This paper concentrates on how to track and extract the isogram cluster from the map image so that they can be vectorized and inputted into the spatial database rapidly and automatically.
研究地图中等值线群的快速输入问题，给出了自动跟踪提取等值线群的有效算法。
This paper concentrates on how to track and extract the isogram cluster from the map image so that they can be vectorized and inputted into the spatial database rapidly and automatically.
研究地图中等值线群的快速输入问题，给出了自动跟踪提取等值线群的有效算法。
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