Method and system for detecting foreign matters conveyed by conveying belt

• Main Authors: YIN YANFANG, ZHU QIGANG, HAN HONGYONG, LI CHENGJIANG, REN GUOQIANG
• Format: Patent
• Language: Chinese; English
• Published: 06.05.2022
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The invention provides a transmission band transmission foreign matter detection method and system, and the method comprises the steps: obtaining a plurality of images on different transmission bands, carrying out the data preprocessing, and dividing the images into a training set and a test set; establishing a FastYolov3 model, inputting the images of the training set into the FastYolov3 model for model training, randomly selecting at least four images from different transmission bands from the images of the training set, processing the at least four images, and splicing the processed images into a new image to serve as a training sample for target image detection; a deconvolution network is added in a convolution layer for up-sampling, feature maps of training samples are obtained, four feature maps of the training samples are trained through at least 12 prior frames, a cross entropy adjustment factor and a balance factor are introduced, and the cross entropy of negative sample confidence in a loss function