This work introduces RadVR, a virtual reality tool for daylighting analysis that simultaneously combines qualitative assessments through immersive real-time renderings with quantitative physically correct simulations in 6DOF environment. By taking 3D building model material properties as input, RadVR allows users to (1) perform physically-based via Radiance, (2) study sunlight different hours-o...

In this paper we propose a jump-diffusion type model which recovers the main characteristics of electricity spot price dynamics in the Nordic market, including seasonality, mean-reversion and spiky behavior. We show how the calibration of the market price of risk to actively traded futures contracts allows for efficient valuation of Nord Pool's Asian-style options written on the spot electricit...

[1] Validation of infrared satellite instruments, after they have been launched into orbit, has traditionally relied on views of the relatively warm sea surface. The Antarctic Plateau provides a complementary validation target from space because it is also homogeneous over large areas, yet it is relatively cold. During summer, cloud-free conditions occur often and the atmospheric humidity is ve...

From a practical point of view, daylighting in architecture uses the visible spectrum of solar energy directly and efficiently. It offers potential to decrease the energy consumption of a building and enhance the aesthetics of indoor spaces. Optimisation of daylighting can be roughly divided into two approaches, or a combination of the two in one project: First, the shape of the building can be...

From a practical point of view, daylighting in architecture uses the visible spectrum of solar energy directly and efficiently. It offers potential to decrease the energy consumption of a building and enhance the aesthetics of indoor spaces. Optimisation of daylighting can be roughly divided into two approaches, or a combination of the two in one project: First, the shape of the building can be...

HDR Radiance Maps have being widely studied in the last years. In this work we recover HDR Radiance Maps from photographs, using only two shots of the same scene exposed diferently. We also recover film response curves to visualize HDR color images as if they were taken with the photographic film. All the operations used to reconstruct the HDR Radiance Map work on image histograms, the presence...

The radiance distribution of light scattered by randomly oriented ice crystals differs fundamentally from the radiance distribution of light scattered by spherical raindrops or by preferentially oriented ice crystals. A formalism for light scattering by randomly oriented crystals is given and applied to four examples, among them the circular 22° halo and the antisolar halospot, the latter being...

We present TensoRF, a novel approach to model and reconstruct radiance fields. Unlike NeRF that purely uses MLPs, we the field of scene as 4D tensor, which represents 3D voxel grid with per-voxel multi-channel features. Our central idea is factorize tensor into multiple compact low-rank components. demonstrate applying traditional CANDECOMP/PARAFAC (CP) decomposition – factorizes tensors rank-o...

The Ocean Color Monitor (OCM) provides radiance measurements in eight visible and near-infrared bands, similar to the Sea-viewing Wide Field-of-View Sensor (SeaWiFS) but with higher spatial resolution. For smallto moderate-sized coastal lakes and estuaries, where the 1 × 1 km spatial resolution of SeaWiFS is inadequate, the OCM provides a good alternative because of its higher spatial resolutio...