插值算法在高光谱数据中的应用

针对高光谱遥感数据具有波段多，各光谱通道间连续，含数据信息量大，像元光谱曲线交叉并不甚多等特点，就分析光谱曲线特点之后，选择性的运用波段插值方法进行光谱重建，利用MATLAB平台对多种插值算法进行了拟合实现。通过对比实验插值结果与原始数据，以及各插值算法插值精度，均方差和峰值信噪比等图像参数相互比较，显示用二次拟合的方法能够得到较好的拟合效果。

Interpolation Algorithm in the Application of Hyperspectral Data

The hyperspectral data have many bands,the spectrum lines between channel are continuous ,much more data information is contained, and spectrum curve is not very much cross and so on. To the charateistics mentioned above, spec- trum is reconstructed by selective band interpolation on Matlab after the spectrum curve characteristics analysed. At last, com- pare the results of each other, mean variance of each other and the peak value signal-to-noise ratio, come to the conclusion of the method is simple, and the two curve fitting with the better reconstruction precision.