Improved YOLOv4 for dangerous goods detection in X-ray inspection combined with atrous convolution and transfer learning

Abstract

The predecessor of China Optics was China Optics and Applied Optics Digest, which was founded in 1985. At that time, it was the only retrieval journal in the field of optics in China. At the end of 2008, China Optics and Applied Optics Digest was renamed