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Illumination from Curved Reflectors
, 1992
"... A technique is presented to compute the reflected illumination from curved mirror surfaces onto other surfaces. In accordance with Fermat's principle, this is equivalent to finding extremal paths from the light source to the visible surface via the mirrors. Once pathways of illumination are found, i ..."
Abstract

Cited by 55 (0 self)
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A technique is presented to compute the reflected illumination from curved mirror surfaces onto other surfaces. In accordance with Fermat's principle, this is equivalent to finding extremal paths from the light source to the visible surface via the mirrors. Once pathways of illumination are found, irradiance is computed from the Gaussian curvature of the geometrical wavefront. Techniques from optics, differential geometry and interval analysis are applied to solve these problems. CR Categories and Subject Descriptions: I.3.3 [ Computer Graphics ]: Picture/Image Generation; I.3.7 [ Computer Graphics ]: ThreeDimensional Graphics and Realism General Terms: Algorithms Additional Keywords and Phrases: Caustics, Differential Geometry, Geometrical Optics, Global Illumination, Interval Arithmetic, Ray Tracing, Wavefronts 1. Introduction Ray tracing provides a straightforward means for synthesizing realistic images on the computer. A scene is first modeled, usually by a collection of implici...
highlevel numerical models and genetic algorithms
, 2002
"... Design and analysis of radiometric instruments using highlevel numerical models and genetic algorithms by ..."
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Design and analysis of radiometric instruments using highlevel numerical models and genetic algorithms by
cavity effect, optical crosstalkOptical Analysis of a LinearArray Thermal Radiation Detector for Geostationary Earth Radiation Budget Applications
, 1998
"... develop a new technology for thermal radiation detectors. The Group is also studying the viability of replacing current Earth Radiation Budget radiometers with this new concept. This nextgeneration detector consists of a thermopile linear array thermal radiation detector. The principal objective of ..."
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develop a new technology for thermal radiation detectors. The Group is also studying the viability of replacing current Earth Radiation Budget radiometers with this new concept. This nextgeneration detector consists of a thermopile linear array thermal radiation detector. The principal objective of this research is to develop an optical model for the detector and its cavity. The model based on the MonteCarlo raytrace (MCRT) method, permits parametric studies to optimize the design of the detector cavity and the specification of surface optical properties. The model is realized as a FORTRAN program which permits the calculation of quantities related to the crosstalk among pixels of the detector and radiation exchange among surfaces of the cavity. An important capability of the tool is that it provides estimates of the discrete Green’s function that permits partial correction for optical crosstalk among pixels of the array. Agradecimientos Primero que todo quiero agradecer a mi “advisor ” por su confianza ciega, apoyo incondicional e inmensa paciencia, y a Dr E. P. Scott y Dr. T. E. Diller por su disponibilidad para ser miembros de mi comité.