Abstract: In one embodiment, a system includes at least one projector configured to project a plurality of projected patterns, where a projected lighting characteristic of each of the projected patterns varies over a time period in accordance with an associated predetermined temporal lighting-characteristic pattern, a camera configured to capture images of detected patterns, and one or more processors configured to: determine, for each detected pattern, a detected temporal lighting-characteristic pattern based on variations in a detected lighting characteristic of the detected pattern, identify a detected pattern that corresponds to one of the projected patterns by comparing at least one of the detected temporal lighting-characteristic patterns to at least one of the temporal lighting-characteristic patterns, and compute a depth associated with the detected patterns based on the one or more of the projected patterns, the detected pattern, and a relative position between the camera and the projector.

Abstract: In one embodiment, a computing system may be configured to generate accurate and realistic computer-generated clothing for a given body pose. For example, the system may access a data representation of a body pose and generate, based on the data representation, a 3D clothing model for the body pose using a statistical model. The system may generate a first normal map, such as a low-resolution normal map, based on the 3D clothing model. The system may generate a second normal map, such as a high-resolution normal map, by processing the first normal map using a machine-learning model that is trained to generate normal maps with higher levels of detail from normal maps with relatively lower levels of detail. The system may then render clothing for the body pose based on the 3D clothing model and the second normal map.

Abstract: In one embodiment, a method includes establishing a video call between multiple client systems and determining user identifiers of users associated with the video call. Whether to provide content recommendations during the video call may then be determined based on a current context of that video call, and one or more content items to recommend may be selected based on the determined user identifiers. Finally, in response to determining to provide content recommendations during the video call, a first content recommendation with the selected content items may be sent to one or more of the client systems while maintaining the video call between those client systems.

Abstract: A curable liquid is provided to a mold having a rigid surface disposed opposite a deformable surface. The curable liquid contacts the rigid surface and the deformable surface. The deformable surface is shaped according to a surface profile by driving actuators configured to move the deformable surface. The curable liquid is cured while the deformable surface is shaped according to the surface profile.

Abstract: The disclosed computer-implemented method may include (1) monitoring, at a computing device via one or more sensors, positions of one or more fingers of a user relative to an opposing thumb of the user, (2) detecting, while monitoring the positions, a pinch gesture of the one or more fingers, (3) determining one or more user inputs to which at least the pinch gesture has been mapped, and (4) performing, at the computing device, a user-input operation based on the one or more user inputs. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: In one embodiment, a system may generate a hologram by processing a first image using a machine-learning model. The system may generate a second image based on at least a portion of the hologram using a processing model that is configured to simulate interactions between a light source and the hologram. The system may compare the second image to the first image to calculate a loss based on a loss function. The system may update the machine-learning model based on the loss between the first image and the second image. The updated machine-learning model is configured to process one or more input images to generate one or more corresponding holograms.

Abstract: The disclosed wrist-tracking apparatus includes (1) a wristband dimensioned to be donned on a wrist of a user of an artificial reality system and (2) a set of Time of Flight (ToF) sensors coupled to the wristband, wherein each of the ToF sensors comprises (A) an emitter that emits a modulated pulse of energy, (B) a receiver that facilitates detecting a reflection of the modulated pulse of energy, and (C) a processing circuit communicatively coupled to the emitter and the receiver, wherein the processing circuit calculates a time of flight for the modulated pulse of energy based at least in part on the modulated pulse of energy and the reflection. Various other apparatuses, systems, and methods are also disclosed.

Abstract: The disclosed head-mounted display systems may include an optical element supported by a head-mounted display frame, a projector mounted to the head-mounted display frame, and at least one voice coil actuator mounted on the head-mounted display frame. The projector may be configured to project, via the optical element, an image toward an eye of a user of the head-mounted display system. The at least one voice coil actuator may be coupled to at least one of the projector or the optical element. When actuated, the at least one voice coil actuator may translate at least one of the projector or the optical element in at least one direction relative to the head-mounted display frame. Various other methods, systems, and methods of manufacture are also disclosed.

Abstract: The disclosed human computer interface (HCI) system may include (1) at least one processor, (2) a plurality of sensors that detect one or more neuromuscular signals from a forearm or wrist of a user, and (3) memory that stores (A) one or more trained inferential models that determine an amount of force associated with the one or more neuromuscular signals and (B) computer-executable instructions that, when executed by the at least one processor, cause the at least one processor to (I) identify the amount of force determined by the one or more trained inferential models, (II) determine that the amount of force satisfies a threshold force value, and in accordance with the determination that the amount of force satisfies the threshold force value, (III) generate a first input command for the HCI system. Various other devices, systems, and methods are also disclosed.

Abstract: In one embodiment, a method for rendering objects within an operating system includes receiving multiple data structures from applications executing on the operating system. Each data structure includes a declarative definition of one or more objects within a volumetric space to be displayed to a user of the operating system. The operating system can generate a render graph that includes the declarative definition of each data structure and can cause images of the objects associated with each data structure to be rendered based on the render graph and a pose of the user relative to the volumetric space.

Abstract: An eye is illuminated with light propagating substantially normal to a pupil plane of the eye. Illuminating the eye includes illuminating an ellipsoidal combiner that has a foci at a center of rotation of the eye. The light propagates through the pupil to become incident on the retina.

Abstract: A controller is formed as an array of transmitting antennas and receiving antennas that are placed on the skin of a user so that the underlying movement of the user's skin can be measured by the interaction of the transmitting antennas and the receiving antennas. In an embodiment, the transmitting antennas and receiving antennas are located in an area proximate to the wrist. The movement of the transmitting antennas and subsequent measurement of signals received by receiving antennas are used in order to determine position and pose of the hand and its digits.

Abstract: Head-mounted display systems may include a display subsystem, an optics subsystem, a prescription accommodation subsystem, and a varifocal adjustment subsystem. The prescription accommodation subsystem may include a prescription accommodation actuator that is configured to adjust a focus of a displayed image to account for the user's visual refractive error. The varifocal adjustment subsystem may include a varifocal adjustment actuator configured to further adjust the focus of the image to change a perceived view of the image on the display subsystem. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: An optical device includes a first polarization selective reflector; a second polarization selective reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs first light having a first nonplanar polarization toward the second polarization selective reflector and the second polarization selective reflector directs at least a portion of the first light toward the first polarization selective reflector as second light. The optical device includes a first reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs at least a portion of the second light having a second nonplanar polarization toward the first reflector as third light.

Abstract: A fluidic logic-gate device may include inlet ports, input ports, an output port, fluid channels each configured to route fluid from one of the inlet ports to the output port, and pistons that each include (1) a restricting gate transmission element configured to block, when the piston is in a first blocking position and unblock, when the piston is in a second blocking position, one of fluid channels, (2) a first controlling gate transmission element configured to interface with a first control pressure that, when applied to the first controlling gate transmission element, forces the piston towards the first blocking position, and (3) a second controlling gate transmission element configured to interface with a second control pressure that, when applied to the second controlling gate transmission element, forces the piston towards the second blocking position. Various other related devices and systems are also disclosed.

Abstract: A compact light projection system is described for use in artificial reality systems, and which outputs patterned interferometric illumination that may be dynamically adjustable. The light projection systems are Integrated Circuits (IC)s, which are compact and easily added to other electronic devices in an artificial reality device. The IC illumination sources described herein provide flexibility by incorporating dynamically adjustable components as well as static components, such as phase delay devices, coupling controllers, switch-able light sources, and output gratings, which may each be adjusted to control the resulting pattern of interferometric illumination.

Abstract: A display device includes a display panel having a first emission region and a second emission region that is distinct from and mutually exclusive to the first emission region and surrounds the first emission region. The display device includes a first plurality of light emitters arranged in the first emission region, a plurality of activation lines for the first emission region, a second plurality of light emitters arranged in the second emission region, and a plurality of activation lines for the second emission region. A single activation line of the plurality of activation lines for the first emission region is electrically coupled with a first number of light emitters in the first emission region and a single activation line of the plurality of activation lines for the second emission region is electrically coupled with a second number, distinct from the first number, of light emitters in the second emission region.

Abstract: A microelectromechanical system (MEMS) coil assembly is presented herein. In some embodiments, the MEMS coil assembly includes a foldable substrate and a plurality of coil segments. Each coil segment includes a portion of the substrate, two conductors arranged on the portion of the substrate. The substrate can be folded to stack the coil segments on top of each other and to electrically connect first and second conductors of adjacent coil segments. In some other embodiments, the MEMS coil assembly includes a plurality of coil layers stacked onto each other. Each coil layer includes a substrate and a conductor to form a coil. The conductors of adjacent coil layers are connected through a via. The MEMS coil assembly can be arranged between a pair of magnets. An input signal can be applied to the MEMS coil assembly to cause the MEMS coil assembly to move orthogonally relative to the magnets.

Abstract: This disclosure describes efficient communication of surface texture data between system on a chip (SOC) integrated circuits. An example system includes a first integrated circuit and a second integrated circuit communicatively coupled to the first integrated circuit by a video communication interface. The first integrated generates a superframe in a video frame of the video communication interface for transmission to the second integrated circuit. The superframe includes multiple subframe payloads that carry surface texture data to be updated in the frame and corresponding subframe headers that include parameters of the subframe payloads. The second integrated circuit includes a direct access memory (DMA) controller. The DMA upon receipt of the superframe, writes the surface texture data within each of the subframe payloads directly to an allocated location in memory based on the parameters included in the corresponding one of the subframe headers.

Abstract: An apparatus for efficiently driving visual displays via light-emitting devices may include (1) at least one light-emitting device, (2) a buck driver circuit electrically coupled to the light-emitting device, wherein the buck driver circuit includes an inductor, and (3) a boost circuit electrically coupled between the buck driver circuit and a power source, wherein the boost circuit includes an additional inductor. Various other apparatuses, systems, and methods are also disclosed.