A collection papers published by students and teachersin 2016-2021 by the Guangxi Key Laboratory of Image and Graphic IntelligentProcessing, Guilin Huigu Institute of Artificial Intelligence IndustrialTechnology and National Local Joint Engineering Research Center of SatelliteNavigation and Location Service of the Guilin University of ElectronicTechnology covering researches and applications in geometriccomputing, images, graphics and cloud storage, information security andQuaternion Domain.