Video source tracing method based on watermarking technology

Abstract

The invention relates to a video source tracing method based on the watermarking technology, and the method comprises the following steps: extracting an original video, and obtaining the equipment information and user information; carrying out the conversion of the original video through employing a discrete cosine transform algorithm, converting the original video into a frequency domain from the time domain, and generating a to-be-embedded watermark through employing a watermark generation algorithm; enabling the to-be-embedded watermark to be embedded into the transformation domain of the original video through a watermark embedding algorithm, and generating a video comprising a watermark; carrying out the conversion of the video comprising the watermark through a reverse conversion algorithm, converting the video from the frequency domain into the time domain, and generating the original video comprising the watermark. According to the invention, the method enables the original video to be converted into the frequency-domain video from the time-domain video, and then the watermark is embedded into the frequency-domain video. The method employs the watermark generation algorithm and the watermark scrambling algorithm to generate the to-be-embedded implicit watermark. The to-be-embedded implicit watermark is embedded in the frequency domain of the frequency-domain video, and the generated video comprising the watermark is good in quality, is high in hiding performance and safety, is good in sense, and achieves a better source-tracing effect.

Description

technical field [0001] The invention relates to the field of video source tracing, in particular to a method for video source tracing based on watermark technology. Background technique [0002] In recent years, the scale of modern video surveillance systems such as safe cities and smart cities has become larger and larger. At the same time, the amount of surveillance video data is also increasing. Video surveillance applications have been fully rolled out from key areas such as public security and transportation to government agencies, judicial prisons, smart parks, smart buildings, finance, and telecommunications. As a result, video interactions under control have become more and more frequent, leading to great hidden dangers in video transfer monitoring (traceability). Video leaks and security data leaks caused by hidden dangers are commonplace. Surveillance video security issues have become a serious issue affecting residents. Major issues of everyday life, the video su...

AI Technical Summary

Problems solved by technology

The current mainstream video watermark embedding is mainly operated on time-domain video, and most of them are explicit watermark embedding, which has the disadvantages of damaging the quality of the front-end video, poor concealment and security, and poor video perception.

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