Understanding region proposals
Imagine a hypothetical scenario where the image of interest contains a person and sky in the background. Let’s assume there is little change in the pixel intensity of the background (sky) and a considerable change in the pixel intensity of the foreground (the person).
Just from the preceding description itself, we can conclude that there are two primary regions here – the person and the sky. Furthermore, within the region of the image of a person, the pixels corresponding to hair will have a different intensity to the pixels corresponding to the face, establishing that there can be multiple sub-regions within a region.
Region proposal is a technique that helps identify islands of regions where the pixels are similar to one another. Generating a region proposal comes in handy for object detection where we must identify the locations of objects present in an image. Additionally, given that a region proposal generates a proposal for...