Zero-Based Code Modulation Technique for Digital Video Fingerprinting

Abstract

Digital fingerprinting is a technique to protect digital contents from illegal reproduction and redistribution by marking unique information for indi- vidual user. A powerful but simple attack to diminish fingerprint signals is av- eraging. While several fingerprinting schemes against collusion attacks were proposed, they often do not fully account for multimedia data. In this paper, we propose a zero-based code modulation method which fully reflects marking as- sumption concept to embedding and detection of signals and anti-collusion code working mechanism as well. By manipulating 0-bit information of binary codes, detection accuracy and code separation under averaging attacks were enhanced. To demonstrate our method, we used an averaging-resilient finger- print code based on GD-PBIBD theory and applied it video fingerprinting sys- tems. Through the experimental results, we convince our method improves av- eraging resiliency of fingerprinting systems.