Browse > Article
http://dx.doi.org/10.15701/kcgs.2017.23.3.47

Efficient Computation of Isosurface Curvatures on GPUs Based on the de Boor Algorithm  

Kim, Minho (Department of Computer Science and Engineering, University of Seoul)
Publication Information
Journal of the Korea Computer Graphics Society / v.23, no.3, 2017 , pp. 47-54 More about this Journal
Abstract
In this paper, we propose an improved curvature-based GPU (Graphics Processing Unit) isosurface ray-casting technique. Our method adopts the fast evaluation method proposed by Sigg et al. [1] to find the isosurface, but replaces the computation of the gradient and Hessian with the de Boor algorithm. In this way, we can reduce the number of additional texture fetches from 84 to 27 thus improving the performance by up to ${\approx}30%$, depending on the platforms.
Keywords
volume rendering; GPU raycasting; curvature-based rendering; de Boor algorithm;
Citations & Related Records
연도 인용수 순위
  • Reference
1 C. Sigg and M. Hadwiger, "Fast third-order texture filtering," in GPU Gems 2, M. Pharr and R. Fernando, Eds. Addison-Wesley, 2005, ch. 20, pp. 313-330.
2 M. Hadwiger, J. M. Kniss, C. Rezk-salama, D. Weiskopf, and K. Engel, Real-time Volume Graphics. Natick, MA, USA: A. K. Peters, Ltd., 2006.
3 P. Ljung, J. Kruger, E. Groller, M. Hadwiger, C. D. Hansen, and A. Ynnerman, "State of the Art in Transfer Functions for Direct Volume Rendering," Computer Graphics Forum, vol. 35, no. 3, pp. 669-691, June 2016.   DOI
4 J. Hladuvka, A. Konig, and E. Groller, "Curvature-based transfer functions for direct volume rendering," in Spring Conference on Computer Graphics 2000, vol. 16, 2000, pp. 58-65.
5 G. Kindlmann, R. Whitaker, T. Tasdizen, and T. Moller, "Curvature-based transfer functions for direct volume rendering: methods and applications," in IEEE Visualization 2003. IEEE, Oct. 2003, pp. 513-520.
6 M. Hadwiger, C. Sigg, H. Scharsach, K. Buhler, and M. Gross, "Real-Time Ray-Casting and Advanced Shading of Discrete Isosurfaces," Computer Graphics Forum, vol. 24, no. 3, pp. 303-312, Sept. 2005.   DOI
7 W. Griffin, Y. Wang, D. Berrios, and M. Olano, "Realtime GPU surface curvature estimation on deforming meshes and volumetric data sets," IEEE Transactions on Visualization and Computer Graphics, vol. 18, no. 10, pp. 1603-1613, 2012.   DOI
8 J. Chen, X. Jin, and Z. Deng, "GPU-based polygonization and optimization for implicit surfaces," The Visual Computer, vol. 31, no. 2, pp. 119-130, feb 2015.   DOI