Upsilon Invariants: A Uniform Set Of Moment Invariants
V. N. Dvornychenko · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1984
A set of uniform magnitude, minimal-order moment invariants is introduced. The relationship to the Hu and other invariants is explained. It is shown how the present invariants circumvent some of the more serious limitations of the Hu set. For example, it is shown that the Hu invariants are algebraically dependent and how this arises. Graphic representations in the form of hidden-line surfaces in feature space are presented. A proposed basis for "aspect-independents" is outlined.