A method is provided for the user-specific calibration of a display apparatus, wearable on the head of a user, for an augmented presentation, wherein A), in a basic calibration step, the position of the at least one eye is ascertained relative to the display apparatus in all three spatial directions in the state where the display apparatus is worn on the head of the user and said position is saved in the display apparatus as adjustment data in such a way that an image generating module of the display apparatus generates the image taking account of the adjustment data.

An approach for projecting light may be implemented using a acousto-optical depth switch that uses surface acoustic waves produced along a substrate to guide image light to different areas. The surface acoustic waves may be generated on a substrate using a transducer. Surface acoustic waves of different frequencies can guide image light onto different optical elements at different physical positions. The optical elements may be configured to show objects in an image at different distances from a viewer.

Embodiments disclose an augmented reality-based remote guidance method and apparatus, terminal, and storage medium. The method comprises the following steps: acquiring a two-dimensional video of a target scene, and sending the two-dimensional video to a remote terminal; if a guidance mode of the remote guidance is marking mode, acquiring two-dimensional pixel coordinates corresponding to a marked point in a marked image frame of the two-dimensional video at the remote terminal; determining current camera coordinates corresponding to the marked point, according to first three-dimensional coordinate estimation rules and the two-dimensional pixel coordinates, wherein the current camera coordinates are current three-dimensional space coordinates corresponding to the marked point in a camera coordinate system; and according to a presentation mode and the current camera coordinates rendering a three-dimensional virtual model corresponding to the marked point so as to display the three-dimensional virtual model in the target scene.

A digital loupe system is provided which can include a number of features. In one embodiment, the digital loupe system can include a stereo camera pair and a distance sensor. The system can further include a processor configured to perform a transformation to image signals from the stereo camera pair based on a distance measurement from the distance sensor and from camera calibration information. In some examples, the system can use the depth information and the calibration information to correct for parallax between the cameras to provide a multi-channel image. Ergonomic head mounting systems are also provided. In some implementations, the head mounting systems can be configurable to support the weight of a digital loupe system, including placing one or two oculars in a line of sight with an eye of a user, while improving overall ergonomics, including peripheral vision, comfort, stability, and adjustability. Methods of use are also provided.

Embodiments employ one or more ellipses to determine distance and location in relation to a camera. The captured images of ellipses are analyzed to determine the size of the major axes of the ellipses in the captured image. From the size of the major axis, using mathematics, the distance from the camera can be computed. This distance from the camera combined with the location of the center of the ellipse in the captured image may then be used to locate the ellipse in X-Y-Z space. The ellipses may be placed on articles attached to the body or head of a person, such as a hat or glasses.

The present disclosure relates to a near-eye display and a method for adjusting the brightness of a near-eye display. The near-eye display including a first display screen for displaying one of a left eye image and a right eye image, a second display screen for displaying the other of the left eye image and the right eye image, a detector configured to detect a first detected value indicating brightness of the first display screen and a second detected value indicating brightness of the second display screen, and a controller configured to adjust brightness of at least one of the first display screen and the second display screen based on the first detected value and the second detected value.

A method for processing 360-degree image data by a device for receiving a 360-degree video according to the present invention comprises the steps of: receiving 360-degree image data; obtaining information relating to an encoded picture and metadata from the 360-degree image data, wherein the metadata includes camera lens information; decoding a picture including a target circular area on the basis of the information relating to the encoded picture; and rendering the target circular area by processing same on the basis of the camera lens information.

Provided are stereoscopic eyeglasses capable of reducing visual fatigue in binocular stereoscopic display by a simple configuration. In stereoscopic eyeglasses, in order to expand a tolerance of match between vergence and accommodation enabling comfortable stereovision in eyeglasses-using stereoscopic display, wide-focus lenses ranging in focal length are incorporated so as to overlap optical filters in light transmission directions, and accordingly, visual fatigue to be caused by vergence-accommodation conflict during stereoscopic image observation is reduced.

An eyewear device that adjusts an on time and an off time of a pair of cameras to control heat of the cameras and of the eyewear device. Each of the pair of cameras has a duty cycle determining when the respective camera is on and off. A camera control chart contains the duty cycles. The eyewear may have a temperature sensor such that the on and off times of the cameras are a function of the temperature sensor.

Systems, methods, and computer-readable media for integrating and optimizing a surgical suite. An ophthalmic suite can include a surgical console, a heads-up display communicatively coupled with a surgical camera for capturing a three-dimensional image of an eye, and a surgical suite optimization engine. The surgical suite optimization engine can performs a wide variety of actions in response to action codes received from the other components in the surgical suite. The surgical suite optimization engine can be integrated within another component of the surgical suite, can be a stand-alone module, and can be a cloud-based tool.