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The rapid growth of digital multimedia and Internet technologies have brought big challenge to copyright protection. Billions of dollars are lost every year because of illegal use of digital products. Digital watermarking is an effective method of copyright protection. Recently, watermarking in wavelet domain turns into an active research direction due to the multiresolution property of wavelet transform...
Creases, as a special salient feature of palmprint, are large in number and distributed at all directions. It changes slowly in a personpsilas whole life, which qualifies themselves as features in palmprint identification. In this paper, we devised a new algorithm of crease extraction by using non-separable bivariate wavelet filter banks with linear phase. Compared with the traditional wavelet, our...
Watermarking plays a significant role in copyright protection. In this paper, a new method of digital watermarking is proposed based on a new non-tensor bivariate wavelet filter banks with linear phase, which are constructed from the centrally symmetric matrices. Our investigation demonstrates that the constructed non-tensor product bivariate wavelet filters have the following desirable properties,...
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