Technological innovation in all areas has led to the appearance in recent years of new metallic and pearlescent materials, yet no exhaustive studies have been conducted to assess their colorimetric capabilities. The chromatic variability of these special-effect pigments may largely be due to the three-dimensional effect of their curved shapes and orientations when they are directionally or diff...

Combining multiple types of night vision cameras, such as low-light-level visible to near infrared (VNIR), short-wave (SWIR), mid-wave (MWIR), and/or long-wave infrared (LWIR), enables the presentation of complimentary information into a single display. A great deal of developmental work has been devoted to maximizing the information in the fused imagery; however, fusion schemes that rely on so...

Although methods exist for predicting the color of a spot color ink when it overprints another ink, there is a need for a simplified model for the purpose of previewing that can be used during document creations. The proposed model characterizes each spot color individually and predicts the color of overprinting solids and halftones by linearly combining the reflectances of two colors. Each ink...

A perceptually motivated subspace based approach is proposed for enhancement of speech corrupted by colored noise. The proposed approach takes into account the frequency masking properties of the human auditory system and reduces the perceptual effect of the residual noise. Objective measures and informal listening tests demonstrated improvements over other subspace-based methods when tested wi...

Abstract Previous works have shown that time asymmetric forcing on one hand, as well as non-Gaussian noises on the other, can separately enhance the efficiency and current of a Brownian motor. Here, we study the result of subjecting a Brownian motor to both effects simultaneously. Our results have been compared with those obtained for the Gaussian white noise regime in the adiabatic limit. We f...

Previous studies have found that children’s judgments of syllable-initial /s/ and /JY are more related to the vocalic F2 transition and less related to the fricative-noise spectrum than are adults’ judgments [Nittrouer & StuddertKennedy, JSHR, 30 (1987); Nittrouer, J. Phon., 2

This study investigated the effects of seawater on cavitation noise using a water jet test, a two-dimensional wing test, and a three-dimensional wing test. A model propeller cavitation test was conducted in a cavitation tunnel using seawater, in order to determine the effects of propeller cavitation more precisely. In the cavitation tests, measured propeller performance for both cavitation nois...

Recently efficient algorithms have been published for generating large point sets with Poisson-disk distribution. With their blue noise spectral characteristics, Poisson-disk distributions are considered to produce visually pleasing patterns. Some applications, e.g., non photo-realistic rendering (NPR), require, in addition to efficiency, the production of aesthetically pleasing point sets adap...

This study analyzes the handling noises that occur when a finger is slided along a wound string. The resulting noise has a harmonic structure due to the periodic texture of the wound string. The frequency of the harmonics and the root-mean-square amplitude of the noise were found to be linearly proportional to the sliding speed. In addition, the sliding excites the longitudinal modes of the str...