A novel zero-watermarking scheme based on NSCT-SVD and blockchain for video copyright

Abstract

With the advent of information era, issues about video copyright continue to emerge. In the grey industrial chain of piracy, the film industry is a major disaster area so far. The current protection schemes for video copyright are inefficient and costly so that video industry still has to face the infringement. Research on a simple and efficient protection technology of video copyright is urgent. To address the inefficiency and irregularity of the current protection schemes for video copyright, this paper proposes a simple and efficient protection scheme for video copyright based on video zero-watermarking and blockchain. The results show that key-frames extraction and key-frames zero-watermarking based on NSCT-SVD in the proposed video zero-watermarking algorithm perform well and achieve low-cost protection for video copyright in practical environment. In addition, video zero-watermarking algorithm of proposed scheme works well with blockchain. Proposed scheme improves some extent on database centralization and evidential difficulties of traditional video zero-watermarking schemes, and it is more reliable, simpler and more effective than traditional video zero-watermarking schemes without blockchain. Keywords: Video copyright, Blockchain, Zero-watermarking, Privacy, Key-frames extraction