Region Based Convolutional Neural Networks: Difference between revisions

Revision as of 22:27, 17 September 2024

Revision as of 08:06, 20 September 2024

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=== Selective search ===

Given an image (or an image-like feature map), '''selective search''' (also called Hierarchical Grouping) first segments the image by the algorithm in (Felzenszwalb and Huttenlocher, 2004),<ref>{{Cite journal |last=Felzenszwalb |first=Pedro F. |last2=Huttenlocher |first2=Daniel P. |date=2004-09-01 |title=Efficient Graph-Based Image Segmentation |url=https://link.springer.com/article/10.1023/B:VISI.0000022288.19776.77 |journal=International Journal of Computer Vision |language=en |volume=59 |issue=2 |pages=167–181 |doi=10.1023/B:VISI.0000022288.19776.77 |issn=1573-1405}}</ref> then performs the following:<ref name=":1" />
<syntaxhighlightpre>
Input: (colour) image

Output: Set of object ___location hypotheses L

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S = S ∪ Sₜ

R = R ∪ rₜ

Extract object ___location boxes L from all regions in R
</syntaxhighlightpre>

=== R-CNN ===