超光谱图像预处理技术  

Technology of Pre-processing for Hyperspectral Images

作　　者：王恒立[1] 许强[2] 陈永生[1] 左维[1] 

机构地区：[1]东北电子技术研究所,辽宁锦州121000 [2]北京理工大学,北京100081

出　　处：《光电技术应用》2005年第1期43-46,57,共5页Electro-Optic Technology Application

摘　　要：详细描述了对超光谱图像进行预处理的技术原理和方法.首先介绍了针对辐射失真的非均匀校正、提出了三种非均匀校正的方法并进行了比较,其后针对空间位置失真的畸变校正、指明了畸变校正所需的两个步骤为空间变换和灰度插值并以实例进行说明,最后简单介绍了光谱合并技术,它利于系统实时运行并能够提高图像信噪比.The technical principle and methods of hyperspectral images pre-processing were described. At first, three methods of non-uniformity correction dealing with radiation distortion were presented and compared, and then the idea of the distortion correction for spatial distortion correction was introduced and demonstrated by an example. The spatial distortion follows two steps: one is the spatial transformation, the other is gray level interpolation. Finally, the spectral binning used for real-time processing and image SNR improvement was introduced briefly.

关 键 词：超光谱图像 非均匀校正 畸变校正 光谱合并 

分 类 号：TN911.73[电子电信—通信与信息系统]