Abstract: Aspects of the disclosure provide methods and apparatuses for processing an augmented reality (AR) scenario. In some examples, an apparatus includes processing circuitry. The processing circuitry obtains first feature point information in a first video frame according to a target marker image. The processing circuitry tracks, according to an optical flow tracking algorithm, a first feature point corresponding to the first feature point information. The processing circuitry determines second feature point information in a second video frame according to the tracked first feature point. The processing circuitry constructs a homography matrix between the second video frame and the target marker image according to the second feature point information and a first source feature point of the target marker image. The processing circuitry performs a first AR processing on the second video frame according to the homography matrix.

Abstract: A method for displaying an application program, a terminal device, and a storage medium which are applied to intelligent terminals. The method includes: determining whether an application program to be currently started is displayed by means of a Freeform window; if the application program to be currently started is displayed by means of a Freeform window, acquiring a display interface specified by the application program and corresponding to a work task; and after the application program is started, displaying the acquired specified display interface corresponding to the work task in a Freeform window as a display interface of the application program.

Abstract: A gamepad control method, a storage medium, and a gamepad. The method comprises: when a hand approaches a gamepad, a sensor (11) acquires a first sensing signal; and generate a low-level signal according to the first sensing signal to control the gamepad to be started according to the low-level signal.

Abstract: A sound transducer includes a substrate including a first surface, a second surface, and a cavity, a support structure disposed on the first surface and including an inner peripheral edge and a third surface, a fixing structure disposed on the third surface, a moving structure including an exterior peripheral edge and a fourth surface, a first set of comb fingers fixed to the inner peripheral edge, extending toward the moving structure, and being electrically isolated from the fixing structure and the moving structure, a second set of comb fingers fixed to the exterior peripheral edge, extending toward the support structure, and interdigitated with the first set of comb fingers, and an elastic connecting structure including a first connecting part connected to the fourth surface, a second connecting part connected to the fixing structure, and an elastic body; the moving structure is disposed above the cavity.

Abstract: Disclosed is a novel air purification composition with antiviral and bactericidal functions, the composition at least comprising the following components in percentage by weight: 0.3%-1% of a black poplar essential oil, 0.1%-1% of a tea tree essential oil, 0.1%-0.5% of a Cupressus funebris essential oil, 0.1%-1% of an Artemisia apiacea essential oil, 0.1%-10% of a Sophora flavescens extract, 0.1%-5% of a ginger extract, 5%-30% of a Cupressus funebris hydrolate, 0.5%-1% of a hyperbranched amino polymer, 0.5%-5% of a surfactant, and the balance being water.

Abstract: Disclosed are a method for random access, a terminal, and a network device. The method comprises: a first terminal transmits a random access request to a network device; the first terminal receives a random access response transmitted by the network device; and the first terminal transmits uplink synchronization information and/or an uplink resource to the second terminal, the uplink synchronization information being used by the first terminal and/or the second terminal for uplink synchronization with the network device, and the uplink resource being used by the first terminal and/or the second terminal for communication with the network device.

Abstract: An electrically scanned array antenna device applied to a millimeter wave imaging system is provided. The electrically scanned array antenna device comprises an adjustable light source for outputting an optical signal with an adjustable wavelength; an electro-optical modulation module; an optocouple; a time delay module for performing optical delay of different duration on each modulated signal, and correspondingly changing the duration of the optical delay according to the wavelength of the optical signal to obtain modulated signals of different phases; an optical detector; and an array antenna. The millimeter wave is loaded on the optical signal with an adjustable wavelength to obtain a modulated signal; the modulated signal is divided into multiple signals; time delay of different duration is performed on each signal; and millimeter wave signals of different phases are obtained after demodulation and are simultaneously transmitted to scan an object to be measured.

Abstract: A camera device includes a plurality of lenses and an annular body having a fixed hole. The plurality of lenses and the annular body are arranged between an object side and an image side along an optical axis. The annular body includes an annular main body, an outer circumferential portion, and an inner circumferential portion, wherein the annular main body connects to the outer circumferential portion and the inner circumferential portion, and the inner circumferential portion is non-circular and surrounds the optical axis to form the fixed hole. The camera device satisfies: EFL/?{square root over (4A/?)}=(EFL/Dx+EFL/Dy)×K1; K1?0.49, where EFL is an effective focal length of the camera device, A is an area of the fixed hole, K1 is a coefficient, Dx is a maximum dimension of the fixed hole through which the optical axis passes, and Dy is a minimum dimension of the fixed hole through which the optical axis passes.

Abstract: A method for enabling a wireless communication device to operate in a radio access network as a network relay device to a remote device, using a short range communication channel there between, wherein the communication device receives a control indication signal from the remote device as an indication of future data between the communication device and the remote device via the short range communication channel which forms part of a sidelink communication between the relay device and the remote device; wherein the relay device decodes the control indication signal from the remote device to extract a time allocation for future data.

Abstract: The present disclosure provides a method for generating a verification template. The verification template includes an infrared template and a depth template. The method includes: obtaining an infrared image of a target object and storing the infrared image into a trusted execution environment as the infrared template; controlling a laser projector to project laser light to the target object; obtaining a laser pattern modulated by the target object; and processing the laser pattern to obtain a depth image and storing the depth image into the trusted execution environment as the depth template.

Abstract: A pressing member includes a base, a first pressing portion, and a second pressing portion. The first pressing portion and the second pressing portion are arranged on a same surface of the base. The base is provided with a first hole. The first pressing portion includes a first contact surface facing away from the base. The first contact surface defines a second hole extending toward the base and communicating with the first hole to cooperatively define a channel. The second pressing portion includes a second contact surface facing away from the base. The second contact surface and the first contact surface are arranged on a same plane.

Abstract: A device of measurement of transverse distribution of a wheel path. The device includes a measurement device, a first database, an analysis device, and a second database. The measurement device is configured to measure a shape and size of one side of a horizontal section of each of a plurality of vehicles, and to measure a distance between the one side of the horizontal section of each of the plurality of vehicles and a road shoulder. The first database is configured to store data of the shape and size of one side of the horizontal section of each of the plurality of vehicles, and of the distance between the one side of the horizontal section of each of the plurality of vehicles and the road shoulder, and raw data of a shape and size of one side of a horizontal section of a plurality of wheels.