Patents by Inventor Junfei Yi

Junfei Yi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250299315
    Abstract: Disclosed in the present invention is a neural network-based defect detection method for gluing quality on aircraft skin. The method includes: data acquisition: taking photos of aircraft skin by using a camera to acquire image data; preprocessing the acquired image data; annotating the data by using annotation software to acquire a data set for network training; establishing a defect detection network model based on feature erasure and boundary refinement, where the defect detection network model includes a feature extraction network, a semantic-guided feature erasure module, a multi-scale feature fusion network, and a defect prediction network based on boundary refinement, which are sequentially connected, the data set is used for training the network model, and trained model parameters are saved; and detecting a directly collected skin gluing image by using the trained network model and outputting detection results.
    Type: Application
    Filed: June 9, 2025
    Publication date: September 25, 2025
    Applicant: Hunan University
    Inventors: Jianxu MAO, Junfei YI, Yaonan WANG, Hui ZHANG, Kai ZENG, Ziming TAO, He XIE, Caiping LIU, Qing ZHU, Min LIU, Xian'en ZHOU
  • Patent number: 12423796
    Abstract: Disclosed in the present invention is a neural network-based defect detection method for gluing quality on aircraft skin. The method includes: data acquisition: taking photos of aircraft skin by using a camera to acquire image data; preprocessing the acquired image data; annotating the data by using annotation software to acquire a data set for network training; establishing a defect detection network model based on feature erasure and boundary refinement, where the defect detection network model includes a feature extraction network, a semantic-guided feature erasure module, a multi-scale feature fusion network, and a defect prediction network based on boundary refinement, which are sequentially connected, the data set is used for training the network model, and trained model parameters are saved; and detecting a directly collected skin gluing image by using the trained network model and outputting detection results.
    Type: Grant
    Filed: June 9, 2025
    Date of Patent: September 23, 2025
    Assignee: Hunan University
    Inventors: Jianxu Mao, Junfei Yi, Yaonan Wang, Hui Zhang, Kai Zeng, Ziming Tao, He Xie, Caiping Liu, Qing Zhu, Min Liu, Xian'en Zhou