Transportation problems of large urban conurbations inspire search for new transportation systems, that meet high environmental standards, are relatively cheap and user friendly. The latter element also includes the needs of disabled and elderly people. This article concerns a new transportation system PRT - Personal Rapid Transit. In this article the attention is focused on the analysis of the...

While ray tracing is highly parallelizable in concept, the Radiance suite of programs for architectural global illumination simulation was written for serial execution and makes use of certain heuristic techniques that are not easily performed in parallel environments. It uses irradiance caching to store and reuse the results of expensive indirect irradiation computations. The irradiance cache ...

The prediction of spectral water leaving radiance and remote sensing reflectance from a coupled physical/ecological/optical simulation is one of the goals of the ONR Hyperspectral Coastal Ocean Dynamics Experiment (HyCODE). This goal requires coupling a high-resolution circulation model (ROMS) to provide realistic physical forcing to a dynamic ecological model that produces depth-dependent dist...

We describe a suite of software tools for image system simulation. The tools model the three-dimensional scene radiance, image formation by the optics, sensor transduction, image processing and display rendering.

The primary focus of this research is to integrate dynamical processes of wave and turbulence in the upper ocean surface boundary layer (SBL) into a physics-based computational capability for the timedependent radiative transfer (RT) in the ocean. The combined capability we develop will provide direct forward predictions of the radiance distributions in the upper ocean. We aim to use this capab...

The primary focus of this research is to integrate dynamical processes of wave and turbulence in the upper ocean surface boundary layer (SBL) into a physics-based computational capability for the timedependent radiative transfer (RT) in the ocean. The combined capability we develop will provide direct forward predictions of the radiance distributions in the upper ocean. We aim to use this capab...

ADEOS-II will be launched in the near future. It's main feature is to collocate many remote sensing instruments in the same platform. Within those sensors, Global Image (GLI) is considered to be a main sensor which will play a key role. In order to understand the characteristics of future GLI images of ocean color, we have first introduced the simulation models briefly, and simulated typical ca...

We introduce the Tensor Tree representation for bidirectional scattering distribution functions (BSDFs), a variableresolution data structure designed to minimize storage and computation. We offer a method for reducing fullresolution BSDF data into this format, and relate techniques for the efficient generation of uniformly weighted Monte Carlo samples. The Tensor Tree BSDF representation has be...

The prediction of inherent optical properties [IOPs] and water-leaving radiance [Lw] in coastal waters over a 5 to 10 day time horizon will require a numerical simulation that accurately forecasts the physical, ecological, and optical environment. Critical to the ecological and optical forecast is the ability to directly compare the water-leaving radiance field to those being collected by aircr...

[1] Spectrally resolved outgoing radiance is a potentially powerful tool for testing climate models. To show how it can be used to evaluate the simulation of cloud variability, which is the principal uncertainty in current climate models, we apply spectral empirical orthogonal function (EOF) analysis to satellite radiance spectra and synthetic spectra derived from a general circulation model (G...