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Robust wavelet-based video watermarking scheme for copyright protection using the human visual system

[+] Author Affiliations
Radu O. Preda

Politehnica University Bucharest, Electronics, Telecommunications and Information Technology, Bucharest, Bucharest 060762 Romania

Dragos Nicolae Vizireanu

Politehnica University Bucharest, Electronics, Telecommunications and Information Technology, Bucharest, Bucharest 060762 Romania

J. Electron. Imaging. 20(1), 013022 (March 18, 2011). doi:10.1117/1.3558734
History: Received February 15, 2010; Revised January 03, 2011; Accepted February 01, 2011; Published March 18, 2011; Online March 18, 2011
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The development of the information technology and computer networks facilitates easy duplication, manipulation, and distribution of digital data. Digital watermarking is one of the proposed solutions for effectively safeguarding the rightful ownership of digital images and video. We propose a public digital watermarking technique for video copyright protection in the discrete wavelet transform domain. The scheme uses binary images as watermarks. These are embedded in the detail wavelet coefficients of the middle wavelet subbands. The method is a combination of spread spectrum and quantization-based watermarking. Every bit of the watermark is spread over a number of wavelet coefficients with the use of a secret key by means of quantization. The selected wavelet detail coefficients from different subbands are quantized using an optimal quantization model, based on the characteristics of the human visual system (HVS). Our HVS-based scheme is compared to a non-HVS approach. The resilience of the watermarking algorithm is tested against a series of different spatial, temporal, and compression attacks. To improve the robustness of the algorithm, we use error correction codes and embed the watermark with spatial and temporal redundancy. The proposed method achieves a good perceptual quality and high resistance to a large spectrum of attacks.

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Citation

Radu O. Preda and Dragos Nicolae Vizireanu
"Robust wavelet-based video watermarking scheme for copyright protection using the human visual system", J. Electron. Imaging. 20(1), 013022 (March 18, 2011). ; http://dx.doi.org/10.1117/1.3558734


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