You only look once (YOLO) is a state-of-the-art, real-time object detection system.
https://pjreddie.com/darknet/yolo/
YOLOv4 资源环境配置和测试样例效果
https://www.cnblogs.com/wujianming-110117/p/12791626.html
OpenCV4.4 + YOLOv4 真的可以运行了
https://cloud.tencent.com/developer/article/1668133
YOLOv4 - Neural Networks for Object Detection
https://github.com/AlexeyAB/darknet
https://github.com/Tianxiaomo/pytorch-YOLOv4
YOLOv5 in PyTorch > ONNX > CoreML > iOS
https://github.com/ultralytics/yolov5