A mini-displacement measure method based on SURF algorithm is proposed for the initial state of high acceleration target such as missile.The algorithm converts the displacement to the coordinate change of the matching points.The algorithm detects the interested points by SURF,rapid-index of the interested points is established,and the nearest neighborhood method is used during the process of initial matching.A new matching method based on parallel distances is proposed to eliminate the mismatched points.The initial mini-displacement is calculated by the matched points.The results reveal that the algorithm can achieve sub-pixel accuracy,and the running time is within 10 ms.All these ensure the algorithm′s reliability and real-time performance.
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范有臣,李迎春,都琳.基于SURF算法的微小位移测量[J].激光与红外,2012,42(6):699~704 FAN You-chen, LI Ying-chun, DU Lin. Mini-displacement measurement based on SURF algorithm[J]. LASER & INFRARED,2012,42(6):699~704