Visual Vocabulary Signature for 3D Object Retrieval and Partial Matching

Toldo, Roberto; Castellani, Umberto; Fusiello, Andrea

Visual Vocabulary Signature for 3D Object Retrieval and Partial Matching

Files

021-028.pdf (1.06 MB)

Date

2009

Authors

Toldo, Roberto
Castellani, Umberto
Fusiello, Andrea

Publisher

The Eurographics Association

Abstract

In this paper a novel object signature is proposed for 3D object retrieval and partial matching. A part-based representation is obtained by partitioning the objects into subparts and by characterizing each segment with different geometric descriptors. Therefore, a Bag ofWords framework is introduced by clustering properly such descriptors in order to define the so called 3D visual vocabulary. In this fashion, the object signature is defined as a histogram of 3D visual word occurrences. Several examples on the Aim@Shape watertight dataset demonstrate the versatility of the proposed method in matching either 3D objects with articulated shape changes or partially occluded or compound objects. In particular, a comparison with the methods that participated to the Shape Retrieval contest 2007 (SHREC) reports satisfactory results for both object retrieval and partial matching.

        @inproceedings{:10.2312/3DOR/3DOR09/021-028
,
booktitle = {Eurographics 2009 Workshop on 3D Object Retrieval
},
editor = {Michela Spagnuolo and Ioannis Pratikakis and Remco Veltkamp and Theoharis Theoharis
},
title = {{Visual Vocabulary Signature for 3D Object Retrieval and Partial Matching
}},
author = {Toldo, Roberto and 
Castellani, Umberto and 
Fusiello, Andrea
},
year = {2009
},
publisher = {The Eurographics Association
},
ISSN = {1997-0463
},
ISBN = {978-3-905674-16-3
},
DOI = {/10.2312/3DOR/3DOR09/021-028
}
}