The purpose of this study is to check if LED lighting can be used as general lighting and examine the color rendering property of full color RGB LED lighting. CRI is one of the important properties of evaluating lighting. However the present CRI does not fully evaluate LED lightings. Firstly, the performance of a simple task was compared other than comparing CRI values for different lighting. F...

We describe a photo forensic technique based on detecting inconsistencies in lighting. This technique explicitly measures the 3-D lighting properties for individual people, objects, or surfaces in a single image. We show that with minimal training, an analyst can accurately specify 3-D shape in a single image from which 3-D lighting can be automatically estimated. A perturbation analysis on the...

The traditional method of controlling street lamp lighting could not adjust the brightness of bulbs, while the management and maintenance had to rely on labour patrol. The combined ZigBee and GPRS technology with LED lights is an advanced controlling method for street lighting, particularly resolves the issues in monitoring and energy consumption. This paper presents a general system that incor...

Consideration of the literature concerning street lighting effects on crime yields the following conclusions: (1) Precisely targeted increases in street lighting generally have crime reduction effects. (2) More general increases in street lighting seem to have crime prevention effects, but this outcome is not universal Older and U.S. research yield fewer positive results than more recent U.K. r...

In the last years, a lot a research have been done in the field of inverse lighting (and, in a neighbouring domain: inverse rendering – or relighting). However the proposed tools for inverse lighting are not intuitive or are too limited. Our aim is to present a framework for a declarative specification of the lighting of a scene. The concepts and properties relevant to a qualitative description...

In accordance with the specifications for the design of the gas station lighting system, the original lighting system was transformed into the overall solar-powered LED lighting system. The original lighting was replaced by using the same illumination LED lamps. Calculations were made to determine the optimum tilt angle of solar components. Based on the reasonable LOLP rate, solar module and ba...

It is commonly believed that humans exhibit lighting invariant object recognition. Here we present psychophysical evidence to the contrary. We examine the perception of qualitative local shape from shading and find that significant variations occur as a function of the lighting. These variations have two logically distinct causes: first, there are inherent ambiguities between shape and shading ...

With the kind permission of Leisure and Cultural Services Department (LCSD), Energy Efficiency Office (EEO) of Electrical and Mechanical Services Department (EMSD) completed a pilot lighting project in 2002 at Kowloon Bay Indoor Games Hall (KBIGH). The new lighting system made use of the latest T5 lighting technology for illuminating the high ceiling games hall. As compared with the existing hi...

During the past decade, residential consumers’ adoption of energy-efficient lighting has increased slowly in the United States. To identify residential consumers’ attitudes and behaviors toward the adoption of energy-efficient lighting, this study examined gender differences in (1) residential consumers’ environmental behaviors in relation to lighting practice and (2) background variables of en...