The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2019
Filed:
Apr. 11, 2016
Hewlett-packard Development Company, L.p., Fort Collins, CO (US);
Stephen Pollard, Bristol, GB;
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Abstract
A computing system includes a projector, a camera, a calibration target, and a processor. The calibration target has known dimensions and four corners in a fixed position relative to both the projector and the camera. The processor causes the projector to project a calibration image having four corners and a repetitive pattern. The processor further causes the camera to capture a captured image of the calibration image and determine a rotation and translation that brings the four corners of the captured image into correspondence with the four corners of the calibration target and identify internal corner points of the repetitive pattern. The processor further selects an intrinsic parameter value and calibrates a 3D coordinate system of at least one of the camera and the projector to the calibration target using the selected intrinsic parameter value, the rotation and translation, and the internal corner points.