Real-time video watermarking system on the compressed domain for high-definition video contents: Practical issues |
| |
Authors: | Min-Jeong LeeAuthor VitaeDong-Hyuck ImAuthor Vitae Hae-Yeoun LeeAuthor VitaeKyung-Su KimAuthor Vitae Heung-Kyu LeeAuthor Vitae |
| |
Affiliation: | a Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology, Guseong-dong, Yuseong-gu, Daejeon, Republic of Korea b School of Computer and Software Engineering, Kumoh National Institute of Technology, 1, Yangho-dong, Gumi, Gyeongbuk, Republic of Korea |
| |
Abstract: | Everyday, we encounter high-quality multimedia contents from HDTV broadcasting, DVD, and high-speed Internet services. These contents are, unhappily, processed and distributed without protection. This paper proposes a practical video watermarking technique on the compressed domain that is real-time and robust against video processing attacks. In particular, we focus on video processing that is commonly used in practice such as downscaling resolution, framerate changing, and transcoding. Most previous watermarking algorithms are unable to survive when these processings are strong or composite. We extract low frequency coefficients of frames in fast by partly decoding videos and apply a quantization index modulation scheme to embed and detect the watermark. On an Intel architecture computer, we implement a prototype system and measure performance against video processing attacks frequently occur in the real world. Simulation results show that our video watermarking system satisfies real-time requirements and is robust to protect the copyright of HD video contents. |
| |
Keywords: | Real-time video watermarking Robust video watermarking Practical video watermarking Quantization index modulation Copyright protection |
本文献已被 ScienceDirect 等数据库收录! |
|