Project under research: 1) Key project of National Natural Science Foundation ("Research on image invariance based on cognitive model and its application") (main member); 2) Liaoning doctoral research start-up fund project ("Research on stereoscopic video conversion technology based on motion analysis") (moderator); 3) Project initiated by introducing talents from Dalian University of Technology 1 (hosted). Completed projects: As a key member, I undertook and completed the research and development of the following important projects: 1) Interactive Media Search of Singapore Media Development Bureau, 2) National 973 Project "Filtering Bad Internet Video Content" and 3) Beijing Science and Technology Plan Project "Research on Multimedia Content Search Technology". 4) Key project of Sino-US scientific and technological cooperation "Research on key technologies of virtual sports training system" 5) Key project of Beijing Natural Science Foundation "Motion analysis and research of specific sports action video and its application in sports training" 6) National Natural Science Foundation project "Research on content-based multimedia digital signature technology".