Affine invariants of convex polygons

Authors:
J. Flusser
Affiliations:
Inst. of Inf. Theor. & Autom., Acad. of Sci. of the Czech Republic, Prague
Venue:
IEEE Transactions on Image Processing
Year:
2002

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Abstract

In this correspondence, we prove that the affine invariants, for image registration and object recognition, proposed recently by Yang and Cohen (see ibid., vol.8, no.7, p.934-46, July 1999) are algebraically dependent. We show how to select an independent and complete set of the invariants. The use of this new set leads to a significant reduction of the computing complexity without decreasing the discrimination power.