Endoscopic orientation correction

Höller KE, Penne J, Schneider A, Jahn J, Guttierrez J, Wittenberg T, Feußner H, Hornegger J (2009)

Publication Type: Authored book, Volume of book series

Publication year: 2009

Journal

Lecture Notes in Computer Science Springer Verlag

Original Authors: Höller K., Penne J., Schneider A., Jahn J., Guttiérrez Boronat J., Wittenberg T., Feußner H., Hornegger J.

Publisher: Springer-verlag

City/Town: Heidelberg

Book Volume: null

Pages Range: 459-466

Event location: London

Journal Issue: null

ISBN: 978-3-642-04267-6

DOI: 10.1007/978-3-642-04268-3_57

Abstract

An open problem in endoscopic surgery (especially with flexible endoscopes) is the absence of a stable horizon in endoscopic images. With our "Endorientation" approach image rotation correction, even in non-rigid endoscopic surgery (particularly NOTES), can be realized with a tiny MEMS tri-axial inertial sensor placed on the tip of an endoscope. It measures the impact of gravity on each of the three orthogonal accelerometer axes. After an initial calibration and filtering of these three values the rotation angle is estimated directly. Achievable repetition rate is above the usual endoscopic video frame rate of 30Hz; accuracy is about one degree. The image rotation is performed in real-time by digitally rotating the analog endoscopic video signal. Improvements and benefits have been evaluated in animal studies: Coordination of different instruments and estimation of tissue behavior regarding gravity related deformation and movement was rated to be much more intuitive with a stable horizon on endoscopic images. © 2009 Springer-Verlag.

Authors with CRIS profile

Kurt Emmerich Höller Zentralinstitut für Medizintechnik Thomas Wittenberg Technische Fakultät Joachim Hornegger Lehrstuhl für Informatik 14 (Bild- und Sprachverarbeitung)

Involved external institutions

Technische Universität München (TUM) DE Germany (DE) Fraunhofer-Institut für Integrierte Schaltungen (IIS) DE Germany (DE)

How to cite

APA:

Höller, K.E., Penne, J., Schneider, A., Jahn, J., Guttierrez, J., Wittenberg, T.,... Hornegger, J. (2009). Endoscopic orientation correction. Heidelberg: Springer-verlag.

MLA:

Höller, Kurt Emmerich, et al. Endoscopic orientation correction. Heidelberg: Springer-verlag, 2009.

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