Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4759081 | Computers and Electronics in Agriculture | 2017 | 8 Pages |
Abstract
An automated method for maize and weed detection is very important to efficiently remove weeds and precisely calculate the quantity of maize. Color features were used in this study to investigate a simple maize-detection method using a color machine-vision system. Conventional image segmentation methods based on RGB values cannot separate maize from weeds because of the highly similar image RGB values of these plants. Thus, a post-processing algorithm was developed to distinguish maize from weeds after image preprocessing. Color indices were used to develop a classification model. The nine optimal features were selected by principal component analysis to reduce the effect of illumination. Finally, support vector data description was used as a classifier to differentiate maize from the mixes of different species of weeds. Pictures were taken by a commercial camera and used to verify the stability of the algorithm. Results show that the overall accuracy for three years is 90.19%, 92.36% and 93.87%, respectively. And the color indices used in this work were stable under various weather conditions and over time.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Yang Zheng, Qibing Zhu, Min Huang, Ya Guo, Jianwei Qin,