陈睿, 张祖勋, 张剑清. 扫描地形图中数字高程注记的提取和识别[J]. 武汉大学学报 ( 信息科学版), 2002, 27(2): 194-198.
引用本文: 陈睿, 张祖勋, 张剑清. 扫描地形图中数字高程注记的提取和识别[J]. 武汉大学学报 ( 信息科学版), 2002, 27(2): 194-198.
shu
CHEN Rui, ZHANG Zuxun, ZHANG Jianqing. Identification of Digital Elevation Annotation in Scanned Map[J]. Geomatics and Information Science of Wuhan University, 2002, 27(2): 194-198.
Citation: CHEN Rui, ZHANG Zuxun, ZHANG Jianqing. Identification of Digital Elevation Annotation in Scanned Map[J]. Geomatics and Information Science of Wuhan University, 2002, 27(2): 194-198.
shu

扫描地形图中数字高程注记的提取和识别

Identification of Digital Elevation Annotation in Scanned Map

    摘要
  • 摘要: 分析了扫描地形图中高程点数字注记和等高线数字注记的特点,介绍了一种扫描地形图数字高程注记的识别方法,并着重介绍了该方法采用的技术,包括形态学变换基础上的快速数字字符串分离方法及基于垂直投影的数字字符分割方法等,并给出了性能评价。

     

    Abstract: According to analyzing the features of annotation of spot elevation,this paper gives a method of identifying elevation annotation of a scanned topographic map and discusses the principle of the method,including separating character series on the basis of morphologic translating and cutting apart single character on the basis of vertical projecting.Finally,there is a performance evaluation.

     

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