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<p><b>Abstract</b>—Binary-defined 3D objects are common in volume graphics and medical imaging as a result of voxelization algorithms, segmentation methods, and binary operations such as clipping. Traditionally, renderings of binary objects suffer from severe image quality problems, especially when one tries to zoom-in and render the binary data from up close. We present a new rendering technique for discrete binary surfaces. The technique is based on distance-based normal estimation, an accelerated ray casting, and a tricubic interpolator. We demonstrate the quality achieved by our method and report on its interactive rendering speed.</p>
Volume visualization, volume rendering, ray casting, high order interpolation, distance function.

R. Yagel, D. Cohen-Or and A. Kadosh, "Tricubic Interpolation of Discrete Surfaces for Binary Volumes," in IEEE Transactions on Visualization & Computer Graphics, vol. 9, no. , pp. 580-586, 2003.
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