Head-mounted display device and method thereof
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJosé Araújo, Soma Tayamon
Life of this patent
Estimating the term…
Abstract
A head-mounted display device (HMD) (100) configured to be worn by a user (121) is provided. The HMD comprises an at least partially see-through display (101), a front-facing camera (102) operative to capture a first image of a real-world scene, and processing means (104) which is operative to select a calibration object from one or more real-world objects, or parts thereof, (130-135) which are visible in the first image, and derive a calibration transformation for calculating a display position based on a real-world position, such that a virtual object which is displayed on the display at the display position is aligned with a corresponding real-world object located at the real-world position, as seen by the user.
Claims18
A head-mounted display device configured to be worn by a user, the display device comprising:
- a wireless-communications interface;
- an at least partially see-through display;
- a front-facing camera configured to capture a first image of a real-world scene, wherein one or more real-world objects or parts thereof are visible in the first image;
- and
- a processor configured to:
- identify, using the wireless-communications interface, a communications device that has a display that is visible in the first image;
- select graphical content on the display of the communications device to use as a calibration object;
- and
- derive, based on the calibration object, a calibration transformation for calculating a display position on the display of the head-mounted display device, based on a real-world position, such that a virtual object which is displayed on the display of the head-mounted display device at the display position is aligned with a corresponding real-world object located at the real-world position, as seen by the user.
A method performed by a head-mounted display device configured to be worn by a user, the method comprising:
- identifying, using a wireless-communications interface of the head-mounted display device, a communications device having a display that is visible in a first image of a real-world scene, the first image captured by a front-facing camera comprised in the head-mounted display device;
- selecting, as a calibration object, graphical content displayed on the display of the communications device;
- and
- deriving, using the calibration object, a calibration transformation for calculating a display position on an at least partially see-through display of the head-mounted display device, based on a real-world position, such that a virtual object which is displayed at the display position on the display of the head-mounted display device is aligned with a corresponding real-world object located at the real-world position, as seen by the user.
Dependencies are inferred from the claim text.