tiny YOLOv2 implimentation on iOS. The basic convolution operation derive from Metal. The model size is 61M, speed on iphone 6s plus is about 130ms per frame.
If you want to know the detail of YOLO, you can reference the original paper: YOLO9000: Better, Faster, Stronger.
If you can read Chinese, u can reference http://blog.csdn.net/computerme/article/details/78948219
Xcode 9.2
iOS 10.0+
