PT Journal
AU Debora Gil
   Petia Radeva
TI Inhibition of false landmarks
SO Pattern Recognition Letters
JI PRL
PY 2006
BP 1022
EP 1030
VL 27
IS 9
DI 10.1016/j.patrec.2005.11.018
AB Corners and junctions are landmarks characterized by the lack of differentiability in the unit tangent to the image level curve. Detectors based on differential operators are not, by their own definition, the best posed as they require a higher degree of differentiability to yield a reliable response. We argue that a corner detector should be based on the degree of continuity of the tangent vector to the image level sets, work on the image domain and need no assumptions on neither the image local structure nor the particular geometry of the corner/junction. An operator measuring the degree of differentiability of the projection matrix on the image gradient fulfills the above requirements. Because using smoothing kernels leads to corner misplacement, we suggest an alternative fake response remover based on the receptive field inhibition of spurious details. The combination of both orientation discontinuity detection and noise inhibition produce our inhibition orientation energy (IOE) landmark locator.
PI New York, NY, USA
ER