Information hiding through variance of the parametric orientation underlying a B-rep face

Csaba Salamon, Jonathan Corney, James Ritchie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


Watermarking technologies have been proposed for many different types of digital media. However, to this date, no viable watermarking techniques have yet emerged for the high value B-rep (i.e. Boundary Representation) models used in 3D mechanical CAD systems. In this paper, the authors propose a new approach (PO-Watermarking) that subtly changes a model's geometric representation to incorporate a "transparent" signature. This scheme enables software applications to create fragile, or robust watermarks without changing the size of the file, or shape of the CAD model. Also discussed is the amount of information the proposed method could transparently embed into a B-rep model. The results presented demonstrate the embedding and retrieval of text strings and investigate the robustness of the approach after a variety of transformation and modifications have been carried out on the data. © 2008 Springer Berlin Heidelberg.

Original languageEnglish
Title of host publicationInformation Hiding - 10th International Workshop, IH 2008, Revised Selected Papers
Number of pages15
Volume5284 LNCS
Publication statusPublished - 2008
Event10th International Workshop on Information Hiding - Santa Barbara, CA, United States
Duration: 19 May 200821 May 2008

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5284 LNCS
ISSN (Print)0302-9743


Conference10th International Workshop on Information Hiding
Abbreviated title IH 2008
Country/TerritoryUnited States
CitySanta Barbara, CA


  • Boundary representation (B-rep)
  • Digital watermarking
  • Mechanical CAD
  • Parametric orientation
  • Tweaking


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