I am an Assistant Professor in the School of Computer Engineering at Nanyang Technological University. My general research interests are in the area of medical image and signal processing. Many clinical applications require precise, reliable and fully automated measurements of tissue dimensions, even when the data is degraded by noise and imaging artifacts. Hence the bulk of my work is devoted to developing and validating automated image segmentation algorithms, as well as pre- and post-processing techniques to get rid of artifacts or lessen their effect on the measurement quality. I am also interested in multivariate regression/pattern classfication methods for detection of correlations between image-based measurements and clinical/behavioral data.

My more specific interests are:

• Image segmentation with emphasis on graph-theoretic approaches (graph cuts, isoperimetric ratio, random walker).
• Intensity non-uniformity correction of MR images
• Signal processing aspects of functional MRI - removal of physiological noise, functional and effective connectivity, activity detection, HRF modeling.
• Estimation of abdominal fat distribution (subcutaneous vs. visceral tissue, fat infiltration of liver and pancreas).
• Multivariate regression/pattern analysis and classification approaches to assessment of behavioral/clinical correlations with structural measurements
• Non-negative and sparse component analyis

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