An appearance quality classification method for Auricularia auricula based on deep learning.

Journal: Scientific reports
Published Date:

Abstract

The intelligent appearance quality classification method for Auricularia auricula is of great significance to promote this industry. This paper proposes an appearance quality classification method for Auricularia auricula based on the improved Faster Region-based Convolutional Neural Networks (improved Faster RCNN) framework. The original Faster RCNN is improved by establishing a multiscale feature fusion detection model to improve the accuracy and real-time performance of the model. The multiscale feature fusion detection model makes full use of shallow feature information to complete target detection. It fuses shallow features with rich detailed information with deep features rich in strong semantic information. Since the fusion algorithm directly uses the existing information of the feature extraction network, there is no additional calculation. The fused features contain more original detailed feature information. Therefore, the improved Faster RCNN can improve the final detection rate without sacrificing speed. By comparing with the original Faster RCNN model, the mean average precision (mAP) of the improved Faster RCNN is increased by 2.13%. The average precision (AP) of the first-level Auricularia auricula is almost unchanged at a high level. The AP of the second-level Auricularia auricula is increased by nearly 5%. And the third-level Auricularia auricula AP is increased by 1%. The improved Faster RCNN improves the frames per second from 6.81 of the original Faster RCNN to 13.5. Meanwhile, the influence of complex environment and image resolution on the Auricularia auricula detection is explored.

Authors

  • Yang Li
    Occupation of Chinese Center for Disease Control and Prevention, Beijing, China.
  • Jiajun Hu
    College of Mechanical Engineering, Jiamusi University, Jiamusi, 154007, China.
  • Haiyun Wu
    College of Engineering and Technology, Tianjin Agricultural University, Tianjin, 300392, China.
  • Yong Wei
    Department of Urology, Affiliated Hospital of Nanjing University of Chinese Medicine, 155 Hanzhong Road, Nanjing, Jiangsu, 210006, China.
  • Huiyong Shan
    College of Engineering and Technology, Tianjin Agricultural University, Tianjin, 300392, China.
  • Xin Song
    State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China.
  • Xiuping Hua
    College of Engineering and Technology, Tianjin Agricultural University, Tianjin, 300392, China.
  • Wei Xu
    College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471023 China.
  • Yongcheng Jiang
    College of Engineering and Technology, Tianjin Agricultural University, Tianjin, 300392, China. jiangyongcheng@126.com.