This paper addresses face recognition under varying light via 3D reconstruction based on the techniques of shape from shading (SFS). First, we improve the geometric-based SFS by introducing the integrability constraint as one of the regular terms. This operation preserves the local curvedness of the recovered surface. Second, we propose a novel method to investigate human face recognition in th...

High performance Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr alloy with high strength and excellent ductility has been successfully developed by hot extrusion. The effect of plate-shaped long period stacking ordered (LPSO) phases and solute-segregated stacking faults (SFs) on the dynamically recrystallization (DRX) behavior was analyzed. The plate-shaped LPSO phases stimulate the DRX by particle stimulated nucle...

Shape from Shading (SFS) is one of the most extensively studied problems in Computer Vision. However, most of the approaches only deal with Lambertian or other specific shading models, and are hence limited in their applicability to real images. In this contribution we propose a general unified framework in which it is possible to incorporate different illumination and shading models. We effect...

In this paper the effects of polarimetry on the Synthetic Aperture Radar (SAR) shape-from-shading (SfS) technique developed by the authors are analysed and discussed. In particular, the validity of some hypotheses, on which the method is based, is investigated for the different polarization channels and their influence on the accuracy of the proposed SfS technique is discussed. The paper conclu...

magnitude (Mxy/M0) generated by AFPSFS/AFS pulse trains as a function of RF offset Figure 2. Contrast generated by AFP-SFS/AFS pulse trains as a function of TE for the phantom. Figure 3. Phantom and mouse brain images collected using AFP-SFS-SE (A, C) and AFP-AFS-SE (B, D) pulse sequences at TE = 80 ms (A, B) and TE = 49 ms (C, D). Image Contrast Enhancement using Selective Adiabatic Pulses tha...

Grounded in the transactional stress-coping theory and Tallis Eysenck (1994) model of nonpathological worry, present study sought to advance conceptual empirical understanding financial worry (FW). We positioned objective stressors (OFS), subjective (SFS), coping resources as key variables determinants The cross-sectional data consisted responses from a representative sample 19,385 adults, aged...

In Streaming Feature Selection (SFS), new features are sequentially considered for addition to a predictive model. When the space of potential features is large, SFS offers many advantages over methods in which all features are assumed to be known in advance. Features can be generated dynamically, focusing the search for new features on promising subspaces, and overfitting can be controlled by ...

Current studies that use traditional data envelopment analysis (DEA) neglect the 100% market share restriction. This study adopts zero-sum gains data envelopment analysis to measure the efficiency scores of securities firms (SFs) and indicates that the traditional DEA model underestimates the efficiency scores of inefficient SFs. This research analyses 266 integrated securities firms in Taiwan ...

In this study, we have compared foveal SF discriminations for luminance and color-defined stimuli using two different tasks (criteria): in criterion-A, the discrimination is based on spatial (size of the stimuli) and/or spatial frequency; in criterion-B, it is based on apparent motion (contraction/expansion). We used high contrast (75%) spatially localized D6 stimuli and cosine gratings (0.25-9...

Controversies on small-for-size (SFS) graft in liver transplantation have evolved in parallel with the history of living donor liver transplantation for adults. It is true that the liver regenerates rapidly within a limited threshold. But 'normal' liver weight itself is variable and the influences of variable liver graft and extrahepatic factors are not negligible in pathological condition. Cli...