Results 31 to 40 of about 3,054 (120)

A Secure and Robust Object-Based Video Authentication System

open access: yesEURASIP Journal on Advances in Signal Processing, 2004
An object-based video authentication system, which combines watermarking, error correction coding (ECC), and digital signature techniques, is presented for protecting the authenticity between video objects and their associated backgrounds.
He Dajun, Sun Qibin, Tian Qi
doaj   +1 more source

Exploring the use of new data assimilation technologies to map groundwater quality vulnerability in a large alluvial aquifer

open access: yesFrontiers in Earth Science
Integrity of simulator-based Bayesian analysis requires adequate representation of prior parameter probabilities, and quantification and reduction of posterior predictive uncertainties through history-matching.
Wes Kitlasten   +2 more
doaj   +1 more source

Groundwater impact of open cut coal mine and an assessment methodology: A case study in NSW

open access: yesInternational Journal of Mining Science and Technology, 2017
Large scale open cut coal mining operations have significant impacts to groundwater in surrounding areas in both active and post-mining phases. The prediction of water inflows into a surface mine excavation is one of the many components involved in mine ...
Liang Zhao, Ting Ren, Ningbo Wang
doaj   +1 more source

Compressive Sampling with Multiple Bit Spread Spectrum-Based Data Hiding

open access: yesApplied Sciences, 2020
We propose a novel data hiding method in an audio host with a compressive sampling technique. An over-complete dictionary represents a group of watermarks.
Gelar Budiman   +2 more
doaj   +1 more source

Imprecise Reversible Dual Watermarking Scheme

open access: yesJournal of Advances in Information Technology, 2013
Most of the Buyer Seller Watermarking (BSW) Protocol found in literature utilize dual watermarking system for copy protection, copyright protection, and piracy tracking purpose.
Neelesh Mehra, Madhu Shandilya
doaj   +1 more source

Asymmetric Watermarking Scheme Based on Correlation Testing

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2007
Asymmetric watermarking is the second generation of watermarking scheme which uses different keys for embedding and detecting watermark. Key for embedding is private or secret, but key for detecting can be available publicly and everyone who has the key ...
Rinaldi Munir   +3 more
doaj   +1 more source

Spatial averaging implied in aquifer test interpretation: The meaning of estimated hydraulic properties

open access: yesFrontiers in Earth Science, 2023
Processing of aquifer test drawdowns to obtain estimates of transmissivity, and sometimes storativity, is an integral part of hydrogeological site investigations.
Neil Manewell, John Doherty, Phil Hayes
doaj   +1 more source

Fragile Watermarking in the Pressure Signal of Online Signatures for Integrity Checking

open access: yesIEEE Access
Online signature templates are increasingly stored, transmitted, and processed digitally, which raises integrity and provenance concerns. This paper presents a fragile watermarking strategy for online handwritten signatures that embeds a short payload in
Marcos Faundez-Zanuy   +2 more
doaj   +1 more source

A Watermark-Based In-Situ Access Control Model for Image Big Data

open access: yesFuture Internet, 2018
When large images are used for big data analysis, they impose new challenges in protecting image privacy. For example, a geographic image may consist of several sensitive areas or layers.
Jinyi Guo, Wei Ren, Yi Ren, Tianqing Zhu
doaj   +1 more source

Watermarking Algorithms for 3D NURBS Graphic Data

open access: yesEURASIP Journal on Advances in Signal Processing, 2004
Two watermarking algorithms for 3D nonuniform rational B-spline (NURBS) graphic data are proposed: one is appropriate for the steganography, and the other for watermarking.
Jae Jun Lee, Nam Ik Cho, Sang Uk Lee
doaj   +1 more source

Home - About - Disclaimer - Privacy