High-capacity reversible watermarking scheme of 2D-vector data

摘要: The application of two-dimensional (2D) vector map faces the security issues copyright protection, which limit usage data in many scenarios. Reversible watermarking is a more feasible solution, aims to restore original after watermark extraction. In this paper, high-capacity reversible scheme 2D-vector proposed based on idea iterative embedding. It groups vertices as units for each polyline and selects highly correlated vertex cover data. Then embedding carried out by iteratively modifying median coordinates selected unit. This can strictly recover with accurate Meanwhile, both higher payload capacity perception invisibility are validated through theoretical analysis comprehensive experiments. experimental results show that suitable applications where high-precision required.