Abstract
With increasing design reuse in modern products, accurate and efficient 3D CAD model retrieval methods are required. To improve retrieval capability, a 3D shape comparison method is often utilized. In this method, the shapes of 3D CAD models in a database are compared with the shape given by a user. Meanwhile, for rapid generation of query models, a freehand sketch-based modeling method is adopted for retrieval systems. This method creates a low-level-of-detail (low-LOD) 3D CAD model with abbreviated exterior shapes. On the other hand, the target 3D CAD model in the database is a high-LOD 3D CAD model including detailed shapes of a product or components of a product. Considering different LODs of query and target models, we propose a new 3D CAD model retrieval method consisting of a 3D CAD model simplification system and a shape distribution-based shape comparison engine that compares multi-resolution models in a database to improve retrieval accuracy using a query model with simple shape. Experiment is conducted on 64 LOD models generated from 8 test cases and 8 query models generated by freehand sketch-based modelling method. Result shows a 200 % improvement on retrieval success rate for lower LOD models (100 %) compared with source models (50 %). Moreover, the proposed method has an advantage on efficiency, due to the simple calculation method and short computation time.
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07 September 2017
An erratum to this article has been published.
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Acknowledgment
This research was supported by the Civil-Military Technology (Project ID: 14-CM-MC-15), the Industrial Core Technology Development Program (Project ID: 10048341) funded by the Ministry of Trade, Industry and Energy, and the Plant Research Program (Project ID: 14IFIP-B091004-01) funded by the Ministry of Land, Infrastructure and Transport of the Korean government. The authors gratefully acknowledge this support.
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An erratum to this article is available at https://doi.org/10.1007/s11042-017-5147-2.
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Kim, H., Cha, M. & Mun, D. Shape distribution-based retrieval of 3D CAD models at different levels of detail. Multimed Tools Appl 76, 15867–15884 (2017). https://doi.org/10.1007/s11042-016-3881-5
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DOI: https://doi.org/10.1007/s11042-016-3881-5