Events Calendar

Random Walk with Restart and Its Application to Computer Vision

Speaker: Prof. Kyoung Mu Lee, Dept. of EECS, College of Engineering Seoul National University, Korea

Talk Title: Random Walk with Restart and Its Application to Computer Vision

Abstract: In this talk, we introduce the Random Walk with Restart (RWR), and a new generative framework based on RWR for semi-supervised labeling problems in computer vision. Typical semi-supervised labeling problems in computer vision include the seeded image segmentation, photomontage, image coloring, matting and feature matching, and so on, in which the initial seeds or labels are positioned by users. We solve these problems by finding the generative model for each label using RWR in a Bayesian framework. In our new formulation, the generative model is defined by the pixel likelihood of each seed, and it is estimated efficiently by the steady-state probability of RWR. Final solution is obtained by assigning the label with maximum posterior probability to each pixel. We demonstrate the effectiveness of our new framework in some computer vision problems including semi-supervised image segmentation, image colorization, and correspondence problem.

Biography: Kyoung Mu Lee received the B.S. and M.S. Degrees in Control and Instrumentation Eng. from Seoul National University, Seoul, Korea in 1984 and 1986, respectively, and Ph. D. degree in Electrical Engineering from the University of Southern California in 1993. He is currently with the Department of Electrical Engineering and Computer Science at Seoul National University as a professor. His primary research interests include object recognition, MRF optimization, tracking, and visual navigation.

Kyoung Mu Lee had been an editor of the Journal of Applied Signal Processing, and currently serving as an associate editor of the IPSJ Trans. on Computer Vision and Application, Machine Vision and Applications, the Journal of Information Hiding and Multimedia Signal Processing, and IEEE Signal Processing Letters. He has received several awards including Okawa Foundation Research Grant Award in 2006, Honorable Mention Award at the ACCV2007, the Most Influential Paper over the Decade Award at IAPR MVA2009, and the Outstanding Research Award by the College of Engineering of SNU in 2010. He is a Distinguished Lecturer of the Asia-Pacific Signal and Information Processing Association (APSIPA) for 2012-2013. He has (co)authored more than 140 publications in refereed journals and conferences including PAMI, IJCV, CVPR, ICCV and ECCV.



Host: Prof. C.-C. Jay Kuo

Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248

Audiences: Everyone Is Invited

Contact: Talyia Veal