November 2005.

• Progressive Encoding of Complex Isosurfaces, ACM Transactions on Graphics, Vol. 22, Issue 3, pp. 471–476, (Siggraph) 2003.

• Angle-Analyzer: A Triangle-Quad Mesh Codec, Vol. 21, Number 3, Eurographics 2002.

• Generalized Barycentric Coordinates on Irregular Polygons, Journal of Graphics Tools, Volume 7, Issue 1, pp. 13–22, November 2002.

• Meshes on Fire, Computer Animation and Simulation 2001 pp. 75–84.

• Electric Elves: Immersing an agent organization in a human organization, the 2000 AAAI Fall Symposium/fall-2000-04.

• DON’T CANCEL MY BARCELONA TRIP  : Adjusting autonomy of agent proxies in human organizations, the 2000 AAAI Fall Symposium/fall-2000-04.

Graduated Students

• PhD : Daeyoung Kim (3D Systems)

• MS : Sungyeol Lee (SAPs Korea), Jongwon Kim(Samsung Elec), Nakkwon Lim (Nexon), Jiro Park (Game Co.)

• BS : 추두연 (Samsung Elec), 박수진(벤처), 한준희(Kakao), 배수찬(NHN), 신행진(Samsung Elec), 최지현(LG Electronics), 이승연 (Samsung Elec), 권순관(벤처), 주성호(Hyundai Car), 최아성(Kakao), 이주암, 한주덕, 정성윤, 이윤지(Hyundai Car)

• Visual Design : 홍상혁, 김미주

Experience 

• 2003 - Present: Dept. of Computer Engineering, Professor 

• 1993 - 1999 : Korea Telecom R&D Group, Technical Staff

• 1992 - 1993 : BisonTek 3D Director (Daejon Expo93 POSCO 3D Animation Film)

Education

• 1999 - 2002 University of Southern California, PhD in Computer Science

• 1989 - 1992 San Jose State University, MS in Computer Science

• 1982 - 1986 Yonsei University, BS in Mathematics