Here are a few projects that are built on detectron2. They are examples of how to use detectron2 as a library, to make your projects more maintainable.

Note that these are research projects, and therefore may not have the same level of support or stability of detectron2.

• DensePose: Dense Human Pose Estimation In The Wild
• Scale-Aware Trident Networks for Object Detection
• TensorMask: A Foundation for Dense Object Segmentation
• Mesh R-CNN
• PointRend: Image Segmentation as Rendering
• Momentum Contrast for Unsupervised Visual Representation Learning

External projects in the community that use detectron2:

• VoVNet backbones.
• AdelaiDet, a detection toolbox from the Universtiy of Adelaide.
• CenterMask : Real-Time Anchor-Free Instance Segmentation