Ke Xiao, Du Mingzhi. Detection of maize seeds based on multi-scale feature fusion and extreme learning machine[J]. Journal of Image and Graphics, 2016, 21(1): 24-38. DOI: 10.11834/jig.20160104.
The detectionof maize seeds and other crops is a key problem in the field of agricultural informatization.In this paper
to enhance detection and improve accuracy rate
we present a detection algorithm for maize seed on the basis of extreme learning machine (ELM) and multi-scale feature fusion. In the first part of this paper
the feature of maize seed is described as the combination of local features and global features. Local features can be described as a multi-scale histogram of oriented gradient
and global features can be described as the color feature of HSV. In the second part
ELM will be used as the detection algorithm against long training period and slow detection speed
which are the characteristics of traditional BP neural network and SVM. Furthermore
the detection model uses the parallel algorithm to significantly decrease the time used in the training of each classifier. Furthermore
the high resolution of the original image can cause long detection periods and consume a large amount of memory. To address this problem
we propose a local means of an image compression algorithm. Finally
considering that the sliding windows of centralized scanning can produce a problem in creating multiple overlapping windows capturing the same object
we propose a local window fusion algorithm based on fuzzy clustering to address this problem. The simulation results show that the method proposed is able to accurately detect maize seeds. The accuracy of detection of maize seeds can reach 97.66% with an error of less than 0.1%. Compared with traditional methods
the no damage method proposed in this paper can improve the speed and accuracy of detection and has no strict hardware requirements.