https://towardsdatascience.com/an-introduction-to-implementing-the-yolo-algorithm-for-multi-object-detection-in-images-99cf240539

YOLO is an extremely fast real time multi object detection algorithm. YOLO stands for “You Only Look Once”. This is the link to the original paper : https://pjreddie.com/media/files/papers/YOLOv3.pdf.

The algorithm applies a neural network to an entire image. The network divides the image into an S x S grid and comes up with bounding boxes, which are boxes drawn around images and predicted probabilities for each of these regions.