IKONOS数据在土地利用动态监测中的应用方法研究

Study on the Application of IKONOS Imagery in Dynamically Monitoring Land-use Changing

对高分辨率 (1m)的多光谱 IKONOS影像在土地利用变化动态监测中的应用方法进行了研究试验。通过对结果的分析和与其他常规方法结果的对比分析 ,提出了将多光谱 IKONOS影像和全色 SPOT影像叠加作主分量变换 ,然后选取适宜的特征分量进行假彩色合成的方法 ,来生成光谱特征变异影像以突出变化信息。该组合方法不仅能保持原有影像的丰富信息 ,而且可突出变化信息 ,充分展示了 IKONOS影像的巨大应用潜力。

The paper is mainly about the application of IKONOS image in dynamically monitoring land use changing. A comprehensive approach is proved through analyzing the result and comparing with other results with ordinary approaches. The approach is that IKONOS and SPOT images are performed PCA after they are overlaid directly at first, then suitable principle components are picked to compose a pseudo color image in order to get abnormal spectral image which will highlight the changing information. The approach does not only remain the diversify information of the images, but also highlights the changing information. The application potential of IKONOS imagery is demonstrated as well.