| 一种交互式DEM粗差检测方法 |
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| 引用本文： | 单杰.一种交互式DEM粗差检测方法[J].测绘学院学报,1993(2). |
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| 作者姓名： | 单杰 |
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| 摘 要： | 无论用何种方式建立数字高程模型(DEM),都需要有效的粗差检测(质量控制)。本文从数字影像处理的原理出发,将DEM转换成影像,并对其进行影像处理,从而对DEM中的粗差点(亦即DEM影像中的特征点)进行自动定位或消除。整个程序采用菜单及窗口环境设计,用户操作十分方便。试验结果证实了其有效性。
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| 关 键 词： | 数字高程模型 粗差检测 特征提取 |
An Interactive Method for Blunder Detection in DEM Data |
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| Shan Jie.An Interactive Method for Blunder Detection in DEM Data[J].Journal of Institute of Surveying and Mapping,1993(2). |
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| Authors: | Shan Jie |
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| Abstract: | The blunder detection is needed for DEMs from verious sources. An interactive method for DEM quality control is introduced based on techniques of digital image processing.The DEM data are first transformed to a digital image, in which the gross errors or blunders are behaviored as distinct points or feature points.The feature extraction operators in digital image processing are then implemented to detect those points. The program is designed in the windows environment on Sun Station, and menus are presented for users to select different parameters. The test results demonstrate the efficiency of this blunder detection method. |
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| Keywords: | Digital terrain model Blunder detection Feature extraction |
| 本文献已被 CNKI 等数据库收录！ |
