Head-mountable apparatus and systems
First Claim
Patent Images
1. A head mountable display (HMD) comprising:
- an infrared light source configured to illuminate foreground objects but not background objects greater than a threshold distance from the HMD, the infrared light source being configured to provide illumination for successive intervals of time separated by intervals during which the infrared light source does not provide illumination;
one or more cameras configured to capture infrared illuminated images and visible light illuminated images, the one or more cameras being configured to capture the infrared illuminated images during the intervals in which the infrared light source provides illumination and configured to capture the visible light illuminated images during the intervals in which the infrared light source does not provide illumination; and
an image processor configured to detect, from the infrared illuminated images, foreground objects in the visible light illuminated images;
in which the one or more cameras comprise a single camera and a light-directing arrangement for directing infrared and visible light to different image regions of the single camera.
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Abstract
A head mountable display (HMD) comprises an infrared light source operable to illuminate foreground objects but not background objects greater than a threshold distance from the HMD; one or more cameras operable to capture infrared illuminated images and visible light illuminated images; and an image processor operable to detect, from the infrared illuminated images, foreground objects in the visible light illuminated images.
8 Citations
13 Claims
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1. A head mountable display (HMD) comprising:
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an infrared light source configured to illuminate foreground objects but not background objects greater than a threshold distance from the HMD, the infrared light source being configured to provide illumination for successive intervals of time separated by intervals during which the infrared light source does not provide illumination; one or more cameras configured to capture infrared illuminated images and visible light illuminated images, the one or more cameras being configured to capture the infrared illuminated images during the intervals in which the infrared light source provides illumination and configured to capture the visible light illuminated images during the intervals in which the infrared light source does not provide illumination; and an image processor configured to detect, from the infrared illuminated images, foreground objects in the visible light illuminated images; in which the one or more cameras comprise a single camera and a light-directing arrangement for directing infrared and visible light to different image regions of the single camera. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of operation of a head mountable display (HMD), the method comprising the steps of:
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illuminating, using an infrared light source, foreground objects but not background objects greater than a threshold distance from the HMD, the illuminating step comprising the infrared light source providing illumination for successive intervals of time separated by intervals during which the infrared light source does not provide illumination; capturing infrared illuminated images and visible light illuminated images, the capturing step comprising capturing the infrared illuminated images during the intervals in which the infrared light source provides illumination and capturing the visible light illuminated images during the intervals in which the infrared light source does not provide illumination; and detecting, from the infrared illuminated images, foreground objects in the visible light illuminated images; in which the capturing step comprises providing a single camera and a light-directing arrangement for directing infrared and visible light to different image regions of the single camera. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification