Map pattern recognition is an important research direction in mapping automation now. Recognizing map information automatically from scanning map by computer carves out a new way for map digital.

地图模式识别是目前制图自动化的一个重点研究方向，利用计算机从扫描地形图上识别和提取地图信息为地图数字化开辟了新的途径。

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With the application of Digital Map and Geographical Information System and progress of Computer Visualization, Screen Map is developed.

屏幕地图是随着数字地图和地理信息系统技术的应用、计算机可视化研究的深入而产生的。

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Based on theories of Computer Graphics, Digital Image Processing, Pattern Recognition and combined characteristic of geological contour-map, we present one kind of intelligent tracking algorithm.

依据计算机图形学、数字图像处理和模式识别理论，并结合地质等值线图的特点，给出了一种图像智能跟踪算法。

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