Correlation based rotation-invariant corner detector
Javier Mazzaferri, Silvia A. Ledesma, Niklaus Ursus Wetter, Jaime Frejlich · AIP conference proceedings · 2008
In this work we introduce a new approach for corner extraction. The method that allows the corner extraction with rotation invariance is composed by a spiral phase function and a binary amplitude. The designed function can be easily implemented as a filter for a Vander Lugt‐like optical correlator. A final image obtained with the detector presents intensity peaks in each corner location. Numerical simulation has been performed on a set of synthetic scenes, modulated either in amplitude or phase. Results that show the very good performance of the method are shown.