A head-mounted display device is disclosed that includes an at least partially see-though display, a processor, and a non-volatile storage device holding instructions executable by the processor to: select an image that corresponds to a physical object viewable by the user; display the image at a perceived offset to the physical object; in response to alignment user input, move a perceived position of the image relative to the physical object; output an instruction to provide completion user input when the image appears to align with the physical object; when the completion user input is received, determine the inter-pupillary distance of the user; and calibrate the head mounted display device based on the inter-pupillary distance.

A method for calibrating an augmented reality visual rendering system comprising at least one display device partially transparent with respect to the user thereof, comprises carrying out the steps of: displaying a two-dimensional calibration curve on a partially transparent display device of the partially transparent display device; recording a three-dimensional curve described by the user by a three-dimensional pointing device so that the trajectory described by the three-dimensional pointing device is aligned, according to the viewpoint of the user, with the two-dimensional calibration curve displayed on the display device; and matching the three-dimensional curve and the two-dimensional calibration curve displayed on the display device; and comprising a step of calibrating the augmented reality visual rendering system by determining the parameters of a model to represent the set comprising the eye of the user 1 and the partially transparent display device of the partially transparent display device at which the eye is looking, on the basis of matching.

A system for displaying, on a see-through display located within a moving platform, a frame, while at least partially correcting a rolling display effect.

Certain aspects of a novel weapon sight system combine a direct view, a visible light video view, and an infrared (IR) video view mode. Each of the view modes may be viewed individually or simultaneously with one or more of the other view modes through a single viewing aperture. Further, the one or more view-modes may be provided while providing a bore-sighted reticle superimposed on the selected view. Further, the reticle may be powered separately from the video view electronics enabling use of the reticle regardless of the power status video view electronics.

A virtual/augmented reality head-mounted display system and method with means to correct optical aberrations is disclosed. The system includes the initial profiling of the head-mounted display system and eye-tracking means.

A system for facilitating the identifying of correspondences between images experiencing motion blur obtains a reference frame captured by a reference camera at a reference camera and obtains a match frame captured by a match camera at a match camera timepoint. The system identifies a motion attribute that includes (1) a reference camera motion attribute associated with the reference camera at the reference camera timepoint, and/or (2) a match camera motion attribute associated with the match camera at the match camera timepoint. The system determines a downsampling resolution using at least as inputs at least one of: the motion attribute, a camera exposure time, a camera field of view, or a camera angular resolution. The system generates a downsampled reference frame and a downsampled match frame based on the downsampling resolution. The system identifies correspondences between the downsampled reference frame and the downsampled match frame.

Augmented reality systems and methods for automatically repositioning a virtual object with respect to a destination object in a three-dimensional (3D) environment of a user are disclosed. The systems and methods can automatically attach the target virtual object to the destination object and re-orient the target virtual object based on the affordances of the virtual object or the destination object. The systems and methods can also track the movement of a user and detach the virtual object from the destination object when the user's movement passes a threshold condition.

Disclosure herein concerns a method that includes illuminating a user's eye with an illumination source in a head-worn display, capturing an image of the user's eye with an eye camera in the head-worn display, wherein the image includes an eye glint produced by light from the illumination source that is reflected from a surface of the user's eye, determining a size of an eye glint in the captured image, and identifying a change in focus distance for the user's eye in correspondence with a change in the size of the eye glint.

Disclosure herein concerns a method that includes illuminating a user's eye with an illumination source in a head-worn display, capturing an image of the user's eye with an eye camera in the head-worn display, wherein the image includes an eye glint produced by light from the illumination source that is reflected from a surface of the user's eye, determining a size of an eye glint in the captured image, and identifying a change in focus distance for the user's eye in correspondence with a change in the size of the eye glint.

A helmet mounted display system is described. A visor has an inner reflective surface and is mountable to head gear. A light source is arranged to emit light. Directing optics are arranged to image light from the light source onto the inner reflective surface of the visor to provide a reticle image on the inner reflective surface of the visor. An eye tracker is configured to determine the orientation of an eye of a wearer of the head gear. A controller is configured to receive an indication of the determined orientation of the eye, and to control the at least one actuator to change the orientation and shape of the directing optics to change the position of reticle image based on the indication of the determined orientation of the eye such that the eye views the reticle image.