statistical watermark detection in the transform domain for digital images

... methods which perform not only spatial domain watermarking but also watermarking in transform domains Its test statistic is the correlation between the watermark and the possibly watermarked signal ... p) (2) 2523 In order to compute the final watermarked signal s (in the spatial domain) , the inverse discrete Fourier transform (IDFT) is applied to the watermarked magnitude M and the initial DFT ... (k) denote the real and the imaginary part of S(k), respectively As mentioned in the introduction, the watermark embedding is performed in the Fourier domain and more specifically in its magnitude...

Ngày tải lên: 23/06/2014, 01:20

... SPECTROSCOPY AND IMAGING FOR IMPROVING CANCER DETECTION IN THE HEAD AND NECK AT ENDOSCOPY LIN KAN 2012 MULTIMODAL OPTICAL SPECTROSCOPY AND IMAGING FOR IMPROVING CANCER DETECTION IN THE HEAD AND NECK ... and it therefore is also routinely used in the initial staging of tumors in patients [13] Detailed MR 10 images allow clinicians to better evaluate various parts of the body and determine the 11 ... available to the nuclei Of there, 3N-6 (3N-5 for a linear molecule) results in the vibrations of the molecule Considering a diatomic molecule with the single normal coordinate Q1 , the induced dipole...

Ngày tải lên: 09/09/2015, 10:09

... utilized in the next year Based on these findings, a management method adequate to obtain the biomass of the giant reed and maintain the wetland potential is proposed as shown in Fig 10 In this ... whole plants including the roots and rhizomes are cropped except for the roots and rhizomes remaining for the next year Thereafter, the giant reeds grow with the rhizome extension, and the giant ... method, the above-ground part of the giant reeds that will remain the following year are cropped before the start of the dying down period Then, after all of the above-ground part has died down, the...

Ngày tải lên: 05/09/2013, 09:38

... considerations in the European market for building and future-proofing robust, flexible FTTN infrastructures Leveraging the existing ducts In deploying fiber from the central office (CO) to the node, ... directions, there are advantages in having patch cabinets, at least in certain locations Again, it’s incumbent upon the planner to decide where advantage is gained from connectorization in the network These ... specified distance before some of the ducts branch out into other directions Therefore, it’s not one cable running in one duct to one group of cabinets Rather, it is multiple ducts containing multiple...

Ngày tải lên: 24/01/2014, 11:20

... these (the targeted word, the one preceding and one following/ the targeted word and the one preceding/ the targeted word and the one following/ the targeted word and the two preceding/ the targeted ... can be considered the same as deciding which of the three labels (Eb: The word is at the beginning of the erroneous part.”, Ee: The word is in the middle or end.” or C: The word is correct.”) ... be converted into corrected equivalents We did this with the 50 items of training data to extract the correct sentences and then added them to the training data We also added the interviewers’...

Ngày tải lên: 20/02/2014, 16:20

... on the two further subunits of the native oxidase In focussing on the main interaction domain on subunit II, we introduced additional mutations in exposed residues in the relevant area above the ... estimate the extent of the acidic region responsible for cytochrome c docking While no direct structural information is at hand for the docked complex, the interaction domain for cytochrome c on the ... three for the twosubunit enzyme, while its Km is diminished twofold The overall specificity constant (kcat/Km) of this two-subunit complex therefore remains in the same range, explaining in part...

Ngày tải lên: 22/02/2014, 07:20

... unfolding of some protein substrates is initiated through productive binding to the substrate via two elements in ClpA, one in the N -domain and the other in the pore of the ClpA hexamer In the ... residues in the N -domain In this case, it is appealing to speculate that ClpS itself may act as the second binding site required for unfolding, thereby replacing a need for the N -domain Experimental ... N -domain and two ATP-binding domains referred to as the D1 and D2 domains Interestingly, deletion of the N -domain from ClpA not only abolishes binding of the adaptor protein, ClpS, but additionally...

Ngày tải lên: 07/03/2014, 05:20

... Therefore, the purified singlecysteine-containing fusion proteins were examined for their ability to bind N-ethylmaleimide The single cysteine residue is accessible to N-ethylmaleimide The initial ... N-terminal NBD of P-glycoprotein contains only a single cysteine in the Walker-A motif [43] Thus, MBP-NBD-Nter is a 75-kDa fusion protein containing a single cysteine residue located in the ATP-binding ... on p[NH]ppA binding, in agreement with the results obtained here The nonidentical interaction of GTP may be related to another variation in sequence in the vicinity of the ATP-binding pocket,...

Ngày tải lên: 08/03/2014, 08:20

... causes a conformational change in a similar manner to NifA; the binding of the ATP analog induces the rearrangement of the GAF and possible AAA+ (the central domain) domains in VnfA Indeed, the limited ... apoform were not observed in the holo-form, whereas the fragment at 28 kDa in the holo-form was scarce in the apo-form A fragment at 19 kDa in the holo-form is the other major difference, although ... is the purification of an AnfA variant reported by Austin et al [22] In their study, the N-terminal domain of AnfA was truncated to prevent the intrinsic aggregation of the intact form during...

Ngày tải lên: 15/03/2014, 09:20

... original NMR numbering for two -domain mammalian metallothionein (2, and are assigned to the three divalent metal ions in the b domain) [10,11] The 11 cysteinyl sulfurs are labeled according to the ... required for nearly all the metallothionein species to be converted into the Cd5a form The ESI mass spectrum obtained for the purified Cd-coordinated a domain as isolated from the recombinant preparation ... identification of the binding site for the fifth Cd2+ ion in the Cd5a-rhMT 1a cluster The indirect 2D 1H–113Cd NMR approach exploits the J scalar coupling between the cysteine b protons and the coordinated...

Ngày tải lên: 16/03/2014, 06:20

... have the PEST motif within the SH2 domain, while SOCS1, -5 and -7 contain PEST motifs in the N-terminal domain The PEST sequence in the CIS SH2 domain is located eight residues downstream from the ... phosphatidylinositol (PtdIns) 3-kinase (N-terminal) SH2 domain (the SH2 domain with the highest sequence identity in the PDB) were therefore aligned and hydrophobic residue substitutions in SOCS3 ... the C-terminal half of the KIR and the entire ESS form one single a-helix In addition, we show that the SH2 domain is a 140-residue domain that contains a 35-residue unstructured PEST motif insertion...

Ngày tải lên: 16/03/2014, 14:20

... going in the same direction, was the motivation for the inclusion of the global index in the monitoring plan, that is, to help prevent premature stopping if there is major uncertainty concerning ... who initiated hormone therapy in the GPRD were, on average, 8.6 years younger than initiators in the WHI Fourth, the particular drugs used for postmenopausal hormonal therapy in the WHI and in the ... confidence intervals) for the ratio of estrogen-plus-progestin HRs in the OS to those in the CT, following adjustment for the confounding factors listed and with time-from-initiation accommodation These...

Ngày tải lên: 28/03/2014, 12:20

... to the structure formed by two tandem repeats [21] In mammalian AMPK, the CBS domains have been shown to bind the allosteric activator of the kinase, AMP, whereas the two pairs of CBS domains ... Despite the considerable effort invested in this area, the nature of the mutations in the CBS domains of the AMPK c3 gene has remained controversial A previous report provided evidence that the activity ... raises the possibility that nucleotide binding in Sc pombe AMPK may differ from that in the human enzyme The present study does not explain the mechanisms by which the mutations in CBS domains of...

Ngày tải lên: 30/03/2014, 08:20

... Roaming between the IMS and the CS CN domain refers to inter -domain roaming between IMS and CS When a user is not registered or reachable in one domain a session can be routed to the other domain ... would bring modularity to the system, which is definitely a common interest in the industry Therefore, co-operation between the OMA and 3GPP will increase in the future It is very likely that the ... Offline charging is a charging process in which the charging information does not affect in real time the service rendered This is the traditional model in which the charging information is collected...

Ngày tải lên: 05/04/2014, 23:31

... (or inverse transform and forward transform operations of transform coding) are not cost effective There is also another advantage of working with the representation in the compressed domain Usually, ... encoding of intermediate symbols considering their statistical distributions in the domain of application As the techniques developed for these tasks are guided by information theory [52], they ... videos are formed by their discrete cosine transforms (DCT) [3] and discrete wavelet transforms (DWT) [92] We refer to these domains as compressed domains or domains of compression Since images and...

Ngày tải lên: 05/06/2014, 12:04

... glycosylation These findings are intriguing given that these three cysteine residues are absolutely conserved not only in the F proteins of other Pneumovirinae, but also in the F proteins of the Paramyxovirinae ... of the individual cysteine residues in the extracellular domain in protein expression and cell fusion of the HRSV F protein and represents the first analysis of the contribution of the cysteine ... by an intervening cysteine-rich region A hydrophobic transmembrane domain is located near the C-terminus of the protein followed by a short (26 residues) cytoplasmic domain containing a single...

Ngày tải lên: 20/06/2014, 01:20

... in that both the MWICSS and the MWSIC detect the start of the attacks but show a relative large delay in detecting the ending points In other words, these algorithms seem to be sensitive to the ... anomaly detection (Φ) [13, 17], which can be accurately measured using the wavelet transform This section investigates the use of the wavelet transform and change-point detection algorithms in order ... representatives of the two different kinds of change points, in mean and in variance Results for MWICSS and MWSIC are for a threshold level and window size 128, those for MWWJ are for window size 128 In these...

Ngày tải lên: 21/06/2014, 22:20

... by minimizing a mean square error (minimal distortion principle) [8] This can be realized in the frequency domain by multiplying the outputs by the inverse of the unmixing matrix [9, 10] The ... mixing (and therefore of the EURASIP Journal on Applied Signal Processing unmixing) filters is used in the initialization of the joint diagonalization algorithm The exploitation of the continuity ... RESOLVING THE PERMUTATION AMBIGUITY Several ideas have been introduced to resolve the permutation ambiguity, as detailed in the introduction The first one consists in constraining the separating...

Ngày tải lên: 22/06/2014, 23:20

... estimate H(k+1) needed for the initialization of the ST-OFDM BEM in the (k + 1)th iteration of the receiver At the beginning of the first iteration, however, no a priori information on the channel symbols ... bit information matrices and, after bit interleaving and probability recombination, the a posteriori symbol information matrices {Il(2) [k]} (in log form) Finally, d,o at the last iteration, the ... common with the first of the next one The information provided by the pilot symbols is exploited to initialize the BEM algorithm In particular the initial channel estimate for the jth receive antenna...

Ngày tải lên: 23/06/2014, 00:20

... − 1, the global maximum and the global minimum, respectively, in the Radon domain Therefore, for each point belonging to the direction βm and having index n, the nonlinearity (13) weights the ... nonlinearity aimed at restoring the original edge Blind Image Nonlinear Deblurring in the Edge Domain 2467 4.2 Local Radon transform of the edge image: nonlinearity design The design of the ... [14], the authors design the nonlinear processing in a transformed domain that allows a compact representation of the image edges the edge domain In this paper, we investigate the design of the...

Ngày tải lên: 23/06/2014, 01:20