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3D Shape Histograms for Similarity Search and Classification in Spatial Databases. Mihael Ankerst,Ga... - page 8 / 44

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Invariance Properties

Similarity models need to incorporate invariance against translation, rotation, scaling etc.

Most of the methods include a preprocessing step such as rotation of objects to a normalized orientation, translation of center of mass to origin etc.

Robustness against errors is not considered in most of these models

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