Partially Observed Objects Localization with PCA and KPCA Models

Vincent Guilloux (1) , Barbara Romaniuk (1) , Michel Desvignes (2) , Marie-Josèphe Deshayes (3)

1 Equipe Image - Laboratoire GREYC - UMR6072
2 Image
3 Télécrâne Innovation

We deal with the problem of partially observed objects. These objects are defined by sets of points and their shape variations are represented by a statistical model. We present two models: a linear model based on PCA and a non-linear model based on KPCA (kernel PCA). The present work attempts to localize non visible parts of an object from visible parts and from the model, explicitly. using the variability represented by the model. Both are applied to the cephalometric problem with good results.

Mots clés: medical image processing; object detection; principal component analysis; radiography

Domaines: Traitement des images [eess.IV]

Vincent Guilloux, Barbara Romaniuk, Michel Desvignes, Marie-Josèphe Deshayes. Partially Observed Objects Localization with PCA and KPCA Models. 6th IEEE Southwest Symposium on Image Analysis and Interpretation, 2004, Lake Tahoe, Nevada, United States. pp.80-84. ⟨hal-00843457⟩