difference spectrum

However,the endmember spectral variability commonly exists,which leads to the lower accuracy of pixel unmixing.

传统方法假设每个端元具有稳定的光谱特征,然而端元内光谱差异普遍存在,这将导致混合像元分解精度的降低。

In this paper, by use of actual most different spectra to construct original vectors, a new target transformation factor analysis was developed.

提出一种新的目标转化因子分析，其初始向量的构造基于实际最大差异光谱，无需分离即可从红外混合体系中解析出纯组份光谱。