Data Hiding in Curves for Collusion-Resistant Digital Fingerprinting (MA-L1)

Author(s) : Hongmei Gou (University of Maryland, College Park, USA) Min Wu (University of Maryland, College Park, USA)

Abstract : This paper presents a new data hiding method for curves. The proposed algorithm parameterizes a curve using B-spline model and adds a spread spectrum sequence in the coordinates of the B-spline control points. We demonstrate through experiments the robustness of the proposed data hiding algorithm against printing-and-scanning and collusions, and show its feasibility for collusion-resistant fingerprinting of topographic maps as well as writings/drawings from pen-based input devices.

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