Abstract: An autonomous environmental perception, path planning and dynamic landing method includes: obtaining three-dimensional environment information in real time; determining a global starting point and a global end point, and generating an initial path; optimizing the initial path based on a local path optimization algorithm to obtain a first optimized path; when a perception threshold of the current position of the unmanned aerial vehicle is greater than a preset threshold, optimizing the initial path based on a frontier-perceived path optimization method to obtain a second optimized path and a local end point; when the unmanned aerial vehicle advances to the local end point, switching to optimizing the initial path in real time based on the local path optimization algorithm; and when the unmanned aerial vehicle arrives at the global end point, carrying out dynamic landing based on a deep reinforcement learning algorithm.

Abstract: The present disclosure provides a multi-excitation-source axial-flux permanent-magnet motor with partitioned, hierarchical, and variable poles, and a variable-condition driving control system. The motor mainly includes a main magnetic pole and an auxiliary magnetic pole. The main magnetic pole is responsible for providing a main air gap flux and is connected in series with a dual-stator magnetic circuit. The auxiliary magnetic pole is responsible for adjusting an air gap field and is connected in parallel with the dual-stator magnetic circuit. Magnetic fluxes of the main magnetic pole and the auxiliary magnetic pole together constitute the air gap field. The present disclosure can control a flux path of the auxiliary magnetic pole by controlling the magnitude of a current applied to a field winding, thereby adjusting an air gap flux, expanding a speed range of the motor, and achieving variable-condition operation of the motor.

Abstract: An imaging device is provided. The imaging device includes: one or more imaging sources; and a plurality of detectors combined by joining, the plurality of detectors being configured to receive one or more imaging beams emitted by the one or more imaging sources.

Abstract: Disclosed are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a substrate and a plurality of sub-pixels, at least one sub-pixel includes a pixel drive circuit and a light emitting device connected to the pixel drive circuit, the pixel drive circuit includes a plurality of transistors, wherein at least one transistor includes an active layer and two gate electrodes. The substrate is provided with a semiconductor layer and a plurality of conductive layers disposed on one side of the semiconductor layer away from the substrate, at least one conductive layer is provided with at least one electrode plate, and there is an overlapping region between an orthographic projection of the electrode plate on the substrate and an orthographic projection of the active layer between the two gate electrodes on the substrate.

Abstract: This disclosure discloses a multiplayer somatosensory system, method, and apparatus combining virtual and reality, and a medium, which belongs to the field of human-computer interaction. The system includes: a computer device, and a simulation carrier, n simulation firearms and a display apparatus; where the simulation carrier includes a driver's seat and n passenger seats; the display apparatus is configured to display a virtual environment picture and n aiming points provided by the computer device; and the computer device is configured to control a virtual carrier to change a driving direction in the virtual environment; control the virtual carrier to change a driving speed in the virtual environment; and shoot a virtual object aimed at an ith aiming point in the virtual environment in response to a shooting operation on an ith simulation firearm in the n simulation firearms.

Abstract: Methods, systems and devices for implementing an adaptive color transform (ACT) during image/video encoding and decoding, including: determining, for a conversion between a video comprising a block and a bitstream of the video, that a size of the block is greater than a maximum allowed size for an ACT mode, and performing, based on the determining, the conversion, wherein, in response to the size of the block being greater than the maximum allowed size for the ACT mode, the block is partitioned into multiple sub-blocks, and wherein each of the multiple sub-blocks share a same prediction mode, and the ACT mode is enabled at a sub-block level.

Abstract: A method for implementing an adaptive colour transform (ACT) mode during image/video encoding and decoding includes performing a conversion between a current video block of a video and a bitstream of the video, wherein the current video block is coded using the ACT mode, wherein the conversion includes applying an inverse ACT transform on the current video block according to a rule, and wherein the rule specifies that a clipping operation, based on a bit depth of the current video block, is applied to an input of the inverse ACT transform.

Abstract: The present invention relates to a nozzle device assembly for the automatic feeding in deep-water aquaculture and feeding system thereof and belonging to technical field of aquaculture device. It comprises a conical nozzle and a feeding pipe joint, wherein the feeding pipe joint further comprises a vacuum chamber, a bait inlet and a feeding pipe interface, the bait inlet is provided on the side wall of the vacuum chamber, wherein the junction between vacuum chamber and feeding pipe interface is an arc-shaped transition zone, wherein a cavity is formed between conical nozzle and vacuum chamber wall. The present invention also provides a feeding system equipped with the nozzle device assembly. It can keep the water velocity from the nozzle constant, so as to transport the bait to the deep-water cage 10 meters underwater. The bait is evenly dispersed in conveying water body.

Abstract: The present invention relates to a nozzle device assembly for the automatic feeding in deep-water aquaculture and feeding system thereof and belonging to technical field of aquaculture device. It comprises a conical nozzle and a feeding pipe joint, wherein the feeding pipe joint further comprises a vacuum chamber, a bait inlet and a feeding pipe interface, the bait inlet is provided on the side wall of the vacuum chamber, wherein the junction between vacuum chamber and feeding pipe interface is an arc-shaped transition zone, wherein a cavity is formed between conical nozzle and vacuum chamber wall. The present invention also provides a feeding system equipped with the nozzle device assembly. It can keep the water velocity from the nozzle constant, so as to transport the bait to the deep-water cage 10 meters underwater. The bait is evenly dispersed in conveying water body.

Abstract: A display device control method includes when an operation on an on-screen display (OSD) input device is received, determining whether a signal generated by operating the OSD input device is currently sent to an OSD system or an operating system (OS); and when the signal generated by operating the OSD input device is currently sent to the OS, switching, according to a control signal generated by the OSD input device, the control signal from being sent to the OSD system to being sent to the OS. This application further provides a display device.

Abstract: An apparatus, having a server and processor, is configured to receive a first set of security rules applicable to a set of users or a set of files for a first period of time. The first set of security rules are executable in an order of priority. The processor receives an interim security policy that is different from the first set of security rules. The interim security policy is applicable to a subset of the set of users for a second period of time that is less than the first period, or a subset of the set of files for a second period of time that is less than the first period. The processor determines, in the first set of security rules, an insertion point among the order of priority. The processor executes, at the insertion point and in the first set of security rules, the interim security policy.

Abstract: A method of video processing includes determining, for a conversion between a video component of a video comprising a current video block and a bitstream representation of the video, that a first coding tool is used based on a rule for the current video block; and performing the conversion according to the determining, wherein the first coding tool includes transforming a representation of a visual signal between two color spaces, and where the rule specifies that a first quantization parameter (QP) offset for a luma channel of the current video block is equal to K1 and a second QP offset for a first chroma channel of the current video block is K1+O, where K1 and O are integers.

Abstract: Provides is a method for detecting a complex target in pedestrian re-identification video streams based on an event-related potential (ERP). According to the method, video streams of a complex target in different scenarios are collected, and are made into experimental paradigms, and electroencephalogram (EEG) data of a subject during watching of a video content is collected. Then brain electrical activity mapping (BEAM) is analyzed, and ERP features are marked, including P300 and P300-D, which correspond to target emergence and target disappearance respectively. Positive and negative sample pairs are constructed, and essential features between classes are obtained based on a method of contrastive representation learning and a method of spatial-temporal feature attention extraction, so as to solve the extreme class imbalance problem of samples and the problem of how to distinguish between two similar classes in a video paradigm.

Abstract: A resource allocation method includes: receiving a placement group creation request, where the placement group creation request is for providing placement group creation requirement information for a cloud server, and the placement group creation request includes a target application type and a target SLA; generating placement group creation guide information based on the placement group creation request, where the placement group creation guide information includes a partition quantity of a placement group and an instance specification of the placement group; and creating the placement group based on the placement group creation guide information.

Abstract: A plurality of different images of a same region of interest in an object are input into a set of neural networks, wherein each image of the region has been captured under a different value of a variable condition. A classification for each image is generated by the set of neural networks, wherein each classification includes a confidence score in a prediction of whether a feature is present in the region. The image classifications are ensembled to generate a final classification for the region. By applying a loss function, a loss is computed based on comparing the final classification to a ground truth of whether the feature is present in the region. The parameters of the set of neural networks are adjusted based on the computed loss.

Abstract: Controlling application logging, including: identifying one or more relationships between a plurality of classes of an object oriented application; generating a tree structure comprised of a plurality of nodes and a plurality of branches, where each of the plurality of branches is comprised of at least one node from the plurality of nodes, based on the one or more identified relationships, where a first one or more nodes of the plurality of nodes correspond to one or more classes of the object-oriented application; assigning a weight to each of the plurality of branches, based at least in part on an identified relationship corresponding to each of the one or more nodes comprising each of the plurality of branches; and determining a logging level to each branch of the plurality of branches, based on the assigned weight for each branch of the plurality of branches.

Abstract: A pixel circuit, a pixel driving method and a display device. The pixel circuit includes a light-emitting element, a driving circuit, a first energy storage circuit, a second energy storage circuit, a data writing circuit, and a compensation control circuit. The data writing circuit controls writing of a data voltage on a data line into a data writing node under control of a scanning signal. The compensation control circuit controls whether a second node is connected with or disconnected from a compensation node under control of a first reset signal. The compensation node is electrically connected to a third node, and/or, the compensation node is electrically connected to a second terminal of the driving circuit. The present disclosure can achieve high-frequency driving under the premise of sufficient compensating for the threshold voltage of the driving transistor included in the driving circuit.

Abstract: A pixel driving circuit, including: a driving transistor, and first and second energy storage elements; a first reset sub-circuit configured to write an initialization voltage signal to a third node in response to a first reset signal; a second reset sub-circuit configured to, in response to a second reset signal, turn it conductive between a gate of the driving transistor and a fourth node and reset the two; a data writing sub-circuit configured to write a data voltage signal to the second energy storage element in response to a scanning signal; and a light emitting control sub-circuit configured to turn it conductive between a first electrode of the driving transistor and a power supply terminal in response to a first light emitting control signal, and transmit the data voltage signal to the gate of the driving transistor in response to a second light emitting control signal.

Abstract: An engineered microorganism, which comprises one or more of a gene encoding an aromatic amino acid transaminase, a gene encoding phenylalanine dehydrogenase, a gene encoding phenylpyruvate decarboxylase, a gene encoding an aldehyde reductase, a gene encoding glutamate dehydrogenase, and a gene encoding a phenylalanine transport protein, or a functional equivalent thereof. The present invention also relates to a composition comprising the engineered microorganism; a method for using the engineered microorganism or the composition to alleviate and/or treat diseases and/or conditions associated with hyperphenylalaninemia; and use of the engineered microorganism or the composition in the preparation of medicaments or health products for treating diseases and/or conditions associated with hyperphenylalaninemia.

Abstract: In one embodiment, a method includes accessing a window of motion data collected by a motion sensor of a device worn by a user and selecting motion data in the window about or more particular axes of the motion sensor. The method further includes determining a ballistocardiogram (BCG) signal in the selected motion data and determining whether the BCG signal in the selected motion data satisfies a signal-quality metric. If the BCG signal in the selected motion data satisfies the signal-quality metric, then the method includes (1) determining one or more heart-beat metrics of the user from the selected motion data; and (2) estimating, based on the one or more determined heart-beat metrics, a stress condition of the user at a time coincident with the window of motion data.