ROBUST MATCHING OF IMAGES BY AN ALGORITHM BASED ON VOTING FOR TREATMENT ACCURACY ASSESSMENT IN RADIOTHERAPY
Leszek J. Chmielewski, Piotr Gut, Paweø Kukoøowicz, A. Dąbrowski · 2001
To find if the radiotherapy treatment of cancer is performed precisely it is necessary to register a pair of images: one made during therapy planning and the second one made during the therapy itself. To do this it is proposed to match the edges of the anatomical structures and the irradiation field found in both images and to use the Hausdorff distance modified by using a voting scheme. This makes it possible to perform the matching between those fragments of the edges which actually have their counterparts in the other image, and to omit hose which do not, in an automatic way.