Zero Watermarking for the TIN DEM Data Based on the Edge Length

How to keep the fidelity of the digital elevation model (DEM) data is a crucial problem in the current watermarking research, as the watermarked DEM data need to preserve their accuracy. We proposed a zero watermarking method for the triangulated irregular network (TIN) DEM data. It takes full advan...

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Bibliographic Details
Main Authors: Qifei Zhou, Changqing Zhu, Na Ren
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:ISPRS International Journal of Geo-Information
Subjects:
DEM
TIN
Online Access:https://www.mdpi.com/2220-9964/10/8/559