摘要
依据霍夫(Hough)变换原理,给出了多条直线检测的算法,分析了基于霍夫变换(HT)检测多条直线的特点,即直线—峰值对应性,检测直线不确定性(针对斜率大于0的情况),累加器A的值与待测直线段长度的关系,带噪声多条准直线的参数空间峰值特征,倾角为90°的直线段参数空间峰值特征,并有针对性的提出了改进方法。提出了依据峰值自动搜索填充范围的算法,实现了峰值的搜索,并通过马铃薯作物的行检测验证了该方法的有效性。
In this paper, the multi-line detection arithmetic and its characteristics have been described based on Hough transformation principle. The characteristics include the corresponding of line ＆peak value, the uncertainty of multi-line detection for above-zero slope lines, the relationship between accumulator value and detected line-length, the peak value characteristics of parameter space for the multi similar lines with noise and the peak value characteristics of parameter space for the obliquity which is just 90 degrees. A arithmetic that can search for the filling area automatically which is helpful to search for peak values has been put forward,and in addition by the detection of potato croplines, the validity has been testified.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
2008年第6期802-806,共5页
Journal of Huazhong Agricultural University
基金
湖北省自然科学基金项目(2005ABA2249)资助
关键词
HT
多条直线检测
算法改进
作物行检测
Hough transformation（HT） multi-lines detection
improved arithmetic
detection of crop lines
