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[Comparative study of spatial imaging techniques in stereo-endoscopy]
U D A Müller-Richter1, A Limberger, P Weber
1Abteilung für Mund-, Kiefer- und Gesichtschirurgie, Universitätsklinik und Poliklinik für Zahn-, Mund- und Kieferkrankheiten, Homburg, Saar. mueller-richter@web.de
Purpose:
This study compares the two-dimensional presentation of stereo-endoscopic video data with three-dimensional presentation using polarization glasses and three-dimensional presentation with an autostereoscopic display. The aim of this study was to evaluate possible advantages of the three display technologies.
Material And Methods:
Fifty-nine test persons untrained in endoscopy had to complete three endoscopic tasks with different levels of difficulty. Each test involved a new presentation method. Different measurements were noted such as speed of task completion, accuracy of task performance, and quantity of solved tasks. The data collected were statistically evaluated.
Results:
Neither sex, handedness, nor level of stereopsis had any statistically significant impact on the test results. The differences between the three presentation methods of stereo-endoscopic pictures were not statistically significant.
Conclusion:
Similar results were achieved with all three presentation methods. None of the presentation methods was significantly superior in the values measured. A final assessment of the possibilities of spatial endoscopy should await future technological developments in endoscopic devices (e.g., picture acquisition).
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