Báo cáo hóa học: " Offline Signature Verification Using the Discrete Radon Transform and a Hidden Markov Model" doc

... developed a system that automatically authenticates offline handwritten signatures using the discrete Radon transform (DRT) and a hidden Markov model (HMM). Given the robustness of our algorithm and the ... obtained. Kaewkongka [8] uses the Hough transform (general Radon transfor m) to extract the parameterised Hough space from a signature skeleton as a u...

Ngày tải lên: 23/06/2014, 01:20

... metrics. The EER is 0 for the normalised by geometrical mean (mean) and gamma corrected (gamma) metrics as it was the same case in the training set, and, again, the gamma corrected metric shows the ... the similarity transformation (ST), which is a special case of the global a ne transformation (GAT). ST can model translation, rotation and isotropic scaling using 4 p...

Ngày tải lên: 21/06/2014, 22:20

... p40 0 1 2 3 4 5 0.00 0.01 0.02 AST Control AST/Mat Mat AST Control AST/Mat Mat AST Control AST/Mat Mat Relative expressionRelative expression AST/Mat AST/Mat AST/Mat AST Control Mat AST Control Mat AST Control Mat 0.000 0.005 0.010 0.015 0.8 1.0 Journal ... individual days. Again, P values ≤ 0.05 were considered statistically significant. All data were analyzed using the Prism (Graph Pad)...

Ngày tải lên: 18/06/2014, 15:20

... plasma sample. Finally, although analyti- cal and physiological variations may be significant when comparing viral urine load in patients with BKVAN, there is general agreement that repeated values ... Fernanda Chiarini - fernanda.chiarini@uniroma1.it; Franco Di Monaco - francodimonaco@interfree.it; Valeria Pietropaolo* - valeria.pietropaolo@uniroma1.it * Corresponding author Abstract Cli...

Ngày tải lên: 20/06/2014, 01:20

... characterization of the optimal oversampling factor is described in the second paragraph of the Sect. 4.2.2. The correlation values C are calcula ted by the oversa mpling values and the ideal spreading ... sends a message to a receiver’s data radio. Therefore, when the PR changes, each PR has its opti- mal preamble time period and extra latency, caused by its false wake-...

Ngày tải lên: 21/06/2014, 02:20

... the standard processing and LIP models and can yield visually more pleasing outputs [22]. A mathematical analysis shows that in fact LIP and standard mathematical operators are instances of the ... σ x and σ y are the sample standard deviations of x and y,respectively,σ xy is the sample covariance of x and y ,and μ x and μ y are the sample means of x and y,respect...

Ngày tải lên: 21/06/2014, 08:20

... peaks. On the other hand, there may also be the concern that multiple peaks of single transmitting signal reflected from one target may a ect determining the main peak of ACF. As a matter of fact, ... International Conference on Parallel and Dist ributed Computing, Applications and Technologies (PDCAT ’03) , pp. 899–903, August 2003. [27] S. Matsufuji, K. Takatsukasa, Y. Watanabe,...

Ngày tải lên: 21/06/2014, 17:20

... to the simple harmonic function used in Fourier analysis. Given a signal x(n), the starting point of the EMD is the identification of all the local maxima and minima. All the local maxima are then ... it can better capture signal correlations. The elements of the matrix R 2 and the vector p can be estimated by sample averages. As in the OSR case, an adaptive approach...

Ngày tải lên: 21/06/2014, 22:20

... Inequalities and Applications Volume 2008, Article ID 719354, 4 pages doi:10.1155/2008/719354 Research Article Certain Integral Operators on the Classes Mβ i  and Nβ i  Daniel Breaz Department of Mathematics, ... 2 Journal of Inequalities and Applications Remark 1.1. This operator extends the integral operator of Alexander given by Fz  z 0 ft/tdt. Also, we consider the...

Ngày tải lên: 22/06/2014, 03:20

... Inequalities and Applications Volume 2008, Article ID 719354, 4 pages doi:10.1155/2008/719354 Research Article Certain Integral Operators on the Classes Mβ i  and Nβ i  Daniel Breaz Department of Mathematics, ... 2 Journal of Inequalities and Applications Remark 1.1. This operator extends the integral operator of Alexander given by Fz  z 0 ft/tdt. Also, we consider the...

Ngày tải lên: 22/06/2014, 06:20