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A reversible video watermarking system
ICT
cyber security
smart cities
watermark
advertising
Patent application: PCT/EP2017/057426 / EP17714427.6 / US 16⁄498,370 Priority date: 29/03/2017
This video watermarking technology consists of a robust, imperceptible digital watermarking system that can be used to protect digital media against piracy and tampering. In contrast to many other methods, it survives the latest H.264 digital compression technology.
The strength of this technology is its capacity to work with H.264 video compression technologies, including high-definition audio and video on Blu-ray Discs, internet streaming sources (Vimeo, YouTube, iTunes), website software (Flash Player, Sliverlight), broadcast services, videoconferencing and security systems.
The watermark is practically imperceptible and can be reliably removed (even with a significant loss in signal), while incorporating a high degree of information.
The proposed technology increases transparency, robustness and capacity, which are normally subject to a trade-off when selecting watermark technology. The technology is now being developed as a semi-fragile watermarking system to authenticate video and detect tempering.
In these applications, the attacker aims to alter the medium without the change being detectable. A fragile (or semi-fragile) watermark makes it possible for the attacker to alter the video content without detecting it.
Therefore, this technology enables the detection of tampering and even its location at specific parts of the video.
The system is also capable of withstanding a certain level of compression while maintaining the watermark embedded.
Video Watermarking offers an innovative approach to combat tampering and counterfeiting and provides a good trade-off between capacity, transparency and bit rate, with multiple advantages:
- Total reversibility, since the original content can easily be restored.
- Zero distortion of the multimedia content
- More robustness, as the hidden stream is encrypted using several keys
- Real-time extraction processes, since only decoding procedures are required but not total decompression of the video
- Minimum alteration of the bit rate
- Greater reliability, since the risk of losing the watermark due to compression is avoided
Media analytics:
- Audience measurements and broadcasting monitoring
- Campaign effectiveness measurement
- Consumer analytics on broadcasting, video on demand and even internet distribution
Digital security:
- Digital rights management for video on demand and music
- Another layer of security to detect counterfeiting and piracy
- Authentication and confirmation of genuine content
Multimedia advertising:
- Connection ofkapps to increase viewer engagement
- Synchronization with advertising in real time
