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Curve-Based Data Hiding for Protecting Map Document (ISR IP)

ISR intellectual property available to license

Inventors: Min Wu, Hongmei Gou

Description
Curves, or non-linear shapes, are major components appearing in maps, drawings, signatures and other documents. A huge amount of such documents are being brought to the digital domain owing to the popularity of scanning devices and pen-based devices (such as the TabletPC). Hiding digital watermarks or other secondary data in curves can facilitate digital rights management of important documents in government, intelligence and commercial operations. For example, trace-and-track capabilities can be provided through embedding a unique ID, referred to as a digital fingerprint, to each copy of a document before distributing to users to deter the unauthorized leak of classified documents outside an allowed group.

Inventors at the University of Maryland have developed a new data-hiding algorithm for curves by parameterizing a curve using the B-spline model and adding spread spectrum sequences in curve parameters. They have demonstrated the feasibility of proposed algorithm in collusion-resistant fingerprinting applications for writings/drawings from pen-based input as well as topographic maps.

For more information
If you would like to license this intellectual property, have questions, would like to contact the inventors, or need more information, contact ISR External Relations Director Jeff Coriale at coriale@umd.edu or 301.405.6604.

Find more ISR IP
You can go to our main IP search page to search by research category or faculty name. Or view the entire list of available IP on our complete IP listing page.

ISR-IP-Wu ISR-IP-security

Related Articles:
Confidentiality Preserving Rank-Ordered Search (ISR IP)
Component Forensics of Visual Sensors and Devices (ISR IP)
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Effective and Efficient Collusion-Resistant Fingerprinting for Multimedia (ISR IP)
Methods for Estimating the Intrinsic Pattern of Fingerprint Scanners and Using it in Biometric Authentication and for Cryptographic Key Generation (ISR IP)
Method for Efficient Source Authentication for Multicast Communications in Hybrid Satellite/Wireless Networks (ISR IP)
Method for Performance-Aware Security of Unicast Communications in Hybrid Satellite Networks (ISR IP)
Method and Implementation for Key Generation and Replacement Using Markov Models (ISR IP)
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Detecting DDoS Attacks in Stub Domains (ISR IP)

June 22, 2007


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For more information, contact ISR External Relations Director
Jeff Coriale at coriale@umd.edu or 301.405.6604.

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