We propose a lighting system which adjusts lighting colors. The lighting system adjusting colors is a system that provides required illuminance and lighting color at an appropriate location. This system consists of many intelligent lighting with RGB fluorescent lamps, many chroma sensors and an electric power meter. These equipments are connected to a network. The chroma sensor can measure the ...

This paper describes the development of a new tool called hdrscope that enables users to perform qualitative and quantitative lighting analysis via perpixel methods. Using a simulated and photographically captured lab space as a case study, per-pixel analysis methods are described, challenges associated with per-pixel lighting analysis are discussed, and hdrscope analysis techniques are demonst...

Lighting is an essential tool in surgery. Altering the spectral distribution of the lighting can heighten visual contrast between anatomical features of interest and the surrounding tissues. Due to the difficulty in assessing lighting spectral distributions on surgical scenes, we use image segmentation algorithm as a means of testing the relative merits of model spectral distribution for surgic...

temporal cortex Summary. Neural mechanisms underlying recognition of objects must overcome the changes in an object's appearance caused by inconsistent viewing conditions, particularly those that occur with changes in lighting. In humans, lesions to the posterior visual association cortex can impair the ability to recognize objects and faces across different lighting conditions. Inferotemporal ...

Artificial lighting is strongly associated with urbanisation and is increasing in its extent, brightness and spectral range. Changes in urban lighting have both positive and negative effects on city performance, yet little is known about how its character and magnitude vary across the urban landscape. A major barrier to related research, planning and governance has been the lack of lighting dat...

Thirty-two crossbred boars (Hampshire X Duroc X Yorkshire) were reared under natural lighting (35 lx) or supplemental lighting (1,400 lx) beginning at 4 wk of age. Boars received supplemental lighting from six 40-W fluorescent bulbs between 0530 and 2030 in a nursery unit. From 9 to 32 wk of age, boars received either natural lighting (30 lx) or supplemental lighting (100 lx) in a growing-finis...

Image-based relighting (IBL) has become a popular research topic in both computer graphics and signal processing. IBL is the technique that renders images of a scene under different lighting conditions without prior knowledge of the object geometry and surface properties in the scene. Simply put, IBL collects images of the scene under all possible lighting conditions and process these images to...

Lighting design plays an important role in interactive 3-D training environments; it influences scene perception, scene understanding, attention, visual search, presence, immersion, and emotional involvement. Although there are several research projects that measured the impact of lighting in 3-D environments, little research focused on the development of new lighting design models to enhance t...

Inverse lighting is a technique for recovering the lighting environment of a scene from a single image of an object. Conventionally, inverse lighting assumes that a pixel value is proportional to radiance value, i.e. the response function of a camera is linear. Unfortunately, however, consumer cameras usually have unknown and nonlinear response functions, and therefore conventional inverse ligh...

As LED lighting technology becomes omnipresent, lighting environments become more advanced and allow for adjusting various parameters such as color, brightness, and saturation. This poses challenges for interaction design, particularly when lighting environments are shared between multiple users. This paper presents “Vuur”: a shared physical interface with which users can control lighting in me...