title: A uniform, raytracing-based imaging model for rigid and fiber-optic endoscopy.
abstract: Modern techniques for medical diagnosis and therapy make considerable use of endoscopes. Unfortunately, the wide-angle characteristic of endoscopes introduce severe aberrations such as chromatic aberration, geometric distortion or comb-structure to the images. The aberrations hinder or at worst prevent the application of fundamental image processing techniques for an appropriate image analysis. In this paper, we propose a uniform ray-tracing based image model for rigid as well as fiber-optic endoscopes. This model enables an objective assessment of algorithms that rely on the image formation using physically correct and thus valid ground truth data.
authors.affiliation: Image Processing and Medical Engineering Department, Fraunhofer-Institute for Integrated Circuits IIS, 91058 Erlangen, Germany. stephan.rupp@iis.fraunhofer.de
authors.forename: Stephan
authors.initials: S
authors.lastname: Rupp
authors.forename: Dirk
authors.initials: D
authors.lastname: Steckhan
mesh_terms: D000465:Algorithms; D004724:Endoscopy / Q000379:methods*; D005336:Fiber Optic Technology / Q000379:methods*; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008962:Models, Theoretical