Details
| Original language | English |
|---|---|
| Pages (from-to) | 71-79 |
| Number of pages | 9 |
| Journal | Optics and lasers in engineering |
| Volume | 83 |
| Early online date | 24 Mar 2016 |
| Publication status | Published - Aug 2016 |
Abstract
This paper presents a real-time method for interactive focus positioning in laser microsurgery. Registration of stereo vision and a surgical laser is performed in order to combine surgical scene and laser workspace information. In particular, stereo image data is processed to three-dimensionally reconstruct observed tissue surface as well as to compute and to highlight its intersection with the laser focal range. Regarding the surgical live view, three augmented reality concepts are presented providing visual feedback during manual focus positioning. A user study is performed and results are discussed with respect to accuracy and task completion time. Especially when using color-encoded distance superimposed to the live view, target positioning with sub-millimeter accuracy can be achieved in a few seconds. Finally, transfer to an intraoperative scenario with endoscopic human in vivo and cadaver images is discussed demonstrating the applicability of the image overlay in laser microsurgery.
Keywords
- Augmented reality, Laser-to-camera registration, Stereo vision, Surgical user interface
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Optics and lasers in engineering, Vol. 83, 08.2016, p. 71-79.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Color-encoded distance for interactive focus positioning in laser microsurgery
AU - Schoob, Andreas
AU - Kundrat, Dennis
AU - Lekon, Stefan
AU - Kahrs, Lüder A.
AU - Ortmaier, Tobias
N1 - Funding information: The research received funding from the European Seventh Framework Programme FP7/2007-2013 under grant agreement ?RALP - no. 288663. We thank Prof. Giorgio Peretti from the Department of Otorhinolaryngology, San Martino University Hospital Genoa, Italy providing in vivo image data. We furthermore thank Prof. Laurent Tavernier from the Department of Otorhinolaryngology, University Hospital of Besançon, France for acquiring images in human cadaver trials.
PY - 2016/8
Y1 - 2016/8
N2 - This paper presents a real-time method for interactive focus positioning in laser microsurgery. Registration of stereo vision and a surgical laser is performed in order to combine surgical scene and laser workspace information. In particular, stereo image data is processed to three-dimensionally reconstruct observed tissue surface as well as to compute and to highlight its intersection with the laser focal range. Regarding the surgical live view, three augmented reality concepts are presented providing visual feedback during manual focus positioning. A user study is performed and results are discussed with respect to accuracy and task completion time. Especially when using color-encoded distance superimposed to the live view, target positioning with sub-millimeter accuracy can be achieved in a few seconds. Finally, transfer to an intraoperative scenario with endoscopic human in vivo and cadaver images is discussed demonstrating the applicability of the image overlay in laser microsurgery.
AB - This paper presents a real-time method for interactive focus positioning in laser microsurgery. Registration of stereo vision and a surgical laser is performed in order to combine surgical scene and laser workspace information. In particular, stereo image data is processed to three-dimensionally reconstruct observed tissue surface as well as to compute and to highlight its intersection with the laser focal range. Regarding the surgical live view, three augmented reality concepts are presented providing visual feedback during manual focus positioning. A user study is performed and results are discussed with respect to accuracy and task completion time. Especially when using color-encoded distance superimposed to the live view, target positioning with sub-millimeter accuracy can be achieved in a few seconds. Finally, transfer to an intraoperative scenario with endoscopic human in vivo and cadaver images is discussed demonstrating the applicability of the image overlay in laser microsurgery.
KW - Augmented reality
KW - Laser-to-camera registration
KW - Stereo vision
KW - Surgical user interface
UR - http://www.scopus.com/inward/record.url?scp=84961926710&partnerID=8YFLogxK
U2 - 10.1016/j.optlaseng.2016.03.002
DO - 10.1016/j.optlaseng.2016.03.002
M3 - Article
AN - SCOPUS:84961926710
VL - 83
SP - 71
EP - 79
JO - Optics and lasers in engineering
JF - Optics and lasers in engineering
SN - 0143-8166
ER -