Updated with suggested changes about RPN backbone
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- "Region Proposal Network like other region proposal algorithms inputs an image and returns regions of interest that contain objects. An RPN also returns an objectness score which measures how likely the region is supposed to have an object vs. a background. [1] RPN inputs an image and passes it through the backbone network the weights of which are shared with the larger detector network using the same backbone. The last shared layer of the backbone provides a feature map of the image. "
+ "Region Proposal Network like other region proposal algorithms inputs an image and returns regions of interest that contain objects. An RPN also returns an objectness score which measures how likely the region is supposed to have an object vs. a background. [1] In Faster R-CNN, the RPN and the detect network share the same backbone. The last shared layer of the backbone provides a feature map of the image which is used by the RPN to propose regions."
]
},
{
