International Patent Application (PCT/DE06/00857).
F.-E. Wolter, M. Reuter and N. Peinecke.
Fingerprints - Verfahren zur Charaketerisierung von Objekten, Nov. 2005.
details
This patent describes a method to identify and compare shape of solids, surfaces and images by using the spectrum of the Laplace-Beltrami operator of the given object as a fingerprint. Please see our corresponding publications for a detailed description of the properties and the numerical computation of these spectra for the different kinds of objects. Possible applications like "Copyright protection", "Database retrieval", "Shape Matching" and "Quality Assessment" are described, making use of the fact that the spectrum is an isometry invariant and therefore completely independent of the objects representation and spatial position. Furthermore it is shown how the spectra can be compared independently of the objects size, if desired. hide |