| 像底点用于POS系统直接对地目标定位 |
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| 引用本文： | 付建红.像底点用于POS系统直接对地目标定位[J].测绘科学,2012,37(5):116-118. |
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| 作者姓名： | 付建红 |
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| 作者单位： | 武汉大学遥感信息工程学院,武汉,430079 |
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| 基金项目： | 863计划(2010AA122202);中央高校基本科研业务费专项资金(4082008) |
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| 摘 要： | 根据像底点与航摄像片外方位角元素的几何关系,本文提出利用像底点求解IMU视准轴误差,以提高POS系统直接对地目标定位精度的方法,并用一组实际飞行的数据进行了试验。结果表明,该方法可有效提高POS系统直接对地目标定位的精度,而无需布设特定的检校场和地面控制点。对带POS系统的城区大比例尺航空影像对地目标定位有一定实用价值。
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| 关 键 词： | 机载POS 像底点 目标定位 |
Direct georeferencing by Position and Orientation System using photo nadir point |
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| FU Jian-hong.Direct georeferencing by Position and Orientation System using photo nadir point[J].Science of Surveying and Mapping,2012,37(5):116-118. |
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| Authors: | FU Jian-hong |
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| Institution: | FU Jian-hong(School of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China) |
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| Abstract: | Based on the geometry relation of photo nadir point and the elements of exterior angular orientation of aerial photograph,a method of solving IMU boresight misalignment by using photo nadir point was proposed to improve the direct georeferencing accuracy of POS in the paper.The method was tested by a set of actual flight photograph,the experiments showed that the accuracy of direct georeferencing using POS could be improved effectively.The proposed method does not need a specific calibration field and ground control points.Therefore it would have practical application value in direct georeferencing when taking large-scale aerial photography over urban areas with POS. |
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| Keywords: | Position Orientation System(POS) photo nadir point direct georeferencing |
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