a new image based navigation technique for the interventional room

... Y Caulier and S Bourennane 3.3 Textural feature: transform approach The textural transform approach proposed by Weska [31], and based on the Fourier analysis was used for the characterization ... be the best way for the classification of small Y Caulier and S Bourennane Table 1: Values of the optimal and “nonoptimal” sets a1 and a2 for the 20 stripe features The maximum possible area size ... Si A general approach of the automatic image- based inspection of specular surfaces has been addressed in this paper Based on the stripe images generated by an existing illumination technique for...

Ngày tải lên: 22/06/2014, 01:20

... has created 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 loss of information ... placing a camera above a flat-panel computer monitor as seen in Figure The data acquired with the image- based scanner allows the optical properties of the negative layers to be decoupled by rear-illuminating ... for each one (Figure 5) For each pixel, the intensity values are normalized to one, and the scale factor, the Gaussian amplitude α, is saved as the attenuation factor for that pixel Then a nonlinear...

Ngày tải lên: 21/06/2014, 20:20

... measurement Automating the fiber diameter measurement and eliminating the use of the human operator is a natural solution to this problem Image Analysis An image analysis based method was proposed ... Transform Algorithm We established a new method based on image analysis in which the problem associated with the intersections was solved The method uses a binary image as an input Then, the distance ... deleting the intersections is used as a guide for tracking the distance transformed image and the diameters are computed from the intensities of this image at all points along the Nanoscale Res...

Ngày tải lên: 22/06/2014, 06:20

... measurement Automating the fiber diameter measurement and eliminating the use of the human operator is a natural solution to this problem Image Analysis An image analysis based method was proposed ... Transform Algorithm We established a new method based on image analysis in which the problem associated with the intersections was solved The method uses a binary image as an input Then, the distance ... deleting the intersections is used as a guide for tracking the distance transformed image and the diameters are computed from the intensities of this image at all points along the Nanoscale Res...

Ngày tải lên: 22/06/2014, 18:20

... GAG AGG AAC TGA ACA GAA CAT TG 3¢ 5¢ CAA CTG CGT ATT AGT GAA GAA TG 3¢ 5¢ AAT CAA ATT TTA TTA TAA GAC C 3¢ 5¢ AAT AGC TAA TTA GAG ACC AT 3¢ using the 2400 (or 480) thermal cycler To estimate the ... CAA CAA TAT GC 3¢ 5¢ GTC CCA ACT TGA AAT CCT GAT C 3¢ 5¢ CAA GTT TAT AGT CTA CAC GTT GTA C 3¢ 5¢ CTT AGC ATC TTC CAT GGC TTG ATC 3¢ 5¢ ATA CAC ACA AAC TCA CAA GG 3¢ 5¢ CAA CAT ATT TTA AAT AAA ATT ... TTG AAA AGG AG 3¢ 5¢ CCA GTG AAT ATT CAG GAC TGA T 3¢ 5¢ AGG CTC TAG CAT GAT TTG ATG T 3¢ 5¢ GCA TTT TTA TTT TGA ATG TAA A 3¢ 5¢ TAG TTC AAA TGC ACA TCT TAT 3¢ 5¢ GGC AGA GAA TAC GTT TAT ACT AA...

Ngày tải lên: 22/02/2014, 04:20

... dryland areas may conclude that the main reasons for their persistent poverty are marginal land and a lack of access to water This does not mean unawareing that the poverty has multiple causes, ... in such marginal areas ADB assumes that in certain rural locations, the primary reason for an inability to escape poverty has to with the natural environment For example, assessments of the poor ... using standard and accepted technical methods Lack of safe water, for instance, is measured according to the criteria put forward by the World Health Organisation, that takes into account the water...

Ngày tải lên: 05/03/2014, 16:20

... frequency measures are noted and arranged in a tabular form The joint frequency measures of the single meaning words are added separately for each group, i.e., the values in each column for the single ... of these cases, the incorrectness was attributable to the fact that the source of the data on word occurrences was limited in size, and also biassed rather heavily in Favor of the biological and ... word -for- word translations retaining all the allowed target equivalents of Russian multiple meaning words, as well as the "free" translations in which the ambiguity had been resolved by a human translator...

Ngày tải lên: 30/03/2014, 17:20

... GTGGTCGATTTTGCCAGCCTGTACCCGAGCATCATCCAGGCGCACAACCTGTGC GTAGTAGACTTTGCTAGCCTGTATCCTAGTATTATACAAGCTCATAATCTATGC GTGGTGGACTTTGCCAGCCTGTACCCCACCATCATCCAGGCCCACAACCTCTGC GTAGTGGACTTTGCCAGCCTGTACCCAAGCATTATTCAGGCACACAATCTGTGT GTAGTTGACTTTGCCAGCTTGTACCCCAGCATCATCCAGGCTCATAATCTATGC ... (60aa) AAD24564 (60aa) AAD24565 (60aa) AAC26682 (161aa) AAC26681 (161aa) AAD30140 (59aa) AAC55649 (60aa) AAC55650 (59aa) AAC55651 (59aa) AAC26684 (161aa) AAC55656 (59aa) AAC55657 (60aa) [36] [8] [37] ... AAC59454 (156aa) AAC55645 (55aa) CAB61753 (151aa) CAB61754 (151aa) AAC55648 (55aa) AAD30141 (56aa) AAG23218 (158aa) AAC57974 (151aa) DFASA-GDTD1B AAF23082 (158aa) DFASA-GDTD1B DFASA-GDTD1B DFASA-GDTD1B...

Ngày tải lên: 18/06/2014, 22:20

... fracture may have been avoided in the case of an abnormal bone structure and a deformed endomedullary canal as the FRF analysis showed an abnormality and the surgeon was alerted to the situation ... stages and canal and reinserting the prosthesis The FRF had a normal evolution during the reinsertion and the graphs corresponding to the final two stages, labelled as stage 4a and stage 5a, are ... mechanical characterization of the primary bone-prosthesis stability In a previous study we demonstrated the feasibility and validity of a vibration analysis technique for the assessment of the...

Ngày tải lên: 20/06/2014, 01:20

... data include SPOT images of a forest area and QuickBird images of a suburban area The quality assessment considers two distinct aspects: the visual and quantifiable Teo and Lau EURASIP Journal ... between the fused image and the original MS image The higher the correlation between the fused and original image, the more accurate the estimation of the spectral values is The correlation equation ... using the standard orthoimage coordinates The resolutions of the SPOT images are 2.5 m and 20 m, respectively The land cover of the QuickBird satellite image is a suburban area The nominal spatial...

Ngày tải lên: 20/06/2014, 20:20

... estimates of the noise covariance matrix with more variance when primary data are used More precisely, the variance of the noise covariance matrix estimate and then the associated performance ... R(nT), C(nT), s TNAR available R, C on sec data TNAR available R, C on sec + prim data No TNAR No TNAR available R, C on sec data TNAR available R, C on sec + prim data No TNAR - 29 - Receivers ... that a TNAR is available in this latter case A Unknown parameters (µs, φs) and known total noise (R, C) Under the assumptions A1 and A2 , assuming known parameters R, C and s and unknown parameters...

Ngày tải lên: 21/06/2014, 00:20

... table is a conceptual data structure for formation of a cluster whereas Cluster Adjacency Table (CAT) is used for keeping information about the adjacent clusters In CAT, CH stores the IDs of the ... be the MAC address as stated in FWCA Based upon the updated neighbour nodes’ list, the node calculates its Node Value Each node computes its node value based on the following parameters: • The ... expected and request zone for the destination node If the expected zone does not fall in the transmission range of the gateway node, it forwards the packet to its CH Then the cluster forwards the packet...

Ngày tải lên: 21/06/2014, 03:20

... local windows in the image Figure displays the original and corrupted images of Lena.jpg image Figure displays the original and corrupted images of Boat.gif image Figure displays the original and ... IEF for cameraman image A new switching -based median filtering scheme and an algorithm for removal of high-density salt and pepper noise in images is proposed The algorithm is based on a new concept ... results of various filters for Cameraman.tif image corrupted by 70%, 80%, and 90% noise densities 8–11 display the quantitative performance of the various algorithms for cameraman image It can be observed...

Ngày tải lên: 21/06/2014, 16:20

... Test images from DB3 (a: image 47 3, b: image 73 7): (a: 1, b:1) difference image between original image and watermarked image, (a: 2, b:2) difference image without the ridges area Watermark applied ... background area, especially images with small ridges area (i.e., image 75 and image 73 7), which can be easily removed by segmenting the image In addition, it can be said that images from database DB1 ... Test images from DB1 (a: Image 98 2, b: Image 20 1): (a: 1, b:1) difference image between original image and watermarked image, (a: 2, b:2) difference image without the ridges area Watermark applied...

Ngày tải lên: 22/06/2014, 00:20

... Journal of Theoretical Biology, vol 118, no 3, pp 295–300, 1986 [23] S Tiwari, S Ramachandran, A Bhattacharya, S Bhattacharya, and R Ramaswamy, “Prediction of probable genes by Fourier analysis ... as a parameter available for real-time control, so that a biologist viewing a periodicity characterization of a sequence might subjectively assign a relative weight to each of the autocorrelation ... component was not mentioned in the analysis of TATA tetramers specifically, it was found to be characteristic of all other C elegans tetramers analyzed in [1] Note also that the IPDFT reveals a strong...

Ngày tải lên: 22/06/2014, 00:20

... containing the position of bright and dark image lines are built from the image pattern f For all image maxima and minima the shape, see (1), the distancem, and the intensity values of bright and ... structural and a recording artefacts Images (e) and (f) depict a textural defect (classified as structural) and a good classified textural surface Images (g) and (h) are nearly the same recording artefact, ... surface the latter was falsely classified as textural defect The reason is of course the bad image quality, both average shape S values of 0.56 and 0.53 and average intensity values of 192 and...

Ngày tải lên: 22/06/2014, 19:20

... clinical impact and relevance to the quality indicators, summaries and links to guidelines applicable to the care of post-MI patients, and downloadable practice tools and patient educational materials ... distributed across the region served by the facility Many facilities are also affiliated with an academic medical center and support research activities Research within the facility must be formally approved ... specifically oversee all IRB protocols and to prepare a standard IRB packet for each facility In phase 1, research staff assisted each facility with IRB preparation but did not prepare a standard...

Ngày tải lên: 10/08/2014, 11:20

... 134:563-568 Saida T, Miyazaki A, Oguchi S, Ishihara Y, Yamazaki Y, Murase S, Yoshikawa S, Tsuchida T, Kawabata Y, Tamaki K: Significance of dermoscopic patterns in detecting malignant melanoma on acral ... Yoshida N, Ikegawa S, Ishihara K, Nakajima T: Clinical guidelines for the early detection of plantar malignant melanoma J Am Acad Dermatol 1990, 23:37-40 Miyazaki A, Saida T, Koga H, Oguchi S, ... Extent and consequences of physician delay in the diagnosis of acral melanoma Melanoma Res 1998, 8:181-186 Dalmau J, Abellaneda C, Puig S, Zaballos P, Malvehy J: Acral Melanoma Simulating Warts:...

Ngày tải lên: 10/08/2014, 21:23