轻型飞机成像光谱图象几何校正技术研究

成像光谱测量技术是近年来遥感领域的发展前沿之一，该技术以高光谱分辩率、高空间分辩率、高时相分辨率及普像合一为主要特征，在国民经济各个领域得到广泛应用。在剖析轻型飞机成像光谱测量系统成像环境特征的基础上，深入研究了低空遥感图象几何学理论，并利用数学模型分析方法，建立了航空成像光谱图象几何畸变模式及几何校正模型；提出了适合本系统的几何处理流程。利用所建立的几何校正模型和软件，对机载可见光/短波红外成像光谱数据进行了几何特性分析及几何校正，取得较好的图象处理效果，并证实了系统的实用性。

Study on Image Geometric Calibration Technology of the Light Aeroplane Imaging Spectrum Data

The imaging spectrum technology is one of the foreland research field in the remote sensing development. Its main characteristics are hyperspectral resolution, high spatial resolution, high time resolution and composition of spectrum and image, It has been widely used in the civil economy. Based on analyzing imaging environment of the light aeroplane remote sensing system, this article deeply studied the geometric theory of low altitude remote sensing images. Adopting mathematics modeling method, the author established geometric distortion analysis methods and calibration models, and presents geometric processes. Using the models and software presented in this article, Geometric characteristics analysis and calibration has been carried out for the VIR/SWIR imaging spectrum data, and better processing results are achieved. Furthermore, these results also confirm the practicability of the model.