نتایج جستجو برای: radiance simulation
تعداد نتایج: 562196 فیلتر نتایج به سال:
The space-based infrared observatory of aircraft in the air has advantages wide-area, full-time, and passive detection. optical design parameters for sensors strongly rely on target observed radiation, but there is still a lack insight into causes observation properties impact instrument performance. A simulation model characteristics was constructed this provision, coupling radiance with backg...
Knowing to what extent applicant reactions are related to stable individual differences and not only to characteristics of a selection procedure is important for the design and administration of the selection procedure and for dealing with applicants. The aim of this study was to explore relationships between individual differences (Big Five, core selfevaluations, trait affectivity, and general...
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 ...
A Neural Network Algorithm for the Retrieval of Temperature Profiles from Gome Radiance Measurements
The thermal structure of the atmosphere has a relevant influence on the circulation mechanisms of air masses and on the distribution of trace gases. In this paper, a neural network algorithm aiming at the real-time retrieval of temperature profiles from the radiance measurements provided by the instrument GOME boarded on the ESA satellite ERS-2 will be illustrated, and the obtained results will...
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...
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...
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