Head-mounted display device and computer program
US10242504B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2018 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Sep 6, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30204
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.