Fast R-CNN (Ross Girshick): Fast Region-based Convolutional Networks for object detection
Faster R-CNN (Ross Girshick): Towards Real-Time Object Detection with Region Proposal Networks
FCOS: Fully Convolutional One-Stage Object Detection
Mask RCNN (Matterport implementation): for Object Detection and Segmentation
Microsoft: Best Practices for Computer Vision
MMDetection: an open source object detection toolbox based on PyTorch. The training speed is faster than or comparable to other codebases.
ResNeXt: Aggregated Residual Transformations for Deep Neural Networks
YOLO: Real-Time Object Detection