玉米单倍体籽粒特征提取及识别

Corn Haploid Grain Feature Extraction and Recognition

研究了玉米单倍体育种过程经导入基因标记后杂交诱导产生的单倍体与杂合体籽粒特征提取及识别方法,实现了单倍体籽粒的准确识别。以导入基因标记后杂交诱导产生的玉米籽粒为研究对象,根据颜色特征将玉米分为紫色标记、黄色胚乳及白色胚部3部分,通过分析此3部分像素在RGB及HSV颜色空间内的分布特点,提出了(G-B)R/B模型,实现了紫色标记区域的有效提取;根据玉米籽粒形态特点及紫色标记部分的分布特点,提出了一种简单快速的单倍体籽粒识别方法。在单倍体分拣试验台上的试验结果表明,所提出的方法对单倍体的识别准确率达98.07%,且能满足动态检测要求。

A feature extraction and identification method of corn haploid and hybrid kernels was studied. The corn kernels were produced by hybrid induction after importing gene markers to their male parent in corn haploid breeding process. The proposed method made the accurate identification of corn haploid kernels come true. Corn kernels produced by hybrid induction was researched. Firstly, the corn kernels were divided into three parts according to the color distribution, including purple marks, yellow endosperm and white embryo. Then a （ G - B） R/B model was proposed by analyzing color features of pixel samples that got from the three parts. This model could extract the purple marks area effectively. A simple and quick identification method of corn haploid kernels was proposed after researching on morphological characteristics of corn kernels and distribution characteristics of purple marks. Experiments finished in the corn haploid sorting platform, they showed the accurate rate of corn haploid identification was above 98.07% by the proposed method, and it met the requirements of dynamic test.