测绘学报

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机载三线阵传感器ADS40的几何检校

涂辛茹,许妙忠,刘丽   

  1. 武汉大学
  • 收稿日期:2010-01-04 修回日期:2010-03-01 出版日期:2011-02-25 发布日期:2011-02-25
  • 通讯作者: 涂辛茹

The Geometric Calibration of Airborne Three-Line-Scanner ADS40

  • Received:2010-01-04 Revised:2010-03-01 Online:2011-02-25 Published:2011-02-25

摘要: 相机几何检校是摄影测量工作中的关键环节。ADS40为集成POS系统的机载三线阵数字航摄仪。本文分析了ADS40相机独特的POS系统辅助传感器几何关系,介绍了基于BROWN模型的利用附加参数的自检校法,设计了一套针对ADS40的相机检校方案,包括:如何判断几何检校的必要性、如何进行几何检校,以及如何验证几何检校成果的有效性。实验结果证明,对ADS40进行相机几何检校可以有效的提高数据的精度和可靠性。

Abstract: Geometric calibration of sensor is the key part of photogrammetry. ADS40 is POS supported airborne Three-Line-Scanner. The paper introduces the unique POS supported sensor geometric relation of ADS40, and self calibration with additional parameters based on BROWN model. According to ADS40, a set of calibration programs is designed, considering: how to determine the necessity of geometric calibration, how to carry out geometric calibration, and how to verify the validity of the result of the geometric calibration. Experimental results show that the self-calibration of the ADS40 is effective to improve data accuracy and reliability.