Báo cáo hóa học: " Research Article Peak-Shaped-Based Steganographic Technique for JPEG Images" pdf

... Corporation EURASIP Journal on Image and Video Processing Volume 2009, Article ID 217016, 13 pages doi:10.1155/2009/217016 Research Article A New Technique for the Digitization and Restoration of Deterior ated ... an urgent need for a technique that can capture the information in each of the negatives of a large collection before the damage causes a complete and irretrievable lo...

Ngày tải lên: 21/06/2014, 20:20

... generation of parity and JPEG 2000 packets for each layer of each precinct. Those packets are then stored with their associated rate-distortion information. For both the parity and JPEG 2000 encoding modes, ... and 16 compare for both sequences the performance of our system with conventional (Motion) JPEG 2000, MPEG4-AVC, and SVC solutions. The perfor- mances of the proposed syste...

Ngày tải lên: 21/06/2014, 20:20

... Gaussian distribution. Thus, (18) is the same as the formula for BER performance by coherent detection in an AWGN channel. Equations (19)and(20) show BER performance in which the pulse repetition interval ... average power over time for each signal for the duration. Therefore, the peak power of the p-UWB is larger if the pulse repetition interval is longer. Bit error rate (BER) performa...

Ngày tải lên: 21/06/2014, 22:20

... autocorrelation-IPDFT technique for periodicity characterization of sequences has been proposed. This technique has been shown to provide improved accu- racy relative to the autocorrelation and IPDFT for ... to Professor Eliathamby Ambikairajah for helpful discussions. This research was supported by a University of New South Wales Faculty of Engineering Early Career Research Gra...

Ngày tải lên: 22/06/2014, 00:20

... Journal on Advances in Signal Processing Volume 2008, Article ID 453218, 11 pages doi:10.1155/2008/453218 Research Article A Simple Technique for Fast Digital Background Calibration of A/D Converters Francesco ... gain K is 2 −16 for the proposed method and 2 −20 for the standard calibration, that results in a factor 16 on the filter bandwidth. 5. COMPARISON WITH EXISTING TECHNIQ...

Ngày tải lên: 22/06/2014, 19:20

... improvement was considered for the original EVESPA. As expected, the performance of the proposed procedure is at its worse for low values of M and G where it is slightly outperformed by the original ... column. Therefore, the columns of E −† H = QZ match those of Q to within scale and permutation and a straightforward estimation of B becomes  B = E s  Q = E s E −† H . (15) 4. Performanc...

Ngày tải lên: 21/06/2014, 05:20

... Corporation Journal of Inequalities and Applications Volume 2011, Article ID 434175, 7 pages doi:10.1155/2011/434175 Research Article Strong Converse Inequality for a Spherical Operator Shaobo Lin and Feilong ... p<∞. 1.3 In the following, L p  d−1  will always be one of the spaces L p  d−1  for 1 ≤ p<∞,orC d−1  for p  ∞. For an arbitrary number θ,0<θ<π, we...

Ngày tải lên: 21/06/2014, 05:20

... Corporation Fixed Point Theory and Applications Volume 2011, Article ID 701519, 30 pages doi:10.1155/2011/701519 Research Article Solvability and Algorithms for Functional Equations Originating from Dynamic ... true for n  1. Therefore 3.64 holds for each n ≥ 0. Given k ∈ N, note that lim n →∞ ψϕ n k exists. It follows that there exist constants M>0andn 0 ∈ N satisfying...

Ngày tải lên: 21/06/2014, 05:20

... ≤  t 0 αHsds,fort ∈ I. Hindawi Publishing Corporation Advances in Difference Equations Volume 2011, Article ID 483816, 17 pages doi:10.1155/2011/483816 Research Article Nonlocal Cauchy Problem for Nonautonomous ... {x  y : x ∈ A, y ∈ B}. 7 αA  x 0 αA, for any x 0 ∈ X. For H ⊂ CI, X we define  t 0 H  s  ds    t 0 u  s  ds : u ∈ H  , 2.3 for t ∈ I,whereHs...

Ngày tải lên: 21/06/2014, 05:20

... implies that F  z  ≺ G  z  3.16 for the functions F and G defined by 3.6. Without loss of generality, we also can assume that G is analytic and univalent on and G  ζ /  0for| ζ|  1. For this purpose, ... Applications Volume 2011, Article ID 486595, 17 pages doi:10.1155/2011/486595 Research Article Subordination and Superordination for Multivalent Functions Associated w...

Ngày tải lên: 21/06/2014, 05:20