The main research directions are digital photogrammetry, computer vision and image database management. 1999 to 2004, it mainly studied the three-dimensional reconstruction of buildings based on single and sequential images and the geometric accuracy test of images. From 2004 to now, we have studied the three-dimensional reconstruction of street view, the change detection of images in different periods, the management and update of image database, etc. The current research projects include: developing DPGrid data management system and image database management system. Main awards, honors and academic part-time jobs: in 2004, he won the third prize in the Young Teachers' Lecture Competition of the School of Remote Sensing and Information Engineering of Wuhan University.