基于概率多假设跟踪技术的数目可变航拍视频多目标跟踪  

PMHT based tracking of variable number of targets in airborne video

作　　者：熊超[1] 穆冬[2] 薛斌党[1] 

机构地区：[1]北京航空航天大学宇航学院图像中心,北京100191 [2]北京航天飞行控制中心,北京100094

出　　处：《中国体视学与图像分析》2010年第1期1-7,共7页Chinese Journal of Stereology and Image Analysis

基　　金：国家部委预研基金项目(C5120081401);航空科学基金项目(20080151009)

摘　　要：提出了一种改进的概率多假设跟踪(probabilistic multi-hypothesis tracking,PMHT)航迹管理方法,应用于数目可变视频多目标跟踪。该方法将目标航迹分为三类:确认航迹、候选航迹和新航迹,并设计了确认航迹子模块、候选航迹子模块和新产生航迹子模块分别管理上述航迹。在确认航迹子模块和候选航迹子模块中采用PMHT算法对航迹和测量进行关联,同时计算航迹置信度作为航迹确认和航迹删除的依据。新航迹子模块采用修改的逻辑法进行航迹起始。滑窗PMHT算法的应用使消失航迹得到及时删除。航拍数目可变视频多目标跟踪结果表明了本文提出方法的有效性。To track variable number of targets in airborne video,an improved track management method is presented that is consistent with the probabilistic multi-hypothesis tracking（PMHT） algorithm.The tracks are divided into three categories： confirmed tracks,candidate tracks and new tracks.The conformed trackers submodule,the candidate trackers submodule and the new trackers submodule are designed to manage the above mentioned tracks.PMHT algorithm is used for associating tracks and measurements in conformed trackers and candidate trackers.The likelihood ratio of tracks is calculated as the criterion of track conform and deletion.In the new tracker,the modified logic-based method is used for track initiation.Sliding PMHT makes track management system delete missing tracks in time.The result of tracking variable number of targets in airborne video shows the effectiveness of the method proposed in this paper.

关 键 词：视频多目标跟踪 概率多假设跟踪 航迹管理 航迹起始 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]