基于外极线约束条件的视频判读方法  

Video Interpretation Using Constraint of Epipolar Line

作　　者：贾涛[1] 陈涛[1] 凌伟 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130031 [2]驻长春地区航空军代表室,长春130031

出　　处：《仪器仪表学报》2005年第z1期625-627,共3页Chinese Journal of Scientific Instrument

摘　　要：由于人眼视觉定位误差影响,导致人工进行光电经纬仪视频图像目标特征点匹配偏差较大。为了满足目标特征点的空间匹配一致性要求,提出了一种基于外极线约束条件新的视频图像判读处理模式。该模式利用两台经纬仪视频图像目标特征点的外极线对应关系和目标距离估计信息,将寻找对应特征点的搜索空间限制在外极线附近极小区域。实验结果表明,这样既可提高特征点的搜索速度,也可以提高特征点的判读精度,降低多目标的误匹配几率。The effect of positioning error of human vision leads to large bias error matching the target feature points of opto-electronic theodolites manually. In order to satisfy the consistency of the feature point spatial matching, a novel algorithm for video interpretation based on constraint of epipolar line is proposed. According to the correspondence of epipolar lines of target feature points, the algorithm can limit the searching space of the corresponding feature point between two theodolites. Experimental results show that it can improve not only the feature points' searching speed, but also the feature points' interpreting accuracy, and decrease the probability of multiple targets' matching.

关 键 词：视频判读 外极线 特征点 定位 

分 类 号：TH7-55[机械工程—仪器科学与技术]