NDLI: Progressive compression invariant semi-fragile watermarks for 3d meshes

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Progressive compression invariant semi-fragile watermarks for 3d meshes

Content Provider	ACM Digital Library
Author	Agarwal, Parag Prabhakaran, Balakrishnan Maheshwari, Puneet
Abstract	In this paper, we propose a scheme to enhance the robustness of authentication based watermarking algorithms for 3D models (3D meshes) against compression and decompression. We target different compression techniques such as Compressed Progressive Meshes (CPM) [9], Progressive Forest Split (PFS) compression [11], and Progressive Mesh (PM) [7]. The idea behind the algorithm is to compute those set of vertices that are never used for compression. We have three sets of such vertices that are never used for compression by these techniques. The first set of vertices includes the boundary vertices that are critical for deciding the shape of the 3D model. The second set includes the neighboring vertices to the split vertex. The third set of vertices comprise of edges that do not form simple triangle. After applying the compression algorithms for 3D models, we apply the watermarking algorithm that uses geometric information only. We then watermark the vertices that are obtained from the above three sets. These watermarks are shown to be preserved even after repeated decompression and compression of 3D models. Due to the generic nature of the algorithm, we can apply the above idea to any watermarking algorithm used for other applications such as copyright protection as well.
Starting Page	245
Ending Page	250
Page Count	6
File Format	PDF
ISBN	9781595938572
DOI	10.1145/1288869.1288904
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2007-09-20
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Compression Authentication Watermarking
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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