Then image preprocessing techniques including image denoising, geometric and radiometric rectification, registration and histogram matching are investigated.

• 论文首先介绍了遥感技术和多传感信息融合的基本概念与理论，进而对降噪、几何校正、辐射校正、配准、直方图匹配等遥感图像融合的预处理过程作以论述。