G02B2027/0198

Reprojection and wobulation at head-mounted display device

A head-mounted display device including one or more position sensors and a processor. The processor may receive a rendered image of a current frame. The processor may receive position data from the one or more position sensors and determine an updated device pose based on the position data. The processor may apply a first spatial correction to color information in pixels of the rendered image at least in part by reprojecting the rendered image based on the updated device pose. The head-mounted display device may further include a display configured to apply a second spatial correction to the color information in the pixels of the rendered image at least in part by applying wobulation to the reprojected rendered image to thereby generate a sequence of wobulated pixel subframes for the current frame. The display may display the current frame by displaying the sequence of wobulated pixel subframes.

WAVEGUIDES OF NEAR-EYE DISPLAY DEVICES FOR SUPPRESSING GHOST IMAGES
20170315356 · 2017-11-02 ·

Disclosed are an apparatus and method for reducing ghost image effects and rainbow effects in a near-eye display device. The near-eye display device includes an imager to generate an image based on light from a light source. The near-eye display device further includes at least one planar waveguide. The waveguide inputs light representing the image from the imager at an input surface and outputs the light representing the image toward an optical receptor of a user from an output surface. The waveguide is mounted in an opposite tilt angle. The tilt angle of the waveguide and grating periods of diffraction optical elements of the waveguide serve to reduce ghost image effects and rainbow effects.

Head mounted display device, image display system, and method of controlling head mounted display device
09805262 · 2017-10-31 · ·

A head mounted display device includes an image display unit that allows a user to visually recognize image light based on image data as a virtual image and allows the user to visually recognize an outside scenery when worn on a head of the user, an imaging unit that images the outside scenery, and a control unit that, when an imaged image contains a mark image as an image of a specific mark, allows the user to visually recognize the specific virtual image associated with a combination of a type of the mark image and a shape of the mark image using the image display unit.

Eye imaging in head worn computing
11487110 · 2022-11-01 · ·

Aspects of the present invention relate to methods and systems for imaging, recognizing, and tracking of a user's eye that is wearing a HWC. Aspects further relate to the processing of images reflected from the user's eye and controlling displayed content in accordance therewith.

DISPLAY CONTROL DEVICE

A display control device includes a determination unit and a controller. The determination unit determines whether or not a subject viewed from a passenger falls within a display range of a virtual image based on the position information of the subject acquired from a recognition unit that recognizes the subject in the foreground of a moving object and the estimated value of a depression angle acquired from an estimation unit that estimates the depression angle when the virtual image is viewed from the passenger. In a case where the subject is determined to fall within the display range, the controller controls a display unit to generate an image that represents a first display image showing the information corresponding to the subject.

AUTO-ALIGNER FOR VIRTUAL REALITY DISPLAY
20170336915 · 2017-11-23 ·

A method for aligning an image on a mobile device disposed within a head-mounted display (HMD) housing includes: detecting a request to align an image on a touchscreen of a mobile device; detecting, on the touchscreen, a first detected location corresponding to a first touchscreen input event; determining a first displacement of the first detected location with respect to a first target location of the first touchscreen input event; and transposing the image on the touchscreen based on the first displacement. A virtual reality system includes: a mobile device having a touchscreen configured to display an image; and a HMD housing having a first contact configured to generate a first input event at a first location on the touchscreen when the mobile device is disposed within the HMD housing.

Holographic real space refractive sequence
11253149 · 2022-02-22 · ·

A system and a method for holographic eye testing device are disclosed. The system renders one or more three dimensional objects within the holographic display device. The system updates the rendering of the one or more three dimensional objects within the holographic display device, by virtual movement of the one or more three dimensional objects within the level of depth. The system receives input from a user indicating alignment of the one or more three dimensional objects after the virtual movement. The system determines a delta between a relative virtual position of the one or more three dimensional objects at the moment of receiving input and an optimal virtual position and generates prescriptive remedy based on the delta.

Mixed-reality image capture

A head-mounted display includes a visible-light camera configured to collect a visible-light image of a physical space, a surface sensor configured to measure one or more surface parameters of the physical space, a see-through display configured to visually present an augmentation image while light from the physical space passes through the see-through display to a user eye, and an augmented-reality engine. The augmented-reality engine may be configured to identify a surface of the physical space from the one or more measured surface parameters, compose a mixed-reality image that includes the augmentation image overlaid on the visible-light image, and visually present, via the see-through display, the mixed-reality image in alignment with the identified surface.

Head worn display integrity monitor system and methods

A head worn display system (e.g., helmet mounted (HMD) display system, and an eye wear mounted display system,) can include a combiner, a head position sensor and a computer. The computer provides symbology in response to first sensor input values associated with the head position. The symbology can be conformal with a real world scene. A monitoring system includes a redundant head position sensor for providing second sensor input values associated with head position. The computer monitors for positional accuracy of the symbology by comparing symbology calculated using the first and second input sensor values or by using an inverse function to compare sensor values.

IMAGE DISPLAY
20170287342 · 2017-10-05 · ·

A method for displaying an image to a pilot (20) of an aircraft (2). The method comprises: displaying, by a helmet mounted display (HMD) (24), to the pilot (20), an image comprising initial image components including a first image component (34); determining that the helmet mounted display (24) is offset from a desired position for the helmet mounted display (24); determining, by one or more processors (26), a specification for a further image component (50); and displaying, by the helmet mounted display (24), to the pilot (20), an image comprising at least the first image component (34) and the further image component (50). The further image component (50) has a fixed position with respect to the first image component (34) and indicates one or more alternative positions for the first image component (34).