VLSI architectures of perceptual based video watermarking for real-time copyright protection
San Jose, CA(2009)
摘要
For effective digital rights management (DRM) of multimedia in the framework of embedded systems, both watermarking and cryptography are necessary. In this paper, we present a watermarking algorithm and VLSI architecture that can insert a broadcaster's logo in video streams in real-time to facilitate copyrighted video broadcasting and internet protocol television (IP-TV). The VLSI architecture, when realized in silicon can be deployed in any multimedia producing appliance to enable DRM. The watermark is inserted in the video stream beforeMPEG-4 compression, resulting in simplified hardware requirements and superior video quality. The watermarking process is performed in the frequency domain. The system is initially prototyped and validated in MATLAB/Simulink and subsequently implemented on an Altera Cyclone-II FPGA. Its maximum throughput is 43 frames/sec at a clock speed of 100 MHz which makes it suitable for real-time digital video broadcasting emerging applications such as IP-TV.
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关键词
watermarking algorithm,real-time digital video broadcasting,superior video quality,watermarking process,vlsi architecture,beforempeg-4 compression,effective digital rights management,video stream,video watermarking,altera cyclone-ii fpga,real-time copyright protection,video broadcasting,embedded system,video quality,video compression,transform coding,very large scale integration,internet protocol,frequency domain,cryptography,digital rights management,watermarking,vlsi,hardware,real time systems,real time,video,digital video broadcasting,embedded systems
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