OpenCV C++ Tutorial And Examples: Opencv C++ Code with Example for Object Detection using SURF Detector
GitHub - joaopfg/SIFT-algorithm-for-feature-detection: A C++ implementation of SIFT algorithm for feature detection made for course INF574 at École Polytechnique
GitHub - davidstutz/vedaldi2006-siftpp: Fork of SIFT++, a lightweight C++ implementation of the SIFT detector and descriptor.
![Illustration of the sift-up operation. (a) Before sift-up; (b) After... | Download Scientific Diagram Illustration of the sift-up operation. (a) Before sift-up; (b) After... | Download Scientific Diagram](https://www.researchgate.net/publication/221083118/figure/fig3/AS:671512688332809@1537112509524/Illustration-of-the-sift-up-operation-a-Before-sift-up-b-After-sift-up-The-numbers.png)