the first step in evaluating the visual performance and energy efficiency provided by daylight, requires an accurate estimation of the amount of daylight entering a building. the atrium concept allows the exploitation of daylight by bringing natural light into the center of the buildings, thus enhancing even a more distribution of daylight. daylight reception through an atrium is particularly b...

Daylight in buildings is both aesthetically pleasing and a sustainable means of offsetting costs for space conditioning and electric lighting. However, poor use of daylight can cause glare that impedes worker productivity. Traditional means of predicting lighting levels for indoor spaces through simulation are timeconsuming, which inhibits exploration of daylighting potential in new buildings. ...

Illumination for mixed reality consists of simulating the illumination of 3D scenes composed with real and virtual 3D objects. Current research into illumination methods for mixed reality focuses on im­ proving the quality of the simulated illumination, while assuming that the required input data, the scene geometry and radiance, can be accurately acquired. This thesis provides methods that red...

The sea surface is an important background of sea surface targets and its infrared radiation characterization is the basis of infrared detection and recognition of sea surface targets. The model of linear wave theory and JONSWAP spectrum was used to achieve shape and display of ocean wave. Real-time infrared characterization simulation model was established for the sea surface, considering the ...

We propose a progressive radiance estimation engine (PREE) hardware architecture to accelerate the processing of the progressive photon mapping with satisfactory graphic quality. The presented PREE architecture consists of four progressive radiance estimation units (PREUs), approximate full task schedule-oriented hit-point update operation controller (AFTSO-HpUOC) and approximate data-independe...

The design of a lighting environment is a complex task because of the need to satisfy multiple criteria, which are often in conflict with each other, for example, an adequate level of illumination needs to be maintained in a space to satisfy the requirements for various tasks, while not sacrificing illuminance uniformity or introducing glare and discomfort. The position of luminaires can impact...

This study describes the development and validation of a Radiance model for a translucent panel. Using goniophotometer data combined with integrating sphere measurements, optical properties of the panel were derived and converted into a Radiance model using the trans and transdata material types. The Radiance model was validated in a full scale test room with a facade featuring the translucent ...

The Display Simulation Toolbox (DST) is an integrated suite of software tools that help the user characterize the key properties of display devices and predict the radiance of displayed images. Assuming that pixel emissions are independent, the DST uses the sub-pixel point spread functions, spectral power distributions, and gamma curves to calculate display image radiance. For LCD displays, the...

The paper presents a flexibility of management of vehicles in Personal Rapid Transit (PRT) network. The algorithm used for delivering empty vehicles for waiting passengers is based on multiparameter analysis. Due to its distributed construction, the algorithm has a horizon parameter, which specifies the maximum distance between stations the communications is performed. Every decision is made ba...