Abstract: An imaging system lens assembly includes, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The third lens element has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The fifth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof and having at least one inflection point.

Abstract: Provided is a method for training a scene recognition model. The scene recognition model includes a core feature extraction layer, a global information feature extraction layer, an LCS module of at least one level with an attention mechanism, and a fully-connected decision layer. The method includes: acquiring parameters of the core feature extraction layer and the global information feature extraction layer by training based on a first scene label of a sample image and a standard cross-entropy loss; training a weight parameter of the LCS module of each level, based on a loss value acquired by performing a pixel-by-pixel calculation on a feature map output from the LCS module of each level and the first scene label of the sample image; and acquiring a parameter of the fully-connected decision layer by training based on the first scene label of the sample image and the standard cross-entropy loss.

Abstract: A device for creating digital persona, which includes a data collection module responsible for collecting personality data of a target object, a personality training module utilizing a large language model and the personality data to train and generate a virtual personality model with personality characteristics of the target object, thereby generating a virtual personality consistent with the personality characteristics of the target object, an appearance video generation module and voice generation module respectively utilizing face replacement and voice cloning technologies to extract the pictures and sounds from the personality data to generate a virtual personality model with the appearance and voice characteristics of the target object, a lip synchronization module, utilizing lip synchronization technology to ensure that the mouth shape and voice of the digital persona are synchronized, and an interactive module, providing an interactive interface that allows users to interact with the virtual personali

Abstract: The present invention proposes an AI face replacement device by artificial intelligence face replacement model and post-production adjustments, which includes a face replacement module for performing high-quality face replacement, a light and shadow capture and application module, configured to capture the light and shadow of the face of the replaced object, the face light and shadow are pasted back to the face that has completed the face replacement, a post-production adjustment module configured to provide parameter adjustments and corrections of the face replacement, and an output module configured to output the processed image in a required format.

Abstract: Semiconductor structures and methods are provided. A semiconductor structure according to the present disclosure includes a substrate, a first semiconductor layer over the substrate, a second semiconductor layer over the first semiconductor layer and including a channel region sandwiched between a first source/drain region and a second source/drain region, a first plurality of nanostructures disposed over the channel region, a first leakage block layer over the first source/drain region, a second leakage block layer over the second source/drain region, a dielectric layer on the first leakage block layer, a first source/drain feature on the dielectric layer and in contact with first sidewalls of the first plurality of nanostructures, and a second source/drain feature disposed on the second leakage block layer and in contact with second sidewalls of the first plurality of nanostructures. The first leakage block layer and the second leakage block layer includes an undoped semiconductor material.

Abstract: Provided is a method for detecting hand key points. The method includes: acquiring a hand image to be detected; acquiring heat maps of the hand key points by inputting the hand image into a pre-trained heat map model, wherein the heat maps include two-dimensional coordinates of the hand key points; acquiring hand structured connection information by inputting the heat maps and the hand image into a pre-trained three-dimensional information prediction model; and determining, based on the hand structured connection information and the two-dimensional coordinates in the heat maps, three-dimensional coordinates of the hand key points in a world coordinate system.

Abstract: A method includes: selecting, from among a series of images, a candidate image that was captured at an image-capturing time instant corresponding to a point-cloud-generating time instant at which a point cloud was generated; generating a two-dimensional data set from the point cloud; superimposing the two-dimensional data set on the candidate image to result in a superimposed image; obtaining a derived distance inconsistency between the candidate image and the two-dimensional data set in the superimposed image; feeding the derived distance inconsistency into a conversion model to obtain a derived time difference; calculating a target time instant based on the derived time difference and the image-capturing time instant of the candidate image; and selecting, from among the series of images that have been received from the image capturing device, a target image that was captured at a time instant the closest to the target time instant.

Abstract: This disclosure provides an autonomous vehicle driving system and method. A vehicle may be located by using a vehicle-determined location determined by a vehicle-side locator based on a differential operation and an environmental image captured by an image sensor, that is, a current vehicle location of the vehicle is determined, so that accuracy of vehicle locating is ensured. Further, vehicle driving may be controlled based on the current vehicle location and environmental sensing data, and thus autonomous driving can be implemented without a LiDAR during vehicle operation, thereby reducing costs without affecting the appearance and use of the vehicle.

Abstract: An optical imaging lens assembly includes nine lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, an eighth lens element and a ninth lens element. The first lens element has negative refractive power. The second lens element with negative refractive power has an object-side surface being convex and an image-side surface being concave in a paraxial region thereof. The fourth lens element has an image-side surface being convex in a paraxial region thereof. The fifth lens element has positive refractive power. The sixth lens element has an image-side surface being concave in a paraxial region thereof. The eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof.

Abstract: A two-stage speed controller includes a main body including a first port and a second port in communication with each other, and a primary channel and a secondary channel for fluid to flow therethrough. The secondary channel allows flowing in a single direction to a pressure accumulation chamber. A sliding-axle seat is arranged in the second port. An end of a sliding axle assembly forms, together with the sliding-axle seat, a valve. The pressure accumulation chamber is connected with a primary throttle channel. The sliding axle assembly is formed, in a transverse direction, with a secondary throttle channel. During ingress and discharging of the fluid, all the channels and movement of the valve together allow for control of the pressure of the fluid according to a magnitude of a spring force of a regulation assembly in order to control a moving speed of a cylinder connected to the main body.

Abstract: A two-stage speed controller includes a main body including a first port and a second port in communication with each other, and a primary channel and a secondary channel for fluid to flow therethrough. The secondary channel allows flowing in a single direction to a pressure accumulation chamber. A sliding-axle seat is arranged in the second port. An end of a sliding axle assembly forms, together with the sliding-axle seat, a valve. The pressure accumulation chamber is connected with a primary throttle channel. The sliding axle assembly is formed, in a transverse direction, with a secondary throttle channel. During ingress and discharging of the fluid, all the channels and movement of the valve together allow for control of the pressure of the fluid according to a magnitude of a spring force of a regulation assembly in order to control a moving speed of a cylinder connected to the main body.

Abstract: A method includes forming a first complementary Field-Effect Transistor (CFET) and a second CFET. The first CFET includes a first lower transistor, and a first upper transistor overlapping the first lower transistor. The second CFET includes a second lower transistor, and a second upper transistor overlapping the second lower transistor. The method further includes performing a first etching process to form a first opening, wherein the first etching process includes etching a first gate stack between the first upper transistor and the second upper transistor, and etching a second gate stack between the first lower transistor and the second lower transistor. The first opening is filled with a dielectric material to form a dielectric region. The method further includes performing a second etching process to etch a middle portion of the dielectric region and to form a second opening, and filling the second opening with a conductive material to form a through-via.

Abstract: The present invention is an electronic gear-shifting system with sound effects and display, adapted to be mounted on an electric motorcycle, and including an electronic shift unit, an electronic clutch unit, a throttle position sensor, correspondingly outputting a shift signal, a clutch signal and a throttle position signal according to the operation of the rider, a control unit receiving the aforementioned signals to determine a target gear position of the electric motorcycle and control a power motor of the electric motorcycle. The electric motorcycle converts the real speed of the power motor into a virtual speed through an algorithm and lets a dashboard and a sound effect controller of the electric motorcycle output according to the virtual speed. In addition to simulate the power performance of a general gear-shifting-type motorcycle, the electric vehicle also has visual and auditory variations.

Abstract: Provided is a method for moderating abnormal users. The method includes: acquiring history behavior data of a plurality of to-be-moderated users, wherein the history behavior data includes behavior data of interactions of the plurality of to-be-moderated users; extracting a plurality of predetermined valid features from the history behavior data for each of the plurality of to-be-moderated users, wherein the predetermined valid features are features predetermined in sample data; calculating, based on predetermined probabilities of events associated with the plurality of valid features, a probability that each of the plurality of to-be-moderated users is the abnormal user; establishing a total probability function based on probabilities that the plurality of to-be-moderated users are the abnormal users; determining candidate users by solving, based on predetermined conditions, a maximum value of the total probability function; and determining the abnormal users by moderating the candidate users.

Abstract: The present invention is an electronic gear-shifting device of an electric motorcycle for simulating gear shifting power output, including an electronic shift unit, an electronic clutch unit and a throttle position sensor, and correspondingly outputting a shift signal, a clutch signal and a throttle position signal according to the operation of the rider. A vehicle controller receives the shift signal, the clutch signal and the throttle position signal to determine a target gear position of the electric motorcycle. The vehicle controller looks up a motor torque command according to the target gear position table and outputs the motor torque command to a motor controller, so that the motor controller controls an electric motor of electric motorcycle. Therefore, the electric motorcycle simulates the power performance of a general motorcycle without adding a physical clutch, a gearbox and other shifting mechanisms.

Abstract: A method for constructing cartoonization models is provided. The method includes: generating a predetermined number of sample authentic images using a pre-trained first generative model; constructing a second generative model based on the first generative model, and generating a sample cartoon image corresponding to each of the sample authentic images using the second generative model; acquiring a sample image pair by combining the each of the sample authentic images with the corresponding sample cartoon image; and generating a cartoonization model for converting a target image into a fully cartoonized image by fitting, based on a sample set consisting of multiple sample image pairs, a predetermined initial cartoonization model with a weight corresponding to the second generative model as an initial weight.

Abstract: A semiconductor device includes a first memory cell and a second memory cell. The first memory cell is configured to store a first data bit at a first node when the first memory cell is turned on. The second memory cell is configured to store the first data bit when the first memory cell is turned off. The first memory cell comprises a first switch coupled to the first node, and the first switch is configured to transmit the first data bit to the second memory cell, and configured to be turned off when the first memory cell is turned off.

Abstract: Embodiments of this application disclose methods, apparatuses, and storage media for transmitting and responding to assistance request information. The method includes receiving an assistance request instruction; transmitting an assistance request message to an instant messaging client of at least one request-receiving user based on the assistance request instruction, the assistance request message being displayed on a session page of the instant messaging client, the session page being used by the at least one request-receiving user to conduct a message session; and acquiring assistance request content of an assistance requesting user in real time and displaying the assistance request content to the session page.

Abstract: The first semiconductor layer and the second semiconductor layer are above the first semiconductor layer, in which the first and second semiconductor layers are vertically spaced apart from each other. The first and second source/drain epitaxial features are respectively on first and second sides of the first semiconductor layer. The third and fourth source/drain epitaxial features are respectively on first and second sides of the second semiconductor layer and above the first source/drain epitaxial feature. The first, third, and fourth source/drain epitaxial features have a first conductive type, and the second source/drain epitaxial feature has a second conductive type opposite to the first conductive type.