2009
DOI: 10.1016/j.ijleo.2007.06.010
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Efficient ray-tracing for free-form reflectors

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Cited by 7 publications
(4 citation statements)
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“…Q is the matrix of the control points of the QH iso-parametric curves. (12) To find the central control points of the surface, only the four horizontal curves QH are necessary taking into account that the peripheral points of the matrix are both categories: surface control points and iso-parametric curve control points.…”
Section: Constructive Methods To Find the Bezier Surface Control Pointsmentioning
confidence: 99%
“…Q is the matrix of the control points of the QH iso-parametric curves. (12) To find the central control points of the surface, only the four horizontal curves QH are necessary taking into account that the peripheral points of the matrix are both categories: surface control points and iso-parametric curve control points.…”
Section: Constructive Methods To Find the Bezier Surface Control Pointsmentioning
confidence: 99%
“…The best outcome was then combined with the five types of reflectors. Using knowledge from ray tracing equations we used inverse ray tracing to model our reflector [11]. A simple two dimensional model was used to select were we wanted a light ray vector to hit, then we traced the ray vector back to the intersection point with our reflector, which can be any point in three dimensional space.…”
Section: Light Changes Due To Reflectormentioning
confidence: 99%
“…Les tècniques d'optimització numèrica utilitzen diferents estratègies d'optimització, moltes d'elles adaptades de les tècniques d'optimització que s'utilitzen en l'optimització de sistemes òptics formadors d'imatges (Turner and Garcia 2008): les més utilitzades són les tècniques de mínims quadrats (DLS-damped least squares) (Rayces and Rosete-Aguilar 2004), simulated annealing, (Su, Xue, and Ji 2012), Downhill símplex (Koshel 2005;Yang et al 2009), i algorismes genètics (Ashdown, Brackett, and Sikkens 1994;Cuevas et al 2006;Fang and Tsai 2008). Hi ha diversos mètodes directes per el disseny de superfícies de forma lliure.…”
Section: Optimització Numèricaunclassified
“…2009 • Ús de traçat de rajos iteratiu per aplicar a superfícies descrites com a B-spline. (Yang et al 2009).…”
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