Sampling effect of figure features based on moments
В. В. Старовойтов, Svetlana Tchetverenko · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1998
A continuous figure may be represented by a binary image on a discrete grid. Continuous figures possess some invariant properties with respect to translation, rotation and symmetry. In the paper we evaluate maximal and relative errors of several invariant features based on central moments calculated for various geometric figures in 1D and 2D digital spaces.