The proposed method accelerates the computation of multiple interreflections in non-diffuse environments or the solution of the rendering equation. The method is suited for closed environments. It is a generalization of the “constant radiosity step” introduced for diffuse environments and does not require geometrical or visibility information, nor the calculation of form factors. A constant rad...

We present a new approach for accelerated global illumination computation in scenes with glossy surfaces. Our algorithm combines sparse illumination computation used in the radiance caching algorithm with BRDF importance sampling. To make this approach feasible, we extend the idea of lazy illumination evaluation, used in the caching approaches, from the spatial to the directional domain. Using ...

In the narrow Wall Street interpretation, financial engineering refers to the creation of more specialized financial securities out of more fundamental assets such as collections of stocks, bonds, currencies, or mortgages. Used this way, the term now inevitably evokes memories of the mortgage pool “tranches” that became famous during the financial crisis of 2008–2009. In this instance, the paym...

We present a novel way of approaching image-based 3D reconstruction based on radiance fields. The problem volumetric is formulated as non-linear least-squares and solved explicitly without the use neural networks. This enables solvers with higher rate convergence than what typically used for networks, fewer iterations are required until convergence. volume represented using grid voxels, scene s...

The radiance and irradiance calibration of large field-of-view scanning and imaging radiometers for remote sensing and surveillance applications has resulted in the development of novel calibration techniques. One of these techniques is the employment of large-area integrating sphere sources as radiance or irradiance secondary standards. To assist the National Aeronautical and Space Administrat...

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...

Computing global illumination in complex scenes is even with todays computational power a demanding task. In this work we propose a novel irradiance caching scheme that combines the advantages of two state-of-the-art algorithms for high-quality global illumination rendering: lightcuts, an adaptive and hierarchical instant-radiosity based algorithm and the widely used (ir)radiance caching algori...

High dynamic range imaging aims at creating an image with a range of intensity variations larger than the range supported by a camera sensor. Most commonly used methods combine multiple exposure low dynamic range (LDR) images, to obtain the high dynamic range (HDR) image. Available methods typically neglect the noise term while finding appropriate weighting functions to estimate the camera resp...

Classical ray-tracing algorithms compute radiance returning to the eye along one or more sample rays through each pixel of an image. The output of a ray-tracing algorithm, although potentially photoreal-istic, is a two-dimensional quantity { an image array of radiance values { and is not directly useful from any viewpoint other than the one for which it was computed. This paper makes several co...

This paper proposes a method of interactive global illumination rendering with spatial-variant dynamic materials under complex illumination. With the spatial-variant dynamic materials, the materials of the scene can be changed while rendering, and the changes to different parts of an object can be different. The non-linear relationship between materials and out-going radiance prevents users fro...