The trends of Personal Rapid Transit (PRT) and Automated Highways are converging. The result may be a new transportation mode built around robotic vehicles. This paper outlines how technology can transform transportation, making it more convenient, safer, more sustainable and less subject to congestion. Such a system could utilize existing infrastructure, but split highway lanes in half with ve...

The National Physical Laboratory, Queens Road, Teddington, Middlesex, TWll OLW, United Kingdom An intercomparison of radiance temperature scales lias been performed by the National Physical Laboratory (NPL) and the National Institute of Standards and Technology (NIST) using a standard transfer pyrometer operating at a wavelength of approximately 1000 nm. It was found that the radiance temperatu...

Interacting with environments exhibiting the subtle lighting effects found in the real world gives designers a better understanding of the scene’s structure by providing rich visual cues. The major hurdle is that global illumination algorithms are too inefficient to quickly compute their solutions for reasonably sized environments. When motion is allowed within the environment, the problem beco...

The time complexity of Monte Carlo radiosity is discussed, and a proof is given that the expected number of rays required to produce a statistical radiosity solution below a speci ed variance for N zones is O(N ). A satisfactory solution is de ned to be one in which the variance of radiance estimates for each zone is below a prede ned threshold. The proof assumes that the radiance is bounded, a...

Clear daytime skies persistently display a subtle local maximum of radiance near the astronomical horizon. Spectroradiometry and digital image analysis confirm this maximum's reality, and they show that its angular width and elevation vary with solar elevation, azimuth relative to the Sun, and aerosol optical depth. Many existing models of atmospheric scattering do not generate this near-horizo...

The long-term goal of the CoBOP program, of which this project is a part, is to gain a better understanding of the sources, nature, and variability of upwelling radiance in shallow water. This will include both magnitude and spectral characteristics of the radiance. An additional goal is to understand the relationship of coral fluorescence to environmental stress and the possibility for using i...

Citation: Rêve-Lamarche A-H, Alvain S, Racault M-F, Dessailly D, Guiselin N, Jamet C, Vantrepotte V and Beaugrand G (2017) Estimation of the Potential Detection of Diatom Assemblages Based on Ocean Color Radiance Anomalies in the North Sea. Front. Mar. Sci. 4:408. doi: 10.3389/fmars.2017.00408 Estimation of the Potential Detection of Diatom Assemblages Based on Ocean Color Radiance Anomalies in...

We consider the problem of estimating the shape and radiance of an object from a calibrated set of views under the assumption that the reflectance of the object is non-Lambertian. Unlike traditional stereo, we do not solve the correspondence problem by comparing image-to-image. Instead, we exploit a rank constraint on the radiance tensor field of the surface in space, and use it to define a dis...

The principal objective of our project is to measure wave-induced fluctuations in underwater light field under various sea-surface boundary conditions. The specific objectives include the characterization of wave-induced fluctuations in downwelling irradiance and radiance as a function of various environmental parameters such as wind/wave conditions, sky radiance distribution, direction of radi...

Density estimation on the tangent plane (DETP) is a density estimation technique for global illumination. This technique is based on Photon Maps and provides increased accuracy when the surfaces are not locally smooth or continuous. However, the performance of the technique is limited by the large number of ray-disc intersections needed. Some optimizations which increase the performance of DETP...