利用IMU/DGPS组合导航技术，可以在航空摄影的同时直接获取像片的外方位元素。
The direct measurement of exterior orientations using the integrated IMU/DGPS system proves to be an effective means.
引入粗差探测的外方位元素的解算。
The gross error detection scheme is introduced into the computation of exterior elements.
相机的外方位元素是摄影测量立体重建的重要参数。
Camera's exterior orientation elements are important parameters for photogrammetry stereo reconstruction.
这种方法克服了原有理论的缺陷，使标定出的相机内外方位参数更加精确、稳定。
This approach overcame the demerit of the theory mentioned above, therefore the precision of interior and exterior orientation parameters calibration became better.
稀少控制点地区遥感影像精确纠正的关键在于获得拍摄时刻影像的高精度外方位元素。
The key technique for precise orientation of RS image in GCP scarce region is to obtain the high-precision elements of exterior orientation on the imaging moment.
线阵推扫式影像外方位元素间的强相关性，导致法方程病态，外方位元素的最小二乘估计值误差较大。
The strong interrelationship among exterior elements of linear pushbroom imagery induces normal equation severely ill-posed and least squares value deviated from the true value.
通过与现有基于点云强度图的配准方法的对比实验表明，在低精度初始外方位元素的辅助下，本文方法能够达到较高的配准精度。
The experimental results show that the proposed algorithm can obtain more accurate results in comparison with the registration method based on LiDAR intensity image.
通过与现有基于点云强度图的配准方法的对比实验表明，在低精度初始外方位元素的辅助下，本文方法能够达到较高的配准精度。
The experimental results show that the proposed algorithm can obtain more accurate results in comparison with the registration method based on LiDAR intensity image.
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