Title
Blind 3D-Printing Watermarking Using Moment Alignment and Surface Norm Distribution
Abstract
The recent development of 3D printing technology has brought concerns about its potential misuse, such as in copyright infringement, and crimes. Although there have been many studies on blind 3D mesh watermarking for the copyright protection of digital objects, methods applicable to 3D printed objects are rare. In this paper, we propose a novel blind watermarking algorithm for 3D printed objects with applications for copyright protection, traitor tracing, object identification, and crime investigation. Our method allows us to embed a few bits of data into a 3D-printed object, and retrieve it by 3D scanning without requiring any information about the original mesh. The payload is embedded on the object's surface by slightly modifying the distribution of surface norms, that is, the distance between the surface, and the center of gravity. It is robust to resampling and can work with any 3D printer, and scanner technology. In addition, our method increases the capacity, and resistance by subdividing the mesh into a set of bins, and spreading the data over the entire surface to negate the effect of local printing artifacts. The method's novelties include extending the vertex norm histogram to a continuous surface, and the use of 3D moments to synchronize a watermark signal in a 3D-printing context. In the experiments, our method was evaluated using a public dataset against center, orientation, minimum, and maximum norm misalignments; a printing simulation; and actual print/scan experiments using a standard 3D printer, and scanner.
Year
DOI
Venue
2021
10.1109/TMM.2020.3025660
IEEE TRANSACTIONS ON MULTIMEDIA
Keywords
DocType
Volume
Watermarking, Three-dimensional displays, Printers, Three-dimensional printing, Robustness, Histograms, 3D moments, 3D printing, 3D scanning, blind watermarking, surface norms
Journal
23
ISSN
Citations 
PageRank 
1520-9210
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Arnaud Delmotte100.34
Kenichiro Tanaka2106.30
Hiroyuki Kubo31110.03
Takuya Funatomi47424.62
Yasuhiro Mukaigawa547853.31