Rats entrained to a 7 A.M.:7 P.M. lighting cycle had one eye patched and then were placed in either constant light or in a 2 A.M.:2 P.M. lighting cycle. In both cases, the patched eyes maintained the original pattern of rod outer segment (ROS) disc shedding, whereas the open eyes responded to the ambient lighting conditions. When the optic nerves were severed at the optic chiasm, the shedding r...

This work presents an approach to render appropriate shadows with Image Based Lighting in Augmented Reality applications. To approximate the result of environment lighting and shadowing, the system uses a dome of shadow casting light sources. The color of each shadow is determined by the area of the environment behind the casting light source. As a result it is possible that changes in the ligh...

Properly lighting virtual objects and having them cast shadows on each other based on dynamic lighting conditions is a computationally hard challenging Even more complex are the issues raised when this must be done in a Mixed Reality environment where virtual objects and virtual light interact with real objects and real light. This paper presents several interactive-time algorithms to enable in...

Lighting conditions of eight schoolrooms were investigated in order to obtain the appropriate lighting standards for schoolroom. The following results were obtained. 1) Lighting standards, which are applicable to schoolroom, were proposed by introducing a partial modification of Moon and Spencer's standards. 2) Generally, the values of delos, which is introduced by Moon and Spencer, were insuff...

This paper describes an innovative Energy Consumption Management System (ECMS) that is aimed at rationalizing the end use of the electrical energy in tunnel lighting. It is based on agent technologies and Power Line Communications to achieve lowest consumption lighting conditions in an optimal way. Depending on the type of application, the system would lead also to reduced installation and runn...

UNLABELLED Current older adult capability data-sets fail to account for the effects of everyday environmental conditions on capability. This article details a study that investigates the effects of everyday ambient illumination conditions (overcast, 6000 lx; in-house lighting, 150 lx and street lighting, 7.5 lx) and contrast (90%, 70%, 50% and 30%) on the near visual acuity (VA) of older adults...

Color detection can be seriously affected by lighting conditions and other variations in the environment. The robot vision systems need to be recalibrated as lighting conditions change, otherwise they fail to recognize objects or classify them incorrectly. This paper describes experiments toward object recognition under different lightning conditions. We propose to train the vision system to re...

BACKGROUND trans-Resveratrol (t-Res) is a natural phenolic compound with various biological activities such as antioxidant, anticancer, cancer chemopreventive, cardioprotective, and neuroprotective. OBJECTIVES There is no comprehensive study about the stability of t-Res in human plasma. With respect to extensive use of t-Res in clinical trials and pharmacokinetic studies, in this study, we ai...

Smartphone image-based sensing of microfluidic paper analytical devices (μPADs) offers low-cost and mobile evaluation of water quality. However, consistent quantification is a challenge due to variable environmental, paper, and lighting conditions, especially across large multi-target μPADs. Compensations must be made for variations between images to achieve reproducible results without a separ...

When we look at images taken from outdoor scenes, much of the information perceived is due to the ligthing conditions. In these scenes, the solar beams interact with the atmosphere and create a global illumination that determines the way we perceive objets in the world. Lately, exploration of the sky like the main illuminance component has began to be explored in Computer Vision. Some of these ...