Name
Abstract | ||
|---|---|---|
Inherent to the field of computer-aided surgery (CAS) is the necessity to handle sophisticated equipment in the operating
room; an undesired side-effect of this development is the fact that the surgeon’s attention is drawn from the operating field
since surgical progress is partially monitored on the computer’s screen. The overlay of computer-generated graphics over a
real-world scene, also referred to as augmented reality (AR), provides a possibility to solve this problem. The considerable
technical problems associated with this approach such as viewing of the scenery within a common focal range on the head-mounted
display (HMD) or latency in display on the HMD have, however, kept AR from widespread usage in CAS. In this paper, the concept
of the Varioscope AR, a lightweight head-mounted operating microscope used as a HMD, is introduced. The registration of the
patient to the preoperative image data as well as preoperative planning take place on VISIT, a surgical navigation system
developed at our hospital. Tracking of the HMD and stereoscopic visualisation take place on a separate POSIX.4 compliant realtime
operating system running on PC hardware. While being in a very early stage of laboratory testing, we were able to overcome
the technical problems described above; our work resulted in an AR visualisation system with an update rate of 6 Hz and a
latency below 130 ms. First tests with 2D/3D registration have shown a match between 3D world coordinates and 2D HMD display
coordinates in the range of 1.7 pixels. It integrates seamlessly into a surgical navigation system and provides a common focus
for both virtual and real world objects. On the basis of our current results, we conclude that the Varioscope AR with the
realtime visualisation unit is a major step towards the introduction of AR into clinical routine.
|
Year | DOI | Venue |
|---|---|---|
2000 | 10.1007/978-3-540-40899-4_90 | MICCAI |
Keywords | Field | DocType |
varioscope ar,augmented reality,head-monted operating microscope,side effect,head mounted display,operating system | Graphics,Computer vision,Computer graphics (images),Stereoscopy,Visualization,Computer science,Navigation system,Real-time operating system,Augmented reality,Pixel,Artificial intelligence,Overlay | Conference |
Volume | ISSN | ISBN |
1935 | 0302-9743 | 3-540-41189-5 |
Citations | PageRank | References |
11 | 0.97 | 8 |
Authors | ||
10 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Wolfgang Birkfellner | 1 | 234 | 38.12 |
| Michael Figl | 2 | 65 | 7.33 |
| Klaus Huber | 3 | 11 | 0.97 |
| Franz Watzinger | 4 | 127 | 15.76 |
| Felix Wanschitz | 5 | 136 | 14.10 |
| Rudolf Hanel | 6 | 84 | 7.73 |
| Arne Wagner | 7 | 11 | 1.98 |
| Dietmar Rafolt | 8 | 12 | 1.35 |
| Rolf Ewers | 9 | 126 | 15.34 |
| Helmar Bergmann | 10 | 167 | 26.10 |