摘要
在嫁接育苗体系中,如何利用标准化苗实现自动供苗成为该体系的关键技术之一。而定向播种是生产标准化苗的前提条件。为此,以南瓜种子为研究对象,研究了大粒种子方向的判断方法。研究方法为利用CCD彩色摄像机采集种子的原始图像,通过二值化得到种子的二值图像;在二值图像上分别获取种子惯性长轴上的两个边界点,然后分别选取以两个边界点为基准的向种子内部延伸且具有相同面积的矩形;比较两个矩形内种子的面积,利用种子的外形特征判断种子出芽点所在的方向。试验结果表明,利用此研究方法可以有效地判断出芽部位比较尖的种子方向,为相关定向播种装置的研究提供有利的依据。
Providing standardization seedlings automatically for grafting machine is one of the key technologies of grafting -seedling systems. While the prerequisite of producing standardization seedlings is directional sowing. With the pumpkin seeds, this article aims at judging the budding point of large seeds. Using the CCD color camera to capture the original image, the binary image was obtained by binaryzation processing. The two boundary points of inertial long axis were se- lected as the basis to extend two rectangles with the same internal area towards the seed, and then determine the direction of the budding by comparing the seed area that is in the rectangles. The results showed that this method effectively deter- mined the budding point of the large seeds that has the same shape feature of the pumpkin seeds. The method may provide the useful information for the directional sowing machine research.
出处
《农机化研究》
北大核心
2012年第11期125-128,共4页
Journal of Agricultural Mechanization Research
基金
国家"863计划"项目(2012AA10A506)
西北农林科技大学人才基金项目(Z111020902)
关键词
大粒种子
出芽点
面积
方向
large seeds
budding point
area
direction
