Peripheral lenses for simulating peripheral vision on a display device

• US 5,949,430 A
• Filed: 05/20/1997
• Issued: 09/07/1999
• Est. Priority Date: 05/20/1997
• Status: Expired due to Term

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Robbins, Daniel C., Robertson, George G.
• Primary Examiner(s): Nguyen, Phu K.
• Application Number:
  US08/859,605
• Time in Patent Office: 840 Days
• Field of Search: 345/433, 345/435, 345/440, 358/450
• US Class Current: 345/619
• CPC Class Codes: G06T 15/00 3D [Three Dimensional] image rendering

Abstract

Peripheral lenses provide simulated peripheral vision on a display device. One or more peripheral lenses may be provided to generate peripheral views corresponding to portions of peripheral vision. In a first alternative, multiple viewing frustums are utilized. A first viewing frustum is utilized to define a main view of a scene and additional viewing frustums are defined for each peripheral lens. The viewing frustums of the peripheral lenses are angularly offset relative to the viewing frustum for the main view and share a boundary with the viewing frustum for the main view. In a second alternative, a reflective object is positioned within a scene to yield peripheral views of the scene. Environment mapping is employed to determine how objects in the scene are reflected off the reflective object. The reflective object may be dynamically altered to modify the resulting peripheral view.

Claims

1. In a computer system having a display device, a method comprising the computer-implemented steps of:

providing a scene holding at least one object;

defining a main view of the scene that depicts a main portion of the scene;

defining a first peripheral lens view of the scene that is angularly offset relative to the main view of the scene and that shows a first peripheral portion of the scene that directly abuts the main portion of the scene; and

rendering the main view and the first peripheral lens view together on the display device.

2. The method of claim 1, further comprising the steps of:

defining a second peripheral lens view of the scene that is angularly offset relative to the main view of the scene and that shows a second peripheral portion of the scene that directly abuts the main portion of the scene and that does not overlap with the first peripheral portion of the scene; and

rendering the second peripheral lens view on the display device along with the main view and the peripheral lens view.

3. The method of claim 1 wherein the first peripheral lens view has a substantially same height as the main view.

4. The method of claim 1 wherein the first peripheral lens view has a substantially lesser width as the main view.

5. The method of claim 1 wherein the peripheral lens view is angularly offset relative to the main view in range between thirty degrees to sixty degrees.

6. The method of claim 1 wherein the scene is a three dimensional scene.

7. The method of claim 1 wherein the main view is rectangular.

8. The method of claim 7 wherein the first peripheral lens view is rectangular.

9. The method of claim 1, further comprising the step of dynamically altering an angular offset of the first peripheral lens relative to the main view.

10. The method of claim 9 wherein the first peripheral lens has a horizontal field of view and wherein the horizontal field of view of the first peripheral lens is adjusted when the angular offset is dynamically altered to insure that perceived images in the first peripheral lens view and the main view are contiguous.

11. The method of claim 1 wherein resolution of the main view differs from the resolution of the first peripheral lens view.

12. In a computer system having an output device, a method comprising the steps of:

modeling a scene that includes at least one object;

defining a first viewing frustum for the scene to define a main view of the scene, wherein the first viewing frustum includes boundaries;

defining a second viewing frustum for the scene to define a first peripheral lens view of the scene, wherein the second viewing frustum includes boundaries and at least one of said boundaries of the second viewing frustum being a shared boundary that is also a boundary of first viewing frustum;

outputting the main view of the scene together with the first peripheral lens view of the scene on the output device.

13. The method of claim 12 wherein the scene is a three dimensional scene.

14. The method of claim 12, further comprising the steps of:

defining a third viewing frustum for the scene to define a second peripheral lens view of the scene;

outputting the second peripheral lens view on the output device along with the main view and the first peripheral lens view.

15. The method of claim 14 wherein the third viewing frustum includes boundaries and wherein one of the boundaries is also a boundary of the first viewing frustum and not a boundary of the second viewing frustum.

16. The method of claim 15 wherein the main view has a left side edge and a right side edge and wherein the first peripheral lens view and the second peripheral lens view are output to be positioned adjacent to the left side edge and right side edge of the main view, respectively.

17. The method of claim 15 wherein the main view has a top side edge and a bottom side edge and wherein the first peripheral lens view and the second peripheral lens view are output to be positioned adjacent to the top side edge and the bottom side edge of the main view, respectively.

18. The method of claim 15 wherein the second viewing frustum and the third viewing frustum are angularly offset relative to the first viewing frustum by a like angular magnitude.

19. In a computer system that includes a display device, a method comprising the computer-implemented steps of:

modeling a three dimensional scene that includes at least one object;

adding a reflective object to the scene, said reflective object including a first portion for reflecting a main view of the scene and a second portion for reflecting a peripheral view of the scene, said second portion being angularly offset relative to said first portion;

identifying the main view of the scene and the peripheral view of the scene by performing environment mapping; and

displaying the identified main view of the scene and the identified peripheral view of the scene on the display device.

20. The method of claim 19 wherein the reflective object includes a third portion for reflecting an additional peripheral view of the scene and wherein the method further comprises identifying the additional peripheral view of the scene by performing environment mapping and displaying the identified additional view of the scene on the display device along with the identified main view and the identified peripheral view.

21. The method of claim 19, further comprising the step of dynamically altering a shape of the reflective object.

22. The method of claim 21, further comprising the steps of identifying the main view of the scene and the peripheral view of the scene by applying environment mapping to the reflective object after the reflective object is dynamically altered.

23. The method of claim 19 wherein the reflective object includes a curved surface.

24. In a computer system having a display device, a method comprising the steps of:

providing a model of a three dimensional space that includes an object;

defining a main view of the scene that depicts a main portion of the scene;

providing a peripheral lens that provides a peripheral view of the scene that depicts a peripheral portion of the scene that is immediately adjacent to the main view; and

seamlessly rendering the main view with the peripheral view on the display device.

25. The method of claim 24 wherein the peripheral lens has a shape and wherein the method further comprises the steps of dynamically altering the shape of the peripheral lens and again rendering the main view with the peripheral view on the display device.

26. The method of claim 24 wherein the peripheral lens has a size and wherein the method further comprises the steps of dynamically altering the size of the peripheral lens and again rendering the main view with the peripheral view on the display device.

27. The method of claim 24, further comprising the step of no longer receiving the peripheral view so that the main view is rendered on the display device without the peripheral view.

28. The method of claim 24 wherein the peripheral view has an angular offset relative to the main view and wherein the angular offset is dynamically altered.

29. The method of claim 28 wherein the peripheral lens has a horizontal field of view and wherein the horizontal field of view is adjusted in response to the angular offset being adjusted to insure that perceived images in the main view and the peripheral view are contiguous.

30. In a computer system having a display device and a model of a scene holding at least one object, a computer-readable medium holding computer-executable instructions for performing, a method comprising the computer-implemented steps of:

defining a main view of the scene that depicts a main portion of the scene;

defining a first peripheral lens view of the scene that is angularly offset relative to the main view of the scene and that shows a first peripheral portion of the scene that directly abuts the main portion of the scene; and

rendering the main view and the first peripheral lens view together on the display device.

31. The computer-readable medium of claim 30 wherein the method further comprises the steps of:

defining a second peripheral lens view of the scene that is angularly offset relative to the main view of the scene and that shows a second peripheral portion of the scene that directly abuts the main portion of the scene and that does not overlap with the first peripheral portion of the scene; and

rendering the second peripheral lens view on the display device along with the main view and the peripheral lens view.

32. The computer-readable medium of claim 30 wherein the first peripheral lens view has a substantially same height as the main view.

33. The computer-readable medium of claim 30 wherein the first peripheral lens view has a substantially lesser width as the main view.

34. The computer-readable medium of claim 30 wherein the scene is a three dimensional scene.

35. The computer-readable medium of claim 30 wherein the main view is rectangular.

36. The computer-readable medium of claim 30, wherein the method further comprises the step of dynamically altering an angular offset of the first peripheral lens relative to the main view.

37. The computer-readable medium of claim 36 wherein the first peripheral lens has a horizontal field of view and wherein the horizontal field of view of the first peripheral lens is adjusted when the angular offset is dynamically altered to insure that perceived images in the first peripheral lens view and the main view are contiguous.

38. The computer-readable medium of claim 30 wherein resolution of the main view differs from the resolution of the first peripheral lens view.

39. In a computer system having an output device, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of:

modeling a scene that includes at least one object;

defining a first viewing frustum for the scene to define a main view of the scene, wherein the first viewing frustum includes boundaries;

defining a second viewing frustum for the scene to define a first peripheral lens view of the scene, wherein the second viewing frustum includes boundaries and at least one of said boundaries of the second viewing frustum being a shared boundary that is also a boundary of first viewing frustum;

outputting the main view of the scene together with the first peripheral lens view of the scene on the output device.

40. The computer-readable medium of claim 39 wherein the scene is a three dimensional scene.

41. The computer-readable medium of claim 39 wherein the method further comprises the steps of:

defining a third viewing frustum for the scene to define a second peripheral lens view of the scene; and

outputting the second peripheral lens view on the output device along with the main view and the first peripheral lens view.

42. The computer-readable medium of claim 41 wherein the third viewing frustum includes boundaries and wherein one of the boundaries is being a boundary of the first viewing frustum and is not a boundary of the second viewing frustum in the given dimension.

43. The computer-readable medium of claim 42 wherein the first peripheral lens view and the second peripheral lens view are output to be positioned adjacent to the left side edge and right side edge of the main view, respectively.

44. The computer-readable medium of claim 42 wherein the main view has a top side edge and a bottom side edge and wherein the first peripheral lens view and the second peripheral lens view are output to be positioned adjacent to the top side edge and the bottom side edge of the main view, respectively.

45. The computer-readable medium of claim 42 wherein the second viewing frustum and the third viewing frustum are angularly offset relative to the first viewing frustum by a like angular magnitude.

46. In a computer system that includes a display device, a computer-readable medium holding computer-executable instructions for performing a method comprising the computer-implemented steps of:

modeling a three dimensional scene that includes at least one object;

adding a reflective object to the scene, said reflective object including a first portion for reflecting a main view of the scene and a second portion for reflecting a peripheral view of the scene, said second portion being angularly offset relative to said first portion;

identifying the main view of the scene and the peripheral view of the scene by performing environment mapping; and

displaying the identified main view of the scene and the identified peripheral view of the scene on the display device.

47. The computer-readable medium of claim 46 wherein the reflective object includes a third portion for reflecting an additional peripheral view of scene and wherein the method further comprises identifying the additional peripheral view of the scene by performing environment mapping and displaying the identified additional view of the scene on the display device along with the identified main view and the identified peripheral view.

48. The computer-readable medium of claim 46 wherein the method further comprises the step of dynamically altering a shape of the reflective object.

49. The computer-readable medium of claim 46 wherein the reflective object includes a curved surface.

50. In a computer system having a display device, a computer-readable medium holding computer-executable instructions for performing a method comprising the steps of:

providing a model of a three dimensional space that includes an object;

defining a main view of the scene that depicts a main portion of the scene;

providing a peripheral lens that provides a peripheral view of the scene that depicts a peripheral portion of the scene that is immediately adjacent to the main view; and

seamlessly rendering the main view with the peripheral view on the display device.

51. The computer-readable medium of claim 50 wherein the peripheral lens has a size and wherein the method further comprises the steps of dynamically altering the size of the peripheral lens and again rendering the main view with the peripheral view on the display device.

52. The computer-readable medium of claim 50, further comprising the step of no longer receiving the peripheral view so that the main view is rendered on the display device without the peripheral view.