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:
Jan. 05, 2021
Filed:
Aug. 28, 2014
Amazon Technologies, Inc., Reno, NV (US);
Joachim Sebastian Stahl, Sammamish, WA (US);
AMAZON TECHNOLOGIES, INC., Reno, NV (US);
Abstract
Cameras may be used to acquire information about objects in three-dimensional (3D) space. Described herein are techniques for determining a calibration between pixel coordinates in a two-dimensional image acquired by the camera and coordinates in the 3D space. In one implementation, the target assembly is positioned at a known 3D location and particular optical targets thereon having known 3D coordinates are activated sequentially. Images are acquired and processed to determine the pixel coordinates of the respective optical targets. Calibration data, such as a transformation matrix, is generated based on the information about which optical target is active in a given acquired image, the pixel coordinates of the optical target in that acquired image, and the known 3D coordinates of the individual optical target.