Managing inputs at an information handling system by adaptive infrared illumination and detection
First Claim
Patent Images
1. An information handling system comprising:
- a processor operable to process information for presentation to a user as visual images;
memory interfaced with the processor and operable to store the information;
a graphics system interfaced with the processor and memory, the graphics system operable to generate the visual images at one or more display devices;
a display device interfaced with the graphics system and operable to present the visual images;
a camera aligned to capture an image proximate the visual images;
a first infrared light source operable to generate an infrared curtain along a surface proximate the visual images to aid surface touch input detection;
a second infrared light source operable to generate structured light above the infrared curtain to aid three dimensional object detection; and
a touch input module interfaced with the camera, the first infrared light source and the second infrared light source, the touch input module operable to analyze visual images captured by the camera and to selectively illuminate the first or second infrared light sources based upon the analyzing;
wherein the touch input module selectively interleaves illumination by the first and second infrared light sources based at least in part upon an end user hand position detected in a visual image captured by the camera.
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Abstract
A single camera detects user interactions with separate infrared light sources, such as structured light for three dimensional detection and an infrared curtain surface touch interactions. A touch input module monitors user interactions with a desktop surface, such as at a projected or display mat user interface presentation, and selectively illuminates the separate infrared light sources to support camera detection based upon the user interactions. For example, separate infrared light sources illumination in an interleaved manned at variable rates based upon analysis of visible light or structured light images captured by the camera.
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Citations
17 Claims
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1. An information handling system comprising:
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a processor operable to process information for presentation to a user as visual images; memory interfaced with the processor and operable to store the information; a graphics system interfaced with the processor and memory, the graphics system operable to generate the visual images at one or more display devices; a display device interfaced with the graphics system and operable to present the visual images; a camera aligned to capture an image proximate the visual images; a first infrared light source operable to generate an infrared curtain along a surface proximate the visual images to aid surface touch input detection; a second infrared light source operable to generate structured light above the infrared curtain to aid three dimensional object detection; and a touch input module interfaced with the camera, the first infrared light source and the second infrared light source, the touch input module operable to analyze visual images captured by the camera and to selectively illuminate the first or second infrared light sources based upon the analyzing; wherein the touch input module selectively interleaves illumination by the first and second infrared light sources based at least in part upon an end user hand position detected in a visual image captured by the camera. - View Dependent Claims (2, 3, 4)
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5. An information handling system comprising:
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a processor operable to process information for presentation to a user as visual images; memory interfaced with the processor and operable to store the information; a graphics system interfaced with the processor and memory, the graphics system operable to generate the visual images at one or more display devices; a display device interfaced with the graphics system and operable to present the visual images; a camera aligned to capture an image proximate the visual images; a first infrared light source operable to generate an infrared curtain along a surface proximate the visual images to aid surface touch input detection; a second infrared light source operable to generate structured light above the infrared curtain to aid three dimensional object detection; and a touch input module interfaced with the camera, the first infrared light source and the second infrared light source, the touch input module operable to analyze visual images captured by the camera and to selectively illuminate the first or second infrared light sources based upon the analyzing; wherein the touch input module selectively illuminates the first or second infrared light sources by interleaving the first and second infrared light sources and coordinating the camera to provide touch input detection during illumination by the first infrared light source and to provide three dimensional object detection during illumination by the second infrared light source. - View Dependent Claims (6)
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7. An information handling system comprising:
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a processor operable to process information for presentation to a user as visual images; memory interfaced with the processor and operable to store the information; a graphics system interfaced with the processor and memory, the graphics system operable to generate the visual images at one or more display devices; a display device interfaced with the graphics system and operable to present the visual images; a camera aligned to capture an image proximate the visual images; a first infrared light source operable to generate an infrared curtain along a surface proximate the visual images to aid surface touch input detection; a second infrared light source operable to generate structured light above the infrared curtain to aid three dimensional object detection; and a touch input module interfaced with the camera, the first infrared light source and the second infrared light source, the touch input module operable to analyze visual images captured by the camera and to selectively illuminate the first or second infrared light sources based upon the analyzing; wherein the display device comprises a projector aligned to project the visual images at a desktop surface and a capacitive mat disposed on the desktop surface, the touch input module interleaving illumination of the first and second infrared light sources at first and second rates based upon a determination of touches by an end user at the capacitive mat or at the desktop surface external to the capacitive mat. - View Dependent Claims (8)
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9. A method for adaptive infrared illumination to manage input detection at a user interface presented on a desktop surface, the method comprising:
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presenting a user interface on at a desktop surface, the user interface accepting end user inputs detected by a camera; capturing an image with the camera that includes at least a portion of the user interface; analyzing the captured interface to determine a first or second condition associated with the user interface; in response to determining the first condition, providing a first illumination setting for first and second infrared light sources; and in response to determining the second condition, providing a second illumination setting for the first and second infrared light sources wherein; the first condition comprises motion detected proximate the desktop surface; the first illumination setting comprises cycling on the first infrared light source aligned to illuminate an infrared curtain over the desktop surface at a first cycle rate; and the second illumination setting comprises cycling on the second infrared light source aligned to track three dimensional objects over the desktop surface at a second cycle rate. - View Dependent Claims (10, 11, 12)
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13. A method for adaptive infrared illumination to manage input detection at a user interface presented on a desktop surface, the method comprising:
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presenting a user interface on at a desktop surface, the user interface accepting end user inputs detected by a camera; capturing an image with the camera that includes at least a portion of the user interface; analyzing the captured interface to determine a first or second condition associated with the user interface; in response to determining the first condition, providing a first illumination setting for first and second infrared light sources; in response to determining the second condition, providing a second illumination setting for the first and second infrared light sources; monitoring the user interface with the camera to detect an absence of the first and second conditions; and in response to detecting the absence of the first and second conditions, turning off both the first and second infrared light sources.
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14. A method for adaptive infrared illumination to manage input detection at a user interface presented on a desktop surface, the method comprising:
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presenting a user interface on at a desktop surface, the user interface accepting end user inputs detected by a camera; capturing an image with the camera that includes at least a portion of the user interface; analyzing the captured interface to determine a first or second condition associated with the user interface; in response to determining the first condition, providing a first illumination setting for first and second infrared light sources; in response to determining the second condition, providing a second illumination setting for the first and second infrared light sources; monitoring the user interface to detect a proximity of the user'"'"'s hands to the desktop surface; and in response to the proximity, adjusting the rate at which the first infrared light source cycles on and off to illuminate an infrared curtain over the desktop surface. - View Dependent Claims (15)
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16. A system for adaptive infrared illumination to manage input detection at a user interface presented on a desktop surface, the system comprising:
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a camera aligned to capture an image proximate the desktop surface; a first infrared light source operable to generate an infrared curtain along the desktop surface proximate a user interface having touch inputs; a second infrared light source operable to generate structured light above the infrared curtain to aid three dimensional object detection; a touch input module interfaced with the camera, the first infrared light source and the second infrared light source, the touch input module operable to selectively illuminate the first or second infrared light sources based upon a predicted detection requirement; and a power manager interfaced with the touch input module, the power manager operable to monitor images captured by the camera and to selectively power off the first and second infrared light sources based upon the predicted detection requirement and a power management setting. - View Dependent Claims (17)
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Specification