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Scientia Silvae Sinicae ›› 2020, Vol. 56 ›› Issue (3): 73-81.doi: 10.11707/j.1001-7488.20200308

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Method of Image Recognition for Lepidopteran Insects Based on Improved Differential Evolution Algorithm

Dakun Lin1,2,Shiguo Huang1,2,*,Feiping Zhang2,Guanghong Liang2,Songqing Wu2,xia Hu2,Rong Wang2   

  1. 1. Key Laboratory of Smart Agriculture and Forestry, Fujian Province University Fujian Agriculture and Forestry University Fuzhou 350002
    2. Key Laboratory of Integrated Pest Management in Ecological Forests, Fujian Province University Fujian Agriculture and Forestry University Fuzhou 350002
  • Received:2018-09-11 Online:2020-03-25 Published:2020-04-08
  • Contact: Shiguo Huang

Abstract:

Objective: In this study, based on computer image processing technology to extract insect image features, a new feature selection technique was proposed to screen features related insect identification. The technique is developed for accurately and quickly identifying the species of Lepidopteran insects. Method: In order to improve the universality of the model, the open-source Leeds butterfly dataset and the dataset of the forest Lepidopteran insects were used in this study. The improved texture feature extraction algorithm (DRLBP) was used to extract the texture features of Lepidopteran insect images to obtain high recognition accuracy. The hamming distance was used to calculate the distance between particles and measure the population diversity. A method of automatically adjusting the diversity in the evolutionary process was proposed. A binary adaptive differential evolution (BADE) algorithm was presented. The BADE algorithm were used to select the appropriate subset of texture features with small dimensions, and probabilistic collaborative representation based classifier (PROCRC) was used to classify images. Result: PROCRC classifier showed good classification result on all datasets. Its average recognition rate was 81.73% and 88.18% respectively. The classification accuracy of insects was significantly improved by feature selection. Its highest rate of improvement was 13.49%. The performance of BADE algorithm were better than other feature selection algorithms. The dimension and classification time of texture dataset selected by the BADE algorithm was significantly reduced. The dimensionality reduction rate was close to 50%, and the time reduction rate was up to 50%. Conclusion: The BADE algorithm proposed in this study can effectively carry out feature selection, which improves the recognition accuracy and saves the recognition time of the model. It is indicated that the method of feature selection for Lepidopteran insect images using swarm intelligence optimization algorithm is feasible. In summary, the method of recognition of Lepidopteran Insects combined with DRLBP and BADE algorithm is proposed in this study, which has important application prospects in rapid and accurate identification of agricultural and forestry insects.

Key words: texture feature, binary adaptive differential evolution, feature selection, classifier

CLC Number: