Abstract: In a data theft prevention method, a data processing apparatus obtains target data, inputs the target data into a recognition model for recognition processing to obtain a first label, where the first label is a label to which the target data belongs. The recognition processing includes: performing, by the recognition model, feature extraction on the target data to obtain a first feature vector; and obtaining, by the recognition model, the first label through prediction based on the first feature vector; and outputs a target label when determining that a second feature vector exists. The second feature vector is a feature vector whose distance from the first feature vector is less than a first threshold. A second label obtained through prediction by using the recognition model is different from the first label and the target label is a label obtained by performing perturbation processing on the first label.

Abstract: A rotation mechanism of a wrist exerciser is provided. The rotation mechanism includes a sleeve ring, a spinning mass, and a driving assembly. The sleeve ring is rotatable along an annular groove. The sleeve ring includes an annular body and a mount component. The annular body has a first mount portion and a first insertion hole respectively located at two opposite sides of the annular body. The mount component has a second mount portion and a second insertion hole. The second mount portion of the mount component is engaged with the first mount portion. Two shaft portions of the spinning mass are respectively and rotatably located in the first insertion hole and the second insertion hole, allowing the spinning mass to be rotatable. The driving assembly includes a stator fixed to the mount component and a rotor mounted on the spinning mass.

Abstract: A composition method and system of a photographing device, and a storage medium are provided. The composition method may include obtaining a composition factor of a target in a image currently photographed by a photographing device, matching the composition factor of the target with a model composition factor in a composition strategy, and acquiring current posture of the photographing device and adjusting or maintaining the current posture of the photographing device based upon result of the matching.

Abstract: A computing device and a method for reusing data are provided. The computing device includes a general register and an arithmetic unit coupled to the general register. The arithmetic unit includes a data reuse unit, which is coupled to multiple dot product data units. The data reuse unit is configured to read from the general register and temporarily store a data set used for multiple convolution operations, and determine multiple data subsets from the data set to be respectively inputted into the multiple dot product data units. Two data subsets inputted into two adjacent dot product data unit include a portion of the same data. Each of the multiple dot product data units is configured to perform a dot product operation on the inputted data subset, so as to generate a dot product operation result.

Abstract: A method for determining one or more boundary points of a bottom surface of a vehicle includes: obtaining a road condition image collected by a roadside camera, and determining a target vehicle in the road condition image; determining a target vanishing point in the road condition image in accordance with an image feature in the road condition image or an image feature of the target vehicle; obtaining visible edge lines of the target vehicle in the road condition image and two wheels at a same side of the target vehicle, and determining a ground baseline in accordance with ground contact points of the two wheels; and determining one or more boundary points of a bottom surface of the target vehicle in accordance with the target vanishing point, the visible edge lines and the ground baseline.

Abstract: A machine vision-based tree recognition method and device are provided. The machine vision-based tree recognition method may include obtaining a top view image containing a tree and processing the top view image to obtain pixel position information of a tree center of the tree and tree radius information corresponding to the tree center in the top view image.

Abstract: Embodiments of the disclosure provide an emitter array for an optical sensing system. The emitter array may include a waveguide including a plurality of waveguide branches. The emitter array may also include a plurality of grating switches positioned along each of the plurality of waveguide branches and configured to selectively turn on or off the corresponding waveguide branch for transmitting light. In certain aspects, a grating switch may include an upper grating structure configured to couple to a waveguide branch when the grating switch is activated to allow the light to emit from the waveguide branch.

Abstract: The present disclosure provides a packaging apparatus. The packaging apparatus may include a main body. The main body may include a base plate, a first side plate, and a second side plate. The first side plate and the second side plate may be distributed around the base plate. The packaging apparatus may include an elastic sheet disposed above the base plate. The elastic sheet may include a first fixing part and a second fixing part. The first fixing part and the second fixing part may be connected with the first side plate and the second side plate, respectively. A space may be configured between the base plate and the elastic sheet. When the packaging apparatus is used to package a subject, the first side plate and the second side plate may be folded away from a side of the base plate where the subject is located.

Abstract: A bandwidth management and configuration method for a cloud service is provided, the method including configuring a shared bandwidth package for a tenant of the cloud service, the at least two IP addresses sharing the shared bandwidth package, and the at least two IP addresses being configured by the tenant, and; configuring at least one sub-bandwidth package of the shared bandwidth package, the at least one sub-bandwidth package being bound to at least one IP address; performing rate limiting management on packet traffic based on the at least one sub-bandwidth package and the shared bandwidth package. On a premise that a bandwidth policy of the shared bandwidth package is met, different bandwidth policies may be independently set for different sub-bandwidth packages. In this way, rate limiting on selected traffic can be performed more finely and flexibly.

Abstract: Embodiments of a three-dimensional capacitor for a memory device and fabrication methods are disclosed. The method includes forming, on a first side of a first substrate, a peripheral circuitry having a plurality of peripheral devices, a first interconnect layer, a deep well and a first capacitor electrode. The method also includes forming, on a second substrate, a memory array having a plurality of memory cells and a second interconnect layer, and bonding the first interconnect layer of the peripheral circuitry with the second interconnect layer of the memory array. The method further includes forming, on a second side of the first substrate, one or more trenches inside the deep well, disposing a capacitor dielectric layer on sidewalls of the one or more trenches, and forming capacitor contacts on sidewalls of the capacitor dielectric layer inside the one or more trenches.

Abstract: This obstacle determination system determines the presence/absence of an obstacle around a work vehicle that has a work machine mounted thereto. The obstacle determination system is provided with an obstacle sensor, a preparation unit, and a determination unit. The obstacle sensor detects an obstacle, and the detection range thereof covers a work machine. The preparation unit prepares operation information indicating the movement of said work machine which is detected by the obstacle sensor while keeping the work machine in operation. On the basis of the operation information and the detection result of the obstacle sensor, the determination unit determines the presence/absence of an obstacle by recognizing an object other than the work machine.

Abstract: An apparatus and a method for preparing glow discharge sputtering samples for materials microscopic characterization are provided. The apparatus includes a glow discharge sputtering unit, a glow discharge power supply, a gas circuit automatic control unit, a spectrometer, and a computer. The structure of the glow discharge sputtering unit is optimized to be more suitable for sample preparation by simulation. By adding a magnetic field to the glow discharge plasma, uniform sample sputtering is realized within a large size range of the sample surface. The spectrometer monitors multi-element signal in a depth direction of the sample sputtering, so that precise preparation of different layer microstructures is realized. In conjunction with the acquisition of the sample position marks and the precise spatial coordinates (x, y, z) information, the correspondence between the surface space coordinates and the microstructure of the sample is conveniently realized.

Abstract: A method, a device, and an apparatus for controlling laser emission are provided. A secondary emergent laser is emitted at a first time of a detection period. A primary emergent laser emitted at a second time of the detection period is adjusted according to a first detection echo corresponding to the secondary emergent laser.

Abstract: A sorter comprising: a rack; a track assembly comprising two ring-shaped tracks both installed on the rack, the tracks being respectively arranged in two mutually parallel vertical planes and being aligned with each other; a drive assembly comprising at least one sprocket sets that comprise a driving sprocket and a plurality of driven sprockets installed on the rack; at least one chain hooping on the driving sprocket and the driven sprockets and having the same shape as the tracks; an electric machine configured to drive the driving sprocket to rotate; a sorting cart comprising a carriage that is arranged between and slidably connected to the two ring-shaped tracks and is further hinged with the chain; a conveying assembly disposed above the carriage and carry and convey items, wherein a conveying direction of the conveying assembly is different from a moving direction of the sorting cart.

Abstract: The present disclosure provides a packaging apparatus. The packaging structure may include a main body including one or more base plates and one or more elastic sheets. Each of the base plates may have two opposite first side edges, two opposite second side edges, and an opening. Each of the one or more elastic sheets may correspond to one of the one or more base plates. The one or more elastic sheets may be physically connected with the main body, and each of the one or more elastic sheets may cover at least a part of the opening. The main body may further include a first side plate disposed beside at least one of the two opposite first side edges and a second side plate disposed beside each of the two opposite second side edges.

Abstract: Embodiments of the disclosure provide a transmitter, an optical sensing system, and an optical sensing method. An exemplary optical sensing system includes an optical source configured to emit optical signals. The optical sensing system further includes a scanner configured to steer the optical signals towards an environment surrounding the optical sensing system at a plurality of scanning angles. A surface curvature of the scanner is adaptively adjusted to change a divergence of the optical signals at the respective scanning angles. The optical sensing system additionally includes a receiver configured to receive the optical signals returning from the environment.

Abstract: A method for training a data processing model includes: acquiring sample data; acquiring an initial data processing model, the initial data processing model including a plurality of forward nodes for outputting a plurality of intermediate results corresponding to the sample data; determining a plurality of time-dependent features corresponding to the plurality of forward nodes; acquiring a data processing model to be trained by processing the initial data processing model based on the plurality of time-dependent features; and training the data processing model to be trained using the sample data and the plurality of intermediate results.

Abstract: A headlamp unit based on a PBS includes a lens and a beam splitter. Viewed from a reverse light path, parallel light is refracted twice by an incident surface and an emergent surface of the lens and then converged in at least two focuses through the beam splitter. Each focus corresponds to a light path system, and the light path systems may be turned on simultaneously or separately to obtain a corresponding headlamp light pattern. Through beam combination of the PBS, two optical systems may achieve different illumination light shapes through on-off combination of light sources, and the two optical systems do not interfere with each other. The PBS obtains at least two accurate focus positions for the focuses of the lens, and an ideal light pattern may be accurately obtained. An upper beam light pattern may partially cover a lower beam light pattern.

Abstract: The present disclosure proposes a vehicle lamp assembly, which includes a plurality of light sources, a primary optical element, and a secondary optical element, the primary optical element includes a primary optical element body and a plurality of light incident parts, the plurality of light sources is in one-to-one correspondence with the plurality of light incident parts, the primary optical element body includes a main reflector and an edge reflector arranged on a left edge and/or right edge of the main reflector, the plurality of light incident parts includes an edge light incident part located on a left side and/or right side, at least a part of light emitted from the edge light incident part is reflected to the secondary optical element by the edge reflector, and a remaining part of the light is reflected to the secondary optical element by the main reflector.

Abstract: Embodiments of the disclosure provide methods and systems for labeling an object in point clouds. The system may include a storage medium configured to store a sequence of plural sets of 3D point cloud data acquired by one or more sensors associated with a vehicle. The system may further include one or more processors configured to receive two sets of 3D point cloud data that each includes a label of the object. The two sets of data are not adjacent to each other in the sequence. The processors may be further configured to determine, based at least partially upon the difference between the labels of the object in the two sets of 3D point cloud data, an estimated label of the object in one or more sets of 3D point cloud data in the sequence that are acquired between the two sets of the 3D point cloud data.