3D Orthogonal Spline Moments and 3D Model Retrieval

3D orthogonal spline moments are defined,and used for 3D model retrieval.As a kind of orthogonal polynomials system,orthogonal spline function has many good properties such as orthogonality and locality.So orthogonal spline moments can adequately express the local property of model.Extensive experiments show that the 3D orthogonal spline moments are of higher discriminating power.