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:
Mar. 26, 2019
Filed:
Sep. 06, 2018
Seiko Epson Corporation, Tokyo, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A head-mounted display device includes an image display having an optical element to transmit light from an outside scene, a display element to display an image, a camera, a memory configured to store data of a marker image, and one or more processors. The one or more processors display an image on the image display and derive at least one of a camera parameter of the camera and a spatial relationship, based at least on an image that is captured by the camera in a condition that allows a user to visually perceive that the marker image displayed by the image display and a real marker corresponding to the marker image align at least partially with each other. The real marker includes a first set of feature elements within a rectangle, and the marker image includes a second set of feature elements.