Modified video watermarking scheme using audio silence deletion
Maha Charfeddine, Eya Mezghani, Chokri Ben Amar · International Symposium ELMAR · 2013
Most of classic video watermarking techniques operate only on the visual flow to embed the watermark. That's why, in this work, we propose to improve those schemes and to enhance the embedding capacity by using also the sound stream to bury the watermark. So, in this paper, we focus on the audio flow and we present a modified audio watermarking technique robust to MP3 compression and adapted to be applied to the sound stream of digital video exposed to MPEG compression. In fact, we exploit a classic audio watermarking technique by applying it to digital video. However, the extraction of the embedded watermark became impossible after MPEG compression since the video compression contributes in some cases to add a shifting in the audio stream. That's why, we propose to add silence deletion blocks into the classic watermarking scheme in order to guarantee the robustness of the watermarked video to MPEG compression. So, we present in this paper the modified audio watermarking scheme applied to digital video and we expose the corresponding results.