2) related object detection, for example two review, the Generic Deep Learning for Object Detection: A Survey, https://arxiv.org/abs/1809.02165 , in Advances in Object Detection in Recent The Age of Deep Convolutional Neural Networks, HTTPS: // arxiv.org/pdf/1809.03193.pdf . And a detection model used, including but not limited Faster R-CNN, FPN, Mask R-CNN, R-FCN, SNIP the like;
3) identify fine-grained, fine-grained retrieve, from my personal home page ( http://lamda.nju.edu.cn/weixs/ find relevant literature); another review recommended universal retrieval: Recent Advance in Content-based Retrieval Image: A Literature Survey, https://arxiv.org/abs/1706.06064