Multi-view 3D retrieval using silhouette intersection and multi-scale contour representation
Napoléon, Thibault and Adamek, Tomasz and Schmitt, Francis and O'Connor, Noel E. (2007) Multi-view 3D retrieval using silhouette intersection and multi-scale contour representation. In: SHREC 2007 - Shape Retrieval Contest, 13-15 June 2007, Lyon, France.
Full text available as:
We describe in this paper two methods for 3D shape indexing
and retrieval that we apply on two data collections
of the SHREC - SHape Retrieval Contest 2007: Watertight
models and 3D CAD models. Both methods are based on a
set of 2D multi-views after a pose and scale normalization
of the models using PCA and the enclosing sphere. In all
views we extract the models silhouettes and compare them
pairwise. In the first method the similitude measure is obtained by integrating on the pairs of views the difference between the areas of the silhouettes union and the silhouettes intersection. In the second method we consider the external contour of the silhouettes, extract their convexities and concavities at different scale levels and build a multiscale representation. The pairs of contours are then compared by elastic matching achieved by using dynamic programming. Comparisons of the two methods are shown with their respective strengths and weaknesses.
Archive Staff Only: edit this record