| 摘要: |
| 针对基于计算机视觉的作物行中心线定位困难问题,提出了基于垂直投影法的作物行定位方法。对作物图像运用过绿特征值分割作物和背景,将得到过绿特征图像划分为若干水平图像条,对图像条过绿特征值进行垂直投影,求取投影曲线上突出峰点的位置;利用稳健回归法对位置点进行线性拟合得到作物的行中心线。采用320×240像素的大豆图像进行作物行定位实验,结果表明采用该方法能够获得较好的定位结果。 |
| 关键词: 作物行 中心线 过绿特征 垂直投影法 曲线峰点 |
| DOI：10.11841/j.issn.1007-4333.2005.03.073 |
| 修订日期：2004-12-16 |
| 基金项目: |
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| Orientation technique of crop rows based on computer vision |
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| Abstract: |
| In this paper a method based on vertical projection was described,because it was difficult to locate crop rows centre lines using computer vision. Firstly, the row crop and background were segmented by the excess green value. Secondly, the image strips were divided by crop image horizontally and the position was calculated by detecting the peak on the curve resulting from vertical projection of strips. Finally, the crop rows center lines were accomplished by robust regression. The experimental results of soybean images, which was 320 pixels width and 240 pixels height, confirmed the effectiveness of this method. |
| Key words: crop row,centre line,excess green,vertical projection,curve peak |
