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Video Watermarking Algorithm Based on NSCT, Pseudo 3D-DCT and NMF.

Di Fan1, Xiao Zhang1, Wenshuo Kang1

  • 1College of Electronic and Information Engineering, Shandong University of Science and Technology, Qingdao 266590, China.

Sensors (Basel, Switzerland)
|July 9, 2022
PubMed
Summary

This study introduces a novel video watermarking algorithm using NSCT, 3D-DCT, and NMF for robust copyright protection. The method enhances anti-attack capabilities while maintaining video invisibility, solving issues with shearing attacks.

Keywords:
NMFcombined attackembedded strengthpseudo 3D-DCTvideo watermark

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Area of Science:

  • Digital multimedia security
  • Image and video processing
  • Information security

Background:

  • Current video watermarking algorithms struggle with robustness against diverse attacks, particularly shearing.
  • Protecting multimedia copyright is crucial in the digital age.

Purpose of the Study:

  • To propose a robust and invisible video watermarking algorithm for digital multimedia copyright protection.
  • To enhance the anti-attack capabilities of video watermarks, especially against shearing attacks.

Main Methods:

  • A novel video watermarking algorithm integrating Nonsubsampled Contourlet Transform (NSCT), pseudo 3D-Discrete Cosine Transform (3D-DCT), and Non-negative Matrix Factorization (NMF).
  • Embedding an encrypted QR code watermark into the NMF base matrix for improved robustness and invisibility.
  • Utilizing NSCT for multi-resolution decomposition, 3D-DCT for transform domain embedding, and NMF for feature extraction and watermark embedding.

Main Results:

  • The proposed algorithm achieves high invisibility, evidenced by a high signal-to-noise ratio (SNR) of the watermarked video.
  • Demonstrated high robustness against various common attacks, including filtering, noise, compression, shearing, and rotation.
  • Successfully addressed the limitations of existing algorithms in resisting shearing attacks.

Conclusions:

  • The developed video watermarking algorithm offers a significant improvement in robustness and invisibility for multimedia copyright protection.
  • This method provides a viable solution for securing digital video content against malicious attacks.
  • The algorithm's effectiveness against a wide range of attacks makes it suitable for practical digital multimedia copyright protection applications.