Radiometric Correction of Airborne Imaging Spectrometer Data
机载成像光谱图象边缘辐射畸变校正

Abstract Quality and interpretability of airborne imaging spectrometer data generally are degraded by radiometric distortions which are related to the larger viewing field of remote sensor. During the period of data acquisition, some parameters, such as path radiance, atmospheric attenuation and the sun object sensor geometry, continuously change with viewing angle, which causes a severe radiometric distortion on airborne imaging spectrometer data in scanning direction. Additionally, non Lambertin reflection of ground objects and relief of terrain strongly complicate the radionetric distortion. It is impossible to do data processing and quantitative analysis if radiometric distortions of data are not corrected properly. In this paper, a new method based on image itself is developed to correct edge radiometric distortion of airborne imaging spectroneter data. Experimental results presented in the paper illustrate that the proposed method is more practical, effective and efficient for radiometric restoration of airborne imaging spectrometer data.