Partial 3D Object Retrieval combining Local Shape Descriptors with Global Fisher Vectors

Michalis A. Savelonas, Ioannis Pratikakis & Konstantinos Sfikas
This work introduces a partial 3D object retrieval method, applicable on both meshes and point clouds, which is based on a hybrid shape matching scheme combining local shape descriptors with global Fisher vectors. The differential fast point feature histogram (dFPFH) is defined so as to extend the well-known FPFH descriptor in order to capture local geometry transitions. Local shape similarity is quantified by averaging the minimum weighted distances associated with pairs of dFPFH values calculated...
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