Sungwon Lee

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Sungwon Lee (LinkedIn)

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Sungwon Lee
  • Ph.D. Candidate
Advisor: Antonio Ortega
Signal and Image Processing Institute
Ming Hsieh Electrical Engineering Department
University of Southern California

Specialization

  • 3+ years of professional experience in interactive digital TV specialized on design and development of a commercial broadcasting server (AltiSynchro) delivered to Korea, China, and Europe.
  • 6+ years of R&D experience including sparse signal representation, signal compression, and compressive sampling on different applications: depthmap compression for multiview video, wireless sensor network, and ultra-wide band sensor.
  • Experienced in MPEG, H.264/AVC, depthmap compression for multiview video, and lightfield compression for glass-free 3D TV.
  • 10+ years of C/C++ and MATLAB including 4-year professional experience.
  • 2 years of academic experience in DSP programming on TMS320C6713/6416 and TMS320DM6437

Research Interests

  • Structured compressed sensing(CS) with application-driven constraints
  • Efficient depthmap compression for multiview video with graph-based transform
  • Energy-efficient data gathering on Wireless Sensor Network (WSN)
  • Fast (sparse) object localization with ultrawide band (UWB) sensor
  • Sparse representation and approximation of large-scaled sensor/image signal

Education

  • Master of Science, Aug. 2004 - May. 2006
    • Department of Electrical Engineering-Systems, University of Southern California, Los Angeles, CA
  • Bachelor of Science in Engineering, Mar. 1997 - Feb. 2001
    • School of Electrical Engineering, Seoul National University, Republic of Korea

Academic Experience

  • Research Assistant, Aug. 2006 - Present
    • Depth-map compression for multi-view video
      • Depth map compression with graph-based transform (GBT)
      • Adaptive GBT construction for CS
    • Energy-efficient data gathering on large-scaled wireless sensor network
      • Joint optimization of transport cost and reconstruction for large sensor data
      • Spatially-localized CS under transport cost constraint
    • Fast object detection using UltraWide Band(UWB)-radar
      • Fast measurement system with UWB hardware-driven constraints
      • Iterative reconstruction of sparse UWB signal


  • Teaching Assistantr, Jan. - May 2011/2012/2013
    • EE 586L/434L Advanced DSP Lab. (Prof. Antonio Ortega)
      • Real-time signal processing using DSP processor.
      • C programming for embedded platforms. Understand real-time processing system issues including constraints of embedded systems and complexity analysis for improved algorithm design.
      • Skills: C-programming on TMS320C6713, 6416 and TMS320DM6437 DSK board.

Professional Experience

  • Summer Intern, May 2012 - Aug. 2012
    • Employer: MIXLab, Hewlett Packard Lab, Palo Alto, CA
    • Mentor: Amir Said
    • Contribution:
      • Implemented continuous 3D visualization with real-time eye tracking using openGL, OSG, and SDK of OptiTrack camera
      • Developed fast parallel decoding of light field data using DCT and DWT followed by AGP (Amplitude and Group Partitioning)
      • Proposed 4-D light field compression using depth map for glass-free 3D TV


  • Software Engineer, Dec. 2000 - Jul. 2004
    • Employer: Alticast Corp., Seoul, Korea
    • Contribution:
      • Designed database schema for data repository of broadcasting server for interactive digital television using Oracle 8/8i database
      • Designed/developed C++ API for broadcasting data manipulation with Oracle 8/8i database and Oracle Call Interface (OCI) on UNIX and Windows
      • Developed MPEG-2 Transport Stream (TS) analyzer using C and ASI interface card on UNIX
      • Developed MPEG-2 TS generator in Automatic Test Environment (ATE) for Multimedia Home Platform (MHP) proposed by Digital Video Broadcasting (DVB)
      • Proposed proprietary standard for communication among broadcasting servers using MPEG-2 (ISO 13818-6)
      • Participated in designing C API for Digital Media Broadcast (DMB) device.


  • Part-time Software Engineer, Feb. 2000 - Nov. 2000
    • Employer: Netping Corp., Seoul, Korea
    • Contribution:
      • Developed Automatic Response System (ARS) with Intel Dialogic board
      • Developed video conference software using H.263 via Internet
      • Developed configurable WEB board with PHP and MySQL

Publications

  • S. Lee, C. Du, H. Hashemi, and A. Ortega "Hardware-driven Compressive Sampling for Fast Target Localization using Single-chip Radar Sensor". To appear in International Conference on Acoustics, Speech and Signal Processing (ICASSP'13)
  • S. Lee and A. Ortega "Adaptive Compressed Sensing for Depthmap Compression Using Graph-based Transform". In Proceedings of International Conference on Image Processing (ICIP'12) PDF format
  • S. Lee and A. Ortega "Joint Optimization of Transport Cost and Reconstruction for Spatially-Localized Compressed Sensing in Multi-Hop Sensor Networks ". In Proceedings of APSIPA Annual Summit and Conference (APSIPA ASC 2010), Singapore, December 2010. PDF format
  • S. Lee, S. Pattem, M. Sathiamoorthy,B. Krishnamachari, and A. Ortega "Spatially-Localized Compressed Sensing and Routing in Multi-hop Sensor Networks". In Proceedings of Third International Conference on Geosensor Networks (GSN'09), Oxford, July 2009. PDF format
  • S. Lee, S. Pattem, M. Sathiamoorthy,B. Krishnamachari, and A. Ortega "Compressed Sensing and Routing in Sensor Networks". USC CENG Technical Report, CENG-2009-4,2009. PDF format
  • G. Shen, S. Y. Lee, S. Lee, S. Pattem, A. Tu, B. Krishnamachari, A. Ortega, M. Cheng, S. Dolinar, A. Kiely, H. Xie, "Novel Distributed Wavelet Transforms and Routing Algorithms for Efficient Data Gathering in Sensor Webs". Earth Science and Tech. Conf. (ESTC'08), Adelphi, MD, June 2008. PDF format
  • S. Lee, S. Pattem, G. Shen, A. Tu, B. Krishnamachari, A. Ortega, M. Cheng, S. Dolinar, A. Kiely, H. Xie, "A Distributed Wavelet Approach for Efficient Information Representation and Data Gathering in Sensor Webs". NASA Science and Tech. Conf. (NSTC'07), Adelphi, MD, May 2007. PDF format

Presentations

  • S. Lee and A. Ortega "Adaptive Compressed Sensing for Depthmap Compression Using Graph-based Transform". In International Conference on Image Processing (ICIP'12) Poster
  • S. Lee and A. Ortega "Adaptive Compressed Sensing for Depthmap Compression ". 2nd Annual Ming Hsieh Department of Electrical Engineering Research Festival hosted by MHI, USC, April 2012 Poster
  • S. Lee and A. Ortega "Joint Optimization of Transport Cost and Reconstruction for Spatially-Localized Compressed Sensing". 1st Annual Ming Hsieh Department of Electrical Engineering Research Festival hosted by MHI, USC, April 2011 Poster
  • S. Lee and A. Ortega "Joint Optimization of Transport Cost and Reconstruction for Spatially-Localized Compressed Sensing in Multi-Hop Sensor Networks ". In Proceedings of APSIPA Annual Summit and Conference (APSIPA ASC 2010), Singapore, December 2010. PPT
  • S. Lee, S. Pattem, M. Sathiamoorthy,B. Krishnamachari, and A. Ortega "Spatially-Localized Compressed Sensing and Routing in Multi-hop Sensor Networks". In Proceedings of Third International Conference on Geosensor Networks (GSN'09), Oxford, July 2009. PPT

Technical Skills

Skills Professional Experience (years) Academic Experience (years)
Languages C/C++ (4.5), Perl (2), Java Script (2) C (6), MATLAB (6)
Standards Interactive digital broadcasting standards(MPEG-2, DVB-MHP, OCAP) (3.5) H.264/MPEG-4 AVC (2), HEVC (1)
Database SQL(4), Oracle 8/8i (3.5), Oracle Call Interface (3.5), MySQL (1) --
Graphics OpenGL, OSG (1) --
DSP -- TMS320C6713 / 6416 (2), TMS320DM6437 (2)


Relevant Courses Taken

EE-583(Adaptive Signal Processing), CSCI-570(Analysis of Algorithms), EE-569(Digital Image Processing), EE-652(Wireless Sensor Networks), EE-596(Wavelets), CSCI-576(Multimedia Systems Design), EE-559(Mathematical Pattern Recognition), EE-553(Computational Solution of Optimization Problems)

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