Abstract: A system for facilitating binocular vertical display misalignment correction based on vergence angle is configurable to determine a vertical fusional amplitude indicator associated with user operation of a stereoscopic display system, and, based on the vertical fusional amplitude indicator, determine one or more correction application attributes. The one or more correction application attributes indicate a manner of applying one or more display misalignment correction operations to align presentation of content in the stereoscopic display system. The system is also configurable to apply the one or more display misalignment correction operations to align the presentation of the content in the stereoscopic display system in accordance with the one or more correction application attributes, thereby effectuating display misalignment correction in a manner that mitigates user discomfort and/or user experience disruption.

Abstract: Examples are disclosed that relate to a mixed-reality device having improved dark adaptation to see in dark ambient lighting conditions. In one example, a mixed-reality device includes an eye tracker, a near-eye display, a logic subsystem, and a storage subsystem. The eye tracker is configured to determine a position of an eye. The storage subsystem holds instructions executable by the logic subsystem to generate an image frame including a plurality of pixels, wherein each pixel has a native luminance level, map the position of the eye to the image frame, adjust luminance levels of pixels of the image frame as a function of angle relative to the position of the eye mapped to the image frame and based at least on a rod and cone anatomy of the eye to generate a luminance-adjusted image frame, and render, via the near-eye display, the luminance-adjusted image frame.

Abstract: Techniques for determining a user's IPD are described. A first stimulus is displayed on a first display, and a second stimulus is displayed on a second display. A stimulus separation distance is a distance that exists between the first and second stimuli. The stimulus separation distance is progressively increased by progressively moving, in opposing directions relative to one another, the first and second stimuli. While that distance is being progressively increased, at least one of the user's eyes is tracked. While the distance is being progressively increased, a change in a rate of eye movement for the user's eye is detected. When the change is detected, a value for the stimulus separation distance is recorded. The recorded value is set as a baseline for the user's IPD.

Abstract: Examples are disclosed that relate to systems and methods for correcting vertical misalignment in a binocular display system. One example provides a head-mounted display device, comprising a binocular display system comprising a left eye display and a right eye display, the binocular display system configured to display image content; a display misalignment detection system; and a controller. The controller is configured to receive a signal from the display misalignment detection system comprising information related to a vertical misalignment between the left eye display and the right eye display, analyze the image content to determine image content information, determine a vertical misalignment correction strategy based at least upon the image content information and the vertical misalignment, and based upon the vertical misalignment correction strategy, control the binocular display system to correct the vertical misalignment.

Abstract: Techniques for adjusting a separation distance between stimuli generated by a pair of rendering cameras to accommodate an IPD of a user who is viewing the stimuli are disclosed. The IPD of the user is determined. A first stimulus, which is generated by a first one of the rendering cameras, is accessed. A second stimulus, which is generated by a second one of the rendering cameras, is accessed. The separation distance between the first stimulus and the second stimulus is determined. The separation distance is then reduced, resulting in the separation distance being narrower than the user's IPD. The first and second stimuli are then displayed in accordance with the reduced separation distance.

Abstract: Techniques for correcting a vertical angular image misalignment in stereoscopic images generated by an extended reality (ER) system are disclosed. A hologram is identified. This hologram is displayed in a scene of the ER system. A spatial frequency of the hologram is determined. A determination is made that the spatial frequency exceeds a spatial frequency threshold. The spatial frequency of the hologram is reduced until the spatial frequency is below the spatial frequency threshold. Such an operation results in a compensation being performed for a vertical angular image misalignment that exists between the stereoscopic images.

Abstract: Techniques for linking a distance used during a reprojection operation with a focal length of a sensing system are disclosed. As a result, modifications to the focal length result in corresponding modifications to the distance. A focal length of the sensing system is adjusted. An image generated by the sensing system is accessed. A particular distance is selected based on the adjusted focal length of the sensing system. The distance is used to reproject the image.

Abstract: Techniques for triggering a correction to a binocular image misalignment in an ER system are disclosed. Triggering this correction is based on detected activity in a scene in which the ER system is operating. A first hologram is displayed. User activity is detected, but this activity is below a threshold level. A first correction algorithm is selected and is designed to achieve uninterrupted performance with respect to the first hologram. The first correction algorithm is triggered, resulting in correction of binocular image misalignment. Subsequently, second user activity is detected. This second user activity is associated with a second hologram. A second correction algorithm is selected and is designed to achieve accurate performance with respect to the second hologram. The second correction algorithm is executed, resulting in correction of the binocular image misalignment.

Abstract: Techniques for triggering a correction to a binocular image misalignment in an ER system are disclosed. Triggering this correction is based on detected activity in a scene in which the ER system is operating. A first hologram is displayed. User activity is detected, but this activity is below a threshold level. A first correction algorithm is selected and is designed to achieve uninterrupted performance with respect to the first hologram. The first correction algorithm is triggered, resulting in correction of binocular image misalignment. Subsequently, second user activity is detected. This second user activity is associated with a second hologram. A second correction algorithm is selected and is designed to achieve accurate performance with respect to the second hologram. The second correction algorithm is executed, resulting in correction of the binocular image misalignment.

Abstract: A method for correcting vertical misalignment in a binocular display system comprises receiving a signal from a misalignment detection system comprising information related to vertical misalignment between a left eye display and a right eye display of the binocular display system. Image content displayed via the binocular display system is analyzed to determine a distance to a foreground virtual object in the image content at which a user is gazing. The method further comprises analyzing depth image data to determine a distance to a background object in a real-world environment. A vertical misalignment correction strategy is determined based at least upon the distance to the foreground virtual object and the distance to the background object. Based upon the vertical misalignment correction strategy, the binocular display system is controlled to correct the vertical misalignment.

Abstract: Examples are disclosed that relate to systems and methods for correcting vertical misalignment in a binocular display system. One example provides a head-mounted display device, comprising a binocular display system comprising a left eye display and a right eye display, the binocular display system configured to display image content; a display misalignment detection system; and a controller. The controller is configured to receive a signal from the display misalignment detection system comprising information related to a vertical misalignment between the left eye display and the right eye display, analyze the image content to determine image content information, determine a vertical misalignment correction strategy based at least upon the image content information and the vertical misalignment, and based upon the vertical misalignment correction strategy, control the binocular display system to correct the vertical misalignment.

Abstract: Techniques for determining a user's IPD are described. A first stimulus is displayed on a first display, and a second stimulus is displayed on a second display. A stimulus separation distance is a distance that exists between the first and second stimuli. The stimulus separation distance is progressively increased by progressively moving, in opposing directions relative to one another, the first and second stimuli. While that distance is being progressively increased, at least one of the user's eyes is tracked. While the distance is being progressively increased, a change in a rate of eye movement for the user's eye is detected. When the change is detected, a value for the stimulus separation distance is recorded. The recorded value is set as a baseline for the user's IPD.

Abstract: A method of operation of a display device for controlling brightness adaptation comprises (a) receiving a position signal that varies in dependence on a position of a fovea of an eye; (b) receiving a brightness signal that varies in dependence on brightness external to the display device; and (c) projecting a color image into the eye over a range of angles that varies in dependence on the position signal and on the brightness signal, such that when the brightness is below a predetermined threshold the color image is confined to the retinal target area.

Abstract: Techniques for triggering a correction to a binocular image misalignment in an ER system are disclosed. Triggering this correction is based on detected activity in a scene in which the ER system is operating. A first hologram is displayed. User activity is detected, but this activity is below a threshold level. A first correction algorithm is selected and is designed to achieve uninterrupted performance with respect to the first hologram. The first correction algorithm is triggered, resulting in correction of binocular image misalignment. Subsequently, second user activity is detected. This second user activity is associated with a second hologram. A second correction algorithm is selected and is designed to achieve accurate performance with respect to the second hologram. The second correction algorithm is executed, resulting in correction of the binocular image misalignment.

Abstract: Techniques for facilitating calibration of an IPD for an ER system are disclosed. A current IPD setting for the ER system is determined. An object in a scene is selected. A first distance between the ER system and the object is determined. A hologram is generated, where this hologram includes at least one boundary region that corresponds to at least one boundary region of the object. The hologram is displayed in the scene. The hologram is displayed based on the current IPD setting for the ER system. User input adjusts the current IPD setting such that a new IPD setting is provided to the ER system. The hologram is displayed in the scene based on the new IPD setting. Based on the new IPD setting, the hologram is caused to align with the object, thereby calibrating the IPD setting.

Abstract: A system for facilitating binocular vertical display misalignment correction based on vergence angle is configurable to determine a vertical fusional amplitude indicator associated with user operation of a stereoscopic display system, and, based on the vertical fusional amplitude indicator, determine one or more correction application attributes. The one or more correction application attributes indicate a manner of applying one or more display misalignment correction operations to align presentation of content in the stereoscopic display system. The system is also configurable to apply the one or more display misalignment correction operations to align the presentation of the content in the stereoscopic display system in accordance with the one or more correction application attributes, thereby effectuating display misalignment correction in a manner that mitigates user discomfort and/or user experience disruption.

Abstract: A system for facilitating display misalignment correction includes one or more processors and one or more hardware storage devices storing instructions that are executable by the one or more processors to configure the system to (i) determine one or more user activity attributes associated with user operation of a stereoscopic display system, (ii) based on the one or more user activity attributes, determine one or more correction application attributes, the one or more correction application attributes indicating a manner of applying one or more display misalignment correction operations to align presentation of content in the stereoscopic display system, and (iii) apply the one or more display misalignment correction operations to align the presentation of the content in the stereoscopic display system in accordance with the one or more correction application attributes, thereby effectuating display misalignment correction in a manner that mitigates user discomfort.