Abstract: Provided is a method of simultaneous localization and mapping (SLAM), the method including obtaining a structure of a current image frame, obtaining a structure re-identification constraint based on the structure of the current image frame, and obtaining a SLAM result based on the structure re-identification constraint. By introducing the structure re-identification constraint in a bundle adjustment process to obtain the SLAM result, error accumulation may be more easily controlled, and accuracy and robustness in obtaining the SLAM result may be improved.

Abstract: A camera module having OIS function and its preparation method are provided. The camera module includes a housing and an optical assembly in the housing, and further includes a circuit board in the housing. The circuit board includes a first board and a second board on the first board. The first board is flexible. The first board includes a first portion, a second portion, and a third portion successively connected in an extending direction of the first board. The second portion defines a slot. The second board is on the third portion. The optical assembly is on the second board. The first portion includes a fixed end connecting the second portion and an opposite free end. The housing defines a through hole. The first portion extends through the slot to form a bent portion and extends out of the through hole, such that the free end is outside the housing.

Abstract: A communication network switching system for an elevator system, a communication network switching method for an elevator system, and an elevator system are disclosed. The communication network switching system includes at least two communication networks, and the at least two communication networks are respectively arranged in different areas of the elevator system and a building where the elevator system is located, and are configured to provide a communication link for a movable device in the areas, in which the communication network switching system is configured to enable the communication link of the movable device to be switched from one of the at least two communication networks to the other of at least two communication networks according to current movement characteristics of the movable device.

Abstract: An embodiment of the application provides a method for forming a semiconductor structure. The semiconductor structure includes a first region and a second region. The method includes the following steps: providing a base, an insulating layer, and a mask layer that are stacked in sequence, where the first region has at least one trench penetrating the mask layer and the insulating layer, and the mask layer has an upper surface in the second region higher than that in the first region; forming a first protection layer, where an upper surface and a sidewall of the mask layer in the first region are covered with the first protection layer; after the first protection layer is formed, removing the mask layer in the second region; subsequent to removal of the mask layer in the second region, removing the first protection layer; and removing the mask layer in the first region.

Abstract: Embodiments of the present disclosure relate to a method, an electronic device, and a computer program product for video processing. The method for video processing includes receiving a first video with a first resolution from a first terminal device, the first video including an image of a first user. The method further includes converting the first video into a second video with a second resolution based on a computing model associated with the first user, the second resolution being higher than the first resolution. The method further includes sending the second video to a second terminal device. In this manner, only low-resolution videos need to be acquired and uploaded, and high-resolution videos can be obtained through reconstruction by using a computing model customized for video services, thereby ensuring that less bandwidth is occupied and improving the quality of the reconstructed videos.

Abstract: A touch-control panel and a touch-control displaying device, which relates to the technical field of touch control. In the present application, by providing the first carrier element, the first electrically conductive layer and the first shadow eliminating layer on the substrate, by blocking the first electrically conductive layer by using the first shadow eliminating layer, the reflectivity of the first electrically conductive layer is reduced, which reduces the pattern of the first electrically conductive layer being observed under intensive-light reflection.

Abstract: The invention provides an AC/DC conversion device for intelligent green-power operation and maintenance in power transmission and transformation projects, including a cabinet, an assembling panel, an inverter, a driving mechanism and a controller. A door is mounted at the front portion of the cabinet in a fixed and sealed manner, and the assembling panel is fixedly mounted on the back wall of the cabinet inside the cabinet. The assembling panel, the inverter, the driving mechanism and the controller are all provided inside the cabinet, which provides desirable dust-proof effects, preventing the case where the inverter, the driving mechanism and the controller are interfered by the dust, so that this device is suitable for outdoor usage. The driving mechanism and the controller work in coordination, so that the inverter can be switched off in time when it burns out and smokes, thereby substantially reducing the risk of fire hazards.

Abstract: A method for evaluating images of a printed pattern. The method includes obtaining a first averaged image of the printed pattern, where the first averaged image is generated by averaging raw images of the printed pattern. The method also includes identifying one or more features of the first averaged image. The method further includes evaluating the first averaged image, using an image quality classification model and based at least on the one or more features. The evaluating includes determining, by the image quality classification model, whether the first averaged image satisfies a metric.

Abstract: A backlight module and a display apparatus are disclosed. The backlight module includes a circuit board, a driving chip on the circuit board, and a plurality of light-emitting areas corresponding to the driving chip. The driving chip includes a first pin and a third pin located on a first side of the driving chip, and a second pin and a fourth pin located on a second side of the driving chip, the first pin and the second pin are electrically connected inside the driving chip, and the third pin and the fourth pin are electrically connected inside the driving chip; the first side and the second side are opposite sides. The driving chip further includes a plurality of control terminals on a third side of the driving chip, the plurality of control terminals are correspondingly connected with the plurality of light-emitting areas.

Abstract: This application discloses a TSN time synchronization method and apparatus. One example method includes: a first apparatus receives a first TSN time synchronization message from a second apparatus; the first apparatus determines that the first TSN time synchronization message does not carry a first time, where the first time is a system time of a wireless communication system when the second apparatus receives the first TSN time synchronization message; and the first apparatus locally obtains a bridge residence time, write the bridge residence time into the first TSN time synchronization message, and send the first TSN time synchronization message.

Abstract: Tetradentate platinum complexes of Formulas I and II suitable for phosphorescent or delayed fluorescent and phosphorescent emitters in display and lighting applications.

Abstract: This application provides a method for configuring equipment for a simulated chess piece character performed by a computer device. The method includes: displaying a battle chessboard, the battle chessboard comprising at least one simulated chess piece character controlled by a robot account; in response to a lineup configuration of the simulated chess piece character in this game, displaying recommended equipment corresponding to the simulated chess piece character, the lineup configuration comprising at least one of the simulated chess piece character displayed on the battle chessboard and a simulated chess piece character that the robot account has not obtained yet; and in response to that the simulated chess piece character meets an equipping condition, assigning the recommended equipment to the robot account and displaying the simulated chess piece character equipped with the recommended equipment.

Abstract: The present disclosure provides a quick-release assembly, a connection structure, a photography accessory, and a quick-release kit. The quick-release assembly includes: a mounting base, a top end thereof being defined with a fixing slot, a bottom end thereof being defined with an accommodation slot, a limiting groove being defined in a bottom wall, an opening at one end of the limiting groove being communicated with the accommodation slot, and an opening at the other end of the limiting groove being communicated with the fixing slot; a sliding member slidably accommodated in the accommodation slot; and a resisting member received in the limiting groove. After assembly, one end of the resisting member abuts against the sliding member, and the other end of the resisting member extends out of a bottom wall surface of the fixing slot.

Abstract: The present invention provides a nucleic acid sequence, which comprises one or more selected from the sequences consisting of SEQ ID NOs: 1-7 and the complementary sequences thereof, the nucleic acid sequence is derived from plants, seeds or cells comprising the transgenic maize event LP026-2, and the representative sample of the seeds comprising the event having been deposited under deposit number CCTCC NO: P202207.

Abstract: Provided are a flexible display structure. The flexible display structure includes a reinforcing strip, and a flexible display panel and a transparent cover plate that are laminated, wherein the transparent cover plate is provided with a fifth surface and a sixth surface opposite to each other, and a third side surface connecting the fifth surface to the sixth surface; and the flexible display panel is adhered to the transparent cover plate via an optical adhesive layer, and the reinforcing strip is disposed at least on the third side surface.

Abstract: A blockchain network management method includes receiving a user registration request, where the user registration request includes a user type of a user, and the user type is based on a deployment manner of a blockchain network managed by the user; registering a corresponding organization for the user based on the user registration request, where the organization is associated with resource space corresponding to the user type; and invoking a processing interface of the resource space to execute corresponding service logic. In the method, an organization with a consistent structure is registered for an on-cloud user or an off-cloud user, and the organization is bound to resource space of a corresponding user type, to perform service processing through a processing interface of the corresponding resource space.

Abstract: In some aspects, a mobile device may receive, from a transmitting device, the signal by a plurality of antennas. The mobile device may measure one or more phase differences among the signal received at the plurality of antennas. The mobile device may determine a first set of possible values for the angle of arrival that are consistent with the one or more phase differences. The mobile device may measure one or more signal values using one or more sensors of the mobile device. The mobile device may for each of the first set of possible values, determining a confidence score based on the one or more signal values. The mobile device may select, based on the confidence scores, one of the first set of possible values as the angle of arrival.