Authors:
Oussama Moslah
1
;
Arnaud Debeugny
1
;
Vincent Guitteny
1
;
Serge Couvet
1
and
Sylvie Philipp-Foliguet
2
Affiliations:
1
THALES Security Solutions and Services, France
;
2
ENSEA, France
Keyword(s):
Voxel coloring, Visual hull, Marching cubes, Octree, GPGPU.
Related
Ontology
Subjects/Areas/Topics:
Applications
;
Computer Vision, Visualization and Computer Graphics
;
Geometry and Modeling
;
Image-Based Modeling
;
Motion, Tracking and Stereo Vision
;
Pattern Recognition
;
Real-Time Vision
;
Retrieval of 3D Objects from Video Sequences
;
Software Engineering
Abstract:
This paper presents algorithms and techniques towards a real-time and accurate Voxel Coloring framework. We combine Visual Hull, Voxel Coloring and Marching Cubes techniques to derive an accurate 3D model from a set of calibrated photographs. First, we adapted the Visual Hull algorithm for the computation of the bounding box from image silhouettes.
Then, we improved the accuracy of the Voxel Coloring algorithm using both colorimetric and geometric citerions. The calculation time is reduced using an Octree data structure. Then, the Marching Cubes is used to obtain a polygonal mesh from the voxel reconstruction. Finally, we propose a practical way to speed up the whole process using graphics hardware capababilities.