This document summarizes research on object detection techniques using deep learning. It discusses using the YOLO algorithm to identify objects in images using a single neural network that predicts bounding boxes and class probabilities. The document reviews prior research on algorithms like R-CNN, Fast R-CNN, Faster R-CNN, Mask R-CNN and RetinaNet. It then describes the YOLO loss function and methodology for finding bounding boxes of objects in an image. The document concludes that YOLO is well-suited for real-time object detection applications due to its advantages over other algorithms.