Relevant bibliographies by topics / Radiance

Academic literature on the topic 'Radiance'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 February 2023

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Journal articles on the topic "Radiance"

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Lei, Kaichao, Xin Ye, Nan Xu, Shuqi Li, Yachao Zhang, Yuwei Wang, Zhiwei Liu, and Zhigang Li. "Calibration and Validation of a Transfer Radiometer Applied to a Radiometric Benchmark Transfer Chain." Photonics 10, no. 2 (February 7, 2023): 173. http://dx.doi.org/10.3390/photonics10020173.

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A transfer radiometer (TR) applied to an on-orbit radiometric benchmark transfer chain has been developed, which can achieve the high-precision transformation of power and radiance responsivity and transmit the radiance responsivity traced to the cryogenic radiometer to remote sensors, such as an imaging spectrometer, so that the on-orbit remote sensors can achieve the high accuracy calibration of 10−3 magnitude. Radiance comparison experiments between the TR and the radiance standard of the National Institute of Metrology (NIM) were carried out to demonstrate the absolute accuracy of the TR radiance measurement. At 780.0 nm and 851.9 nm, the relative measurement uncertainties of the TR filter-free channel were 0.24% (k = 1). Additionally, the radiance measurement results of the TR were consistent with those of the NIM radiance meter, and the radiance measurement results’ relative differences between the TR and the NIM radiance meter were approximately 0.04% at 780.0 nm and 851.9 nm. The relative measurement uncertainties of TR 780.4 nm and 851.8 nm filter channels were 0.89% (k = 1) and 0.84% (k = 1), respectively. Additionally, the radiance measurement results of the TR 780.4 nm and 851.8 nm filter channels were consistent with the radiances of the integrating sphere source calibrated by the NIM at 780.4 nm and 851.8 nm; the relative differences between the radiances measured by the two TR filter channels and the radiances of the integrating sphere source itself were better than 0.56%. This proved that the TR could measure the monochromatic source radiance with a measurement uncertainty of 0.24% and measure the broadband source radiance with a measurement uncertainty better than 0.89%. The TR can be applied to the radiometric benchmark transfer chain to improve the measurement precision of on-orbit remote-sensing instruments.
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Kleiv, Ø., A. Folkestad, J. Høkedal, K. Sørensen, and E. Aas. "Estimation of upward radiances and reflectances at the surface of the sea from above-surface measurements." Ocean Science Discussions 12, no. 3 (June 12, 2015): 1051–82. http://dx.doi.org/10.5194/osd-12-1051-2015.

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Abstract. During four field days in the years 2009–2011, 22 series of measurement were collected in the Inner Oslofjord. The data consist of recordings of spectral sub-surface and above-surface nadir radiances, as well as spectral downward irradiance in air. The studied wavelengths are 351, 400 nm and the 10 former MERIS channels in the range 413–754 nm. The water-leaving radiance and the reflected radiance at the sea surface can be determined from the measured nadir radiances in water and air. A simpler and much faster method, which determines the radiance reflectance at the surface as well as the water-leaving and reflected radiances solely from the measurements of upward nadir radiance and downward irradiance in air, is presented. A comparison between the quantities determined by the two methods shows that the average relative deviations between their results are less than or equal to 15% for the reflected radiance, at the studied wavelengths. The average relative deviations of the water-leaving radiance at 560 nm is 24%. We consider this to be acceptable uncertainties for a first check of satellite products in coastal waters.
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Kleiv, Ø., A. Folkestad, J. Høkedal, K. Sørensen, and E. Aas. "Estimation of upward radiances and reflectances at the surface of the sea from above-surface measurements." Ocean Science 11, no. 5 (October 2, 2015): 779–88. http://dx.doi.org/10.5194/os-11-779-2015.

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Abstract. During 4 field days in the years 2009–2011, 22 data sets of measurements were collected in the inner Oslofjord, Norway. The data consist of recordings of spectral nadir radiances in air and water as well as spectral downward irradiance in air. The studied wavelengths are 351, 400, 413, 443, 490, 510, 560, 620, 665, 681, 709 and 754 nm. The water-leaving radiance and the reflected radiance at the sea surface have been obtained from the measured nadir radiances in air and water, where the latter radiance has been extrapolated upwards to the surface. For comparison we present a simpler and much faster method that determines the water-leaving and reflected radiances solely from above-surface measurements of upward nadir radiance and downward irradiance. This new method is based on an assumption about similarity in spectral shape of the radiance reflected at the surface, and it makes use of the small ratio between water-leaving and reflected radiances at 351 and 754 nm in the Oslofjord. A comparison between the quantities determined by the two mentioned methods shows that the average relative deviations between their results are less than or equal to 15 % for the reflected radiance, at the studied wavelengths. The average relative deviation of the water-leaving radiance at 560 nm is 24 %. These results are obtained for a cloudiness range of 1–8 oktas (12.5–100 %) and solar zenith angles between 37 and 51°. We consider these to be acceptable uncertainties for a first check of satellite products in the inner Oslofjord.
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Antoine, David, André Morel, Edouard Leymarie, Amel Houyou, Bernard Gentili, Stéphane Victori, Jean-Pierre Buis, et al. "Underwater Radiance Distributions Measured with Miniaturized Multispectral Radiance Cameras." Journal of Atmospheric and Oceanic Technology 30, no. 1 (January 1, 2013): 74–95. http://dx.doi.org/10.1175/jtech-d-11-00215.1.

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Abstract Miniaturized radiance cameras measuring underwater multispectral radiances in all directions at high-radiometric accuracy (CE600) are presented. The camera design is described, as well as the main steps of its optical and radiometric characterization and calibration. The results show the excellent optical quality of the specifically designed fish-eye objective. They also show the low noise and excellent linearity of the complementary metal oxide semiconductor (CMOS) detector array that is used. Initial results obtained in various oceanic environments demonstrate the potential of this instrument to provide new measurements of the underwater radiance distribution from the sea surface to dimly lit layers at depth. Excellent agreement is obtained between nadir radiances measured with the camera and commercial radiometers. Comparison of the upwelling radiance distributions measured with the CE600 and those obtained with another radiance camera also shows a very close agreement. The CE600 measurements allow all apparent optical properties (AOPs) to be determined from integration of the radiance distributions and inherent optical properties (IOPs) to be determined from inversion of the AOPs. This possibility represents a significant advance for marine optics by tying all optical properties to the radiometric standard and avoiding the deployment of complex instrument packages to collect AOPs and IOPs simultaneously (except when it comes to partitioning IOPs into their component parts).
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Su, W., J. Corbett, Z. Eitzen, and L. Liang. "Next-generation angular distribution models for top-of-atmosphere radiative flux calculation from the CERES instruments: methodology." Atmospheric Measurement Techniques Discussions 7, no. 8 (August 27, 2014): 8817–80. http://dx.doi.org/10.5194/amtd-7-8817-2014.

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Abstract. The top-of-atmosphere (TOA) radiative fluxes are critical components to advancing our understanding of the Earth's radiative energy balance, radiative effects of clouds and aerosols, and climate feedback. The Clouds and Earth's Radiant Energy System (CERES) instruments provide broadband shortwave and longwave radiance measurements. These radiances are converted to fluxes by using scene type dependent Angular Distribution Models (ADMs). This paper describes the next-generation ADMs that are developed for Terra and Aqua using all available CERES rotating azimuth plane radiance measurements. Coincident cloud and aerosol retrievals, and radiance measurements from the Moderate Resolution Imaging Spectroradiometer (MODIS), and meteorological parameters from Goddard Earth Observing System (GEOS) data assimilation version 5.4.1 are used to define scene type. CERES radiance measurements are stratified by scene type and by other parameters that are important for determining the anisotropy of the given scene type. Anisotropic factors are then defined either for discrete intervals of relevant parameters or as a continuous functions of combined parameters, depending on the scene type. Compared to the existing ADMs, the new ADMs change the monthly mean instantaneous fluxes by up to 5 W m−2 on a regional scale of 1° latitude × 1° longitude, but the flux changes are less than 0.5 W m−2 on a global scale.
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Han, Jianing, and H. Maeda. "Super-radiance-cascades and multimode super-radiance oscillations in a cold 85Rb Rydberg gas." Canadian Journal of Physics 92, no. 10 (October 2014): 1130–34. http://dx.doi.org/10.1139/cjp-2013-0236.

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We report on super-radiance-cascades and multimode super-radiance in a cold Rydberg gas. Correctly matching the super-radiant radiation and the sample size, or mode-matching, is discussed. In addition, it is shown that the spontaneous emission rate and density determine how fast super-radiance happens and whether or not the multimode super-radiance is observable. The results reported here are essential steps toward super-radiance induced plasma formation and two-photon correlations.
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Zhu, Yanqiu, George Gayno, R. James Purser, Xiujuan Su, and Runhua Yang. "Expansion of the All-Sky Radiance Assimilation to ATMS at NCEP." Monthly Weather Review 147, no. 7 (July 1, 2019): 2603–20. http://dx.doi.org/10.1175/mwr-d-18-0228.1.

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Abstract Since the implementation of all-sky radiance assimilation of the Advanced Microwave Sounding Unit-A (AMSU-A) in the operational hybrid 4D ensemble–variational Global Forecast System at NCEP in 2016, the all-sky approach has been tested to expand to the radiances of Advanced Technology Microwave Sounder (ATMS) in the Gridpoint Statistical Interpolation analysis system (GSI). Following the all-sky framework implemented for the AMSU-A radiances, ATMS radiance assimilation adopts similar procedures in quality control, bias correction, and model of observation error. Efforts have been focused on special considerations that are necessary because of the unique features of the ATMS radiances and water vapor channels, including surface properties based on fields of view size and shape, and taking care of large departures from the first guess (OmF) along coastlines and radiances affected by strong scattering. More importantly, it is shown that this work makes microwave radiance OmFs become more consistent among different sensors, and provides indications of the deficiencies in quality control procedures of the original ATMS and Microwave Humidity Sounder (MHS) clear-sky radiance assimilation. While the generalized tracer effect is noticed, the overall impact on the forecast skill is neutral. This work is included in the upcoming operational implementation in 2019.
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Liu, Quanhua, Changyong Cao, Christopher Grassotti, Xingming Liang, and Yong Chen. "Experimental OMPS Radiance Assimilation through One-Dimensional Variational Analysis for Total Column Ozone in the Atmosphere." Remote Sensing 13, no. 17 (August 27, 2021): 3418. http://dx.doi.org/10.3390/rs13173418.

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This experiment is the first ultraviolet radiance assimilation for atmospheric ozone in the troposphere and stratosphere. The experiment has provided better understanding of which observations need to be assimilated, what bias correction scheme may be optimal, and how to obtain surface reflectance. A key element is the extension of the Community Radiative Transfer Model (CRTM) to handle fully polarized radiances, which presents challenges in terms of computational resource requirements. In this study, a scalar (unpolarized) treatment of radiances was used. The surface reflectance plays an important role in assimilating the nadir mapper (NM) radiance of the Ozone Mapping and Profiler Suite (OMPS). Most OMPS NM measurements are affected by the surface reflection of solar radiation. We propose a linear spectral reflectance model that can be determined inline by fitting two OMPS NM channel radiances at 347.6 and 371.8 nm because the two channels have near zero sensitivity on atmospheric ozone. Assimilating a transformed reflectance measurement variable, the N value can overcome the difficulty in handling the large dynamic range of radiance and normalized radiance across the spectrum of the OMPS NM. It was found that the error in bias correction, surface reflectance, and neglecting polarization in radiative transfer calculations can be largely mitigated by using the two estimated surface reflectance. This study serves as a preliminary demonstration of direct ultraviolet radiance assimilation for total column ozone in the atmosphere.
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Liu, Zhiquan, Craig S. Schwartz, Chris Snyder, and So-Young Ha. "Impact of Assimilating AMSU-A Radiances on Forecasts of 2008 Atlantic Tropical Cyclones Initialized with a Limited-Area Ensemble Kalman Filter." Monthly Weather Review 140, no. 12 (December 1, 2012): 4017–34. http://dx.doi.org/10.1175/mwr-d-12-00083.1.

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Abstract The impact of assimilating radiance observations from the Advanced Microwave Sounding Unit-A (AMSU-A) on forecasts of several tropical cyclones (TCs) was studied using the Weather Research and Forecasting Model (WRF) and a limited-area ensemble Kalman filter (EnKF). Analysis/forecast cycling experiments with and without AMSU-A radiance assimilation were performed over the Atlantic Ocean for the period 11 August–13 September 2008, when five named storms formed. For convenience, the radiance forward operators and bias-correction coefficients, along with the majority of quality-control decisions, were computed by a separate, preexisting variational assimilation system. The bias-correction coefficients were obtained from 3-month offline statistics and fixed during the EnKF analysis cycles. The vertical location of each radiance observation, which is required for covariance localization in the EnKF, was taken to be the level at which the AMSU-A channels’ weighting functions peaked. Deterministic 72-h WRF forecasts initialized from the ensemble-mean analyses were evaluated with a focus on TC prediction. Assimilating AMSU-A radiances produced better depictions of the environmental fields when compared to reanalyses and dropwindsonde observations. Radiance assimilation also resulted in substantial improvement of TC track and intensity forecasts with track-error reduction up to 16% for forecasts beyond 36 h. Additionally, assimilating both radiances and satellite winds gave markedly more benefit for TC track forecasts than solely assimilating radiances.
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Jahani, Babak, Hendrik Andersen, Josep Calbó, Josep-Abel González, and Jan Cermak. "Longwave radiative effect of the cloud–aerosol transition zone based on CERES observations." Atmospheric Chemistry and Physics 22, no. 2 (January 31, 2022): 1483–94. http://dx.doi.org/10.5194/acp-22-1483-2022.

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Abstract. This study presents an approach for the quantification of cloud–aerosol transition-zone broadband longwave radiative effects at the top of the atmosphere (TOA) during daytime over the ocean, based on satellite observations and radiative transfer simulation. Specifically, we used several products from MODIS (MODerate Resolution Imaging Spectroradiometer) and CERES (Clouds and the Earth's Radiant Energy System) sensors for the identification and selection of CERES footprints with a horizontally homogeneous transition-zone and clear-sky conditions. For the selected transition-zone footprints, radiative effect was calculated as the difference between the instantaneous CERES TOA upwelling broadband longwave radiance observations and corresponding clear-sky radiance simulations. The clear-sky radiances were simulated using the Santa Barbara DISORT (DIScrete Ordinates Radiative Transfer program for a multi-Layered plane-parallel medium) Atmospheric Radiative Transfer model fed by the hourly ERA5 reanalysis (fifth generation ECMWF ReAnalysis) atmospheric and surface data. The CERES radiance observations corresponding to the clear-sky footprints detected were also used for validating the simulated clear-sky radiances. We tested this approach using the radiative measurements made by the MODIS and CERES instruments on board the Aqua platform over the southeastern Atlantic Ocean during August 2010. For the studied period and domain, transition-zone radiative effect (given in flux units) is on average equal to 8.0 ± 3.7 W m−2 (heating effect; median: 5.4 W m−2), although cases with radiative effects as large as 50 W m−2 were found.
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Dissertations / Theses on the topic "Radiance"

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Rowlett, Coleman. "Spectral Radiance." Digital Commons @ Butler University, 2018. https://digitalcommons.butler.edu/grtheses/500.

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Spectral Radiance is a concerto for alto saxophone and chamber orchestra. In this paper, the influence of Franz Schreker's Kammersymphonie on Rowlett's compositional inspiration is discussed in detail. In addition, the various compositional elements that make up the work are explained. These include elements of form, motivic development, sharing themes between movements, and harmony. Rowlett's use of these compositional elements aims to create cohesion throughout the work as a whole. The paper acts as a guide, retracing the steps taken by the composer during the composition of the concerto.
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Franke, Tobias Alexander. "The delta radiance field." Phd thesis, Technische Universität Darmstadt, 2015. http://tuprints.ulb.tu-darmstadt.de/4992/1/phd_thesis.pdf.

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The wide availability of mobile devices capable of computing high fidelity graphics in real-time has sparked a renewed interest in the development and research of Augmented Reality applications. Within the large spectrum of mixed real and virtual elements one specific area is dedicated to produce realistic augmentations with the aim of presenting virtual copies of real existing objects or soon to be produced products. Surprisingly though, the current state of this area leaves much to be desired: Augmenting objects in current systems are often presented without any reconstructed lighting whatsoever and therefore transfer an impression of being glued over a camera image rather than augmenting reality. In light of the advances in the movie industry, which has handled cases of mixed realities from one extreme end to another, it is a legitimate question to ask why such advances did not fully reflect onto Augmented Reality simulations as well. Generally understood to be real-time applications which reconstruct the spatial relation of real world elements and virtual objects, Augmented Reality has to deal with several uncertainties. Among them, unknown illumination and real scene conditions are the most important. Any kind of reconstruction of real world properties in an ad-hoc manner must likewise be incorporated into an algorithm responsible for shading virtual objects and transferring virtual light to real surfaces in an ad-hoc fashion. The immersiveness of an Augmented Reality simulation is, next to its realism and accuracy, primarily dependent on its responsiveness. Any computation affecting the final image must be computed in real-time. This condition rules out many of the methods used for movie production. The remaining real-time options face three problems: The shading of virtual surfaces under real natural illumination, the relighting of real surfaces according to the change in illumination due to the introduction of a new object into a scene, and the believable global interaction of real and virtual light. This dissertation presents contributions to answer the problems at hand. Current state-of-the-art methods build on Differential Rendering techniques to fuse global illumination algorithms into AR environments. This simple approach has a computationally costly downside, which limits the options for believable light transfer even further. This dissertation explores new shading and relighting algorithms built on a mathematical foundation replacing Differential Rendering. The result not only presents a more efficient competitor to the current state-of-the-art in global illumination relighting, but also advances the field with the ability to simulate effects which have not been demonstrated by contemporary publications until now.
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Tarigan, Jos Timanta. "Pre-computed surface radiance transfer." Thesis, Linköpings universitet, Institutionen för teknik och naturvetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-93078.

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Rendering a complex global illumination scene requires an extensive computational resource. It is hard to achieve a real time rendering of a complex object using explicit 3D information. To tackle this obstacle, many techniques have been introduced to close the gap between complex 3D scene and real time rendering. One of the proposed solutions is using an image-based rendering technique. Image-based rendering is a method to achieve the desired image by referencing the sampled image as a source. This thesis will focus on a mix between image-based rendering and geometrybased rendering. Instead of rendering directly using a global illumination method, we use a set of image, which are captured during the offline rendering. We call the firstprocess as light transport pre-calculation process. These images then treated as a texture and will be attached to the polygon during the online rendering process. Based on the viewer position, the system decides which value to attach on the polygon. This rendering process however requires a lot of calculation. Luckily, recent graphic card allows developer to exploit GPU‟s hardware by making it possible to reprogram the rendering pipeline. As a graphic dedicated hardware, GPU has a lot of advantage to do a rendering compared to CPU. For example its nature of parallel processing is an advantage considering most of rendering process is a parallel processing. Other than splitting the computational task, we also would like to see how we can use the availability of memory. This can be done by processing the scene before the rendering process took place. This thesis will discuss and implement how to split the burden of processing power by rendering a pre-calculated data for later render. Since the pre-rendered data could be huge, it is also important to discuss a compression method that can be applied in GPU architecture and fast enough to be rendered as a real time. Keywords: Pre-computed Surface Radiance Transfer, Global Illumination, BRDF, Image Based Modeling and Rendering, Real Time Rendering, GPU Programming, GLSL.
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McKenzie, Chapter Harrison Lee. "Textured Hierarchical Precomputed Radiance Transfer." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/333.

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Computing complex lighting simulations such as global illumination is a computationally intensive task. Various real time solutions exist to approximate aspects of global illumination such as shadows, however, few of these methods offer single pass rendering solutions for soft shadows (self and other) and inter-reflections. In contrast, Precomputed Radiance Transfer (PRT) is a real-time computer graphics technique which pre-calculates an object's response to potential incident light. At run time, the actual incident light can be used to quickly illuminate the surface, rendering effects such as soft self-shadows and inter-reflections. In this thesis, we show that by calculating PRT lighting coefficients densely over a surface as texture data, additional surface detail can be encoded by integrating other computer graphics techniques, such as normal mapping. By calculating transfer coefficients densely over the surface of a mesh as texture data, greater fidelity can be achieved in lighting coarse meshes than simple interpolation can achieve. Furthermore, the lighting on low polygon objects can be enhanced by drawing surface normal and occlusion data from highly tessellated, detailed meshes. By applying such data to a decimated, simplified mesh, a more detailed and visually pleasing reconstruction can be displayed for a lower cost. In addition, this thesis introduces Hierarchical PRT, which extends some surface effects, such as soft shadows, between objects. Previous approaches to PRT used a more complex neighborhood transfer scheme in order to extend these lighting effects. Hierarchical PRT attempts to capture scene information in a tree data structure which represents coarse lighting relationships between objects. Potential occlusions can be found at run time by utilizing the same spherical harmonic representation used to represent surface lighting to instead store light "filters" between scene tree nodes. Such "filters" can be combined over a set of nodes in the scene to obtain the net shadowing of an object with good performance. We present both visually pleasing results on simplified meshes using normal mapping and textured PRT and initial results using Hierarchical PRT that captures low frequency lighting information for a small number of dynamic objects which shadow static scene objects with good results.
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Buerli, Michael. "Radiance Caching with Environment Maps." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/991.

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The growing demand for realistic renderings in both film and games has led to a number of proposed solutions to the Global Illumination problem. In order to imitate natural lighting, it is necessary to gather indirect illumination of the surrounding environment for lighting computations. This is a computationally expensive problem, requiring the sampling or rasterization of the hemisphere surrounding each ray intersection, to which there is no standardized solution. In this thesis we propose a new method of approximation using environment maps for caching radiance. The proposed method leverages a voxelized scene representation for storing direct illumination and a cache of environment maps for integrating indirect illumination. By using a voxelized scene to gather indirect lighting contributions and caching these contributions spatially, we are able to achieve fast and convincing renders of large complex scenes. The result of our implementation produces images comparable to those of existing Monte Carlo integration methods with render speeds a magnitude or more faster.
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Koks, Don. "Decoherence, entropy and thermal radiance using influence functionals /." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phk798.pdf.

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Wang, Zhen. "Modeling wildland fire radiance in synthetic remote sensing scenes /." Online version of thesis, 2007. http://hdl.handle.net/1850/5787.

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Marshall, Samuel I. "Modtran radiance modeling of multi-angle worldview-2 imagery." Thesis, Monterey, California: Naval Postgraduate School, 2013. http://hdl.handle.net/10945/37669.

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Approved for public release; distribution is unlimited
The WorldView-2 satellite, launched in 2010 by DigitalGlobe, provides researchers with the ability to collect high resolution, multi-angle, 8-band multispectral imagery. This offers a unique opportunity to investigate the reflectance propertiesincluding the bidirectional reflectance distribution functionof surfaces detected from a space-based remote sensing platform. Eight images were collected over Rio de Janeiro on January 19, 2010, at approximately 1000 local time. Solar geometry during the collect remained constant while sensor geometry ranged from approximately 10 degrees off-nadir to 60 degrees off-nadir, fore and aft. To enhance understanding and provide comparison data with the multi-angle imagery data, radiance models were generated using the Moderate Resolution Atmospheric Transfer code. General models, using surface albedos ranging from 1% to 100%, and comparison models, using properties as close as possible to that found in the imagery, were built. Using data derived from all sources, variations were readily apparent that could be attributed to the multi-angle geometry of the collect, the wavelength of the light sensed and reflectance
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Bala, Kavita. "Radiance interpolants for interactive scene editing and ray tracing." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80201.

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Křivánek, Jaroslav. "Radiance caching for global illumination computation on glossy surfaces." Rennes 1, 2005. http://www.theses.fr/2005REN1S116.

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L'illumination globale est un moyen permettant de produire des images de synthèse dites photoréalistes. Elle joue un rôle encore plus important dans le cas de scènes contenant des objets en parties spéculaires, c'est à dire non parfaitement lisses. Cette thèse traite principalement du problème du calcul de l'illumination globale dans le cas de ce type de scène où les objets sont caractérisés par des réflectances de basse fréquence. Nous proposons une méthode utilisant un cache de luminance, méthode basée sur le lancer de rayon et prenant en compte les surfaces spéculaires non parfaitement lisses (ayant une rugosité microscopique) dont les réflectances possèdent des caractéristiques de basse fréquence. L'algorithme proposé exploite la variation douce de l'éclairage sur une surface en interpolant l'éclairage indirect à partir de données éparses stockées dans le cache. Notre méthode permet de générer des images de grande qualité en un temps plus court que celui obtenu avec les méthodes existantes.
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Books on the topic "Radiance"

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Scholz, Carter. Radiance. New York: Picador USA, 2002.

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Noel, Alyson. Radiance. Neuilly-sur-Seine: M. Lafon, 2011.

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Scholz, Carter. Radiance. New York: Picador USA, 2002.

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Lambert, Shaena. Radiance. Leicester: Charnwood, 2007.

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Nowra, Louis. Radiance. Sydney: Currency Press in association with Belvoir Street Theatre, 1993.

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Radiance. London: Virago, 2007.

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Osterhaus, Joe. Radiance: Poems. Lincoln, Neb: Zoo Press, 2002.

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Clark, David Aaron. Sister Radiance. New York: Rhinoceros, 1994.

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Jeremy, Robinson. Radiance: Poems. Kidderminster, England: Crescent Moon, 1992.

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Fox, Paula. Radiance descending. New York: Bantam Doubleday Dell Books for Young Readers, 1999.

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Book chapters on the topic "Radiance"

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Bährle-Rapp, Marina. "radiance, radiancy." In Springer Lexikon Kosmetik und Körperpflege, 467. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_8735.

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Gooch, Jan W. "Radiance." In Encyclopedic Dictionary of Polymers, 605. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9718.

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Langguth, Fabian, and Michael Goesele. "Radiance." In Computer Vision, 1–2. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-03243-2_526-1.

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Weik, Martin H. "radiance." In Computer Science and Communications Dictionary, 1394. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_15298.

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Langguth, Fabian, and Michael Goesele. "Radiance." In Computer Vision, 655–56. Boston, MA: Springer US, 2014. http://dx.doi.org/10.1007/978-0-387-31439-6_526.

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Langguth, Fabian, and Michael Goesele. "Radiance." In Computer Vision, 1035–36. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63416-2_526.

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Eppig, Timo. "Brightness (Radiance)." In Encyclopedia of Ophthalmology, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-35951-4_604-1.

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Christensen, Per, Eric Stollnitz, David Salesin, and Tony DeRose. "Wavelet Radiance." In Photorealistic Rendering Techniques, 295–309. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-87825-1_22.

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Eppig, Timo. "Brightness (Radiance)." In Encyclopedia of Ophthalmology, 281–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-540-69000-9_604.

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Weik, Martin H. "spectral radiance." In Computer Science and Communications Dictionary, 1631–32. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_17884.

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Conference papers on the topic "Radiance"

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Filinski, I., and T. Skettrup. "Incoherent Light Source With Radiance Comparable With Laser Radiances." In 1986 Int'l European Conf on Optics, Optical Systems, and Applications, edited by Stefano Sottini and Silvana Trigari. SPIE, 1987. http://dx.doi.org/10.1117/12.937069.

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Antunes, Nuno, Ariadne M. B. R. Carvalho, and Andrea Ceccarelli. "RADIANCE Welcome." In 2017 47th Annual IEEE/IFIP International Conference on Dependable Systems and Networks: Workshops (DSN-W). IEEE, 2017. http://dx.doi.org/10.1109/dsn-w.2017.52.

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Slusallek, Philipp, Wolfgang Heidrich, and Hans-Peter Seidel. "Radiance maps." In ACM SIGGRAPH 98 Conference abstracts and applications. New York, New York, USA: ACM Press, 1998. http://dx.doi.org/10.1145/280953.282231.

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Huang, Hung-Lung, David C. Tobin, Jun Li, Erik R. Olson, Kevin Baggett, Bormin Huang, John Mecikalski, et al. "Hyperspectral radiance simulator: cloudy radiance modeling and beyond." In Third International Asia-Pacific Environmental Remote Sensing Remote Sensing of the Atmosphere, Ocean, Environment, and Space, edited by Hung-Lung Huang, Daren Lu, and Yasuhiro Sasano. SPIE, 2003. http://dx.doi.org/10.1117/12.466054.

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S., Indira Rani, Amy Doherty, Nigel Atkinson, William Bell, Stuart Newman, Richard Renshaw, John P. George, and E. N. Rajagopal. "Assimilation of SAPHIR radiance: impact on hyperspectral radiances in 4D-VAR." In SPIE Asia-Pacific Remote Sensing, edited by Allen M. Larar, Prakash Chauhan, Makoto Suzuki, and Jianyu Wang. SPIE, 2016. http://dx.doi.org/10.1117/12.2222781.

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Gautron, Pascal, Jaroslav Křivánek, Kadi Bouatouch, and Sumanta Pattanaik. "Radiance cache splatting." In ACM SIGGRAPH 2008 classes. New York, New York, USA: ACM Press, 2008. http://dx.doi.org/10.1145/1401132.1401231.

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Gautron, Pascal, Kadi Bouatouch, and Sumanta Pattanaik. "Temporal radiance caching." In ACM SIGGRAPH 2008 classes. New York, New York, USA: ACM Press, 2008. http://dx.doi.org/10.1145/1401132.1401232.

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Loos, Bradford J., Derek Nowrouzezahrai, Wojciech Jarosz, and Peter-Pike Sloan. "Delta radiance transfer." In the ACM SIGGRAPH Symposium. New York, New York, USA: ACM Press, 2012. http://dx.doi.org/10.1145/2159616.2159648.

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Lehtinen, Jaakko, and Jan Kautz. "Matrix radiance transfer." In the 2003 symposium. New York, New York, USA: ACM Press, 2003. http://dx.doi.org/10.1145/641480.641495.

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Takahashi, Nobuo. "Time-lapse radiance." In ACM SIGGRAPH 2013 Computer Animation Festival. New York, New York, USA: ACM Press, 2013. http://dx.doi.org/10.1145/2503541.2503627.

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Reports on the topic "Radiance"

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Britell, Scott. Local Radiance. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.7212.

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Gibson, Charles E., Benjamin K. Tsai, and Albert C. Parr. Radiance temperature calibrations. Gaithersburg, MD: National Institute of Standards and Technology, 1998. http://dx.doi.org/10.6028/nist.sp.250-43.

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Walker, James H., Robert D. Saunders, and Albert T. Hattenburg. Spectral radiance calibrations. Gaithersburg, MD: National Bureau of Standards, 1987. http://dx.doi.org/10.6028/nbs.sp.250-1.

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Waters, William R., James H. Walker, and Albert T. Hattenburg. Radiance temperature calibrations. Gaithersburg, MD: National Bureau of Standards, 1987. http://dx.doi.org/10.6028/nbs.sp.250-7.

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McCarty, M. V., S. R. Mix, M. R. Knight, John P. Eddy, Jay Tillay Johnson, and Sigifredo Gonzalez. RADIANCE Cybersecurity Plan: Generic Version. Office of Scientific and Technical Information (OSTI), April 2020. http://dx.doi.org/10.2172/1634181.

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Johnson, Jay Tillay, John P. Eddy, Michael McCarty, Scott Mix, and Mark Knight. RADIANCE Cybersecurity Plan: Generic Version. Office of Scientific and Technical Information (OSTI), September 2019. http://dx.doi.org/10.2172/1567984.

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Chang, Grace. Radiance in a Dynamic Ocean (RaDyO): Radiance and Visibility as Affected by Inherent Optical Properties. Fort Belvoir, VA: Defense Technical Information Center, September 2010. http://dx.doi.org/10.21236/ada541222.

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Chang, Grace. Radiance in a Dynamic Ocean (RaDyO): Radiance and Visibility as Affected by Inherent Optical Properties. Fort Belvoir, VA: Defense Technical Information Center, January 2009. http://dx.doi.org/10.21236/ada519440.

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Demirgian, J., and R. Dedecker. Atmospheric Emitted Radiance Interferometer (AERI) Handbook. Office of Scientific and Technical Information (OSTI), January 2005. http://dx.doi.org/10.2172/1020273.

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Zeisse, C. R. SeaRad, A Sea Radiance Prediction Code. Fort Belvoir, VA: Defense Technical Information Center, November 1995. http://dx.doi.org/10.21236/ada303431.

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