Abstract: Embodiments of the present application provides a ray scanning apparatus, which includes: a conveying device for conveying an object under inspection to pass through a scanning region of the ray scanning apparatus; a ray source assembly including a plurality of ray source modules, each of the ray source modules including at least one ray source point emitting a ray beam; and a detector assembly for detecting rays transmitting through the object under inspection during scanning and including a plurality of detector sets.

Abstract: This disclosure relates generally to video coding and particularly to methods and systems for providing signaling schemes for jointly coding of motion vector difference with adaptive resolution in compound-reference inter-prediction. An example method for processing a current video block of a video stream is disclosed. The method includes receiving the video stream; determining from the video stream whether joint motion vector difference (MVD) coding is applied to the current video block; determining from the video stream whether adaptive MVD pixel resolution is applied to the current video block; and decoding the current video block based on whether joint MVD coding and whether adaptive MVD pixel resolution are applied to the current video block.

Abstract: The disclosure provides a high-efficient swift stepless layering water intaking gate device, is including setting up the water intaking gate slot of the relative setting of the inlet port both sides on the dam body, its characterized in that: a plurality of sections of door leaves are arranged in the water taking gate groove from bottom to top; all the door leaves in the water intaking gate groove are divided into a group, and the adjacent door leaves are connected by adopting an internode connecting plate to form an integral water intaking gate; or all the gate leaves in the water intake gate groove are divided into a plurality of groups to form a plurality of sets of stop log type water intake gates, each set of stop log type water intake gate is provided with a plurality of sections of gate leaves.

Abstract: A ray scanning apparatus, including: a conveying device; a ray source assembly including a plurality of ray source modules arranged around the scanning area in a non-enclosed structure opened on one side of the scanning area; and a detector assembly including a plurality of detector sets arranged around the scanning area in a non-enclosed structure opened on one side of the scanning area, where the opening of the non-enclosed structure of the ray source assembly is opposite to the opening of the non-enclosed structure of the detector assembly, the plurality of detector sets are fixed in a same plane perpendicular to the conveying direction of the object under inspection, and the plurality of ray source modules of the ray source assembly are arranged in a plurality of different planes perpendicular to the conveying direction of the object under inspection.

Abstract: The invention discloses a synthesizing method of benzimidazole derivant and intermediate, which is characterized by the following: proceeding arylation among aryl halide and primary amine; adopting L-pro as additive, cuprous iodide as catalyst; proceeding molecular arylation coupling reaction for aryl iodide or aryl bromide and primary amine; adopting iodo phenylamine compound and bromophenylamine compound as starting material; synthesizing the material through several-step transformation.

Abstract: The present disclosure relates to an earphone, comprising: a sound production component, at least a portion of the sound production component extending into a concha cavity; ear hook disposed between an auricle and a head of the user, extending toward a side of the auricle away from the head, and connecting the sound production component; in a non-wearing state, the ear hook and the sound production component form a first projection on a first plane comprising an outer contour, a first end contour, an inner contour, and a second end contour, the inner contour, the first end contour, the second end contour, and a tangent segment connecting the first end contour and the second end contour define a third closed curve, a ratio of a projection area of the sound production component on the first plane to a third area of the third closed curve is between 0.67 and 1.06.

Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. The processing circuitry receives coded information of a current block in a current picture from a coded video bitstream, the coded information is indicative of applying local illumination compensation (LIC) on the current block according to a reference block in a reference picture. The processing circuitry constructs a parameter set list for the LIC, the parameter set list comprising a plurality of parameter sets for the LIC, and determines a selected parameter set from the parameter set list according to an index that is decoded from the coded video bitstream. The processing circuitry performs the LIC on the current block based on the selected parameter set to generate compensated samples of the current block according to the reference block in the reference picture.

Abstract: A multi-layered scaffold useful for osteochondral complex defects. The multi-layered scaffold can be prepared by photopolymerizing a multi-layer scaffold precursor including: a first layer disposed on a surface of a second layer, wherein the first layer includes a first tri-block poly(lactide-co-propylene glycol-co-lactide) dimethacrylate; and the second layer includes a second tri-block poly(lactide-co-propylene glycol-co-lactide) dimethacrylate, hydroxyapatite nanoparticles covalently conjugated to one or more hydroxyethyl methacrylate moieties via an optional linker, and a photoinitiator, wherein the nanoparticles comprise hydroxyapatite, tricalcium phosphate, silicon dioxide, bioglass, or a mixture thereof.

Abstract: Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. In a method, prediction information for a current block is decoded. The prediction information indicates a first intra prediction mode and a secondary transform index, based on which a secondary transform core is determined. A first transform coefficient block is de-quantized from the prediction information. A size of the first transform coefficient block is less than a size of the secondary transform core. A part of a second transform coefficient block is generated based on the first transform coefficient block and the secondary transform core. A size of the second transform coefficient block equals the size of the secondary transform core. A size of the part of the second transform coefficient equals the size of the first transform coefficient block. The current block is reconstructed based on the part of the second transform coefficient block.

Abstract: Information recommendation system usually involve a multitask problem, which tries to predict not only users' click-through rate (CTR) but also the post-click conversion rate (CVR). At the same time, for multi-functional information systems, there are commonly multiple services for users, such as news feed, search engine, and product suggestions. The prediction/ranking model should be conducted in a multi-scene manner. In the present patent document, embodiments of a unified ranking model for such a multi-task and multi-scene problem are disclosed. The disclosed model explores independent and non-shared embeddings for each task and scene, which reduces the coupling between tasks and scenes. Therefore, new tasks or scenes may be added easily. Besides, a simplified network may be chosen beyond the embedding layer, which largely improves the ranking efficiency for various online services. Extensive offline and online experiments demonstrated the superiority of model embodiments.

Abstract: The present disclosure provides an earphone comprising a sound production component and an ear hook. In a wearing state, the ear hook is configured to place the sound production component at a position near an ear canal but not blocking the ear canal. An inner contour of the ear hook's projection on a user's sagittal plane includes a first curve having an extremum point in a first direction. The first direction is perpendicular to a long-axis direction of a projection of the sound production component on the sagittal plane. The extremum point is located behind a projection point of an upper vertex of the ear hook on the sagittal plane, and the upper vertex is a highest point of an inner contour of the ear hook along the user's vertical axis. An inclination angle of the long-axis direction relative to a horizontal direction is within a range of 13°-21°.

Abstract: This disclosure relates generally to video coding and particularly to methods and systems for deriving offsets in cross-component transform coefficient level reconstruction. An example method for decoding a current video block of a video bitstream is disclosed. The method includes receiving a coded video bitstream; extracting, from the coded video bitstream, a first transform coefficient of a first color component for a current video block; determining a second transform coefficient of a second color component for the current video block; deriving an offset value based on at least one of the following: a quantization step size, or the first transform coefficient; adding the offset value to the second transform coefficient to generate a modified second transform coefficient for the second color component; and decoding the current video block based on the first transform coefficient and the modified second transform coefficient of the second color component.

Abstract: A method, computer program, and computer system are provided for encoding/decoding video data. Video data including (1) a chroma component having a first nominal angle and a first delta angle and (2) a luma component having a second nominal angle and a second delta angle is received. An index associated with the first delta angle is parsed by an encoder and parsed by a decoder. The video data is encoded and/or decoded using intra prediction based on the parsed index.

Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes processing circuitry. The processing circuitry decodes from a coded video bitstream, transform coefficients associated with a coding block that is a non rectangular partition of a picture. Further, the processing circuitry determines residuals of the coding block based on the transform coefficients, and reconstructs samples of the coding block based on the residuals of the coding block.

Abstract: A method performed by a video decoder includes receiving a coded video bitstream including a current picture, a first reference picture, a second reference picture, and a joint motion vector difference (JMVD) associated with at least one block in the current picture. The method includes determining whether one or more scaling factors are used for an adaptive motion vector difference resolution (AMVD) based JMVD based on a predetermined condition. The method includes, in response to determining the one or more scaling factors are used for the AMVD based JMVD, scaling the JMVD based on the one or more scaling factors. The method includes deriving a first MVD for the first reference picture based on the scaled JMVD. The method includes deriving a second MVD for the second reference picture based on the derived first MVD. The method includes reconstructing the at least one block based on the derived first MVD and the derived second MVD.

Abstract: A reusable protective clothing includes a one-piece protective suit which includes integrated top and trousers attached with gloves and shoe covers, and a protective headpiece having a face shield. A front side of the protective headpiece is provided with a full-vision goggle with 180-degree field of view, the full-vision goggle is integrated with the face shield, a back side of the protective headpiece is provided with a protective hood made of a material of the one-piece protective suit, the protective hood is integrated with the top, the front side of the protective headpiece is provided with an air vent for a mouth and a nose configured according to facial features of a wearer, and an outer side of the protective headpiece is provided with ear-shaped hooks. The protective clothing is designed according to application environment and medical requirements to prevent exposure to pathogenic microorganisms.

Abstract: Aspects of the disclosure provide a method, an apparatus, and non-transitory computer-readable storage medium for video decoding. The apparatus includes processing circuitry configured to reconstruct an area in a block in a current picture from a coded video bitstream. The block includes one or more coding blocks (CBs) in the current picture. After the reconstructing, the processing circuitry determines whether to update a previous local reference range for an intra block copy (IBC) mode based on a content of the reconstructed area and/or prediction information of the reconstructed area. In response to a determination not to update the previous local reference range for the IBC mode, the previous local reference range for the IBC mode is not updated. The processing circuitry decodes a coding block in the current picture using the IBC mode that is based on the previous local reference range, which does not include the reconstructed area.

Abstract: The present disclosure relates to systems and methods for image processing. The method may include obtaining a first image and a second image of a first modality of a target object. The first image may correspond to a first state of the target object, and the second image may correspond to a second state of the target object. The method may include obtaining a third image of a second modality of the target object. The third image may correspond to the first state of the target object. The method may further include determining, based on the first image, the second image, the third image, and an image processing model, a fourth image of the second modality of the target object under the second state.

Abstract: A video bitstream including coding information of a current block in a current picture is received, where the coding information indicates that the current block is coded with an intra template matching prediction mode. At least one template for predicting the current block is determined. Each of the at least one template is a respective candidate template of a plurality of template types available in the intra template matching prediction mode. The candidate templates are associated with one of a shape of the current block, a size of the current block, an intra prediction mode of the current block, and distances between the current block and the candidate templates of the plurality of template types. The candidate templates include different combinations of neighboring reconstructed samples. The current block is reconstructed using template match in the intra template matching prediction mode based on the determined at least one template.

Abstract: A method, computer program, and computer system are provided for encoding video data. Luma and chroma samples are identified from image data corresponding to a video frame. In particular, at least one chroma sample may be predicted from at least one luma sample based on a DC contribution from a chroma component of the image data and an AC contribution from a luma component of the image data. Also, a plurality of linear models may be determined from the identified luma and chroma samples. The luma and chroma samples may be classified into a number of categories corresponding to a number of linear models, where each category has at least one corresponding linear model parameters signaled to the bitstream; the chroma sample prediction may be further based on such parameters.