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http://dx.doi.org/10.3745/KIPSTB.2005.12B.4.443

Video Fingerprinting System through Zero-based Code Modulation Technique  

Choi Sun Young (LG 전자 Digital TV 연구소)
Lee Hae-Yeoun (한국과학기술원 전산학과)
Kang In Koo (한국과학기술원 전산학과)
Lee Heung-Kyu (한국과학기술원 전산학과)
Publication Information
The KIPS Transactions:PartB / v.12B, no.4, 2005 , pp. 443-450 More about this Journal
Abstract
Digital fingerprinting is a contents-protection technique, where customer information is inserted into digital contents. Fingerprinted contents undergo various attacks. Especially, attackers can remove easily the inserted fingerprint by collusion attacks, because digital fingerprinting inserts slightly different codes according to the customers. Among collusion attacks, averaging attack is a simple, fast, and efficient attack. In this paper, we propose a video fingerprinting system that is robust to the averaging attack. In order to achieve code efficiency and robustness against the averaging attack, we adopt anti-collusion code (fingerprint code) from GD-PBIBD theory. When the number of users is increased, the size of fingerprint code also grows. Thus, this paper addresses a zero-based code modulation technique to embed and detect this fingerprint code efficiently. We implemented a blind video fingerprinting system based on our proposed technique and performed experiments on various colluding cases. Based on the results, we could detect most of colluders. In the worst case, our scheme could trace at least one colluder successfully.
Keywords
Digital Fingerprinting; Anti-collusion Code; Collusion Attack;
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