FPN: Feature Pyramid Network (2016)
In 2016, Tsung-Yi Lin et al. published a paper on Feature Pyramid Network (FPN). The team includes Ross Girshick and Kaiming He, well-known for the work of Faster R-CNN. They developed FPN as a multi-scale feature extractor. Then, they used it with Faster R-CNN, significantly improving detection accuracy. This article explains how FPN works.