本文關(guān)鍵詞：嫦娥二號CCD影像DEM提取方法及月表地形分析初步研究　出處：《成都理工大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 嫦娥二號 SIFT DEM DTA 地形分析

【摘要】：月球是距離地球最近的行星,也是人類進(jìn)行深空探測的第一站。用先進(jìn)的儀器獲取月表地形數(shù)據(jù)將極大地提高人類對月球的認(rèn)知程度。作為月球探測的主要任務(wù)之一，獲取月球表面高精度高程數(shù)據(jù)和地形信息，，對整個探月工程顯得極為重要。 本論文在數(shù)字月球平臺的基礎(chǔ)上，對研究區(qū)的嫦娥二號影像進(jìn)行鑲嵌，利用相關(guān)系數(shù)和SIFT算法對影像數(shù)據(jù)進(jìn)行影像匹配，通過有理函數(shù)模型對影像進(jìn)行立體定位，最終提取出月表區(qū)域高精度的DEM影像。在此基礎(chǔ)上，利用DTA技術(shù)對月表地形進(jìn)行初步的分析和研究，為以后對全月的DEM提取和地形分析提供了一種方法。 通過對以上相關(guān)內(nèi)容的研究，本文提出了以下兩個研究創(chuàng)新點(diǎn)： 1.提出了一種綜合相關(guān)系數(shù)和STFT算法嫦娥二號影像數(shù)據(jù)立體影像匹配提取DEM的流程和方法。 2.提出了一種基于DTA技術(shù)的月表地形特征因子提取技術(shù)和空間分析技術(shù)。 在兩個創(chuàng)新點(diǎn)的基礎(chǔ)上，本文取得了以下三個研究成果： 1.完成了嫦娥影像數(shù)據(jù)的部分鑲嵌工作，為建立數(shù)字月球平臺提供了數(shù)據(jù)支持。 2.在分辨率高達(dá)7米的數(shù)字月球平臺上提取了區(qū)域的DEM數(shù)據(jù)，為利用三線陣CCD數(shù)據(jù)提取DEM數(shù)據(jù)提供了參考和方法，通過生成區(qū)域的DEM影像，為生成三維數(shù)字月球奠定了基礎(chǔ)。 3．對月表地形特征因子進(jìn)行了提取和相關(guān)空間分析，提取了月表的山頂點(diǎn)、坡度、走向、平面曲率和地形起伏度，對月球表面地形進(jìn)行了空間分析，研究月表的可視性。
[Abstract]:The moon is the first planet closest to the earth and is the first station for deep space exploration . Using advanced instruments to acquire lunar surface topography data will greatly improve the cognition of the moon . As one of the main tasks for lunar exploration , it is extremely important to acquire high - precision elevation data and terrain information on the surface of the moon . On the base of the digital lunar platform , the Chang ' e 2 image of the study area is embedded , the image data is matched by the correlation coefficient and SIFT algorithm , the image is stereoscopically positioned by the rational function model , and the high - precision DEM image in the monthly table area is finally extracted . On this basis , the monthly surface topography is analyzed and studied by using the DTA technique , and a method is provided for the DEM extraction and the terrain analysis of the whole month later . Through the research on the above related content , the following two research innovation points are proposed : 1 . A process and a method for extracting DEM from image data of Chang ' e two images with correlation coefficient and STFT algorithm are proposed . 2 . A new technique of feature extraction and spatial analysis based on DTA technique is presented . On the basis of two innovation points , the following three research results are obtained : 1 . The partial mosaic work of the Chang ' e image data is completed , and data support is provided for the establishment of the digital lunar platform . 2 . The DEM data of the area is extracted on a digital lunar platform with a resolution of up to 7 meters . In order to provide a reference and a method for extracting DEM data using the three - line CCD data , the DEM image of the area is generated , which lays the foundation for generating the three - dimensional digital moon . 3 . The terrain feature factor of the lunar surface is extracted and analyzed , and the peak point , slope , trend , plane curvature and topography of the monthly table are extracted , and the terrain of the lunar surface is analyzed and the visibility of the monthly table is studied .

【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：P184.6

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本文編號：1378246