Godwin Shen

Godwin Shen

http://biron.usc.edu/~godwinsh/me.jpg

Ph.D. Candidate

Department of Electrical Engineering - Systems

University of Southern California

Los Angeles, CA

E-mail: godwinsh@usc.edu

Advisor: Antonio Ortega

Research Interests

• Energy-Efficient Data Compression for Wireless Sensor Networks
• Image Compression
• Wavelet Transforms

Education

• Sep. 2005-present: University of Southern California, Los Angeles, CA
  • Ph.D. student, Department of Electrical Engineering-Systems
• Sep. 2005-May 2007: University of Southern California, Los Angeles, CA
  • Master of Science in Electrical Engineering, May 2007, Department of Electrical Engineering-Systems
• Sep. 2001-Jun. 2005: California State Polytechnic University, Pomona
  • Bachelor of Science in Electrical Engineering, Jun. 2005, Department of Electrical Engineering

Professional Experience

• Jet Propulsion Laboratory: May 2008-Aug. 2008
  • Intern in Information Processing Group
  • Research in Distributed Data Compression

• Raytheon: May 2003-Aug. 2005
  • Intern in Systems Engineering
  • System Specification and Test for Air Defense Systems

Fellowships / Awards

• USC Viterbi School of Engineering Doctoral Fellowship (Sep. 2005-May 2009)

• NASA Space Grant Award (May 2008-Aug. 2008)

• NASA Pair Grant Award (Sep. 2004-Jun. 2005)

Skills / Tools

• Proficient in C/C++, MatLab.
• Working knowledge of Windows and UNIX systems.

Publications

• G. Shen and A. Ortega, "Transform-based Distributed Data Gathering". To Appear in IEEE Transactions on Signal Processing. arXiv:0909.5177v3

• S.K. Narang, G. Shen and A. Ortega, "Unidirectional Graph-based Wavelet Transforms for Efficient Data Gathering in Sensor Netowkrs". To Appear in 2010 IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP'10), Dallas, April 2010.

• A. Sanchez, G. Shen and A. Ortega, "Edge-preserving Depth-map Coding Using Graph-based Wavelets". In Proc. of Asilomar 2009, Pacific Grove, October 2009. PDF format

• P. Tarrio, G. Valenzise, G. Shen and A. Ortega, "Distributed Network Configuration for Wavelet-based Compression in Sensor Networks". In Proc. of Third Intl. Conf. on Geosensor Networks (GSN'09), Oxford, July 2009. PDF format

• G. Shen and A. Ortega, "Tree-Based Wavelets for Image Coding: Orthogonalization and Tree Selection". In Proc. of 2009 Picture Coding Symposium (PCS'09), Chicago, May 2009. PDF format

• G. Shen, S. Pattem and A. Ortega, "Energy-efficient Graph-based Wavelets for Distributed Coding in Wireless Sensor Networks". In Proc. of 2009 IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP'09), Taipei, April 2009. PDF format

• G. Shen, S. Narang and A. Ortega, "Adaptive Distributed Transforms for Irregularly Sampled Wireless Sensor Networks". In Proc. of 2009 IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP'09), Taipei, April 2009. PDF format

• S. Pattem, G. Shen, Y. Chen, B. Krishnamachari and A. Ortega, "SenZip: An Architecture for Distributed En-route Compression in Wireless Sensor Networks". In Workshop on Sensor Networks for Earth and Space Science Applications (ESSA'09), San Francisco, April 2009. PDF format

• G. Shen and A. Ortega, "Compact Image Representation Using Wavelet Lifting Along Arbitrary Trees". In Proc. of 2008 IEEE Intl. Conf. on Image Processing (ICIP'08), San Diego, October 2008. PDF format

• G. Shen and A. Ortega, "Joint Routing and 2D Transform Optimization for Irregular Sensor Network Grids Using Wavelet Lifting". In Proc. of Fifth Intl. Conf. on Information Processing in Sensor Networks (IPSN'08), St. Louis, April 2008. PDF format

• G. Shen and A. Ortega, "Optimized Distributed 2D Transforms for Irregularly Sampled Sensor Network Grids Using Wavelet Lifting". In Proc. of 2008 IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP'08), Las Vegas, April 2008. PDF format

Miscellaneous

• 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

Related Links

• Distributed Compression for Sensor Networks

• Compression Research Group

• Source Code for Distributed Compression Algorithms