| 仲晓春1，陈 雯2，刘 涛2，郝心宁1，李哲敏1，孙成明.基于图像技术的小麦籽粒三维信息测量[J].广东农业科学,2016,43(2):150-155 |
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基于图像技术的小麦籽粒三维信息测量 |
| Three-dimensional information measurement of wheat grain based on image technology |
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| DOI： |
| 中文关键词: wheat grain three-dimensional shadow image analysis MSER |
| 英文关键词: |
| 基金项目: |
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| 摘要点击次数: 1722 |
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| 中文摘要: |
| 为了实现小麦籽粒三维信息的快速测定，设计了一种利用图像分析技术测量小麦籽粒长、宽、厚信息的方法。利用麦粒最稳定极值区域（MSER）的长和宽，借助一定角度的光源使麦粒产生影子，根据不同厚度麦粒产生影子的宽度不同来测定籽粒的厚度，从而获得麦粒的三维信息。通过对4 个不同小麦品种共256颗麦粒进行图像处理测量和游标卡尺测量实验，在比较两种方法的试验结果发现，两者测量麦粒长、宽、厚的相关性均较高，R2 值均高于0.9，RMSE 分别为0.0988、0.08413、0.0917。结果表明借助光源通过单幅二维图像可快速准确测量小麦籽粒三维信息，可为小麦籽粒三维信息智能化测量提供参考。 |
| 英文摘要: |
| In order to get the three-dimensional information of wheat grains rapidly，a method based on image analysis technology was designed to calculate the length，width and thickness of wheat grains. Minimal outer rectangle of grain was used to calculate the grain's length and width. The striplight at specific angles was used to generate shadows of wheat grains，and those shadows could describe the thickness of grains one-to-one. We measured the 256 grains of 4 varieties with image analysis technology and vernier caliper. Then we compared the results and got a high correlation coefficient（ R2>0.9），respectively. The root mean square error of the length was 0.0988，and the width and thickness were 0.08413 and 0.0917. All the results demonstrated that the three-dimensional information of wheat grains could be obtained by a two-dimensional picture depending on the light source，and the method discussed in this paper is promising and encouraging to obtain the three-dimensional information of wheat grains. |
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