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Studies on automation of root vegetable thinning (Part 2): detection of radish seedling using automatic thresholding method

机译:根植物稀土自动化研究(第2部分):自动阈值法检测萝卜幼苗

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The objective of this research is to develop an automatic system for thinning out radish seedlings. In part 1, we discussed a new cultivation method and the best time for thinning out, suited to automatic system. This paper proposed an algorithm how to determine which radish seedling should be thinned out. The approach, based on the OTSU's automatic thresholding method, was firstly applied to acquire the binary images, using the information of ExG (Extra Green) and brightness of radish seedling images. Secondly, we took a projection of the binary image onto horizontal X direction, particularly calculated the summation of binary image's pixels on the vertical Y direction. And then using the summation, the radish seedlings that should thin out, are determined. Finally, the experiments performed on 439 radish seedling images taken from the field, showed the proposed algorithm is effective for about 97% of total images.
机译:本研究的目的是开发一种用于稀疏萝卜幼苗的自动系统。 在第1部分中,我们讨论了一种新的栽培方法和稀疏的最佳时间,适合自动系统。 本文提出了一种算法如何确定应该稀释哪种萝卜幼苗。 首先应用基于OTSU的自动阈值方法的方法来获取二进制图像,使用EXG(额外绿色)和萝卜幼苗图像的亮度。 其次,我们将二进制图像投射到水平X方向上,特别是计算垂直y方向上二进制图像的像素的总和。 然后使用求和应该稀疏的露出幼苗。 最后,在从该领域拍摄的439萝卜幼苗图像上进行的实验显示,该算法占总图像的约97%的算法。

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