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» Real-Time Soft Shadows Using a Single Light Sample
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ICPR
2002
IEEE
13 years 11 months ago
Feasibility of Hough-Transform-Based Iris Localisation for Real-Time-Application
We present a fast method for locating iris features in frontal face images based on the Hough transform. It consists of an initial iris detection step and a tracking step which us...
Klaus D. Tönnies, Frank Behrens, Melanie Aurn...
VC
2010
135views more  VC 2010»
13 years 4 months ago
Real-time single scattering inside inhomogeneous materials
In this paper we propose a novel technique to perform real-time rendering of translucent inhomogeneous materials, one of the most well known problems of Computer Graphics. The deve...
D. Bernabei, Fabio Ganovelli, Nico Pietroni, Paolo...
CGF
2008
123views more  CGF 2008»
13 years 6 months ago
Gradient-based Interpolation and Sampling for Real-time Rendering of Inhomogeneous, Single-scattering Media
We present a real-time rendering algorithm for inhomogeneous, single scattering media, where all-frequency shading effects such as glows, light shafts, and volumetric shadows can ...
Zhong Ren, Kun Zhou, Stephen Lin, Baining Guo
SIGGRAPH
1999
ACM
13 years 10 months ago
Direct Illumination with Lazy Visibility Evaluation
In this paper we present a technique for computing the direct lighting in a three-dimensional scene containing area light sources. Our method correctly handles partial visibility ...
David Hart, Philip Dutré, Donald P. Greenbe...
CGF
1998
110views more  CGF 1998»
13 years 5 months ago
Adaptive Supersampling in Object Space Using Pyramidal Rays
We introduce a new approach to three important problems in ray tracing: antialiasing, distributed light sources, and fuzzy reflections of lights and other surfaces. For antialias...
Jon D. Genetti, Dan Gordon, G. Williams