I am a Postdoctoral Researcher at the Human-Computer Interaction Institute at Carnegie Mellon University. My research interest lies in the fields of Human-Computer Interaction based on Computer Vision. Before joining HCII, I received my Ph.D in Computer Science from Yonsei University in Korea. I am exploring how Computer Vision and Crowdsourcing can help individuals with visual impairments. Specifically, my current research is focused on building an assistive system based on smart glasses for blind people.