Accurate corner detection: an analytical study

Consideration is given to a corner model, and its behavior in the scale-space is studied. The authors derive results that clarify the behavior of some well known approaches used to detect corners. In particular, they show that some of the approaches are inadequate for an exact localization of the corner. A novel approach is then proposed in order to correct the displacement effect and detect exactly the corner position. Some promising experimental results obtained on real data are shown