Few existing image defogging or dehazing methods consider dense and non-uniform particle distributions, which usually happen in smoke, dust fog. Dealing with these and/or distributions can be intractable, since fog’s attenuation airlight (or veiling effect) significantly weaken the background scene information input image. To address this problem, we introduce a structure-representation network...

A prototype display measurement assessment transfer standard (DMATS) is being developed by the National Institute of Standards and Technology (NIST) to assist the display industry in standardizing measurement methods used to quantify and specify the performance of electronic displays. Designed as an idealized electronic display, the DMATS illumination source emulates photometric and colorimetri...

Alessandro Rizzi John J. McCann Abstract — Intraocular glare and simultaneous contrast control appearance in high-dynamic-range (HDR) images. This paper describes unique test targets that simulate real images. These targets change the HDR range by 500 times, without significantly changing the veiling glare on the retina. As well, these targets have nearly constant simultaneous contrast. The ran...

We obtained new near-infrared images of the prototypical pre-main sequence triple system T Tau, as well as the first resolved medium-resolution spectra of the close pair T Tau S. At the time of our observations, the tight binary had a 13 AU projected separation and showed significant motion since its discovery, three years before. The orbit cannot be strongly constrained yet, but the observed m...

Pictures can be drawn by hand, or imaged by optical means. Over time, pictures have changed from being rare and unique to ubiquitous and common. They have changed from treasures to transients. This paper summarizes many picture technologies, and discusses their dynamic range, their color and tone-scale rendering and their spatial image processing. High Dynamic Range (HDR) image capture and disp...

PURPOSE Distant objects are often obscured as a result of wavelength-dependent scattering in the atmosphere. This scattered light, which is mostly short-wave, effectively forms a veiling luminance (or background light) against which a target must be detected and discriminated. The macular pigment (MP) carotenoids could reduce the effective background intensity by selectively filtering out short...