HSL和HSV色彩空间
人工智能
膨胀(度量空间)
像素
灵敏度(控制系统)
职位(财务)
过程(计算)
计算机视觉
基本事实
计算机科学
数学形态学
数学
图像处理
模式识别(心理学)
图像(数学)
工程类
组合数学
病毒学
操作系统
经济
生物
电子工程
病毒
财务
作者
Esmael Hamuda,Brian McGinley,Martin Glavin,Edward Jones
标识
DOI:10.1016/j.compag.2016.11.021
摘要
Developing an automatic weeding system requires robust detection of the exact location of the crop to be protected from damage. Computer vision techniques can be an effective means of determining plant location. In this paper, a novel algorithm based on colour features and morphological erosion and dilation is proposed. This process segments cauliflower crop regions in the image from weeds and soil under natural illumination (cloudy, partially cloudy, and sunny). The proposed algorithm uses the HSV colour space for discriminating crop, weeds and soil. The region of interest (ROI) is defined by filtering each of the HSV channels between certain values (minimum and maximum threshold values). The region is then further refined by using a morphological erosion and dilation process. The moment method is applied to determine the position and mass distribution of objects in video sequences, as well as to track crops. The performance of the algorithm was assessed by comparing the obtained results with those of ground truth methods (manual annotation). A sensitivity of 98.91% and precision of 99.04% was achieved.
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