Shape description based on fusion of Curvature and Fourier descriptors
Keywords:
Classification, Completeness, Stable descriptor, Curvature, Fourier descriptors, CSSAbstract
In this paper we intend to introduce a shape descriptor for planar closed curves invariants under geometric transformations. The proposed descriptor is a fusion between the curvature and Fourier descriptors. The curvature properties provide an apparently powerful cue to the underlying structure of the curve and captures completely the structure of planar curve. In addition, it is stable and complete. Fourier descriptors are powerful features for the recognition of two-dimensional connected shapes and is supported by the well-developed and well-understood Fourier theory. We used the Fourier descriptors proposed by Ghorbel, this set of invariants is also stable and complete. Experiments are conducted on different datasets such as MPEG-7,Kimia-99, Kimia-216 and our Brachiopods data set presented to illustrate the performance of the proposed descriptor.
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