I am an applied scientist at Amazon located in Los Angeles, CA. I worked as an applied scientist at Amazon Studios in Culver City, CA. I was a postdoc fellow in the School of Engineering and Applied Science at Harvard University. I received the B.S. and Ph.D. degrees in the School of Electrical Engineering from Korea University in Feb. 2011 and Feb. 2018, respectively. My research interests cover computer vision and machine learning especially the segmentation and generative problems for videos.