Display devices include waveguides with metasurfaces as in-coupling and/or out-coupling optical elements. The metasurfaces may be formed on a surface of the waveguide and may include a plurality or an array of sub-wavelength-scale (e.g., nanometer-scale) protrusions. Individual protrusions may include horizontal and/or vertical layers of different materials which may have different refractive indices, allowing for enhanced manipulation of light redirecting properties of the metasurface. Some configurations and combinations of materials may advantageously allow for broadband metasurfaces. Manufacturing methods described herein provide for vertical and/or horizontal layers of different materials in a desired configuration or profile.

Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing a program and a method for performing operations comprising: receiving, from a client device of a first user, a request from the first user to engage in an AR shopping experience curated by a store; identifying a first real-world product available for purchase from the store; receiving an image of a real-world environment of the first user; generating a first AR item that represents the first real-world product; comparing visual attributes of the first AR item to physical layouts of a plurality of real-world objects depicted in the image of the real-world environment; and overlaying the first AR item on a first real-world object of the plurality of real-world objects in the image responsive to comparing the visual attributes of the first AR item to the physical layouts of the plurality of real-world objects.

Various implementations disclosed herein include devices, systems, and methods that generates a three-dimensional (3D) model based on a selected subset of the images and depth data corresponding to each of the images of the subset. For example, an example process may include acquiring sensor data during movement of the device in a physical environment including an object, the sensor data including images of a physical environment captured via a camera on the device, selecting a subset of the images based on assessing the images with respect to motion-based defects based on device motion and depth data, and generating a 3D model of the object based on the selected subset of the images and depth data corresponding to each of the images of the selected subset.

Systems, methods and techniques for automatically recognizing two-dimensional real world objects with an augmented reality display device, and augmenting or enhancing the display of such real world objects by superimposing virtual images such as a still or video advertisement, a story or other virtual image presentation. In non-limiting embodiments, the real world object includes visible features including visible security features and a recognition process takes the visible security features into account when recognizing the object and/or displaying superimposed virtual images.

A human-computer interface system having an exoskeleton including a plurality of structural members coupled to one another by at least one articulation configured to apply a force to a body segment of a user, the exoskeleton comprising a body-borne portion and a point-of-use portion; the body-borne portion configured to be operatively coupled to the point-of-use portion; and at least one locomotor module including at least one actuator configured to actuate the at least one articulation, the at least one actuator being in operative communication with the exoskeleton.

An exemplary method includes maintaining a receiver-side mesh-vertices list, receiving duplicative-vertex information from a sender, and responsively reducing the receiver-side mesh-vertices list in accordance with the received duplicative-vertex information, and rendering, using the reduced receiver-side mesh-vertices list, viewpoint-adaptive three-dimensional (3D) personas of a subject at least in part by weighting video pixel colors from different video-camera vantage points of video cameras that capture video streams of the subject, the weighting being performed according to a respective geometric relationship of each video-camera vantage point to a user-selected viewpoint.

Methods and systems are provided for generating augmented reality (AR) scenes where the AR scenes include one or more artificial intelligence elements (AIEs) that are rendered as visual objects in the AR scenes. The method includes generating an AR scene for rendering on a display; the AR scene includes a real-world space and virtual objects projected in the real-world space. The method includes analyzing a field of view into the AR scene; the analyzing is configured to detect an action by a hand of the user when reaching into the AR scene. The method includes generating one or more AIEs rendered as virtual objects in the AR scene, each AIE is configured to provide a dynamic interface that is selectable by a gesture of the hand of the user. In one embodiment, each of the AIEs is rendered proximate to a real-world object present in the real-world space; the real-world object is located in a direction of where the hand of the user is detected to be reaching when the user makes the action by the hand.

Aspects of the subject disclosure may include, for example, a camera positioned to capture image information of an immersive experience presented to one or more users engaged in the immersive experience and located in an immersive experience space, a processing system and a memory that stores executable instructions to facilitate performance of operations including receiving the image information from the camera, detecting objects located in the immersive experience space with the one or more users, the objects including at least one virtual object created by the immersive experience, determining the at least one virtual object is a projected virtual object of the immersive experience, generating a signal indicating the at least one virtual object is a projected virtual object, and a projector, responsive to the signal, to provide a visual indication in the immersive experience space to identify the projected virtual object as a virtual object to the one or more users engaged in the immersive experience. Other embodiments are disclosed.

Four dimensional (4D) energy-field package assembly for projecting energy fields according to a 4D coordinate function. The 4D energy-field package assembly includes an energy-source system having energy sources capable of providing energy to energy locations, and energy waveguides for directing energy from the energy locations from one side of the energy waveguide to another side of the energy waveguide along energy propagation paths.

An AR-based supplementary teaching system for guzheng and method thereof, the system includes an AR device, a data processing device and positioning devices for key positions, the data processing device is signal-connected to the AR device, and the positioning devices is installed on the guzheng code of guzheng, the positioning devices corresponds to the guzheng code of guzheng one by one; the AR device is used to obtain real scene data; the data processing device is used to guzheng and the positioning devices identify and generate string distribution data; also used to obtain operation instruction based on user actions, execute the operation instruction and generate virtual data; the AR device is also used to convert all data based on the string distribution data The virtual data and the real scene data are superimposed and displayed.