Daphne Yu
Research and Professional Experiences

* Graduate Researcher
  Center for Imaging Science, Johns Hopkins University
  Baltimore, MD

(September '97 - present)
  Selected Accomplishments:
  • Designed and implemented methods for interactive manipulation of computerized 3-D surface models using active deformation
  • Developed visualization techniques for complex 3-D surfaces and medical images
  • Developed methods for the validation of human cortical surface deformable models created from magnetic resonance images (MRI)
  • Graphic user interface (GUI) design and implementation for pipeline processing large data sets

* Web Developer
  CISST Engineering Research Center, Johns Hopkins University
  Baltimore, MD

(February '00 - present)

* Software Consultant
  Clinical Brain Disorder Branch, NIMH, NIH
  Bethesda, MD

(January '98 - June '98)


* Engineering Associate
  EEG Systems Laboratory
  San Francisco, CA

(Summer'93, Summer'94, January '95 - July '97)
  Selected Accomplishments:
  • Implemented software for extensive time, space and frequency domain analysis of electroencephalogram (EEG) collected from human subjects
  • Multimodal registration of EEG and MRI data
  • Statistical analysis of human cognitive performances
  • Alpha testing and technical support for commercial EEG analysis software package - Image VueTM
  • EEG data acquisition hardware and software maintenance

* Software Tester
  Biocybernetics Laboratory, University of California
  Los Angeles, CA

(Winter '94)
  • Tested software package that simulates pharmaceutical models of drug concentrations using pool models

* Student Research Assistant
  Optoelectronic Circuits and System Laboratory, University of California
  Los Angeles, CA

(Spring '94 - Winter '94)
  • IC circuits simulation
  • Layout IC circuits in preparation for fabrication

* Student Research Assistant
  Antenna Research Laboratory, University of California
  Los Angeles, CA

(Fall '94)
  • Implemented software programs that simulates electromagnetic wave propagation through a multilayered medium

* Student Research Assistant
  Epileptic Research Laboratory, University of California
  Los Angeles, CA

(Fall '93 - Spring '94)
  • Assisted magnetoencephalogram (MEG) recordings
Technical Skills
  • Proficient in C, C++, Matlab scripts and API, TCL/TK, HTML, and UNIX scripts
  • Experienced with interactive 3-D application development using Visualization Toolkit (VTK) in the Visual C++ and IRIX development environments
  • Some knowledge in programming with OpenGL and Microsoft Foundation Classes (MFC)
  • 2 years of experience with alpha, beta testing and technical support for commercial softwares
  • Capable of doing basic system administration on Windows NT/98 networking systems
  • Familiar with various other software packages such as OpenDX, Adobe Premiere, Corel Draw, LaTeX, and Microsoft Office
Education

Masters of Science in Engineering
Department of Biomedical Engineering, Johns Hopkins University
Baltimore, MD

(January, 2000)
  Course Work Areas:
  • Foundations in medical imaging principals and MR physics
  • Basic digital signals and image processing
  • Basic geometric algorithms
  • Principals relevant to computer integrated surgery
  • Foundations in human anatomy

Bachelors of Science, Cum Laude, Departmental Honors, College Honors, Dean's List
Department of Cybernetics, University of California
Los Angeles, CA

(December, 1994)
Publications

Yu, D., Xu, C., Prince, J.   "A New Surface Editing Tool for Generating Truth Models of the Human Cortical Surface", 6th International Conference on Function Mapping of the Human Brain, June, 2000. (submitted)

Yu, D., Xu, C., Rettmann, M., Pham, D., Prince, J.   "Quantitative Validation of a Deformable Cortical Surface Model", SPIE International Symposium on Medical Imaging, February 2000.

Yu, D.   "Quantitative Validation of a Cortical Surface Reconstruction Method", MSE thesis, The Johns Hopkins University, January 2000.

Xu, C., Pham, D., Rettmann, M., Yu, D., Prince, J.   "Reconstruction of the Human Cerebral Cortex from Magnetic Resonance Images", IEEE Transactions in Medical Imaging, 18(6), June 1999.

Etemad, M., Xu, C., Pham, D., Yu, D., Prince, J.   "Segmenting the Buried Gyri of the Cortical Surface", 5th International Conference on Function Mapping of the Human Brain, June 1999.

Yu, D., Rettmann, M., Xu, C., Pham, D., Prince, J.   "Cortical Surface Reconstruction and Validation", CISST Engineering Research Center Poster Session, May 1999.

Prince, J., Xu, C., Etemad, M., Yu, D., & Pham, D.   "A Spherical Map for Cortical Geometry", CISST Engineering Research Center Poster Session, March 1998.

Xu, C., Pham, D., Prince, J., Etemad, M., Yu, D.   "Reconstruction of the Central Layer of the Human Cerebral Cortex from MR Images", 1st International Conference on Medical Image Computing and Computer-Assisted Interventions (MICCAI), October 1998.

Xu, C., Etemad, M., Yu, D., Pham, D., Prince, J.   "A Spherical Map for Cortical Geometry", 4th International Conference on Function Mapping of the Human Brain, June 1998.

Gevins, A.S., Smith, M.E., McEvoy, L., Yu, D.   "High-resolution EEG Mapping of Cortical Activation Related to Working Memory: Effects of Task Difficulty, Type of Processing, and Practice", Cerebral Cortex, 7(4), 374-385, 1997. Full text (760K pdf)

Yu, D., Smith, M.E., Gevins, A.S.   "An Attention-Related EEG Theta Rhythm Localized to the Anterior Cingulate Cortex", 3rd Annual Meeting of the Cognitive Neuroscience Society, April 1997.


Avocations

* Windows NT System Administrator
  Image Analysis and Communications Lab,
  Johns Hopkins University, Baltimore, MD

I am not a professional system administrator, but I managed to install, update the eight Windows NT machines within the domain of my research lab as well as to keep them free of intruders.



* Multimedia Technician
  Image Analysis and Communications Lab, and CISST Engineering Research Center
  Johns Hopkins University, Baltimore, MD

Eventhough multimedia is not a focus of my work or research, I often find myself making analog/digital videos or other forms of presentations for web or live demonstrations. From these experiences, I do know a bit about various video formats and CODECS.

Last modified: February 2000