In this paper a new feature point detection method for 3D meshes is proposed. This method serves as an important preprocessing step for a number of 3D applications including mesh simplification
3D shape matching
and viewpoint selection. Compared with similar algorithms recently proposed
the proposed method has two advantages: 1) our feature point detection algorithm is based on our new perceptual saliency measure
using the local height
rather than being based on traditional curvature. We assume that the perceptual importance of a given point on a 3D model can be described by the protrusiveness of that point
but not the bend degree. Therefore
we proposed the local height as a new measure for evaluating the perceptual importance of a point. 2) We use Mean Shift
a powerful non-parametric estimator of the density gradient
to analyze the distribution of local heights on a mesh
and to detect feature points on this meshExperimental results showed that our proposed method is able to capture perceptually salient feature points on a 3D method
and the algorithm is stable at different levels of details.