I am a software engineer at Google. I work on computer vision and machine learning related product research and development. My work contributed to Google products such as Lens Blur in Google Camera, pose estimation in Cardboard Camera. I led a computer vision team for Google Clips, developing image understanding, synthesis, and enhancement techniques. Some of the works are published in research conferences. I am now working on vision technologies for Google Pixel phones and Google Photos services. Prior to joining Google, I was a computer science faculty at University of Wisconsin, Madison, researching on computer vision and graphics. My academic works and awards are summarized on this page.