An Approximate Algorithm of Legendre Moments
Cao Zhu-jun · Journal of Shanghai University of Engineering Science · 2004
The theory of moments is widely used in graphics analysis and graphics retrieval in multimedia database.However,because of difficulty of calculation,it can not be used directly.An approximate algorithm is provided in this paper.First,calculate moments on cut-off lines approximately by the attributes of Legendre polynomial,and then get one-dimension moments,finally,get two-dimension moments.Thus,the rapidity of calculation is improved obviously.