数字图像定位定偏系统研究

License Plate Location Method Based on Image Region Segmentation

在定位或者测量中,经常需要对目标进行偏角测算。偏角测算的工具一般是使用寻北仪。然而寻北仪使用复杂,因此并不普遍适用。提出一种数字图像处理的方法来测算偏角:为目标加上一个参考标靶,先采集目标的数字图像,再定位标靶,对标靶进行图像处理,最后确定偏角。该方法的优点是成本低廉,实验环境易于搭建,操作简单,角度测算比较准确;缺点是对于小角度的测算误差较大。

Angle measurement is high frequency. North-Finder is the most precise apparatus, but it is very expensive and so unwieldy that it is not used widely. In this article, we introduced an angle measurement arithmetic based on digi- tal image processing. A special target is imported to make location and measurement simple. First locate the target, and then process the target to measure the angle. Cheap and easy are the advantage. But it is not very nicety when the angle is very small.