机载高光谱图像边缘辐射校正并行处理系统设计
时间:2017-03-02 22:53 来源:毕业论文 作者:毕业论文 点击:次
| 摘要高光谱遥感是一种新型的遥感探测手段，在军事和民用领域都有着广泛的应用。由于大气效应、地物反射非朗伯特性、成像仪的大视场角、仪器-太阳-目标相对几何关系等因素综合影响，光机扫描式的机载高光谱图像往往存在边缘辐射畸变现象，严重影响了数据表达信息的可靠性和有效性。 本文在分析高光谱遥感技术及国内外机载高光谱图像边缘辐射校正研究现状的基础上，采用矩匹配方法设计实现了机载高光谱数据边缘辐射校正预处理系统。首先，对不同的边缘辐射校正方法进行了研究对比，其次给出了基于矩匹配法的高光谱边缘辐射校正系统流程和核心模块设计，然后采用OpenMP技术对边缘辐射校正算法进行并行优化处理，最终基于VC++集成开发环境设计实现了基于OpenMP的机载高光谱边缘辐射校正并行处理软件系统。实验表明，本文设计的系统能够消除光机扫描式机载高光谱数据的边缘辐射畸变效应，提高高光谱遥感图像的质量，从而促进高光谱遥感的定量化应用能力；相应的并行优化处理能够在多核计算机环境下有效提高边缘辐射校正效率。6251 关键字：高光谱遥感边缘辐射校正 矩匹配 并行优化 毕业设计说明书（论文）外文摘要 Title Edge radiation correction parallel processing for airborne hyperspectral image Abstract Hyperspectral remote sensing is a new type of remote sensing instrument, it have a wide range of applications inn the military and civil fields. Due to atmospheric effects,object reflectance non-lambert property, imaging angle,instrument-the sun-the target relative to the combined effect of factors such as geometry relationship,scanning type airborne hyperspectral image often has edge radiation distortion,it affected the reliability and validity of the information on data expression. Based on the analysis of hyperspectral remote sensing technology and the domestic and foreign Airborne Hyperspectral Image radiation correction on the basis. First, on different edge radiation correction method is studied, the second is given based on the matching method of hyperspectral Bureau edge radiation correction system process and core module design, and then uses the OpenMP technology on the edge of the radiation correction algorithm for parallel processing, finally based on the VC++ design of integrated development environment for OpenMP system. Experimental results show that, this system can eliminate the scanning type Airborne Hyperspectral Data edge radiation distortion effect,improve the image quality, thus promoting the hyperspectral remote sensing quantitative application ability,in multi core computing machine environment. Keywords: Hyperspectra remote sensing edge radiation correction Moment matching Parallel optimization 目 次 1 绪论 1 1.1 研究背景 1 1.2 国内外研究现状 1 1.3 研究目的和意义 2 1.4 论文研究内容 4 2 相关概念与技术 4 2.1 高光谱遥感简介 4 2.1.1 高光谱遥感概念 4 2.1.2 高光谱遥感图像简介 5 2.2 机载高光谱图像边缘辐射畸变校正简介 6 2.3 并行优化处理 7 2.3.1 并行处理简介 7 2.3.2 并行处理工具简介 8 3 基于矩匹配的边缘校正系统设计 9 3.2 系统设计及关键技术 10 (责任编辑：qin) |