本文選題：遙感圖像分析 + 數(shù)字高程模型��； 參考：《西北大學(xué)》2014年碩士論文

【摘要】：隨著計(jì)算機(jī)軟件和硬件技術(shù)的發(fā)展,以及3S(RS、GPS、GIS)技術(shù)在地質(zhì)勘查領(lǐng)域的廣泛應(yīng)用,基于遙感圖像和地形數(shù)據(jù)分析、處理技術(shù)的地質(zhì)三維可視化研究得到不斷發(fā)展,地質(zhì)資料、地質(zhì)成果的三維可視化處理,將改變傳統(tǒng)地質(zhì)成果的表達(dá)方式,對地質(zhì)成果的深入理解和推廣應(yīng)用起到積極作用。 本文以青藏高原可可西里烏蘭烏拉湖地區(qū)遙感圖像解譯及三維可視化系統(tǒng)實(shí)現(xiàn)為例,論述了遙感圖像解譯處理過程,以及數(shù)字高程模型的生成,設(shè)計(jì)實(shí)現(xiàn)了基于OpenGL與虛擬現(xiàn)實(shí)可視化技術(shù)相結(jié)合的烏蘭烏拉湖地區(qū)三維可視化系統(tǒng)；討論了地形的三維逼真顯示、交互控制、三維圖形輸出、勘查路線與數(shù)據(jù)管理；該系統(tǒng)為地質(zhì)工作的前期設(shè)計(jì)、野外實(shí)地工作、特征數(shù)據(jù)分析、地形地質(zhì)結(jié)構(gòu)以及資源成果分析評價(jià)等工作提供了良好的處理平臺。 主要工作成果如下： 1、以TM、ETM+、ALOS衛(wèi)星遙感圖像為例,通過實(shí)驗(yàn)分析,討論了區(qū)域遙感圖像優(yōu)化處理方法。 2、分析了由地形數(shù)據(jù)構(gòu)建數(shù)字高程模型的算法,并對逐點(diǎn)插入算法生成DEM進(jìn)行了實(shí)驗(yàn)驗(yàn)證,研究表明通過Delaunay三角形構(gòu)建TIN網(wǎng),可以快速、逼真地構(gòu)建三維地形。 3、設(shè)計(jì)了以烏蘭烏拉湖地區(qū)為例的三維可視化系統(tǒng),實(shí)現(xiàn)了該地區(qū)地質(zhì)、地形的三維逼真場景顯示,并具備漫游、勘查路線管理和數(shù)據(jù)輸出等功能。
[Abstract]:With the development of computer software and hardware technology and the wide application of 3s (RSN GPS GIS) technology in the field of geological exploration, 3D geological visualization research based on remote sensing image and terrain data analysis and processing technology has been continuously developed, and geological data have been continuously developed. The 3D visualization of geological achievements will change the expression of traditional geological achievements and play a positive role in the further understanding and popularization of geological achievements. Taking the realization of remote sensing image interpretation and 3D visualization system in Hoh Xili Wu Lan Lake area of Qinghai-Xizang Plateau as an example, the process of remote sensing image interpretation and the generation of digital elevation model are discussed in this paper. Based on the combination of OpenGL and virtual reality visualization technology, the 3D visualization system of Wu Lan Wula Lake area is designed and implemented, and the 3D lifelike display, interactive control, 3D graphic output, exploration route and data management of the terrain are discussed. The system provides a good processing platform for the preliminary design of geological work, field work, characteristic data analysis, topographic geological structure and resource results analysis and evaluation. The main results are as follows: 1. Taking the remote sensing image of TMN ETM / ALOS satellite as an example, the optimal processing method of regional remote sensing image is discussed through experimental analysis. 2. The algorithm of constructing digital elevation model from terrain data is analyzed. Experimental results show that constructing tin network by Delaunay triangle can construct 3D terrain quickly and realistically. 3. A 3D visualization system is designed, which takes the Wu Lan Wula Lake area as an example. The 3D realistic scene display of geology and terrain in this area is realized, and it has the functions of roaming, route management and data output.
【學(xué)位授予單位】：西北大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP753

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