Abstract: Embodiments provide image display systems and methods for a camera calibration using a two-sided diffractive optical element (DOE). More specifically, embodiments are directed to determining intrinsic parameters of a camera using a single image obtained using a two-sided DOE. The two-sided DOE has a first pattern on a first surface and a second pattern on a second surface. Each of the first and second patterns may be formed by repeating sub-patterns that are lined when tiled on each surface. The patterns on the two-sided DOE are formed such that the brightness of the central intensity peak on the image of the image pattern formed by the DOE is reduced to a predetermined amount.

Abstract: Systems and methods are disclosed for improving on-chip security, while minimizes the latency and cost of security techniques to improve system-level performance and power simultaneously. The framework uses machine learning algorithms, such as an artificial neural network (ANN), for runtime attack detection with higher accuracy. Further, a learning-based attack mitigation method using deep reinforcement learning is disclosed, where the method may be used to isolate the malicious components and to optimize network latency and energy-efficiency.

Abstract: The present invention relates to a method of producing a collagen membrane that has particular mechanical properties.

Abstract: Enhanced eye-tracking techniques for augmented or virtual reality display systems. An example method includes obtaining an image of an eye of a user of a wearable system, the image depicting glints on the eye caused by respective light emitters, wherein the image is a low dynamic range (LDR) image; generating a high dynamic range (HDR) image via computation of a forward pass of a machine learning model using the image; determining location information associated with the glints as depicted in the HDR image, wherein the location information is usable to inform an eye pose of the eye.

Abstract: Methods, systems, and non-transitory computer-readable media are configured to perform operations comprising detecting an object in sensor data captured in an environment; detecting a marker in the sensor data captured in the environment; and determining a first location of the object in the environment based on a relative location of the object to the marker and a second location of the marker.

Abstract: A method for generating a structural form using a machine learning model includes receiving a definition of a boundary of a target structure. The method further includes generating an output force diagram using the boundary and one or more machine-learning models trained on at least one force diagram of an internal network of a natural structure. The method further includes generating a structural form within the boundary using the output force diagram.

Abstract: Various embodiments include a tilt actuator and a spring suspension arrangement for use in a camera having a folded optics arrangement. In some embodiments, the folded optics arrangement may include a light path-folding element that is coupled with a carrier and that is tilted using the tilt actuator. The spring suspension arrangement may suspend the carrier and the light path-folding element from a base structure, and may allow motion of the light path-folding element enabled by the tilt actuator. The spring suspension arrangement may include one or more springs attached to the carrier and to the base structure. In some embodiments, the spring suspension arrangement may further include one or more suspension wires attached to the spring(s) and to a stationary structure of the camera.

Abstract: In some aspects, the techniques described herein relate to a method and apparatus for testing a system including: obtaining a design of a system to be tested by a computing device; generating a plurality of traces based on the design of the system by the computing device; training a model of the system using the generated traces by the computing device; generating a plurality of attack traces for the model of the system by the computing device; attacking the model of the system using the generated plurality of attack traces by the computing device; validating some of the plurality of attack traces by the computing device; for each attack trace that is validated, determining possible system vulnerability based on the validated attack trace by the computing device.

Abstract: An optical lens assembly for a near-eye display device includes a light box and a diffractive optical element (DOE). The light box has a first layer facing a display screen of the near-eye display device and a second layer facing the DOE. The light box is configured to receive a first light from a display screen of the near-eye display device and transmit at least a portion of the first light to the DOE through a folded optical path, where the first layer and the second layer are flat. The DOE aligned with an optical axis of an eye and is configured to receive a second light from the light box and converge the second light to the eye.

Abstract: Aspects of the disclosure provide an optical system. The optical system includes a first lens, a second lens, and a vision correction adapter. The first lens includes a first optically transparent member having a first surface and a second surface. A second lens includes a second optically transparent member having a third surface and a fourth surface. The vision correction adapter is positioned between the first lens and the second lens. The first lens and the second lens are spaced apart by a thickness of the vision correction adapter, and the thickness of the vision correction adapter is selected to correct for one of nearsightedness or farsightedness. A center region of the vision correction adapter includes an opening.

Abstract: A safety case discovery system includes a scenario framework and safety protocols for edge cases. The safety case discovery system receives sensor data generated by at least one sensor during operation of a vehicle and stores the sensor data in a data warehouse. The data warehouse can be queried based on a predefined scenario description to produce a subset of records which are ranked based on a relevancy of the records to the predefined scenario description. The safety case discovery system deduplicates the ranked results to produce edge cases and updates the safety protocol. The safety case discovery system can train a machine learning model vehicle based on the edge cases, to produce a trained machine learning model for optimizing the driving system.

Abstract: A capacitor structure and a power convertor are provided by the present disclosure. The capacitor structure includes a housing and at least one core arranged inside the housing, and two electrodes of the capacitor structure are respectively led out from two ends of the housing. Thus, the pole piece required in a case that electrodes are led from the same end of the housing is omitted, thereby saving material cost. Besides, the housing and the core are respectively hollow structures, and the internal heat of the capacitor structure can be ventilated and dissipated through the corresponding hollow part, thereby improving the heat dissipation performance of the capacitor structure. In addition, by arranging the fin heat dissipation teeth on the housing, the heat dissipation area can be increased to further improve the heat dissipation efficiency.

Abstract: This disclosure provides systems, methods and apparatuses for machine learning. In some implementations, a pre-processing system may identify one or more special features in an input dataset and may generate one or more pruned datasets, respectively, based on the identified special features. The pre-processing system maps each of the pruned datasets to one or more predictions and selectively removes the values associated with one or more special features from the input dataset based on the mapping. In some other implementations, a pre-processing system may map each of the feature sets in an input dataset to multiple predictions in accordance with multiple machine learning algorithms. The pre-processing system evaluates a performance of each of the mappings and selects one of the machine learning algorithms to be used to train the machine learning model based on the performance of each mapping.

Abstract: Examples of the present disclosure disclose a memory and a fabrication method thereof, a memory system, and an electronic device. The memory includes a first semiconductor structure and a second semiconductor structure that are bonded to each other; the first semiconductor structure includes a first dielectric layer and a first conductive pillar located in the first dielectric layer; the second semiconductor structure includes a second dielectric layer and a second conductive pillar located in the second dielectric layer; the second conductive pillar is connected with the first conductive pillar; the memory further includes a heat dissipation channel located in at least one of the first dielectric layer or the second dielectric layer, wherein the heat dissipation channel is disposed as being spaced apart from at least one of the first conductive pillar or the second conductive pillar.

Abstract: Aspects of the disclosure provide an achromatic lens. The achromatic lens can include a first lens and a second lens. The first lens with a negative focal length includes a first optically transparent member having a first surface and a second surface. The second lens is attached to the first lens at the second surface. The second lens having a positive focal length includes a second optically transparent member having a third surface and a fourth surface. A second chromatic aberration of the second lens is reduced by a first chromatic aberration of the first lens. The second surface of the first lens includes a first Fresnel structure.

Abstract: Aspects of the disclosure provide an optical system. The optical system includes a polarization controller that controls polarization states of light beams such that a polarization state of each light beam passing through the polarization controller has one of a first polarization state and a second polarization state. The optical system includes a beam splitter, a reflective polarizer, and one or more lenses between the beam splitter and the reflective polarizer. If a polarization state of a first light beam of the light beams that passes through the polarization controller has the first polarization state, the first light beam passes the one or more lenses only one time. If a polarization state of a second light beam of the light beams that passes through the polarization controller has the second polarization state, the second light beam passes the one or more lenses more than one time.

Abstract: Aspects of the disclosure provide an optical system that includes a first lens including a first optically transparent member having a first surface and a second surface and a reflective polarizer on the first surface. The first surface of the first lens includes a first region and a second region, the first region of the first surface is smooth and at a center of the first surface, and the second region of the first surface includes a Fresnel structure and surrounds the first region. The reflective polarizer includes a first region and a second region, the first region of the reflective polarizer matches a profile of the first region of the first surface of the first lens, and the second region of the reflective polarizer matches a profile of the second region of the first surface of the first lens.

Abstract: A power cabinet, which includes a cabinet body and an electric reactor, a power unit and a switch arranged in the interior of the cabinet body. In the interior of the cabinet body of the power cabinet, the electric reactor is arranged close to a first side in the interior of the cabinet body, and the power unit and the switch are arranged on a second side in the interior of the cabinet body, opposite to the first side. Moreover, these electric reactor, the power unit and the switch are all located in a lower space. In addition, in the power cabinet, the electric reactor and power unit dissipate heat in different chambers from the switch dissipates heat.

Abstract: Aspects of the disclosure provide a first lens. The first lens can include an optically transparent member having a first surface and a second surface. The optically transparent member can be configured to receive light from a display device via the first surface. The received light exits the optically transparent member through the second surface. The first surface and the second surface of the optically transparent member can be aspheric. An in inner surface of the first surface is convex, and an outer surface of the first surface is concave. The inner surface is surrounded by the outer surface of the first surface. A thickness of a central region of the first lens can decrease from a center of the first lens, and a thickness of a peripheral region of the first lens can increase from a boundary of the central region.

Abstract: Provided in the embodiments of the present specification are a memory scanning method and apparatus, wherein the method includes: determining a reserved memory scanning range at a preset time interval; scanning reserved memory to be scanned within the reserved memory scanning range and determining a current cold and hot state of the reserved memory to be scanned; and determining a target record table for the current cold and hot state of the reserved memory to be scanned according to the current cold and hot state of the reserved memory to be scanned and recording the current cold and hot state of the reserved memory to be scanned into the target record table.