Research Of Mobile Digital Video Watermarking Algorithm Based On AVS1-P7Standard

Digital watermarking technology is a new copyright protection technology, based on theproblem of network copyright protection, Its essence is embed some logo information(including multimedia, documents, etc.) into the digital carrier without affecting the value ofthe original carrier in use at the same time and do not easy to be aware of or noticed by ourperceptual system after being embedded. Through these information hidden in the carrier, Toachieve the objective that confirm the content creators, buyers, or to send secret informationto determine whether the carrier has been tampered with is an important research directionand hotspot of information hiding.Research on watermarking technology focuses only on the image area initially, but videocontent authentication becomes more and more important with the development ofmultimedia applications. The watermark design difficulty it brings also increaseexponentially, because of the huge difference between video and image, The problem facedby the watermark technique also becomes more complex due to the enhancement of thewatermark attack.The emphasis of this paper is that improve the security of the watermark bytwo-dimensional Logistic chaotic encryption technology, and proposes a blind watermarkmethod embedded into I flame’s intermediate frequency coefficients, base on AVS1-P7videocoding standard. The final results show that the watermarked video can still be identified afternoise attack and compression attacks, and the watermarked video quality is not decreased, sothat it has advantages such as invisibility and robustness.