Abstract: Devices and methods for Intra prediction are provided. The method includes: obtaining a value of an indication information of a current block. When the value of the indication information indicates the intra prediction mode of the current block is not comprised in the set of most probable modes, deriving the intra prediction mode IntraPredModeY of the current block by the following ordered steps: i. IntraPredModeY is set equal to intra_luma_mpm_remainder[xCb][yCb], ii. The value of IntraPredModeY is incremented by one. The method can improve the efficiency to determine the intra prediction mode of the current block.

Abstract: A method includes receiving a bitstream that includes coded information of a sequence of pictures. The coded information indicates an inter prediction of a current block in a current picture, and an adjustment factor to a linear formula that is used in a formula-based inter prediction of the inter prediction. The formula-based inter prediction generates a prediction sample of the current block based on a linear formula with one or more reconstructed samples in a reference block being input to the linear formula, the linear formula includes one or more parameters derived based on a current template of the current block and a reference template of the reference block. The method also includes applying the adjustment factor on the linear formula to generate an adjusted linear formula, and determining at least a reconstructed sample of the current block according to the adjusted linear formula.

Abstract: A method for operating a two-dimensional (2D) separable interpolation filter for coding a video, wherein the two-dimensional separable interpolation filter comprises a first and a second one-dimensional (1D) interpolation filter and a temporal buffer of a predetermined buffer size, wherein the method comprises: obtaining filter coefficients for the first one-dimensional interpolation filter of the two-dimensional interpolation filter; comparing a sum of positive filter coefficients of the obtained filter coefficients with a threshold; and upon determining that the sum of positive filter coefficients is larger than the threshold, amending one or more of the filter coefficients to obtain amended filter coefficients, wherein the one or more filter coefficients are amended such that a sum of positive filter coefficients of the amended filter coefficients is not larger than the threshold; applying the amended filter coefficients to samples of the video to obtain a value of a fractional sample position of the video

Abstract: Disclosed is an energy-balanced and efficient routing method that adopts a power control mechanism to reduce energy consumption, and the method involves two phases: routing establishment phase and data forwarding phase. In the routing establishment phase, a sink node broadcasts a beacon packet at a maximum transmission power to establish an initial path, and a receiving node updates the routing table according to beacon information and forwards the beacon packet. In the data forwarding phase, the present disclosure provides a new forwarding factor, which gives comprehensive consideration to energy efficiency and energy balance, selects a node with high energy efficiency and sufficient energy an optimal next-hop node, thereby extending the life cycle of the network. Further provided is a data protection and network recovery mechanism. Topological changes of the network, data forwarding failures and other problems caused by node movement can be solved.

Abstract: Apparatuses and methods for encoding and decoding a video are provided. The method includes determining whether at least one of two blocks of an image in a video is predicted with a combined inter-intra prediction (CIIP), where the two blocks include a first block (block Q) and a second block (block P). There is a boundary between the two blocks. The method further includes setting a boundary strength (Bs) for the boundary to a first value when at least one of the two blocks is predicted with the CHIP, and performing deblocking filter based on the Bs.

Abstract: A method of coding implemented by a decoding device, comprising obtaining a video bitstream; decoding the video bitstream to obtain an initial intra prediction mode value for chroma component of a current coding block; determining whether a ratio between a width for luma component of the current coding block and a width for chroma component of the current coding block is equal to a threshold or not; obtaining a mapped intra prediction mode value for chroma component of the current coding block according to a predefined mapping relationship and the initial intra prediction mode value, when it's determined that the ratio is equal to the threshold; obtaining a prediction sample value for chroma component of the current coding block according to the mapped intra prediction mode value.

Abstract: A method includes receiving a bitstream that comprises coded information of a current block, the coded information of the current block indicates a state transition path of a state machine, the state transition path of the state machine includes at least a first state transition associated with a first quantization shifting offset of one or more first transform coefficients in transform coefficients of the current block. The method also includes determining the first quantization shifting offset associated with the one or more first transform coefficients according to the first state transition; reconstructing the one or more first transform coefficients based on the first quantization shifting offset; calculating residuals in a spatial domain of the current block based on at least the one or more first transform coefficients; and reconstructing the current block according to the residuals in the spatial domain.

Abstract: A modular display screen chassis, including shells and one or more display modules. The shells have various preset sizes, and each shell is provided with a chamfer on its sides for splicing with a chamfer of an adjacent shell at a specific angle. The display modules 2 can be detachably attached on the shell 1, and each one has a fixed size. Each of the shells having various preset sizes corresponds to different numbers of the display modules.

Abstract: Aspects of the disclosure includes methods and apparatuses for video decoding and video encoding and a method of processing visual media data. Coded information in a bitstream is received. The coded information indicates whether filtering is to be applied to at least one of a current template of a current block in a current picture and a reference template of a reference block. The current block is predicted based on the reference block. When the coded information indicates that the filtering is to be applied, a plurality of samples in the at least one of the current template and the reference template is filtered. A linear model between the current template and the reference template is determined based on the filtered plurality of samples. The current block is reconstructed based on the linear model and the reference block.

Abstract: Disclosed are a reinforced magnesium substrate and a composite board with the same. The reinforced magnesium substrate includes the following components in parts by weight: 240-280 parts of magnesium oxide, 172-192 parts of wood fiber, 1.3-3.5 parts of citric acid, 1.3-3.5 parts of phosphoric acid, 1.3-3.5 parts of sodium sulfate, 90-120 parts of magnesium sulfate and 109-130 parts of water. The composite board with the reinforced magnesium substrate includes the reinforced magnesium substrate, wood board layers and a wear-resistant layer. The reinforced magnesium substrate is configured as a board core of the composite board; the wood board layers are arranged on the two sides of the reinforced magnesium substrate respectively; and the wear-resistant layer is arranged on at least one wood board layer and relatively fixed with the wood board layer.

Abstract: The present disclosure relates generally to video coding and picture partitioning methods. In particular, the disclosure is concerned with relations between partition constraint elements, by setting partitioning rules for different picture partitioning methods. The disclosure provides devices and corresponding methods for generating or processing a bitstream including encoded pictures, particularly for setting and including partition constraint element into the bitstream. One of the devices is configured to determine a minimum luma size of a leaf block resulting from quadtree splitting (?MinQtSizeY), determine a maximum luma size of a coding block where partitioning using a binary tree splitting is allowed (MaxBtSizeY) based on the MinQtSizeY, and include information for the determined MinQtSizeY into the bitstream.

Abstract: A prediction method for an image block comprising a first prediction sub-block and a second prediction sub-block, the prediction method comprising: parsing a first index from a bitstream, wherein the first index is used to obtain prediction information of the first prediction sub-block; parsing a second index from the bitstream; comparing the first index with the second index; adjusting the second index in the event that the second index is equal to or greater than the first index; and obtaining prediction information of the second prediction sub-block according to the adjusted second index.

Abstract: An example method of video decoding includes receiving a video bitstream comprising a plurality of blocks, including a current block. The method includes identifying an intra prediction mode for the current block which includes selecting multiple reference areas for the current block, each reference area of the multiple reference areas corresponding to a distinct reference block; generating a histogram from the multiple reference areas, including ceasing to generate the histogram when entries of the histogram meet a threshold value; and identifying an intra prediction mode based on one or more entries of the histogram. The method further includes decoding the current block using the intra prediction mode.

Abstract: An example method of video decoding includes receiving a video bitstream that includes multiple blocks, including a current block. The method also includes identifying a partial region of the current block, where residual data for the current block outside of the partial region is zero, and reconstructing the current block by applying a subblock transform to the partial region of the current block. Instructions for the example method may be stored in a computer system or storage medium.

Abstract: The present disclosure provides methods and devices of construct a candidate merge list for Intra block copy (IBC) mode, the method comprising: inserting a block vector of a left neighboring block of a current block into an initial merge list, when the left neighboring block is available and the left neighboring block is using IBC mode; inserting a block vector of an above neighboring block of the current block into the initial merge list, when the above neighboring block is available, the above neighboring block is using IBC mode and the block vector of the above neighboring block is not same as the block vector of the left neighboring block; inserting a block vector of the last candidate in a history based motion vector predictor (HMVP) into the initial merge list; obtaining a block vector of the current block according to the initial merge list.

Abstract: Methods and apparatuses for video decoding and video encoding are provided. A method for video decoding includes receiving coding information in a video bitstream. The coding information indicates that a current binary symbol associated with a syntax element of a block is entropy coded using context-adaptive binary arithmetic coding (CABAC) based on a set of contexts. Each context in the set of contexts corresponds to a probability estimation rule for the CABAC. A set of initial CABAC parameters is determined from a plurality sets of initial CABAC parameters of a context in the set of contexts. The method for video decoding includes entropy decoding, based on the determined set of initial CABAC parameters, the current binary symbol using the CABAC.

Abstract: A method includes receiving a bitstream of coded information for pictures. The coded information indicates a prediction of a current block using a model based prediction technique, the model based prediction technique generates a prediction sample of the current block based on a model with one or more reconstructed samples of a reference block being input to the model, the model includes one or more parameters derived based on a current template of the current block and a reference template of the reference block. The method also includes performing at least a clipping operation on at least one of the current template and the reference template to obtain clipped template samples; deriving one or more parameter values of the one or more parameters of the model according to the clipped template samples; and generating at least a prediction sample of the current block by the model.

Abstract: Some aspects of the disclosure provide a method of video decoding. For example, a coded video bitstream is received. The coded video bitstream includes coded information of a sequence of pictures, the coded information is indicative of a usage of a plurality of predictions for a final prediction of a current block in a current picture, the final prediction is a weighted sum of the plurality of predictions. Values of one or more weights for the current block are determined, the one or more weights vary the values for at least another block in the sequence of pictures. The final prediction of the current block is calculated as the weighted sum of the plurality of predictions of the current block according to the values of the one or more weights. The current block is reconstructed based on the final prediction of the current block.

Abstract: Methods and apparatuses for processing of picture data or picture feature data using a neural network with two or more layers are provided. The present disclosure may be applied in the field of artificial intelligence (AI)-based video or picture compression technologies, and in particular, to the field of neural network-based video compression technologies. According to the present disclosure, position within the neural network, at which auxiliary information may be entered for processing is selectable based on a gathering condition. The gathering condition may assess whether some prerequisite is fulfilled. Advantages may include better performance in terms of rate and/or disclosure due to the effect of increased flexibility in neural network configurability.

Abstract: A data transmission method and a related apparatus. A sending device performs binary phase shift keying BPSK mapping on a to-be-transmitted bit sequence to obtain a first sequence. The sending device performs coding modulation on the first sequence based on a generator matrix or a first sub-matrix including some rows of the generator matrix, to obtain a symbol sequence. The sending device sends the symbol sequence to a receiving device through a channel.