摘要
提出了一种基于数学形态学的扫描地图符号双向模板匹配识别方法。首先通过对扫描地图进行几何校正、背景消除、对比度增强、二值化和面元去除等预处理,然后采用基于数学形态学的双向模板匹配法对预处理扫描地图符号进行识别。试验结果表明该方法不仅能良好地去除扫描地图上噪声的影响,而且能有效、可靠地识别扫描地图符号,平均正确识别率达90%以上。
Approach of identifying symbols in scanning map based on morphology is proposed.First,preprocessing of canning map was discussed,such as geometry processing,image background subtracting,contrast enhancing and threshold;Then a bidirectional matching method based on morphological was used to identify symbols in the preprocessed scanning map.The experimental results indicate that the proposed method is efficient and reliable to identify symbols in scanning map,and the average correct accuracy of symbol identification is up to 90%.
出处
《红外与激光工程》
EI
CSCD
北大核心
2007年第z2期303-306,共4页
Infrared and Laser Engineering
