Guided Calibration of Medical Stereo Endoscopes

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review

Contributors

  • Matthias Hardner - , Chair of Photogrammetry (Author)
  • Reuben Docea - , National Center for Tumor Diseases (NCT) Dresden (Author)
  • Danilo Schneider - , Dresden University of Applied Sciences (HTW) (Author)

Abstract

Using stereo endoscopes for 3D reconstruction in minimally invasive surgery, the calibration of the stereo system is required. Since calibration in general and of medical endoscopes in particular is a well discussed topic, this publication will focus on the user experience in the operating room. To enable the medical personnel in performing the calibration, a guided process using an augmented camera image has been developed and implemented on the basis of the Robot Operating System framework. A similarly guided accuracy check allows the user to determine beforehand if a calibration is necessary.The method is tested by performing multiple calibrations on two different stereo endoscopes. It is shown, that the accuracy check and calibration can be completed in around 2 minutes. The resulting calibration parameters for one endoscope are analyzed in terms of temporal stability. Additionally, the self-heating that occurs after the system starts is examined. It is shown that short- and long-term effects impact the stereo system stability and that regular re-calibrations might be required for use in 3D reconstruction.

Details

Original languageEnglish
Title of host publicationInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
Pages679-686
Number of pages8
Volume43
EditionXLIII-B2-2022
Publication statusPublished - 30 May 2022
Peer-reviewedYes

Publication series

SeriesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
VolumeXLIII-B2-2022
ISSN1682-1750

Conference

Title24. ISPRS Congress (2022 edition)
Conference number
Duration6 - 18 June 2022
Website
Degree of recognitionInternational event
Location
CityNice
CountryFrance

External IDs

unpaywall 10.5194/isprs-archives-xliii-b2-2022-679-2022
Scopus 85132021348
WOS 000855635300093

Keywords

Research priority areas of TU Dresden

DFG Classification of Subject Areas according to Review Boards

Keywords

  • augmented reality, calibration, endoscope, guided calibration, stereo, user experience

Library keywords