On the Effectiveness of Various Techniques of Searching in 3D Mesh Objects in Database

The article compares some algorithm for object comparison, that can be used for searching 3D objects in database. There are tested: basic D2, TH, and EGI algorithms. The algorithms use histograms as descriptors of 3D shape. The techniques were tested using cultural heritage objects and objects from Shape Princeton Benchmark. Additional test use the same object represented with different accuracy. The tests give us conclusions about the restricted usefulness of the algorithms and suggest the important parameters for searching in database.