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公开(公告)号：US20180249142A1
公开(公告)日：2018-08-30
申请号：US15443709
申请日：2017-02-27
Applicant: Intel Corporation
Inventor： Richmond Hicks , Sundeep Raniwala
CPC classification number: H04N13/239 , G01B11/2504 , G01B11/2545 , G01B11/272 , G06T7/521 , G06T7/593 , G06T7/85 , G06T2207/10012 , G06T2207/10024 , G06T2207/10048 , H04N13/128 , H04N13/246 , H04N13/271 , H04N17/002 , H04N2013/0081
Abstract: Calibration in the field is described for stereo and other depth camera configurations using a projector One example includes imaging the first and the second feature in a first camera of the camera system wherein the distance from the first camera to the projector is known, imaging the first and the second feature in a second camera of the camera system, wherein the distance from the second camera to the projector is known, determining a first disparity between the first camera and the second camera to the first feature, determining a second disparity between the first camera and the second camera to the second feature, and determining an epipolar alignment error of the first camera using the first and the second disparities.
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公开(公告)号：US20170186146A1
公开(公告)日：2017-06-29
申请号：US14998149
申请日：2015-12-23
Applicant: Intel Corporation
Inventor： Sundeep Raniwala , Bidhan P. Chaudhuri , Anders Grunnet-Jepsen
CPC classification number: G06T7/85 , G01B11/2504 , G01B21/042 , G06K9/00335 , G06T7/521 , H01S5/183 , H04N5/232 , H04N5/33 , H04N13/246 , H04N13/25 , H04N2213/003
Abstract: A method and apparatus for performing inbuilt calibration of camera system that performs three-dimensional measurements and depth reconstruction are described. In one embodiment, the method includes displaying, using a projector of a capture device, a fiducial projection pattern in response to calibration of the capture device. The method may also include capturing, with a camera of the capture, an image of the fiducial projection pattern. The method may also include determining calibration coefficient values indicative of relative physical relationships of one or more components of the depth camera system based on analysis of the captured image of the fiducial projection pattern.
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公开(公告)号：US09978147B2
公开(公告)日：2018-05-22
申请号：US14998149
申请日：2015-12-23
Applicant: Intel Corporation
Inventor： Sundeep Raniwala , Bidhan P. Chaudhuri , Anders Grunnet-Jepsen
CPC classification number: G06T7/85 , G01B11/2504 , G01B21/042 , G06K9/00335 , G06T7/521 , H01S5/183 , H04N5/232 , H04N5/33 , H04N13/246 , H04N13/25 , H04N2213/003
Abstract: A method and apparatus for performing inbuilt calibration of camera system that performs three-dimensional measurements and depth reconstruction are described. In one embodiment, the method includes displaying, using a projector of a capture device, a fiducial projection pattern in response to calibration of the capture device. The method may also include capturing, with a camera of the capture, an image of the fiducial projection pattern. The method may also include determining calibration coefficient values indicative of relative physical relationships of one or more components of the depth camera system based on analysis of the captured image of the fiducial projection pattern.
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