title: An Approach to Improve Accuracy of Optical Tracking Systems in Cranial Radiation Therapy.
abstract: This work presents a new method for the accurate estimation of soft tissue thickness based on near infrared (NIR) laser measurements. By using this estimation, our goal is to develop an improved non-invasive marker-less optical tracking system for cranial radiation therapy. Results are presented for three subjects and reveal an RMS error of less than 0.34 mm.
authors.affiliation: University of Lübeck, Institute for Robotics and Cognitive Systems.
authors.forename: Patrick
authors.initials: P
authors.lastname: Stüber
authors.affiliation: Institute for Robotics and Cognitive Systems, University of Lübeck.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Wagner
authors.affiliation: University of Lübeck, Institute for Robotics and Cognitive Systems.
authors.forename: Tobias
authors.initials: T
authors.lastname: Wissel
authors.affiliation: Institute for Robotics and Cognitive Systems, University of Lubeck.
authors.forename: Ralf
authors.initials: R
authors.lastname: Bruder
authors.affiliation: Institute for Robotics and Cognitive Systems, University of Luebeck.
authors.forename: Achim
authors.initials: A
authors.lastname: Schweikard
authors.affiliation: University of Lübeck, Institute for Robotics and Cognitive Systems.
authors.forename: Floris
authors.initials: F
authors.lastname: Ernst
keywords: estimation of soft tissue thickness; optical head tracking