Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying live scenes including one or more three-dimensional (3D) objects are provided. In one aspect, a method includes: optically generating an optical hologram of a live scene that comprises one or more three-dimensional (3D) objects; capturing sequential optical holograms of the live scene and generating sequential hologram data associated with the sequential optical holograms of the live scene, each optical hologram being associated with respective hologram data; and reconstructing the live scene in a 3D space based on at least part of the sequential hologram data.

Abstract: Various embodiments for customizing a user interface based on user capabilities are described herein. An embodiment operates by determining a biometric of a user representing a characteristic of a finger size of the user based on an interaction performed by the user. It is determined that the biometric of the user indicates an ability of the user to navigate a user interface with one or more different features based on an ability of the user to interact with at least one existing feature of the user interface. Based on the determined biometric an identity of the user is determined. The determined identity of the user is verified by performing one or more verification actions subsequent to the determining the identity of the user. The user interface is customized, one or more different features corresponding to the finger size of the user are displayed.

Abstract: Methods, apparatus, devices, subsystems, and systems related to irregular devices and methods for designing and fabricating the irregular devices are provided. In one aspect, a device includes: a backplane comprising a plurality of circuits and a plurality of elements arranged on the backplane. Each of the plurality of elements includes a metallic electrode. Each of the metallic electrodes is coupled to a respective circuit of the plurality of circuits in the backplane through a corresponding via of a plurality of vias, and a position relationship between the metallic electrode and the corresponding via satisfies one or more criteria.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, a method includes: obtaining primitive data of a plurality of primitives corresponding to an object, and adjusting the primitive data of the plurality of primitives to generate a gap between adjacent primitives of the plurality of primitives.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying live scenes including one or more three-dimensional (3D) objects are provided. In one aspect, a system includes a holographic capturing system and a holographic display system. The holographic capturing system includes: an optical system configured to generate an optical hologram of a live scene that comprises one or more three-dimensional (3D) objects, and an optical sensor configured to capture sequential optical holograms of the live scene and output sequential hologram data associated with the sequential optical holograms of the live scene, each optical hologram being associated with respective hologram data. The holographic display system is configured to optically reconstruct the live scene in a 3D space based on at least part of the sequential hologram data.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, a system includes: a display having a plurality of display elements and a driving device coupled to the driving device and configured to: obtain a hologram for the display, wherein the hologram comprises, for each display element of the plurality of display elements, a respective sum of electromagnetic (EM) field contributions of a plurality of primitives corresponding to at least one object to the display element; and generate, for each display element of the plurality of display elements, a respective modulation control signal based on the respective sum of EM field contributions of the plurality of primitives to the display element.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, an optical device includes: an optical guiding device configured to guide light to propagate along a first direction within the optical guiding device, the light including multiple colors of light; an in-coupling diffractive structure configured to diffract the light to propagate in the optical guiding device; and a plurality of out-coupling diffractive structures arranged downstream of the in-coupling diffractive structure along the first direction and configured to diffract at least part of the light out of the optical guiding device along a second direction different from the first direction. The optical device can be configured for at least one of: color crosstalk suppression among the multiple colors of light, display zero order light suppression, dispersion compensation, or ambient light blocking.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, a device includes a plurality of elements arranged in rows and columns and a controller coupled to the plurality of elements, the controller comprising a plurality of driving circuits and a plurality of row scanners. Each of the plurality of elements is coupled to a respective driving circuit of the plurality of driving circuits. The plurality of row scanners include a row scanner having a series of selectors that are arranged in a column between two adjacent columns of elements, each selector of the series of selectors being configured to select a corresponding row of elements through corresponding driving circuits coupled to the corresponding row of elements.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. A system includes a display and a controller. The display includes: a backplane having a plurality of circuits and a plurality of display elements arranged on the backplane. The plurality of display elements form an irregular pattern. Each of the plurality of display elements is coupled to a respective circuit of the plurality of circuits. The controller is coupled to the display and configured to transmit at least one control signal to at least one display element of the display for modulating at least one property of the at least one display element.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, a device includes: an optical guiding device configured to guide light to propagate along a first direction within the optical guiding device, an in-coupling diffractive structure configured to diffract the light to propagate in the optical guiding device, and one or more out-coupling diffractive structures arranged downstream the in-coupling diffractive structure along the first direction and configured to diffract at least part of the light out of the optical guiding device along a second, different direction. The in-coupling diffractive structure is configured to cause a first optical dispersion for the light, and at least one out-coupling diffractive structure is configured to cause a second optical dispersion for the light.

Abstract: A method for authenticated asset assessment is provided. The method involves executing a scan assistant on an asset to allow a remote scan engine to execute one or more scan operations on the asset for determining a state of the asset. The scan assistant may verify the identity of the scan engine by checking that a certificate received from the scan engine is signed with a private key associated with the scan engine. In some embodiments, the authentication may be performed as part of a TLS handshake process that establishes a TLS connection between the scan engine and the scan assistant. Once the scan engine is authenticated, the scan engine may communicate with the scan assistant according to a communication protocol to collect data about the asset. Advantageously, the disclosed technique reduces security risks associated with authenticated scans and improves the performance of authenticated scans.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, a device includes at least one processor and at least one memory coupled to the at least one processor and having instructions executable by the at least one processor to perform operations including: obtaining primitive data of a plurality of primitives corresponding to at least one object based on information of the plurality of primitives, the information of the plurality of primitives comprising respective primitive identifiers of the plurality of primitives; for each primitive of the plurality of primitives, determining an electromagnetic (EM) field contribution to each of a plurality of display elements of a display based on primitive data of the primitive; and for each of the plurality of display elements of the display, generating a sum of the EM field contributions of the plurality of primitives to the display element.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying live scenes including one or more three-dimensional (3D) objects are provided. In one aspect, a method includes capturing optical holograms of a live scene, digitizing/processing the optical holograms, and holographically reconstructing the live scene based on the digitized/processed holograms. In another aspect, a method includes capturing images/videos of a live scene, computing corresponding holograms, and holographically reconstructing the live scene based on the computed holograms.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, a system includes a display and a controller. The display includes: a backplane having a plurality of circuits and a plurality of display elements arranged on the backplane. The plurality of display elements form an irregular pattern. Each of the plurality of display elements is coupled to a respective circuit of the plurality of circuits. The controller is coupled to the display and configured to transmit at least one control signal to at least one display element of the display for modulating at least one property of the at least one display element.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, a computer-implemented method of manipulating data of a plurality of primitives corresponding to at least one object includes: for each of a plurality of vertices of the plurality of primitives, associating a respective vertex identifier of the vertex with respective vertex data of the vertex, and storing the association between the respective vertex identifier and the respective vertex data of the vertex in a memory; and for each of the plurality of primitives, associating a respective primitive identifier of the primitive with one or more respective vertex identifiers of one or more vertices of the primitive in the memory, and storing an association between the respective primitive identifier and the one or more respective vertex identifiers for the primitive in the memory.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying live scenes including one or more three-dimensional (3D) objects are provided. In one aspect, a system includes a holographic capturing system and a holographic display system. The holographic capturing system includes: an optical system configured to generate an optical hologram of a live scene that comprises one or more three-dimensional (3D) objects, and an optical sensor configured to capture sequential optical holograms of the live scene and output sequential hologram data associated with the sequential optical holograms of the live scene, each optical hologram being associated with respective hologram data. The holographic display system is configured to optically reconstruct the live scene in a 3D space based on at least part of the sequential hologram data.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, a system includes a display and a controller. The display includes: a backplane having a plurality of circuits and a plurality of display elements arranged on the backplane. The plurality of display elements form an irregular pattern. Each of the plurality of display elements is coupled to a respective circuit of the plurality of circuits. The controller is coupled to the display and configured to transmit at least one control signal to at least one display element of the display for modulating at least one property of the at least one display element.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, an optical device includes: an optical guiding device configured to guide light to propagate along a first direction within the optical guiding device; an in-coupling diffractive structure configured to diffract the light to propagate in the optical guiding device; and out-coupling diffractive structures configured to diffract at least part of the light out of the optical guiding device along a second direction different from the first direction. The out-coupling diffractive structures are configured to have gradually increased diffraction efficiencies for the light along the first direction away from the in-coupling diffractive structure.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying live scenes including one or more three-dimensional (3D) objects are provided. In one aspect, a method includes capturing optical holograms of a live scene, digitizing/processing the optical holograms, and holographically reconstructing the live scene based on the digitized/processed holograms. In another aspect, a method includes capturing images/videos of a live scene, computing corresponding holograms, and holographically reconstructing the live scene based on the computed holograms.

Abstract: Methods, apparatus, devices, subsystems, and systems for holographically displaying live scenes including one or more three-dimensional (3D) objects are provided. In one aspect, a method includes capturing optical holograms of a live scene, digitizing/processing the optical holograms, and holographically reconstructing the live scene based on the digitized/processed holograms. In another aspect, a method includes capturing images/videos of a live scene, computing corresponding holograms, and holographically reconstructing the live scene based on the computed holograms.