ISR News Story
Curve-Based Data Hiding for Protecting Map Document (ISR IP)
ISR intellectual property available to license
Inventors: Min Wu, Hongmei Gou
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.
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June 22, 2007