Surface shading in tomographic volume visualization: a comparative study
作者： A. Pommert , U. Tiede , G. Wiebecke , K.H. Hohne
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摘要: The quality of different shading algorithms for use in tomographic volume visualization (z-buffer gradient, gray-level adaptive marching cubes, cubes segmentation with Phong interpolation, transparent gradient), using simulated and clinical data, is investigated. Error images are used to visualize deviations the calculated surface normal vectors from ideal values. For assessment rendering, reflection maps used. best results obtained gradient interpolation. first method based on voxel model thus especially suitable interactive data exploration. second creates a polygon structure, which may be manipulated methods developed computer graphics. Transparent should only if no binary can done. >
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