Mohammad Reza Nilchiyan

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Although signature verification is safer biotypes in terms of criminal, it has more risk on business safety. In this paper we address important challenge of on-line signature verification, which is the high dimensionality of the signature features dataset. This issue can make the verification procedure computationally costly. In this regard, we take(More)
Given the raw absorption and differential phase-contrast images obtained from a grating-based x-ray radiography, we formulate the joint denoising of the absorption image and retrieval of the non-differential phase image as a regularized inverse problem. The choice of the regularizer is driven by the existing correlation between absorption and differential(More)
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