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...

To evaluate the effects of filtering short wavelength light on visual performance under intense light conditions among pseudophakic patients previously implanted with a clear intraocular lens (IOL). This was a patient-masked, randomized crossover study conducted at 6 clinical sites in the United States between September 2013 and January 2014. One hundred fifty-four bilaterally pseudophakic pati...

Three experiments were conducted to investigate the effects of adults aging upon the legibility of simulated symbol highway signs. Each experiment employed a different set of lighting conditions: (1) daytime luminance, (2) nighttime luminance, and (3) nighttime luminance with glare. Young (ages 18-25) and middle-aged (ages 40-55) observers demonstrated small reductions in legibility when lumina...

A perceptual experiment was conducted to measure the visibility of black-level differences in the proximity of a bright glare source. In a controlled viewing environment, visual difference thresholds were adaptively measured using dark, shadow-detail images shown on a high dynamic range liquid crystal display while an external LED lamp was used to induce intra-ocular glare over a small range of...

Many research studies have proved neural networks as a viable alternative to statistical models for classification tasks. However, compared with statistical models, neural networks have had the drawback of being unable to explain its classification logic until the development of rule extraction algorithms from trained neural networks. This research attempts to compare the results of the rule ex...

This study aims to develop a prediction model evaluate the visual environment based on system. In this paper, in order systematically investigate characteristics field of discomfort glare, it was reported relationship between borderline comfort and discomfort1) (BCD) luminance experimental variables which background luminance, solid angle eccentric angle. Furthermore, relationship, characterist...

Subjective and autonomic responses to visual stimulation and facial pain were investigated in 10 migraine sufferers and 21 'non-headache' control subjects. Ratings of glare- and light-induced pain were greater in migraine sufferers than control subjects. In migraine sufferers, glare ratings increased during painful mechanical stimulation of the nasal ala, the side of the nose and the back of th...

Buildings have an impact on the environment at a macroscale in terms of the resources that they use. But they also have an impact in the microclimate of their immediate surroundings. One such building is the Walt Disney Concert Hall, designed by Frank Gehry. It is a landmark, scintillating building, in more ways than one. Occupants of surrounding buildings have complained of elevated temperatur...