Synthesizing Normalized Faces from Facial Identity Features

We present a method for synthesizing a frontal, neutral-expression image of a person's face given an input face photograph. This is achieved by learning to generate facial landmarks and textures from features extracted from a facial-recognition network. Unlike previous approaches, our encoding feature vector is largely invariant to lighting, pose, and facial expression. Exploiting this invariance, we train our decoder network using only frontal, neutral-expression photographs. Since these photographs are well aligned, we can decompose them into a sparse set of landmark points and aligned texture maps. The decoder then predicts landmarks and textures independently and combines them using a differentiable image warping operation. The resulting images can be used for a number of applications, such as analyzing facial attributes, exposure and white balance adjustment, or creating a 3-D avatar

Using Jet Substructure at the LHC to Search for the Light Higgs Bosons of the CP-Violating MSSM

The CP-violating version of the Minimal Supersymmetric Standard Model (MSSM) is an example of a model where experimental data do not preclude the presence of light Higgs bosons in the range around 10 -- 110 GeV. Such light Higgs bosons, decaying almost wholly to b-bbar pairs, may be copiously produced at the LHC, but would remain inaccessible to conventional Higgs searches because of intractable QCD backgrounds. We demonstrate that a significant number of these light Higgs bosons would be boosted strongly enough for the pair of daughter $b$-jet pairs to appear as a single `fat' jet with substructure. Tagging such jets could extend the discovery potential at the LHC into the hitherto-inaccessible region for light Higgs bosons.Comment: LaTeX, 33 pages, 5 eps figures and 5 tables embedded. minor changes, to appear in Physical Review

EPR study of the Jahn-Teller effect of Cu2+ in ZnTiF6·6H20

The 34-GHz EPR spectrum of Cu2+ in ZnTiF6·6H20 shows a Jahn-Teller effect with a transition from a single-line spectrum at high temperatures to a multiline anisotropic spectrum. The transition temperature on cooling varied with Cu concentration from 172 K for a sample containing 0.2 at.% Cu to roughly 90 K for a 46-at. % Cu sample. For dilute samples, the single-line spectrum was isotropic at 300 K with g =2.223±0.005, but showed axial symmetry about the trigonal axis at 180 K with gj1 =2.226±0.005 and g~ =2.223±0.005. At 4.2 K, a "static" Jahn-Teller effect was observed with six axially symmetric Cu2+ spectra, each with g 11 =2.470±0.005, g1 =2.100±0.005, I A 11 I ~ I 06 X 10- 4 em -I, and I A 1 I ~30 X 10- 4 em - I. The z axis of these spectra was found to lie along the fourfold axes of two cubes with a common [Ill] axis, rotated by 40"±2" with respect to each other about this axis. Analysis of the 4.2-K data leads to the values q~O. 50 for the Ham reduction factor and K~O. 26 for the Fenni contact parameter, with A uA 1 < 0. An activation energy of about 100 cm-1 was deduced from the gradual increase of the anisotropy of the spectrum on cooling in the low-temperature region

Shape and Illumination from Shading Using the Generic Viewpoint Assumption

The Generic Viewpoint Assumption (GVA) states that the position of the viewer or the light in a scene is not special. Thus, any estimated parameters from an observation should be stable under small perturbations such as object, viewpoint or light positions. The GVA has been analyzed and quantified in previous works, but has not been put to practical use in actual vision tasks. In this paper, we show how to utilize the GVA to estimate shape and illumination from a single shading image, without the use of other priors. We propose a novel linearized Spherical Harmonics (SH) shading model which enables us to obtain a computationally efficient form of the GVA term. Together with a data term, we build a model whose unknowns are shape and SH illumination. The model parameters are estimated using the Alternating Direction Method of Multipliers embedded in a multi-scale estimation framework. In this prior-free framework, we obtain competitive shape and illumination estimation results under a variety of models and lighting conditions, requiring fewer assumptions than competing methods.National Science Foundation (U.S.). Directorate for Computer and Information Science and Engineering/Division of Information & Intelligent Systems (Award 1212928)Qatar Computing Research Institut

A mathematical model for improving the mechanism of satellite antenna

The functionality of any type of antenna could be traced to the Maxwell's electromagnetic field equations. However,salient operational problems of antennas are traced back to the Maxwell's. The inclusion of the effects of particulate to either transmission or reception unit of antenna is paramount. The Schrodinger was used to model a now reformed Maxwell's equation which explains in details the electrostatic and induced magnetic field of either transmitting or receiving antenna. This theory applies to only to stationary satellite antennas

Health Status and Associated factors of middle-aged and Older Adult Cancer Survivors in India : Results from the Longitudinal Ageing Study in India

Funding This study was funded by the Scottish Funding council’s Global Challenges Research Fund Pump Priming Grant (SF10206–53). The funders had no role in the data analysis or decision to publish.Peer reviewedPublisher PD

Role of private hospitals in Kerala : an exploration

This is an attempt to understand the characteristics of private hospitals and the equity in accessing their services, using secondary data available for the period 1986-2004. The data indicates that private hospitals did not expand in numbers but a strong consolidation by large hospitals has taken place. Public policy favouring increased private sector participation in medical education coupled with opening of super specialty hospitals has led to a situation where small hospitals or nursing homes are losing their significance and a large number of them have been phased out. The regional variation in availability of private hospitals is sizeable. The presence of private hospitals is comparatively limited in northern districts of Palakkad, Kozhikode, Malappuram and Kasargod. Annual hospitalisation rates show a rise in demand for hospital facilities across this time period. Rich-poor divide in potential to seek care from private hospitals highest during 1995-96, but declined marginally in 2004. Though the quantum of utilization of private hospitals among poor is similar as rich, it taxes them severely. Overall economic marginalisation of low social groups has further restricted their access to private hospitals. Analysis also shows that the duration of hospitalisation is lesser if treated in a private hospital than in a government hospital and that the charity component in the so called “charitable hospitals” is disappearing. Key Words: Private hospitals, health system, equity, Kerala. JEL Classification: I11, I18, I19, J1