摘要
本文针对指针式仪表自动读取中的指针提取提出了一种改进的Hough变换算法,利用双阈值大大提高了Hough变换直线提取的运算速度,降低了占用内存,同时减少了直线误匹配的机会。并且用VC语言实现了该算法,通过实验证明了双阈值的范围,表明了该方法在指针提取中的有效性。
An improved Hough transform is proposed in this paper to detect the index in automatic identific- ation of index-instrument. We use two-threshold value to reduce memory required, time in calculation of hough transform, and the chance of false lines matching.The arithmetic was programmed with VC language to argue the range of the two threshold value.The experimental result shows validity of this method in index extracting.
出处
《中国仪器仪表》
2004年第10期11-13,共3页
China Instrumentation
