Abstract: An electrochemical apparatus includes a positive electrode plate and an electrolyte. The positive electrode plate includes a positive electrode current collector and a positive electrode material layer disposed on at least one surface of the positive electrode current collector, the positive electrode material layer includes a positive electrode active material, and the positive electrode active material contains cobalt and nickel, where based on a mass of the positive electrode active material, a mass percentage of the nickel is B %, where 0.05?B?20. The electrolyte includes lithium bis(oxalato) borate and 1,3,6-hexanetricarbonitrile, where based on a mass of the electrolyte, a mass percentage of the lithium bis(oxalato) borate is C % and a mass percentage of the 1,3,6-hexanetricarbonitrile is D %. The electrochemical apparatus satisfies 0.1?(C+D)/B?23.

Abstract: A method and apparatus comprising computer code configured to cause a processor or processors to receive a video bitstream comprising a current block in a current picture and reconstruct the current block by transforming the current block by a neural network comprising a plurality of upsample modules and activation modules, and at least one of the upsample modules includes a convolution layer and a pixel shuffle layer, and at least one of the activation modules includes a LeakyReLu function and a convolution function.

Abstract: Systems and methods for receiving a coded video bitstream including a current frame, a first reference frame and a second reference frame associated with a current block in the current frame, a joint motion vector difference (JMVD) associated with the first reference frame and the second reference frame, and a flag indicating whether one or more scaling factors are used to derive a motion vector difference (MVD) from the JMVD. A first/second MVD associated with the first/second reference frame may be derived based on applying a first/second scaling factor in the one or more scaling factors to the JMVD or based on a distance between the first/second reference frame and the current frame. The current block may be decoded based on the first MVD and the second MVD.

Abstract: In a method of decoding, a first flag of a sequence parameter set (SPS) that is referred to by a current picture is obtained. The current picture is decoded based on whether the first flag indicates the reference picture resampling is enabled. The first flag equal to a first value indicates that the reference picture resampling is enabled and the current picture is allowed to include slices that refer to a reference picture with at least one of a different spatial resolution or a different scaling window in an active entry of a reference pictures list. The first flag equal to a second value indicates that the reference picture resampling is disabled and no slice of the current picture refers to the reference picture with the at least one of the different spatial resolution or the different scaling window in the active entry of the reference picture list.

Abstract: A method of encoding a mesh includes determining a symmetry plane that divides the mesh into a first side and a second side opposite the first side, the mesh comprising a plurality of vertices, the first side comprising a first set of vertices, the second side comprising a second set of vertices; determining, for each vertex in the first set, a predicted vertex on the second side that is symmetric to a corresponding vertex in the first set; determining a transformation function that transforms each predicted vertex on the second side, the transformation function determined in accordance with a loss function; applying the transformation function that transforms each predicted vertex on the second side; determining a displacement vector between each transformed predicted vertex and a corresponding vertex in the second set; and generating a bitstream that comprises each encoded vertex in the first set and each displacement vector.

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 and apparatus comprising computer code configured to cause a processor or processors to receive a video bitstream comprising a current block in a current picture and reconstruct the current block by transforming the current block by a neural network comprising a plurality of upsample modules and activation modules, and at least one of the activation modules includes a LeakyReLu function and a convolution function.

Abstract: The present invention pertains to the field of oilfield stimulation technologies for oil and gas field development, in particular to an instant soluble temperature and salt resistant polyacrylamide and the preparation method and application thereof, and the polyacrylamide is modified by adding rigid temperature and salt resistant monomer containing benzene ring and cationic fluorinated hydrophobic monomer on the basis of acrylamide monomer and sodium acrylate monomer, and then polymerized to obtain instant soluble temperature and salt resistant polyacrylamide. The temperature and salt resistant monomer containing benzene ring can improve the thermal stability and temperature and salt resistance of polyacrylamide, while the long-chain cationic fluorinated hydrophobic monomer can enhance the hydrophobicity of polymer. The comprehensive properties of polymer is improved by appropriate intermolecular association.

Abstract: Aspects of the disclosure provide a method and an apparatus for video decoding. The apparatus includes processing circuitry that decodes prediction information indicating bi-prediction with coding unit (CU)-level weights (BCW) for a current block in a current picture. The processing circuitry performs template matching (TM) on BCW candidate weights by determining a respective TM cost corresponding to each BCW candidate weight. Each TM cost is determined based on a portion or all of a current template of the current block and a respective bi-predictor template. The bi-predictor template is based on the respective BCW candidate weight, a portion or all of a first reference template in a first reference picture, and a portion or all of a second reference template in a second reference picture. The processing circuitry reorders the BCW candidate weights based on the respectively determined TM costs.

Abstract: Systems and method may provide unmanned aerial vehicle (UAV) connection monitoring and location reporting. A method implemented by at least one processor includes receiving a location report indicating a location of the UAV from a first server; receiving a lost connection report indicating a loss of connection with the UAV; receiving a connection resumption report indicating that the connection with the UAV has been re-established; and based on receiving the connection resumption report, transmitting a location update request to the first server.

Abstract: The present disclosure provides a method and a system for quickly determining transient stability of a half-wavelength transmission system. The method includes: obtaining power and a power angle of a feeding-end generator of a half-wavelength transmission system; and determining transient power angle stability and a power angle instability mode of the half-wavelength transmission system by using a constructed index system, where two power angle instability modes, that is, an instability mode 1 and an instability mode 2, are specifically constructed for the half-wavelength transmission system based on an equal area method. Based on the equal area method, the present disclosure constructs two instability modes specific to the half-wavelength transmission system, so as to accurately describe transient power angle characteristics of the half-wavelength transmission system under a severe fault, and characteristics of the two instability modes are significantly different from those of an AC transmission mode.

Abstract: Methods, apparatus, and computer readable storage medium for implementation of signaling EOC/EOR. The method includes receiving a video bitstream comprising a transform block having two dimensions, the transform block being entropy encoded; determining whether a one-dimensional transform skip is applied to the transform block based on a syntax element in the video bitstream; in response to the one-dimensional transform skip being applied to the transform block, obtaining, from the video bitstream, an end position value associated with the transform block, the end position value indicating only one of a horizontal coordinate end position in the transform block and a vertical coordinate end position in the transform block; and retrieving the transform block from the video bitstream according to the end position value.

Abstract: This disclosure relates to a harmonized design among multiple reference line intra prediction, transform partitioning, and transform kernels or processing video information. One example method is disclosed. The method includes retrieving a data block of a video frame, the data block having an adjacent reference line and one or more non-adjacent reference lines in the video frame; determining whether one of the one or more non-adjacent reference lines is to be used for intra prediction of the data block. When an adjacent reference line is used for the intra prediction of the data block, selecting a target transform kernel from a first set of transform kernels to transform the data block; and when a non-adjacent reference line is used for the intra prediction of the data block, selecting the target transform kernel from a second set of transform kernels to transform the data block.

Abstract: A method of loop filtering in a video coding process comprises receiving image data; analyzing the image data; flexibility partitioning the image data into loop filtering blocks (LFBs) to allow the size of LFBs in at least one of a first row and a first column in a same frame to be smaller than other LFBs within the same frame; and applying a loop filter to the LFBs.

Abstract: An encoding method includes capturing an original screen video to be encoded, the original screen video including frames of screen images, reading image feature parameters of the frames of screen images in the original screen video, determining video encoding parameters for the original screen video according to the image feature parameters, acquiring a screen display resolution of a screen sharing object, and encoding the original screen video according to the video encoding parameters and with reference to the screen display resolution of the screen sharing object.

Abstract: Aspects of the disclosure provide methods and apparatuses for video coding. A method for video decoding includes receiving a coded video bitstream that includes prediction information of a current block in a current picture. The prediction information indicates that an adaptive motion vector prediction (AMVP) mode and an adaptive motion vector resolution (AMVR) mode are applied to the current block. A set of motion vector (MV) resolutions in the AMVR mode is available for the current block. The method includes determining respective template matching (TM) costs corresponding to each of a plurality of MV resolutions in the set of MV resolutions based on the plurality of MV resolutions and motion information of the current block, reordering the plurality of MV resolutions based on the determined TM costs, selecting an MV resolution from the reordered plurality of MV resolutions, and reconstructing the current block based on the selected MV resolution.

Abstract: An apparatus includes processing circuitry that is configured to determine whether at least one sample of a plurality of samples in a first template of a current block is in an intra coded block that is a spatial neighboring block of the current block, the first template including one or more samples of (1) top neighboring blocks and (2) left neighboring blocks of the current block. The processing circuitry is configured to, when (i) the at least one sample is included in the intra coded block and (ii) a template matching mode is applied to the current block, exclude the at least one sample from the first template to generate a second template for the current block. The processing circuitry is configured to determine a motion vector of the current block based on the second template. The processing circuitry is configured to reconstruct the current block based on the MV.

Abstract: An apparatus for video decoding including processing circuitry is provided. The processing circuitry is configured to receive a bitstream that includes coded information indicating a filter shape of a sample offset filter to be applied to a reconstructed sample of a first component in a current picture, the filter shape of the sample offset filter being one of a plurality of filter shapes, each of the plurality of filter shapes including different first reconstructed samples of a second component in the current picture. The processing circuitry is configured to determine an output value of the sample offset filter based on the first reconstructed samples in the filter shape indicated by the coded information. The processing circuitry is configured to determine a filtered sample value of the reconstructed sample of the first component based on the reconstructed sample and the output value of the sample offset filter.

Abstract: An apparatus includes processing circuitry that is configured to receive a bitstream including coded information of a current block. The processing circuitry is configured to partition the current block into a first partition and a second partition based on a geometric partition mode (GPM). The processing circuitry is configured to determine a first prediction mode for the first partition based on a first number of direct neighboring reconstructed samples of the current block being larger than a threshold value. The processing circuitry is configured t0, when the first number of direct neighboring reconstructed samples of the current block is less than the threshold value, infer that the first prediction mode is inter prediction mode, a flag indicating whether the current block is intra coded or inter coded not being signaled in the bitstream, and reconstruct the first partition of the current block based on the first prediction mode.

Abstract: A method for coding video data, executable by a processor, includes receiving video data; entropy-parsing the received video data into one or more components; de-quantizing the one or more entropy-parsed components; performing a joint component secondary transformation (JCST) on the one or more components in accordance with a JCST kernel selected based on one of (i) a prediction mode corresponding to the video data, (ii) a primary transform type of a current block, and (iii) a secondary transform kernel selected for the current block; and decoding the video data based on one or more residual components corresponding to the joint component secondary transformed components.