Frequency analysis of gradient estimators in volume rendering

Gradient information is used in volume rendering to classify and color samples along a ray. In this paper, we present an analysis of the theoretically ideal gradient estimator and compare it to some commonly used gradient estimators. A new method is presented to calculate the gradient at arbitrary s...

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Veröffentlicht in:	IEEE transactions on visualization and computer graphics 1996-09, Vol.2 (3), p.242-254
Hauptverfasser:	Bentum, M.J., Lichtenbelt, B.B.A., Malzbender, T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithmics. Computability. Computer arithmetics Applied sciences Artificial intelligence Computational efficiency Computer science control theory systems Estimation theory Exact sciences and technology Frequency estimation Interpolation Optical filters Pattern recognition. Digital image processing. Computational geometry Rendering (computer graphics) Shearing Spline Theoretical computing Visualization
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