| 基于数字图像处理的海底三维地形重建方法 |
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| 引用本文： | 谌剑,严平,张静远. 基于数字图像处理的海底三维地形重建方法[J]. 计算机仿真, 2009, 26(10): 90-93 |
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| 作者姓名： | 谌剑 严平 张静远 |
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| 作者单位： | 海军工程大学兵器工程系; |
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| 摘 要： | 水下地形匹配辅助导航是目前导航领域研究的新方向,而分析地形匹配算法需要以水下三维数字地图为基础。为了得到满足匹配精度要求的海底三维数字地图,提出了一种利用GeoTIFF格式的海底地形图像重建数字高程模型(Digital Ele-vation Model,DEM)的方法:首先提取图像中的像素颜色信息和地理信息,然后通过数字图像处理技术得到水深数据规则网格,利用插值方法进行平滑处理,最后对海底三维地形进行重建并利用该图进行了地形匹配仿真。仿真结果证明了上述方法是有效地获取海底数字地图手段,为分析海底地形匹配算法提供了基础。
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| 关 键 词： | 水下地形匹配 三维海底地形数字地图 数字高程模型 数字图像处理 |
A Method for Reconstructing 3D Seabed Digital Map Based Upon Image Processing |
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| CHEN Jian,YAN Ping,ZHANG Jing-yuan. A Method for Reconstructing 3D Seabed Digital Map Based Upon Image Processing[J]. Computer Simulation, 2009, 26(10): 90-93 |
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| Authors: | CHEN Jian YAN Ping ZHANG Jing-yuan |
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| Affiliation: | Dept.of Weaponry Engineering;Naval University of Engineering;Wuhan Hubei 430033;China |
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| Abstract: | Terrain aided underwater navigation is a new direction of navigation technology.A 3D underwater Digital Map is the basis of analyzing terrain matching algorithms.Aiming to get a 3D seabed digital map which fits the precision requirement of matching,a method of how to reconstruct the Digital Elevation Model(DEM)was put forward on the basis of sea-floor terrain image of GeoTIFF file.Firstly getting the colour information and geography information.Secondly generating the Grid DEM of depth data based upon digit... |
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| Keywords: | Underwater terrain matching Three-dimensional sea-floor terrain digital map DEM Digital image processing |
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