Biorthogonal matrix dirty paper coding for information hiding in still images

In this paper, a new method of dirty paper code design is investigated, namely the biorthogonal matrix. The error probability is analysed for the code design. Since the code has the maximum d min', the robustness of this code is optimal. However, due to the limited availability of the codewords, the performance is restricted. Superior coding and binning methods are derived from the in-depth analysis of the simulation results. Simulation results identify this restriction and solutions are discussed. Comparisons are made with non-orthogonal codes showing the robustness advantage of biorthogonal codes.