Lighting design is an important element of scene composition. Designers use lighting to influence viewers’ perception by evoking moods, directing their gaze to important areas, and conveying dramatic tension. Lighting is a very time consuming task; designers typically spend hours manipulating lights’ colors, positions, and angles to create a lighting design that accommodates dramatic action and...

This paper presents a design for intelligent control system of scene adaptive semiconductor lighting. The new design contains the host computer and the terminal in a control network. The lighting effect patterns are edited by the software on the host computer, then the lighting scene data is transported to the terminal through network. The terminal is a sub-controller based on the embedded syst...

All images are highly ambiguous, and to perceive 3-D scenes, the human visual system relies on assumptions about what lighting conditions are most probable. Here we show that human observers' assumptions about lighting diffuseness are well matched to the diffuseness of lighting in real-world scenes. We use a novel multidirectional photometer to measure lighting in hundreds of environments, and ...

Lighting practitioners and laypeople alike believe that the quality of the luminous environment can influence task performance, comfort, and well-being. There is mounting concern that the quality of the lit environment will decline in parallel to lighting energy use as energy codes and standards come into effect; however, there is no consensus about what constitutes good lighting quality. Broad...

It is a matter of shame for all of us that even after 55 years of independence there are 63 % of total rural households in India which use only kerosene for lighting. Majority of the kerosene lamps are hurricane type lamps, which produce very poor light of about 60-70 lumens. Similarly, rural areas in India use about 180 million tons of biomass fuel for cooking through very inefficient and smok...

The ASSIST recommends program has actively promoted application-specific methods for testing and evaluating LED lighting technology to allow for easy comparison with traditional lighting. Recent work has produced alternative methods for evaluating outdoor lighting, including parking lot luminaires and the visual effectiveness of lighting.

This paper presents a new method for the simultaneous estimation of lighting direction and shape from shading. The method estimates the shape and the lighting direction using a two step iterative process. We assume an initial (possibly incorrect) estimate of the lighting position. A stiff deformable model is then fitted to the image, assuming this lighting position. Next, a least-squares estima...

In order to solve the problems of large energy consumption existing in tunnel lighting control system, an automatic control system of tunnel lighting is designed based on stepless control method. The tunnel lighting control model is established based on “Specifications for Design of Ventilation and Lighting of Highway Tunnel (China)”. Simulation of tunnel lighting control based on the establish...

General illumination using LEDs has enabled designers to have precise control of the intensity and color of an illuminated area. In this work, I investigate how these systems can dynamically adjust to create optimal lighting conditions in the built environment. By incorporating environmental feedback into a system control loop, i.e., illuminance or luminance measurements, the precise intensity ...