Background: One of the challenges of PET/MRI combined systems is to derive an attenuation map to correct the PET image. For that, the pseudo-CT image could be used to correct the attenuation. Until now, most existing scientific researches construct this pseudo-CT image using the registration techniques. However, these techniques suffer from the local minima of the non-rigid deformation energy f...

Normalized cross correlation (NCC), Sum of squared differences (SSD), and Sum of absolute differences (SAD) are the linear correlation measures generally used for stereo correspondence. These measures fail to establish the correspondence under nonideal conditions such as specular reflection, occlusion etc. In this paper, the similarity measures for stereo correspondence based on rank correlatio...

Consider real reductive group G, as defined in [Wal88]. Let Π be an irreducible admissible representation of G with the distribution character ΘΠ, [Har51]. Denote by uΠ the lowest term in the asymptotic expansion of ΘΠ, [BV80]. This is a finite linear combination of Fourier transforms of nilpotent coadjoint orbits, uΠ = ∑ O cOμ̂O. As shown by Rossmann, [Ros95], the closure of the union of the ni...

Dental consideration to the weak populace is a forthcoming issue in well-being approaches because of absence proper and particular techniques. Patients with tangible deficiencies pose problem experts anticipation oral sicknesses generally correspondence issues.