Bibliography (7):

1. Mask R-CNN

2. Deep Residual Learning for Image Recognition

3. Microsoft COCO: Common Objects in Context

4. https://scikit-image.org/docs/dev/auto_examples/edges/plot_skeleton.html

5. https://github.com/EthanRosenthal/nannernest

6. Wikipedia Bibliography:

   1. Image segmentation

   2. NP-hardness