Professor Yang has long been engaged in the theory, method and application research of high-precision joint processing of multi-platform and multi-angle observation data (low-altitude UAV, ground motion measurement, etc.). ), the data model, processing model and expression model of generalized image point cloud are put forward, and the theory and method of generalized image point cloud processing for gradual reconstruction of three-dimensional city model are established, which realizes the leap from visualization to computable analysis of three-dimensional city model. He has presided over more than 973 Program, National Natural Science Foundation of China, 863 Program, National Natural Science Foundation of China, Hubei Outstanding Youth Science Foundation and other projects 10, and published more than 100 papers, including 35 international journal papers cited by SCI for nearly 290 times. At present, he is the leader of IAG Lidar Survey Working Group, and has been selected into the "New Century Outstanding Talents Support Program" of the Ministry of Education, the Hubei Outstanding Youth Science Fund, and the "Luo Jia distinguished professor" talent fund program of Wuhan University. Won the first prize of the best scientific paper of GIS ESRI of American Society for Photogrammetry and Remote Sensing (APRS) (ranked first), the first prize of natural science of the Ministry of Education (ranked first), the second prize of natural science of the Ministry of Education (ranked second), three first prizes of other provincial and ministerial science and technology (ranked fourth and fifth) and the Hubei Youth Science and Technology Award. The research results are applied to major projects such as global land cover mapping, navigation and positioning services. Professor Derek Lichti, editor-in-chief of ISPRS Journal of Photographic Survey and Remote Sensing, an academic journal in the field of photogrammetry and remote sensing, said, "Yang has made a leading and important contribution to the point cloud modeling of urban models (the professors are very clear to me). Academician Yang has made an important and leading contribution to the modeling of laser scanning point cloud cities.