Claims
- 1. A head-mounted display system comprising:
an imaging camera for capturing a view of a workspace located below the head-mounted display system, the imaging camera oriented at a downward pitch angle for capturing an image of the workspace; and a display for displaying a view of the workspace captured by the imaging camera.
- 2. The system of claim 1, wherein the pitch angle is greater than about 25 degrees down angle.
- 3. The system of claim 1, further comprising two imaging cameras for capturing a stereoscopic view of the workspace, wherein the display is stereoscopic.
- 4. The system of claim 1, further comprising a tracking camera for capturing a field of view including a marker structure.
- 5. The system of claim 4, wherein the marker structure is adjacent to a workspace.
- 6. The system of claim 4, wherein the marker structure frames a workspace.
- 7. The system of claim 4, wherein the marker structure includes a plurality of light emitting diodes, visible to the tracking camera.
- 8. The system of claim 4, wherein the marker structure comprises a plurality of retro-reflectors and the tracking camera further comprises a light source.
- 9. The system of claim 1, further comprising a head-mounted tracking camera having a forward-looking orientation.
- 10. The system of claim 9, wherein the tracking camera is attached to the imaging camera at a fixed orientation.
- 11. The system of claim 9, wherein the tracking camera includes a field of view wider than a field of view of the imaging camera.
- 12. The system of claim 9, wherein the tracking camera further comprises a visual-cut, infrared-pass filter.
- 13. The system of claim 1, further comprising a plurality of markers visible to a tracking camera, wherein the tracking camera is positioned with a view including the head-mounted-display.
- 14. The system of claim 1, wherein the pitch angle of the imaging camera facilitates a substantially erect head posture.
- 15. A head-mounted display system comprising:
an imaging camera for capturing a view of a workspace; a tracking camera in a fixed position and orientation relative to the imaging camera, the tracking camera for capturing a tracking image including a marker structure; and a display which displays a view of the workspace captured by the imaging camera augmented by a virtual image generated by a processor and registered according to the tracking image.
- 16. The head-mounted display system of claim 15, wherein the imaging camera is oriented at a downward pitch angle.
- 17. The head-mounted display system of claim 15, wherein the tracking camera is oriented having a forward-looking view.
- 18. A head-mounted display system comprising:
a pair of imaging cameras for capturing a stereoscopic view of a workspace; a tracking camera for capturing a field of view including a marker structure, the tracking camera having a fixed position and orientation relative to the pair of imaging cameras; a display for displaying the stereoscopic view of the workspace captured by the pair of imaging cameras and augmented with a computer graphic according to a position and orientation of the imaging cameras relative to the workspace; and a processor for determining the position and orientation of the imaging cameras relative to the workspace based on the location of the marker structure in the field of view captured by the tracking camera.
- 19. The system of claim 18, wherein the pair of imaging cameras is oriented at a downward pitch angle greater than about 25 degrees.
- 20. The system of claim 18, wherein the pair of imaging cameras is oriented at a downward pitch angle for facilitating a substantially erect head posture.
- 21. The system of claim 18, wherein the tracking camera is fixed having a forward-looking view.
- 22. The system of claim 18, further comprising a plurality of tracking cameras for capturing a plurality of fields of view, the tracking cameras having fixed positions and orientations relative to the pair of imaging cameras.
Parent Case Info
[0001] This is a non-provisional application claiming the benefit of provisional application serial No. 60/238,253 entitled, Intra-Operative-MR Guided Neurosurgery with Augmented Reality Visualization, filed Oct. 5, 2000.
Provisional Applications (1)
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Number |
Date |
Country |
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60238253 |
Oct 2000 |
US |