Columbia University, New York, NY (Sep 2003 - present)
Ph.D. in Electrical Engineering

Carnegie Mellon University, Pittsburgh, PA (Aug 2001 - Dec 2002)
Master of Science in Electrical and Computer Engineering, GPA 4.00/4.00

National Taiwan University, Taipei, Taiwan (Sep 1999 - Jun 2001)
Master of Science in Electrical Engineering, GPA 4.00/4.00

National Taiwan University, Taipei, Taiwan (Sep 1995 - Jun 1999)
Bachelor of Science in Electrical Engineering, GPA 3.85/4.00


Columbia University

Research Assistant (Sep 2004 - present) Advisor: Prof Shih-Fu Chang

- Image forensics analysis and detection, focusing on image formation process and imaging device characteristics modeling

Teaching Assistant

- Digital Image Processing, Prof Shih-Fu Chang (Jan 2004 - May 2004)

Carnegie Mellon University

Research Assistant (Aug 2001 - Dec 2002) Advisor: Prof Tsuhan Chen

- Illumination normalization for PCA-based human face recognition
- Collaborated with General Motors developing feasible face recognition modules for their demo cars
- Also part of Sony's Multi-biometrics Authentication Research Project

National Taiwan University

Research Assistant (Sep 1999 - Jun 2001) Advisor: Prof Soo-Chang Pei

- Robust watermarking on palette-based images that survived under various attacks
- High capacity audio data hiding using spread spectrum watermark design. This was one of the pioneer research attempts that proved to be immune to the common MP3 attack

Teaching Assistant

- Digital Signal Processing, Prof Soo-Chang Pei (Feb 2001 - Jun 2001)
- Mobile Communications, Prof Jin-Fu Chang (Sep 2000 - Jan 2001)

Undergraduate Research (Sep 1997 - Jun 1998) Advisor: Prof Jyh-Horng Chen

- Designed and developed a human-machine interface system for people with disabilities as part of a 6 member team
- This project was awarded Undergraduate Dragon Scholarship by Acer Foundation
- The system has been put into mass production, purchased by and used in elementary and junior high schools in Taiwan

Consumers' Foundation, Taipei, Taiwan

Student Volunteer (Jun 1999 - Aug 1999)

- Served in the 1999 Taiwan Internet Service Provider (ISP) Survey Project, evaluating the performances of 42 ISPs in Taiwan


- Digital Signal Processing, Digital Image Processing, Computer Vision
- Machine Learning, Statistical Pattern Recognition
- Statistical Video Analysis and Indexing, Speech and Audio Processing, Music Signal Processing
- Random Processes, Information Theory, Detection and Estimation Theory
- Graph Theory, Basic Topology, Genomic Information and Technology


Outstanding TA, Department of Electrical Engineering, Columbia University, Sep 2004
- For the course Digital Image Processing

Undergraduate Dragon Scholarship, Acer Foundation, Taiwan, Nov 1998
- Head-Motion Controlled Man-Machine Interface For Disables, Undergraduate Research Project


1. Y. -F. Hsu and S. -F. Chang, "Detecting Image Splicing Using Geometry Invariants and Camera Characteristics Consistency", ICME 2006, Toronto, Canada

2. T. -T Ng, S. -F. Chang, J. Hsu, L. Xie, M. -P. Tsui, "Physics-Motivated Features for Distinguishing Photographic Images and Computer Graphics", ACM Multimedia, Singapore, Nov 2005

3. T. Chen, Y. J. Hsu, X. Liu, and W. Zhang, "Principal Component Analysis and Its Variants for Biometrics", International Conference on Image Processing, Rochester, NY, Sep 2002

4. S. -C. Pei and Y. -F. Hsu, "Palette-Based Color Image Watermarking Using Neural Network Training and Repeated LSB Insertion", Conference on Computer Vision, Graphics and Image Processing, Taipei, Taiwan, Aug 2000


- Undergraduate rural service that helped with children education and community organization in Yun-lin County, Taiwan
- Photography
- Reading and writing
- Art, music, and other multi-modal, creative artistic expressions


- Mandarin Chinese
- Japanese - Japanese Language Proficiency Test (JLPT) Level 2
- French