I am currently a PhD student of the Image and Video Computing (IVC) group, at the Computer Science department, Boston University.
My research interests include computer vision and machine learning.
Project
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Automatic tracking large numbers of objects in infrared thermal videos. One application is to census wild animals like Brazilian free-tailed bats for understanding the ecological and economic impact of these animals on terrestrial ecosystems. Check project website to see details. |
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Hidden State Shape Models (HSSMs) were previously proposed
to represent and detect objects in images that exhibit not just deformation of their shape but also variation in their structure [Wang et al, PAMI08]. In this project, we introduce Dynamic Hidden-State Shape Models (DHSSMs) to track and recognize the non-rigid motion of such objects, for example, human hands. Our recursive Bayesian filtering method, called DP-Tracking, combines an exhaustive local search for a match between image features and model states with a dynamic programming approach to find a global registration between the model and the object in the image. Our experiments show that our method can recognize the digits of a hand while the fingers are being moved and curled to various degrees. The method is robust to various illumination conditions, the presence of clutter, occlusions, and some types of self-occlusions. Download and see video demos here. |
Teaching
CS585 Image and Video Computing (2008 Spring)
Education
Contact Information
wuzheng AT cs.bu.edu
My hobbies are really diverse, one of which is photography. See my online albums in flickr and piccasaweb.