Jae-In Hwang

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General Info.

Left

Ph.D in Computer Science and Engineering

Senior Research Scientist

IMC(Imaging Media Center)

KIST(Korea Institute of Science and Technology)

E-mail: hji@imrc.kist.re.kr

Tel: +82-2-958-5762(KOR)

Education

B.E : Computer Science and Engineering, POSTECH, Korea (1998)

M.S : Computer Science and Engineering, POSTECH, Korea (2000)

Ph.D : Computer Science and Engineering, POSTECH, Korea (2007)

Career

[2008 - present] Research Scientist, Senior Research Scientist at Korea Institute of Science and Technology

[2009 - present] Assistant Professor at Univ. Science and Technology

[2010 - present] Adjunct Professor at Korea University

Research Interests

Mobile mixed reality, Mobile 3D user interfaces

Classes

Fall 2008 : Introduction to Augmented Reality

Fall 2009 : Introduction to Mobile Augmented Reality

Academic Activities

  • IPC

ISMAR 2010, ISMAR 2009, ISMAR 2008

Ubicomp 2010, UbiComp 2009

Pervasive 2009

  • Committee

ISMAR 2010 - Local Arrangement Chair

KJMR 2010 - Organizing Chair

ISUVR 2007 - General Chair

Korea HCI (2010 ~)

  • Invited Talks

Awards

Research Topics

  • Handheld Augmented Reality


  • Handheld Virtual Reality

Hand-held computing devices are ubiquitous and have become part of our lives these days. Moreover, hand-held devices are also increasingly being equipped with special sensors and non-traditional displays. As such, it raises the question of whether such a small and reduced device could serve as an effective virtual reality (VR) platform and provide sufficient immersion and presence, e.g. through multimodal interaction. In this research, we address this question by adding multimodal functionalities such as motion based interaction, user-display dependent rendering, autostereoscopic small display, vibrotactile feedback and etc. Also we show the feasibility of hand-held virtual reality by comparing with other VR systems.

See video (http://home.postech.ac.kr/~jane/paper/camera_based_interface1.wmv)

  • Teleoperation in Augmented Reality

In a collaborative system, the level of co-presence, the feeling of being with the remote participants in the same working environment, is very important for natural and efficient task performance. One way to achieve such copresence is to recreate the participants as real as possible, for instance, with the 3D whole body representation. In this research, we introduce a method to recreate and immerse tele-operators in a collaborative augmented reality (AR) environment. The method starts with capturing the 3D cloud points of the remote operators and reconstructs them in the shared environment in real time. In order to realize interaction among the participants, the operator's motion is tracked using a feature extraction and point matching (PM) algorithm. With the participant tracking, various types of 3D interaction becomes possible.


  • Perceptual presence modeling and measurement
  • Rehabilitation using virtual reality

The advantages that using VR techniques for rehabilitation are easy of development, easy of modification, safeties and etc. In this research, especially we proposed the system for 3D motion rehabilitation with multimodal sensory effects such as vibro-tactile feedback, motion based interaction and etc.


  • Virtual Music Environment

Recent progress in digital music has enabled some form of active music appreciation. In particular, with the advent of affordable VR technologies, many researchers are experimenting with the three-dimensional and multimodal interfaces to control music and replace the current keyboard/mouse-based (piano or computer) interface for computer/electronic music. Given such a background, we proposes and demonstrates the concept of the Virtual Music Environment (VME), a generalization of a virtual music instrument, in which the virtual world itself acts as a source of multimodal (e.g. visual, audio, haptic) feedback, and at the same time, a place of interaction.

Projects


Publications

  • International Journals/Conferences
    • 2010
      • Seokhee Jeon, Jane Hwang, Gerard J. Kim, and Mark Billinghurst, “Interaction with Large Ubiquitous Displays Using Camera-Equipped Mobile Phones,” Personal and Ubiquitous Computing, vol. 12, no. 2, pp. 83-94, 2010. (SCIE)
    • 2009
      • Ig-Jae Kim, In Jun Song, Jane Hwang, Sang Chul Ahn, Hyoung Gon Kim, Heedong Ko, "MART-MAF: Media File Format for AR Tour Guide Service", IEEE International Workshop on Multimedia Information Processing and Retrieval
      • Jane Hwang, Ig-Jae Kim, Donghoon Kang, Sang Chul Ahn, "Motion-based Interaction for Mirror World in Mobile Devices", HCI International 2009
      • Ig-Jae Kim, Jane Hwang, Sang Chul Ahn, Hyong Gon Kim, "In-Situ Annotation for AR Tour Service", KJMR 2009
    • 2008
      • Jane Hwang, Sangyup Lee, Sang Chul Ahn, Hyoung-gon Kim, "Augmented Robot Agent: Enhancing Co-Presence of the Remote Participant", IEEE and ACM International Symposium on Mixed and Augmented Reality, Sep, 2008
      • Ig-Jae Kim, Sang-yup Lee, Jane Hwang, Sang Chul Ahn, Hyoung Gon Kim, "Tangible Telemeeting System with Tangible Video Avatar and Large Display", 39th International Symposium on Robotics, 2008
    • 2007
      • Sang-Yup Lee, Jane Hwang, Sang C. Ahn, Myo-Taeg Lim, and Hyoung-Gon Kim, "Tangible Video Avatar for Natural Tele-Interaction", TSI Workshop, 2007.
      • Jane Hwang, Gerard Jounghyun Kim, Sang Yup Lee, Sang Chul Ahn, Hyung Gon Kim, "Towards Gapless Tangible Space", TSI Workshop, 2007.
      • Sunghoon Yim, Jane Hwang, Seungmoon Choi, and Gerard J. Kim, "Image Browsing in Mobile Device Using User Motion Tracking," In Proceedings of the International Symposium on Ubiquitous Virtual Reality, 2007.
      • Gabjong Han, Jane Hwang, Seungmoon Choi, and Gerard J. Kim, "AR Pottery: Experiencing Pottery Making in the Augmented Space," Lecture Notes on Computer Science (Virtual Reality, HCII 2007), vol. 4563, pp. 642–650, 2007.
    • 2006
      • Jane Hwang, Jaehoon Jung, Sunghoon Yim, Jaeyoung Cheon, Sungkil Lee, Seungmoon Choi, and Gerard J. Kim, "Requirements, Implementation and Applications of Hand-held Virtual Reality," International Journal of Virtual Reality, Vol.5. No.2, pp.59-66, 2006.
      • Hwang, J. Jung, J., Kim, G. J.(2006). " Manipulation of Field of View for Hand-held Virtual Reality" 16th International Conference on Artificial Reality and Telexistence (LNCS).
      • Hwang, J., Jung, J., Kim, G. J.(2006). " Hand-held Virtual Reality: A Feasibility Study" ACM VRST 2006
      • Jeon, S. Hwang, J., Kim, G. J.(2006). " Interaction Techniques in Large Display Environments using Hand-held Devices" ACM VRST 2006.
      • Hwang, J., Kim, N., Kim, G. J.(2006). " Immersing Tele-operators in Collaborative Augmented Reality" International Symposium on Visual Computing 2006
      • Hwang, J., Kim, G. J., Kim, N.(2006). " Camera based Relative Motion Tracking for Hand-held Virtual Reality" NICOGRAPH International 2006 .Seoul, South Korea, June 2-3. 2006
      • Feintuch, U., Raz, Liat., Hwang, J., Jang, Y., Josman, N., Katz, N., Kizony, R., Rand, D., Rizz, A.A., Shahar, M. and Weiss, P.L.(2006). " Integrating haptic-tactile feedback into a video capture based VE for rehabilitation" CyberPsychology & Behavior. Apr 2006, Vol. 9, No. 2: 129-132
    • 2005
      • Feintuch, U., Raz, Liat., Hwang, J., Jang, Y., Josman, N., Katz, N., Kizony, R., Rand, D., Rizz, A.A., Shahar, M. and Weiss, P.L.(2005). " Integrating haptic-tactile feedback into a video capture based VE for rehabilitation" 4th International Workshop on Virtual Rehabilitation . Catalina Island, CA. USA., Sep 19-21. 2005
      • Rizzo, A.A., Kim, G.J., Yeh S. C., Thiebaux, M., Hwang, J., Buckwalter, G.(2005). " Development of a Benchmarking Scenario for Testing 3D User Interface Devices and Interaction Methods ," The Proceedings of the 11th International Conference on Human Computer Interaction. Las Vegas, USA, July 22-27. 2005.
    • 2004
      • Rizzo, A.A., Buckwalter, J.G., Bowerly, T., Yeh, S., Hwang, J., Thiebaux, M. & Kim, G. J. (2004). "Virtual Reality Applications for Assessment and Rehabilitation of Cognitive and motor Processes. " 15th Congress of the International Society of Electrophysiology & Kinesiology. Boston MA June 18-21. 2004
      • Hwang, J., Kim, G. J., Rizzo, A.A.(2004). " Space Extension: The Perceptual Presnece Perceptive." ACM SIGGRAPH International Conference on VRCAI . Singapore, June 16-18. 2004
      • Rizzo, A.A., Buckwalter, J.G., Bowerly, T., Yeh, S., Hwang, J., Thiebaux, M. & Kim, G. J. (2004). "Virtual Reality Applications for Assessment and Rehabilitation of Cognitive and motor Processes. " 15th Congress of the International Society of Electrophysiology & Kinesiology. Boston MA June 18-21. 2004
    • 2000
      • Jung, B., Hwang, J., Kim, G. J., Lee, E., H, Kim. " Incoporating Copresence in Distributed Virtual Music Environment ," ACM Symposium on Virtual Reality Systems and Technology, 2000.
      • Hwang, J., Kim, G. J., " Design and Analysis of Virtual Musical Environment ," Proc. of International Computer Music Conference, Berlin, Germany, 2000.
    • 1999
      • Kim, G. J., Hwang, J. " Musical Motion: A Medium for Uniting Visualization and Control of Music in the Virtual Environment ," International Conference on Virtual Systems and MultiMedia 1999.
  • Domestic Journals/Conferences
    • 2008
      • 임성훈, 황재인, 최승문, 김정현, "모바일 장치를 위한 동작 추적형 이미지 브라우징 시스템", 한국 HCI 학회 논문지, 2008. Sunghoon Yim, Jane Hwang, Seungmoon Choi, and Gerard J. Kim, "Image Browsing in Mobile Devices Using User Motion Tracking", Journal of HCI Korea, 2008 (in Korean; invited).
    • 2007
      • 황재인, 김정현, "재난 구조용 웨어러블 인터페이스의 설계", 디지털엔터테인먼트학회 논문지, 1권 1호, pp. 39-41
      • 한갑종, 황재인, 최승문, 김정현, "증강현실 기반의 3차원 도자기 모델링 시스템", 한국 HCI학회 논문지, 2권 2호, pp. 19-26, 2007. Gabjong Han, Jane Hwang, Seungmoon Choi, and Gerard J. Kim, "3D Pottery Modeling in Augmented Reality", Journal of the HCI Society of Korea, Vol. 2, No. 2, pp. 19-26, 2007 (in Korean; invited).
      • 임성훈, 황재인, 최승문, 김정현, "모바일 장치를 위한 동작 추적형 이미지 브라우징 시스템", 한국 HCI 학술대회 논문집, pp. 440-446, 2007. Sunghoon Yim, Jane Hwang , Seungmoon Choi and Gerard J. Kim "Image Browsing in Mobile Devices Using User Motion Tracking," In Proceedings of the HCI Korea, pp. 440-446, 2007 (in Korean)
    • 2001
      • 황재인, 정병대, 김정현, "분산 가상 음악 환경의 구현 및 분석", 2001 정보과학회지 5월호
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