Display of shadows via see-through display
First Claim
1. A method of operating an optical see-through display device having a see-through display screen and a camera, the method comprising:
- displaying on the see-through display screen an image of an object; and
while displaying the image of the object, displaying an image of a shadow cast by the object onto a real-world background scene byacquiring via the camera an image of the real-world background scene viewable through the see-through display screen,determining a location of the shadow in the image of the real-world background scene,rendering the image of the real-world background scene to form an enhanced image of the real-world background scene by increasing a brightness of the real-world background scene in the enhanced image of the real-world background scene in a region adjacent to the shadow compared to a brightness within the shadow, anddisplaying via the see-through display screen the enhanced image of the real-world background scene over and aligned with the real-world background scene.
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Accused Products
Abstract
Various embodiments are disclosed that relate to the presentation of images of shadows cast over a real-world background by images of objects displayed on a see-through display. For example, one disclosed embodiment provides a method of operating a display device having a see-through display screen. The method comprises displaying on the see-through display screen an image of an object, and while displaying the image of the object, displaying an image of a shadow cast by the object onto the background scene by acquiring an image of a background scene, determining a location of the shadow in the image of the background scene, rendering an enhanced image of the background scene by increasing a relative brightness in a region adjacent to the shadow compared to a brightness within the shadow, and displaying the enhanced image of the background scene.
41 Citations
19 Claims
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1. A method of operating an optical see-through display device having a see-through display screen and a camera, the method comprising:
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displaying on the see-through display screen an image of an object; and while displaying the image of the object, displaying an image of a shadow cast by the object onto a real-world background scene by acquiring via the camera an image of the real-world background scene viewable through the see-through display screen, determining a location of the shadow in the image of the real-world background scene, rendering the image of the real-world background scene to form an enhanced image of the real-world background scene by increasing a brightness of the real-world background scene in the enhanced image of the real-world background scene in a region adjacent to the shadow compared to a brightness within the shadow, and displaying via the see-through display screen the enhanced image of the real-world background scene over and aligned with the real-world background scene. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An optical see-through head-mounted display system, comprising:
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a see-through display screen; an image production system configured to display an image on the see-through display screen; an image sensor configured to acquire an image of a real-world background scene viewable through the see-through display screen; a logic subsystem; and a data-holding subsystem comprising instructions executable by the logic subsystem to display an image of an object on the see-through display screen; and while displaying the image of the object, display an image of a shadow cast by the object onto the real-world background scene by acquiring via the image sensor the image of the real-world background scene viewable through the see-through display screen, determining a location of the shadow in the image of the real-world background scene, rendering the image of the real-world background scene to form an enhanced image of the real-world background scene in which a brightness of the real-world background scene in the enhanced image of the real-world background scene in a region adjacent to the shadow is increased compared to a brightness within the shadow, and displaying the enhanced image of the real-world background scene on the see-through display screen over and aligned with the real-world background scene. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. On an optical see-through head-mounted display system comprising a see-through display screen, a camera, and a neutral density filter, a method of displaying an image of an object and an image of a shadow of the object over a real-world background scene viewable through the see-through display screen, the method comprising:
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displaying on the see-through display screen the image of the object; reducing an amount of ambient light passing through the see-through display screen via the neutral density filter; and while displaying the image of the object, displaying an image of a shadow of the object onto the real-world background scene by acquiring via the camera an image of the real-world background scene viewable through the see-through display screen, determining a location of the shadow in the image of the real-world background scene, rendering the acquired image of the real-world background scene to form an enhanced image of the real-world background scene by increasing a brightness of the real-world background scene in the enhanced image of the real-world background scene in non-shadow regions of the image and not increasing a brightness within the shadow, and displaying the enhanced image of the real-world background scene on the see-through display screen over and aligned with the real-world background scene such that light is added to the non-shadow regions. - View Dependent Claims (18, 19)
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Specification