【作者】 田辉；

【导师】 成秋明； 陈建平；

【作者基本信息】 中国地质大学（北京） ， 资源与环境遥感， 2011， 博士

【摘要】 随着嫦娥一、二号探月卫星的成功发射,标志着我国航天事业的发展进入了一个崭新的时代,许多学者都已相继展开了基于嫦娥数据的研究工作,对嫦娥一号卫星三线阵CCD影像处理模型与方法的研究是一项具有难度的工作,也是我们获取月表三维影像与探测月表构造的必要途径之一。1.本文在对嫦娥一号卫星CCD影像与激光高度数据进行拼接、去噪、插值、分幅等处理的基础上,与ULCN2005联合控制网进行了对比分析,提出了利用激光高度数据与CCD影像数据相结合的方法生成月面控制点,并结合嫦娥一号卫星三线阵CCD成像的特点,提出嫦娥一号卫星的CCD影像既可以按照中心投影成像方法处理,也可以按照行中心投影的方法进行处理,在无卫星轨道参数的情况下,成功的利用月面控制点计算了嫦娥一号卫星CCD影像的外方位元素。2.本文细致分析了建立嫦娥一号卫星CCD影像的有理函数成像模型对于月球遥感影像研究的意义,并创新性的利用商用遥感卫星有理函数建模的方法为嫦娥一号卫星建立了三阶有理函数模型,通过实际测试,三阶有理函数模型的精度接近于严格成像模型。3.针对嫦娥一号卫星三线阵CCD影像的特点,结合已建立的月面控制点、外方位元素、有理函数模型,比较分析了立体影像前方交会、有理函数立体定位、光束平差等几种立体成像模型,并建立了嫦娥影像的DEM,可达到理想精度。4.从寻找适用于嫦娥CCD月面影像立体匹配方法的角度出发,通过匹配实验,将基于灰度的影像匹配、基于Moravec、Forstner、Harris特征点的影像匹配和基于SIFT算子的影像匹配等方法进行了详细的比较和分析,得出基于SIFT算子的匹配方法在月面影像立体匹配中具有更好的效果。5.为了进一步满足嫦娥工程研究工作的需要,提高效率,本文提出建立嫦娥一号卫星CCD立体影像处理系统,通过系统需求分析、系统总体设计将影像处理系统划分为:数据预处理、单幅影像处理、立体影像处理、立体影像匹配等功能模块,在整合已有算法程序的基础上进行系统原型的开发,并取得了初步成果。更多还原

【Abstract】 The Successful launching of Chang’E-1 and Chang’E-2 lunar probe satellites marks the coming of new era of China aerospace industry. Many scholars had done a lot research to the data colleted by Chang’Es. The research to the model of image processing and data process of Chang’E-1’s three-line-array ccd image is a very fundamental work which is a necessary way to get the three dimensional (3-D) image and structure of lunar surface.This article proposed to combine the laser height data and CCD image data to create the lunar surface controlling points after contrasting ULCN2005’s DEM and the data processed by marching, de-noising, differencing and formatting the CCD image of Chang’E-1 and laser height data. According to the characteristics of the CCD camera, the article suggested that CCD image could be processed not only by perspective imagery, but also by line perspective imagery. EO(exterior orientation elements) of CCD image is calculated successfully by controlling points of lunar surface without the parameter data of satellite orbit.The article deliberately analyzed the value of creating the imaging RFM(rational function model) of CCD image to the research of lunar remote sensing and imaging, and created the RFM of third order for Chang’E-1 using the commercial remote sensing satellite. The precision of RFM is very close to rigorous sensor model after practical testing.Specific to the characteristics of Chang’E-1 three-line-array CCD image, combining controlling points of lunar surface, EO and RFM, the article proposed three imaging models which include stereo image space intersection、stereo position of RFM, bundle adjustment model. And construct DEM of Chang’E-1 image which reach perfect precision after experimental analysis.Aim for find proper three-dimensional matching for CCD lunar image, the article deliberately contrasted and analyzedgray scale correlation method, feature matching based on Moravac operator, Forstner operator, Harris operater, SIFT feature matching, and concluded that SIFT feature matching had better result.In order to meet the need of research to Chang’E project and improve efficiency, the article proposed to set up the processing system of CCD three-dimensional imaging which should include the pre-processing, single image processing, 3-D image processing, 3-D image matching, and et al., after analyzing the system demand and general design. The article proceeded with prototypal system development combining with previous algorism programs and got preliminary results.更多还原