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一种航空摄影测量自动加密方法 被引量:1

An Automatic Methodology for Aerial Photogrammetric Point Determination
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摘要 提出了一种航空摄影测量自动加密方法。首先由相对定向建立立体模型,并自动提取模型连接点;然后通过循环搜索,自动连接测区内的全部模型,进而得到全部影像在统一坐标系下的外方位元素,这也是本方案的创新之处,以此为基础,利用光束法平差优化各相机的位姿参数;最后,由不少于3个地面控制点进行绝对定向,从而得到各相机的绝对位姿参数,由空间前方交会即可解算加密点的大地坐标。试验结果表明,当将定向点均匀分布于测区时,检查点的平面和高程误差满足我国现行航空摄影测量规范对航测生产的精度要求;若将定向点分布于测区一侧,检查点的精度也达到了一定水平,表明可以根据分布于一侧的少量控制点来测绘全测区地形。
机构地区 [ [
出处 《测绘通报》 CSCD 北大核心 2015年第12期37-40,53,共5页 Bulletin of Surveying and Mapping
基金 国防预研基金(20060826) 总装备部国防预研项目(513150701)
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参考文献14

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