三相机结构光摄影测量中人工标志同名像点自动匹配方法

摘要

针对摄影测量在高温锻件测量中投射激光点无法进行同名像点匹配这一问题,在基于核线约束的人工标志匹配方法基础上进行相关参数设置.通过闯值限制很大程度剔除了匹配中的错点,并进行匹配试验验证.实验结果表明,方法对于人工标志具有较高的匹配成功率以及正确率,可以满足摄影测量在高温锻件测量中的应用要求.%The casting laser points on the high temperature forgings in the photogrammetry can not match with homologous image points. So some parameters during the course of artifical target matching, based on the epipolar line restriction are set up. This method will choose the correct ones by eliminating the mistakes beyond the thresholds, and the experiments concerned show that the method has higher matching ratio and correctness ratio to the artifical targets, and meets with the demand in the high temperature forgings surveying.