TY - GEN
T1 - Object voxelization by filtering
AU - Šrámek, Miloš
AU - Kaufman, Arie
N1 - Publisher Copyright:
Copyright 1998 IEEE.
PY - 1998/10/1
Y1 - 1998/10/1
N2 - We analyze different filters used for the voxelization of analytically described objects. We show that, when the voxel model is used for visualization, the filter design is related to the subsequentrendering phase, namely the gradient estimation technique. Our theoretical and experimental analyses show that, in order to avoid a systematic error in normal estimation, the density profile near the surface should be linearly proportional to the distance from the surface. Optimal thickness of this transient region has been estimated to be about 3 voxel units. Based on these results, we propose a technique forvoxelization of arbitraryparametric surfaces, using a hierarchical subdivision of the 2D surface domain.
AB - We analyze different filters used for the voxelization of analytically described objects. We show that, when the voxel model is used for visualization, the filter design is related to the subsequentrendering phase, namely the gradient estimation technique. Our theoretical and experimental analyses show that, in order to avoid a systematic error in normal estimation, the density profile near the surface should be linearly proportional to the distance from the surface. Optimal thickness of this transient region has been estimated to be about 3 voxel units. Based on these results, we propose a technique forvoxelization of arbitraryparametric surfaces, using a hierarchical subdivision of the 2D surface domain.
KW - Error estimation
KW - Filter-based voxelization
KW - Hierarchical subdivision
KW - Normal estimation
KW - Parametric surfaces
KW - Volume graphics
KW - Volume rendering
UR - https://www.scopus.com/pages/publications/3543077238
U2 - 10.1145/288126.288178
DO - 10.1145/288126.288178
M3 - Conference contribution
AN - SCOPUS:3543077238
T3 - Proceedings of the 1998 IEEE Symposium on Volume Visualization, VVS 1998
SP - 111
EP - 118
BT - Proceedings of the 1998 IEEE Symposium on Volume Visualization, VVS 1998
PB - Association for Computing Machinery, Inc
T2 - 1998 IEEE Symposium on Volume Visualization, VVS 1998
Y2 - 19 October 1998 through 20 October 1998
ER -