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Research

RESEARCH INTERESTS

- Ultrasound sub-pixel compounding for image resolution improvement demo

- Capacitive Micromachined ultrasound transducers (CMUT)

- Image denosie and feature enhancement demo

- super-resolution demo

- Image segmentation

- Image registration

OTHER INTERESTS

- Signal detection and processing

- Positioning and tracking

- Motion control and robotics

PROFESSIONAL ACTIVITIES

- Invited Associate Editor, Medical Physics.

- Co-chair, Multi-dimensional Signal and Image Processing, the 7^th World Multi-conference on Systemics, Cybernetics, Informatics. Orlando, Florida, July 2003

- Reviewer, IEEE Transactions on Image Processing.

- Reviewer, IEEE Transactions on Medical Imaging.

- Reviewer, Medical Physics.

- Reviewer, Ultrasound in Medicine and Biology.

- Reviewer, Convention of American Institute of Ultrasound in Medicine, 2007.

- Reviewer, International Conference on Computing, Communications and Control Technologies, Austin, Texas, August, 2004.

- Member of Institute of Electrical and Electronics Engineers (IEEE)

- Member of the International Society for Optical Engineering (SPIE)

RESEARCH & DEVELOPMENT

Post doctoral fellow, Basic Radiology Science Division, University of Michigan Health System

- Developed user-friendly image segmentation software.

- Conduct research on sub-pixel image compounding and super-resolution imaging.

- Conduct research on acoustic image reconstruction and inverse processing.

- Experimentally analyze novel CMUT and provide guidelines for new ultrasound imaging system design.

Post doctoral fellow, University of Connecticut / Pfizer Global Research & Development

- Develop and validate ultrasound resolution enhancement techniques.

Research Associate, Pfizer Global Research & Development

- Developed ultrasound pixel compounding technique.

- Developed diffusion super-resolution for image resolution enhancement.

- Investigated image segmentation and registration techniques.

Research Assistant, Electrical & Computer Engineering Department, University of Connecticut

- Conducted collaborative research with Pfizer Global Research and Development.

- Developed multi-scale diffusion algorithms for ultrasound image speckle reduction and feature enhancement.

- Developed the Minimum Directional Derivative Search (MDDS) method for speckle reduction and image enhancement.

- Investigated the ultrasound B-scan image spin fusion technique.

- investigated non-invasive blood glucose concentration test with magneto-optical rotatory effect (MORE).

SELECTED PUBLICATIONS

1. Zhi Yang, Sumedha Sinha, Rebecca Booi, Marilyn Roubidoux, Bing Ma, Brian Fowlkes, Jerry LeCarpentier, Paul Carson, “Sub-Pixel Compounding From Elasticity Imaging Data,” Proceedings of SPIE International Symposium on Medical Imaging, San Diego, California, 2007.

2. Zhi Yang, Theresa Tuthill, David L. Raunig, Martin D. Fox, and Mostafa Analoui, “Pixel compounding: Resolution enhanced ultrasound imaging,” Accepted for publication by Ultrasound in Medicine and Biology.

3. Zhi Yang, David L. Raunig, Theresa Tuthill, Martin D. Fox, and Mostafa Analoui, “Accurate Ultrasound of Carotid Intima-Media Layer by Pixel Compounding,” Proceedings of SPIE International Symposium on Medical Imaging, San Diego, California, 2005.

4. Zhi Yang, Martin Fox, “Speckle Reduction and Structure Enhancement by Multi-Channel Median Boosted Anisotropic Diffusion”, EURASIP Journal on Applied Signal Processing, 2004:16, 1-11.

5. Zhi Yang, Martin Fox, “Multiresolution Non-homogeneous Anisotropic Diffusion Approach to Enhance Ultrasound Breast Tumor Image Legibility,” Proceedings of SPIE International Symposium on Medical Imaging, San Diego, California, 2004.

6. Zhi Yang, Chunming Li, Jim Macione, Martin Fox, "Ultrasound B-Scan Image Speckle Reduction and Boundary Enhancement," Proceedings of the 7^th World Multiconference on Systemics, Cybernetics, Informatics, Orlando, Florida, 2003.

7. Zhi Yang, Chunming Li, Jim Macione, Martin Fox, "Spin Fusion Ultrasound Imaging," Proceedings of the IEEE 28th Annunal Northeast Bioengineerig Conference, Philadelphia, Pennsylvania, 2002.

8. Zhi Yang, "Quad Spin Fusion Ultrasound Imaging," presented in 11th New England Doppler Conference, Lake Rosseau, Ontario, Canada, 2001.

9. Zhi Yang, Sunghoon Jang, Martin Fox, Dan Censor, "Simplified Permittivity Measurement of Human Skin in Vivo," Proceedings of the IEEE 26th Annunal Northeast Bioengineerig Conference, Storrs, Connecticut, 2000.

10. Zhi Yang, Puyun Guo, Quing Zhu, "A Simple 2-D Ultrasound Array and Front-end Electronics for 3-D Volumetric Imaging," Proceedings of the IEEE 25th Annunal Northeast Bioengineerig Conference, Hartford, Connecticut, 1999.

11. Sunghoon Jang, Zhi Yang, Martin Fox, Dan Censor, "Double Lock-in Amplifier Faraday Rotation Glucometer," Proceedings of the IEEE 26th Annunal Northeast Bioengineerig Conference, Storrs, Connecticut, 2000.

12. Dan Censor, Zhi Yang, Sunghoon Jang, Martin Fox, "First-order Material Effects in Gyromagnetic Systems," Proceedings of the IEEE 26th Annunal Northeast Bioengineerig Conference, Storrs, Connecticut, 2000.

Patent Applications

20070083114, Systems and Methods for Image Resolution Enhancement.