农业机械学报2018，Vol.49Issue(4)：53-59,7.DOI:10.6041/j.issn.1000-1298.2018.04.006
基于扇环形区域图像分割的小麦秸秆截面参数测量方法
Measurement Method of Wheat Stalks Cross Section Parameters Based on Sector Ring Region Image Segmentation
摘要
Abstract
The observation and analysis of microstructure of crop stalk are of great value.Based on the structure and gray features of tissues in wheat stalk micrograph,a sector ring region-based image segmentation method was proposed,by which the sclerenchyma and vascular bundles in the micrograph would be separated from the background precisely.The inner and outer contours of the wheat stalks crosssection were got from an approximate annular.The annular that the sclerenchyma and vascular bundle belonged to was firstly located roughly.On the basis of the location information,the center of the section was taken as the origin and drawn rays towards to the outer contours of the annular.By this operation,the annular was divided into many small sector ring regions.Then small regions were segmented respectively by using the Otsu algorithm.Finally,the segmentation results were processed such as superposition,and the complete sclerenchyma or vascular bundle would be obtained.Using the segmentation results all kinds of parameters of the section would be evaluated accurately.It was showed that the method presented had higher accuracy and stronger robustness than the traditional Otsu method in segmenting the low-quality image which caused by slicing,dying and photographing in the process of micrograph acquisition.It improved the utilization rate of the slice sample and reduced the labor intensity.The accuracy of all the parameters obtained by using the measurement system was more than 94.6％,which would play an important practical role in the research of wheat stalk microstructure.关键词
小麦秸秆/显微图像/测量/图像分割Key words
wheat stalk/micrograph/measurement/image segmentation分类
信息技术与安全科学引用本文复制引用
徐胜勇,彭程里,陈可,王令强,任喜峰,段宏兵..基于扇环形区域图像分割的小麦秸秆截面参数测量方法[J].农业机械学报,2018,49(4):53-59,7.基金项目
国家自然科学基金项目(61503146)和中央高校基本科研业务费专项资金项目(2662017JC043) （61503146）
