Methods to Reduce the Rate of Decoding Errors for Digital Watermarking Using an Error Correcting Code

摘要

Two methods using an error correcting code to reduce the rate of decoding errors for digital watermarking are proposed. These methods are an improved version of the method proposed at ISITA2010 by the authors. These methods are based on two concepts: employment of two different decoding algorithms, and restriction of the weight of codewords as embedded information. The effectiveness of the proposed methods are evaluated by through simulations and experiments.