Deformable templates — revisited and extended — with an OOP implementation☆

Abstract In this note, a general approach to track reconstruction will be described, the deformable template or elastic arms algorithm. The review part of the paper is meant to be pedagogical with the physical interpretation of the algorithm kept paramount. The extension of this approach to handle hit ambiguities (mirror charges), delta rays, vee-tracks, etc., will be given. Finally, the implementation of the algorithm in an object oriented computer language will be sketched and the resulting advantages discussed.