Robert C. Disque Professor of Electrical and Computer Engineering

DEPARTMENT: Electrical & Computer Engineering
DEGREES:
B.S. in E.E., Cooper Union, 1958
M.S. in E.E., MIT 1960
Sc.D., MIT 1963

OFFICE: Bossone 610
PHONE: 215-895-2214
FAX: 215-895-1695

E-MAIL: tretiak@drexel.edu
WEBSITE: http://www.ece.drexel.edu/faculty/tretiak
RESEARCH KEYWORDS: Image Processing, Tomography, Image Registration, Pattern Recognition

Profile

Dr. Tretiak`s research interests cover all aspects of imaging and image processing, going from the physics of image sensing and scanning, through the construction of imaging systems, and leading to the perception of visual stimuli and the nature of information conveyed by image data. He has contributed in the fields of image data compression, pattern recognition, computer tomography and other aspects of medical imaging, and image analysis systems in neuroscience.

Research projects

Validation of computed diagnostic features in ultrasound images. The goal of this project is to develop a method for diagnosing lesions in medical images. Data extracted from ultrasound scans is combined to develop an optimal signature that will discriminate among types of tumors. This research deals with the design of statistical analysis procedures for extracting data from small samples.

Standard coordinate systems for neurocartography. The goal of this project is to develop methods for comparing three-dimensional image data sets of brains of different individuals. This research aims to develop methods for aligning three-dimensional data sets and for developing measures of geometrical variation.

Recent Publications

• Carl Gustafson, Oleh Tretiak, Louise Bertrand and Jonathan Nissanov, Implementation of Software for Assembly and Browsing of 3D Brain Atlases, Computer Methods and Programs in Biomedicine, 74: 53:61 (2004).

• Smadar Gefen, Oleh J. Tretiak, Catherine W. Piccoli, Kevin D. Donohue, Athina P. Petropulu, P. Mohana Shankar, Vishruta A. Dumane, Lexun Huang, M. Alper Kutay, Vladimir Genis, Flemming Forsberg, John M. Reid, Barry B. Goldberg, ROC Analysis of Ultrasound Tissue Characterization Classifiers For Breast Cancer Diagnosis, IEEE Trans Medical Imaging, vol. 22: 170-179 (2003).

• Rosen G., Porte N.L., Diechtiareff B., Pung C., Nissanov J., Gustafson C., Bertrand L., Gefen S, Fan Y., Tretiak O., Manly K. F., Park M. R., Williams A. G., Connolly M. T., Capra J. A. and Williams R. W., Informatics Center for Mouse Genomics: the Dissection of Complex Traits of the Nervous Systemä, Neuroinformatics, November, 2003.

• Smadar Gefen, Oleh Tretiak, Louise Bertrand, Glenn D. Rosen, and Jonathan Nissanov, Surface Alignment of an Elastic Body Using a Multi-Resolution Wavelet Representation, IEEE Trans. BME, accepted for publication.

• Smadar Gefen, Oleh Tretiak, and Jonathan Nissanov, Elastic 3-D Alignment of Rat Brain Histological Images, IEEE Trans MI, 22(11): 1480-1489 (2003).

Recent Dissertations

Alexander Pinus, Current Mode Magnetic Resonance Imaging, 2002.

Dinesh Obalappa, Optimal Caching of Large Multi-Dimensional Datasets 2004.