Frequency analysis of gradient estimators in volume rendering
نویسندگان
چکیده
منابع مشابه
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 sample positions, using the derivative of the interpolation lter as the basis for the new gradient ...
متن کاملFrequency Analysis of Gradient Estimators in Volume Rendering Nal Version
In volume rendering gradient information is used to classify and color samples along a ray. In this paper we present an analysis of the theoretically ideal gradient estimator and compare some commonly used gradient estimators with the ideal estimator. A new method is presented to calculate the gradient on an arbitrary position, using the derivative of the interpolation lter as the basis for the...
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ژورنال
عنوان ژورنال: IEEE Transactions on Visualization and Computer Graphics
سال: 1996
ISSN: 1077-2626
DOI: 10.1109/2945.537307