视觉在线位姿测量中标志点快速识别方法  

Fast Targets Recognition Method on Online Vision Position and Orientation Measurement

作　　者：张宏宇[1] 李宗春[1] 冯其强[1] 杨玉海[1] 

机构地区：[1]信息工程大学,河南郑州450001

出　　处：《测绘科学技术学报》2014年第2期145-147,共3页Journal of Geomatics Science and Technology

摘　　要：针对基于单相机的运动目标位姿视觉在线测量中的标志点快速识别算法进行了研究,提出了一种多窗口识别算法。利用前一帧的测量结果作为先验信息对下一帧图像进行处理,以提高计算速度且避免了标志点编号及匹配问题,并给出了搜索窗口的阈值计算公式;进一步提出了基于仿射变换的无需起始点搜索的标志点直接识别算法。实验结果表明,这两种标志点识别算法能够在不影响标志点定位精度的前提下加快标志点识别速度,提高整体测量过程的效率,具有实用价值。The multi window recognition algorithm was proposed after research on the problem of moving target recognition method in single camera online vision position and orientation measurement. The algorithm processed the next frame using the measurement results of last frame as a priori information to increase computing speed and avoided the problems of match of target number. It also provided the calculation formula of the search-window threshold value. A new direct recognition algorithm without start-pixel searching was presented based on Affine Transform. The results of the experiment showed that these two methods can promote efficiency of target recognition without depressing the accuracy. It proved to be useful in practice.

关 键 词：工业摄影测量 在线位姿测量 人工标志 搜索窗口 仿射变换 

分 类 号：P23[天文地球—摄影测量与遥感]