Translator Disclaimer
27 January 2010 Audio annotation watermarking with robustness against DA/AD conversion
Author Affiliations +
Proceedings Volume 7541, Media Forensics and Security II; 75410W (2010)
Event: IS&T/SPIE Electronic Imaging, 2010, San Jose, California, United States
In the paper we present a watermarking scheme developed to meet the specific requirements of audio annotation watermarking robust against DA/AD conversion (watermark detection after playback by loudspeaker and recording with a microphone). Additionally the described approach tries to achieve a comparably low detection complexity, so it could be embedded in the near future in low-end devices (e.g. mobile phones or other portable devices). We assume in the field of annotation watermarking that there is no specific motivation for attackers to the developed scheme. The basic idea for the watermark generation and embedding scheme is to combine traditional frequency domain spread spectrum watermarking with psychoacoustic modeling to guarantee transparency and alphabet substitution to improve the robustness. The synchronization and extraction scheme is designed to be much less computational complex than the embedder. The performance of the scheme is evaluated in the aspects of transparency, robustness, complexity and capacity. The tests reveals that 44% out of 375 tested audio files pass the simulation test for robustness, while the most appropriate category shows even 100% robustness. Additionally the introduced prototype shows an averge transparency of -1.69 in SDG, while at the same time having a capacity satisfactory to the chosen application scenario.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kun Qian, Christian Kraetzer, Michael Biermann, and Jana Dittmann "Audio annotation watermarking with robustness against DA/AD conversion", Proc. SPIE 7541, Media Forensics and Security II, 75410W (27 January 2010);

Back to Top