Skip to main content
Article thumbnail
Location of Repository

Combining Multiresolution Shape Descriptors for 3D Model Retrieval

By Ryuatrou Ohbuchi and Yushin Hata


In this paper, we propose and evaluate a systematic approach for improving performance of 3D model retrieval by combining multiple shape descriptors. We explored two approaches for generating multiple, mutually independent, shape descriptors; (1) application of a (single-resolution) shape descriptor on a set of multiresolution shape models generated from a query 3D shape model, and (2) application of multiple, heterogeneous shape descriptors on the query 3D shape model. The shape descriptors are integrated via the linear combination of the distance values they produce, using either fixed or adaptive weights. Our experiment showed that both multiresolution and heterogeneous sets of shape descriptors are effective in improving retrieval performance. For example, by using the multiresolution approach, the R-precision of the SPRH shape descriptor by Wahl, et al, improved by 8%, from 29 % to 37%. A combination of three heterogeneous shape descriptors achieved the R-precision of about 42%; this figure is about 5 % better than the R-precision of 38 % achieved by the Light Field Descriptor by Chen, et al., which is arguably the best single shape descriptor reported to date

Year: 2008
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • (external link)
  • (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.