voxelization; point cloud; curve-skeleton; skeletonization; distance transform; real-time
Abstract :
[en] This paper presents a surface and solid voxelization approach for incomplete point cloud datasets. Voxelization stands for a discrete approximation of 3-D objects into a volumetric
representation, a process which is commonly employed in computer graphics and increasingly being used in computer vision. In contrast to surface voxelization, solid voxelization not only
set those voxels related to the object surface but also those voxels considered to be inside the object. To that end, we first approximate the given point set, usually describing the external
object surface, to an axis-aligned voxel grid. Then, we slice-wise construct a shell containing all surface voxels along each grid-axis pair. Finally, voxels inside the constructed shell are set. Solid
voxelization results from the combination of all slices, resulting in a watertight and gap-free representation of the object. The experimental results show a high performance when voxelizing
point cloud datasets, independently of the object’s complexity, robust to noise, and handling large portions of data missing.
Disciplines :
Computer science
Author, co-author :
GARCIA BECERRO, Frederic ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
OTTERSTEN, Björn ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
External co-authors :
yes
Language :
English
Title :
CPU-Based Real-Time Surface and Solid Voxelization for Incomplete Point Cloud
Publication date :
27 August 2014
Event name :
22nd International Conference on Pattern Recognition
Event place :
Stockholm, Sweden
Event date :
from 24-08-2014 to 28-08-2014
Audience :
International
Main work title :
22nd International Conference on Pattern Recognition