Learning and Applying Color Styles From Feature Films

Directors employ a process called “color grading” to add color styles to feature films. Color grading is used for a number of reasons, such as accentuating a certain emotion or expressing the signature look of a director. We collect a database of feature film clips and label them with tags such as director, emotion, and genre. We then learn a model that maps from the low‐level color and tone properties of film clips to the associated labels. This model allows us to examine a number of common hypotheses on the use of color to achieve goals, such as specific emotions. We also describe a method to apply our learned color styles to new images and videos. Along with our analysis of color grading techniques, we demonstrate a number of images and videos that are automatically filtered to resemble certain film styles.     

Electromigration-induced failures in thin-film Al-Cu conductors

The effect of CuAl₂ precipitates on the electromigration lifetime of thin film Al-Cu conductors was studied by varying the Cu concentration in the 0–12 wt per cent range. Experiments show that the conductor lifetime does not increase monotonically with an increase in precipitate content. It is shown that the precipitates, when present in sufficient quantity, can greatly modify the grain size distribution and hence can affect the electromigration lifetime. These results are interpreted in terms of a model relating the vacancy and the copper atom flux along the grain boundaries. The roles of annealing treatments, copper concentration, structural non-homogeneities and test temperatures are explained by the present model.     

Effect of Phase Transformation on Densification During Hot Isostatic Pressing

Densification of mixed phases which undergo phase transformation at elevated temperatures during hot isostatic pressing is described. The effect of the phase transformation on the densification process is shown relative to the densification characteristics of the major phase component of the mixed system. The densification of a mixed phase system undergoing phase transformation is compared using the mechanism maps for hot isostatic pressing of the single phase material. Densification of mixed phase systems undergoing phase transformation, such as homogenization with Kirkendall Effect, is considerably slower than its constituent single phase material. The tendency to generate Kirkendall pores due to homogenization of chemically different materials opposes the normal densification process, thus slowing down the densification process.     

Fast neutron irradiation of A-203 steel — recovery studies

A-203 steel has been irradiated by fast neutrons to fluences of 1 × 10²² and 1.25 × 10²² n/m². The isochronal annealing studies have been carried out from 333 to 913 K. The results show a recovery peak at ˜ 385 K, which has been explained to arise due to migration of carbon and carbon-vacancy complexes. After this stage the resistivity instead of decreasing starts increasing. This has been explained on the basis of increase of short range ordering on annealing. The influence of nickel and carbon on the recovery behaviour has also been discussed.     

An architecture for a DSP field-programmable gate array

This paper describes an application specific architecture for field-programmable gate arrays (FPGAs). Emphasis is placed on the logic module architecture and channel segmentation for the FPGAs targeted for application areas related to digital signal processing (DSP). The proposed logic module architecture is well-suited for efficient implementation of frequently used logic functions in the DSP application area. This is mainly because it is possible to implement most of these functions using one logic module, which results in a reduction in both the net lengths and the number of antifuses used. The performance improvements are achieved by customizing the logic module architecture and the programmable interconnect to suit the requirements of DSP applications     

Thioharnstoffderivate als Dampfphaseninhibitoren der Korrosion

Thio urea derivatives as vapour-phase corrosion inhibitors The authors have investigated the effect of allylthiourea, phenylthiourea, tetramethylthiuram monosulphide, N-phenyl-N'-p-tolylthiourea, tetramethylthiuram disulphide, diphenylthiourea and quinolin as corrosion inhibitors of mild steel in moisture saturated air. It was possible to find a relationship between the shift of the electrode potential towards more positive values and the inhibition effect as well as the degree of adsorption. In the anodic range, the polarisation change is less marked than in the cathodic range. Inhibition at the vapour phase always calls for adsorption; in addition, however, the wetting and hydrophobisation of the surface also play an important part. A comparison with the potentials and polarization values obtained from immersion tests gives rise to the assumption that, in an aqueous medium, the inhibition mechanism is different.     

Effective Mass Model Supported Band Gap Variation in Cobalt-Doped ZnO Nanoparticles Obtained by Co-Precipitation

Semiconductors - Zn1 –xCoxO (x = 0, 0.01, 0.03, 0.05) nanoparticles were synthesized using co-precipitation method. Shift in peaks of XRD patterns for 2θ values has been observed. The...     

Automatic Cinemagraph Portraits

Cinemagraphs are a popular new type of visual media that lie in‐between photos and video; some parts of the frame are animated and loop seamlessly, while other parts of the frame remain completely still. Cinemagraphs are especially effective for portraits because they capture the nuances of our dynamic facial expressions. We present a completely automatic algorithm for generating portrait cinemagraphs from a short video captured with a hand‐held camera. Our algorithm uses a combination of face tracking and point tracking to segment face motions into two classes: gross, large‐scale motions that should be removed from the video, and dynamic facial expressions that should be preserved. This segmentation informs a spatially‐varying warp that removes the large‐scale motion, and a graph‐cut segmentation of the frame into dynamic and still regions that preserves the finer‐scale facial expression motions. We demonstrate the success of our method with a variety of results and a comparison to previous work.     

Development of radar absorbing nano crystals by microwave irradiation

Single phase M-type barium hexaferrite nano crystals of radar absorbing material i.e., BaFe₁₂O₁₉ were synthesized by a modified flux method under cyclic microwave irradiation. Uniform and ultrafast morphological transformation from spherical to pyramidal-faced nano crystals were noticed in field emission electron microscopy during the cyclic microwave irradiation power for constant time. The reflection loss of nano crystals in Ku band (12.4-18.0 GHz) were measured. Significant increments in reflection loss from − 15.23 to − 53.63 dB over a wide bandwidth were noticed during symmetric morphological growth of single phase nano crystals.