Image systems simulation plays an important role in the design and evaluation of a range ofdevices, from large-scale remote sensing to the smallest biomedical imaging instruments. Wereview principles of image systems simulation that are applicable to the design and evaluationof consumer imaging devices. In this application the main goal is to help engineering teammembers measure...

There are number of software environment available to conduct lighting simulations to support researchers and designers. This paper compares and analyses performance of four lighting simulation programs (AGI32, DIALux, RADIANCE and RELux), which are dedicated to provide physically accurate lighting calculation. Along with the evaluation of modeling ability and software features two significant ...

[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...

We present a new method for the simulation of global illumination by utilization of a photon map. It uses an advanced radiance estimation which, in contrast to classical nearest neighbor area estimation, does not assume that the nearest neighbor photons lie in one plane or that they are uniformly distributed around the illuminated point. This allows us to correcly handle indirect illumination, ...

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...