CAMERA CALIBRATION
First Claim
1. A calibration system, comprising:
- a calibration apparatus comprising a plurality of light sources; and
a computing system communicatively coupled to the light sources, the computing system comprising a calibration module configured to;
selectively control the plurality of light sources to determine 3D to 2D correspondences relating 3D locations of the plurality of light sources in space to locations in a 2D image captured by a camera, anddetermine intrinsic properties of the camera using the 3D to 2D correspondences.
2 Assignments
0 Petitions
Accused Products
Abstract
Embodiments herein include systems, methods and articles of manufacture for calibrating a camera. In one embodiment, a computing system may be coupled to a calibration apparatus and the camera to programmatically identify the intrinsic properties of the camera. The calibration apparatus includes a plurality of light sources which are controlled by the computer system. By selectively activating one or more of the light sources, the computer system identifies correspondences that relate the 3D position of the light sources to the 2D image captured by the camera. The computer system then calculates the intrinsics of the camera using the 3D to 2D correspondences. After the intrinsics are measured, cameras may be further calibrated to in order to identify 3D locations of objects within their field of view in a presentation area. Using passive markers in a presentation area, computing system may use an iterative process that estimates the actual pose of the camera.
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Citations
29 Claims
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1. A calibration system, comprising:
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a calibration apparatus comprising a plurality of light sources; and a computing system communicatively coupled to the light sources, the computing system comprising a calibration module configured to; selectively control the plurality of light sources to determine 3D to 2D correspondences relating 3D locations of the plurality of light sources in space to locations in a 2D image captured by a camera, and determine intrinsic properties of the camera using the 3D to 2D correspondences. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9-21. -21. (canceled)
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22. A method for calibrating a camera, the method comprising:
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selectively controlling a plurality of light sources to determine 3D to 2D correspondences relating 3D locations of the plurality of light sources in space to locations in a 2D image captured by the camera, wherein the plurality of light sources are mounted on a calibration apparatus in view of the camera, and determining intrinsic properties of the camera using the 3D to 2D correspondences. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification