Enhancing the coupled zone of a stereoscopic display

1. A computer-implemented method for calibrating a three dimensional (3D) stereoscopic display system, comprising:

a computer performing:

rendering a virtual model of at least one physical object placed at a location on a surface of a display of the 3D stereoscopic system, wherein the virtual model is geometrically similar to the at least one physical object;

aligning a first vertex of the virtual model with a corresponding first vertex of the at least one physical object; and

adjusting a second vertex of the virtual model such that the second vertex is substantially coincident with a corresponding second vertex of the at least one physical object.

2. The computer-implemented method of claim 1 ,

wherein the at least one physical object is a physical wireframe; and

wherein the virtual model is a virtual wireframe.

3. The computer-implemented method of claim 1 , wherein said adjusting comprises:

scaling the virtual model in response to user input dragging the second vertex of the virtual model.

4. The computer-implemented method of claim 1 , wherein the location is a first location, and wherein the method further comprises:

repeating said rendering, said aligning, and said adjusting for each of one or more additional locations.

5. The computer-implemented method of claim 1 , further comprising:

the computer performing tracking position and orientation of a user, wherein the virtual model is rendered based on said tracking.

6. The computer-implemented method of claim 1 , further comprising:

the computer performing tracking position and orientation of a viewpoint of a user, wherein the virtual model is rendered based on said tracking.

7. The computer-implemented method of claim 6 ,

wherein the viewpoint comprises a six degree of freedom viewpoint.

8. A non-transitory computer readable memory medium storing program instructions executable by a processor to:

render a virtual model of at least one physical object placed at a location on a surface of a display of the 3D stereoscopic system, wherein the virtual model is geometrically similar to the at least one physical object;

align a first vertex of the virtual model with a corresponding first vertex of the at least one physical object; and

adjust a second vertex of the virtual model such that the second vertex is substantially coincident with a corresponding second vertex of the at least one physical object.

9. The non-transitory computer readable memory medium of claim 8 ,

wherein the at least one physical object is a physical wireframe; and

wherein the virtual model is a virtual wireframe.

10. The non-transitory computer readable memory medium of claim 8 , wherein to adjust the second vertex, the program instructions are further executable by the processor to:

scale the virtual model in response to user input dragging the second vertex of the virtual model.

11. The non-transitory computer readable memory medium of claim 8 , wherein the location is a first location, and wherein the program instructions are further executable by the processor to:

repeat said rendering, said aligning, and said adjusting for each of one or more additional locations.

12. The non-transitory computer readable memory medium of claim 8 , wherein the program instructions are further executable by the processor to:

track position and orientation of a user, wherein the virtual model is rendered based on said tracking.

13. The non-transitory computer readable memory medium of claim 8 , wherein the program instructions are further executable by the processor to:

track position and orientation of a viewpoint of a user, wherein the virtual model is rendered based on said tracking.

14. The non-transitory computer readable memory medium of claim 13 ,

wherein the viewpoint comprises a six degree of freedom viewpoint.

15. A system, comprising:

at least one display;

a processor coupled to the at least one display; and

a memory, coupled to the processor, wherein the memory stores program instructions executable by the processor to:

render a virtual model of at least one physical object placed at a location on a surface of the at least one display, wherein the virtual model is geometrically similar to the at least one physical object;

align a first vertex of the virtual model with a corresponding first vertex of the at least one physical object; and

adjust a second vertex of the virtual model such that the second vertex is substantially coincident with a corresponding second vertex of the at least one physical object.

16. The system of claim 15 ,

wherein the at least one physical object is a physical wireframe; and

wherein the virtual model is a virtual wireframe.

17. The system of claim 16 , wherein to adjust the second vertex of the virtual model object the program instructions are further executable by the processor to:

scale the virtual model in response to user input dragging the second vertex of the virtual model.

18. The system of claim 15 , wherein the location is a first location, and wherein the program instructions are further executable by the processor to:

repeat said rendering, said aligning, and said adjusting for each of one or more additional locations.

19. The system of claim 15 , further comprising:

a head tracking system coupled to the processor;

wherein the program instructions are further executable by the processor to:

track position and orientation of a user via the head tracking system, wherein the virtual model is rendered based on said tracking.

20. The system of claim 15 , further comprising:

a head tracking system coupled to the processor;

wherein the program instructions are further executable by the processor to:

track position and orientation of a viewpoint of a user via the head tracking system, wherein the virtual model is rendered based on said tracking.