W.E. Lorensen, "Marching Through the Visible Human", The Visible Human Project Conference Proceedings, National Institutes of Health, Bethesda, October 7 & 8, 1996, http://www.nlm.nih.gov/research/visible/vhp_conf/vhpconf.h tm  Home/Search   Document Not in Database   Summary   Related Articles   Check

....Anatomic structures should be represented as compact surface descriptions, downloadable by an applet. The Marching Cubes algorithm [10] is an efficient method to compute the surface contouring a particular volume. This algorithm has already been successfully applied to the Visible Human CT data [13]. Sets of voxels with the same index form a volume whose surface is to reconstructed. The Marching Cubes algorithm generates a triangle mesh with a large number of triangles. By applying the decimation method [11] provided by the Visualization Toolkit (VTK [12] the number of triangles can be ....

W.E. Lorensen, "Marching Through the Visible Human", The Visible Human Project Conference Proceedings, National Institutes of Health, Bethesda, October 7 & 8, 1996, http://www.nlm.nih.gov/research/visible/vhp_conf/vhpconf.h tm

....graphics systems. 1 Introduction In spite of recent advances in computer graphics hardware, the demands for polygon rendering rates continually exceed the capabilities of any single computer. For example, isosurfaces extracted from The Visible Woman contain approximately 10 million polygons [14], and 3D models of Michalangelo s sculptures captured with laser range scanners contain tens of millions, or even billions, of triangles [13] In these cases and many others, the models are at least an order of magnitude too large to be rendered at interactive rates, and yet subpixel resolution ....

....for the tile so that they can be composited with depth comparisons to form a complete image for the tile. The (a) Michelangelo s David [13] 8,254,150 triangles, #800MB) b) Face of Michelangelo s St. Matthew [13] 6,755,412 triangles, #700MB) c) Visible Man Skeleton (without feet) [14, 28] (2,432,525 triangles, #250MB) Figure 6: Test models used in our experiments. goal of the client in this stage is to distribute the pixel composition work evenly among the servers, possibly filling in any imbalances created by uneven object assignments. We have implemented two algorithms for ....

William Lorensen. Marching through the visible human. In The Visible Human Project Conference Proceedings, October 1996.

....of such large databases still looks like an unattainable goal. A more immediate requirement is to reduce the rendering time as far as possible, so that the frame generation time decreases. Several attempts have been made to conquer the visible human, some notable ones been described in [5] 6][11][13] 15] In [6] an attempt has been made to develop a comprehensive virtual environment, including efficient segmentation and realistic ray tracing of the volume. In [15] the Visual Human is used as a basis for a comprehensive medical atlas. Palmer et al. 13] have gained speed by implementing ....

W.E. Lorensen. "Marching Through the Visible Human". Proceedings of Visualization 1995, Atlanta, Georgia, pp. 368-373.

....of such large databases still looks like an unattainable goal. A more immediate requirement is to reduce the rendering time as far as possible, so that the frame generation time decreases. Several attempts have been made to conquer the visible human, some notable ones been described in [5] 6][10][12] 14] In [6] an attempt has been made to develop a comprehensive virtual environment, including efficient segmentation and realistic ray tracing of the volume. In [14] the Visual Human is used as a basis for a comprehensive medical atlas. Palmer et al. 12] have gained speed by implementing ....

W.E. Lorensen. "Marching Through the Visible Human". Proceedings of Visualization 1995, Atlanta, Georgia, pp. 368-373.

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