Full Content is available to subscribers

Subscribe/Learn More  >

Topology Preserving Digitization of Physical Prototypes Using Deformable Subdivision Models

[+] Author Affiliations
Erhan Batuhan Arisoy, Levent Burak Kara

Carnegie Mellon University, Pittsburgh, PA

Paper No. DETC2014-34390, pp. V02BT03A015; 11 pages
  • ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2B: 40th Design Automation Conference
  • Buffalo, New York, USA, August 17–20, 2014
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-4632-2
  • Copyright © 2014 by ASME


Physical prototyping is an important stage of product design where designers have a chance to physically evaluate and alter digitally created surfaces. In these scenarios, designers generate a digital model, manufacture and alter the prototype as needed, and redigitize the prototype through scanning. Despite the variety of reverse engineering tools, redigitizing the prototypes into forms amenable to further digital editing remains a challenge. This is because current digitization methods cannot take advantage of the key elements of the original digital model such as the wireframe topology and surface flows. This paper presents a new reverse engineering method that augments conventional digitization with the knowledge of the original digital model’s curve topology to enhance iterative shape design activities. Our algorithm takes as input a curve network topology forming a subdivision control cage and a 3D scan of the physically modified prototype. To facilitate the digital capture of the physical modifications, our algorithm performs a series of registration, correspondence and deformation calculations to compute the new configuration of the initial control cage. The key advantage of the proposed technique is the preservation of the edge flows and initial topology while transferring surface modifications from prototypes. Our studies show that the proposed technique can be particularly useful for bridging the gap between physical and digital modeling in the early stages of product design.

Copyright © 2014 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In