Abstract
The number of non-rigid 3D shapes increases steadily in various areas. It is imperative to develop efficient retrieval system for 3D non-rigid shapes. The wave kernel signature was introduced as an intrinsic local shape descriptor based on the wave function, which represents the average probability of a quantum mechanical particle at a specific location. In this paper, we develop a scale-invariant wave kernel signature normalizing with eigenvalues of the Laplace-Beltrami operator. The proposed descriptor is useful in coping with 3D shapes which have undergone scale transformation. Experimental results on public benchmarks show that our method outperforms the method based on the wave kernel signature for non-rigid 3D shape retrieval.
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