A parallel pipeline connected-component labeling method for on-orbit space target monitoring

作     者：LI Zongling ZHANG Qingjun LONG Teng ZHAO Baojun LI Zongling;ZHANG Qingjun;LONG Teng;ZHAO Baojun

作者机构：School of Information and ElectronicsBeijing Institute of TechnologyBeijing 100081China Institute of Spacecraft System EngineeringChina Academy of Space TechnologyBeijing 100094China Institute of Remote Sensing SatelliteChina Academy of Space TechnologyBeijing 100094China 

出 版 物：《Journal of Systems Engineering and Electronics》 (系统工程与电子技术（英文版）)

年 卷 期：2022年第33卷第5期

页      面：1095-1107页

核心收录：

学科分类：08[工学] 080203[工学-机械设计及理论] 082503[工学-航空宇航制造工程] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 

主　　题：Tianzhou-3 cargo spacecraft(TZ-3) connected-component labeling(CCL)algorithms parallel pipeline processing on-orbit space target detection streaming processor 

摘      要：The paper designs a peripheral maximum gray differ-ence(PMGD)image segmentation method,a connected-compo-nent labeling(CCL)algorithm based on dynamic run length(DRL),and a real-time implementation streaming processor for *** it verifies the function and performance in space target monitoring scene by the carrying experiment of Tianzhou-3 cargo spacecraft(TZ-3).The PMGD image segmentation method can segment the image into highly discrete and simple point tar-gets quickly,which reduces the generation of equivalences greatly and improves the real-time performance for *** parallel pipeline design,the storage of the streaming processor is optimized by 55%with no need for external me-mory,the logic is optimized by 60%,and the energy efficiency ratio is 12 times than that of the graphics processing unit,62 times than that of the digital signal proccessing,and 147 times than that of personal *** the results of 8756 images completed on-orbit,the speed is up to 5.88 FPS and the target detection rate is 100%.Our algorithm and implementation method meet the requirements of lightweight,high real-time,strong robustness,full-time,and stable operation in space irradia-tion environment.