Abstract: A method for video encoding, a method for video decoding, and apparatuses thereof are provided. A template-based coding scheme is applied to derive one or more coding parameters associated with a video block from a video frame based on a template of the video block. Reference-picture-resampling (RPR) prediction samples for the video block are generated based on the one or more coding parameters. The RPR prediction samples are filtered by using a filter to generate filtered RPR prediction samples for the video block. The filter is adaptively determined based on the template of the video block.

Abstract: Methods for video decoding and encoding, apparatuses and non-transitory storage media are provided. In one decoding method, the decoder obtains one or more motion vector (MV) candidates from one or more candidate lists according to a predetermined order. The candidate lists include an affine advanced motion vector prediction (AMVP) candidate list, a regular merge candidate list, and an affine merge candidate list, and the one or more MV candidates are derived from a plurality of neighbor blocks of a current block. The decoder may obtain one or more control point motion vectors (CPMVs) for the current block based on the one or more MV candidates.

Abstract: A method for video encoding comprises determining a mode of Local Illumination Compensation (LIC) for the video encoding to be enabled; calculating LIC parameters for the mode of LIC with a limited number of reference sample pairs, wherein a reference sample pair refers to a luma reference sample and a chroma reference sample; enabling the mode of LIC for the video encoding with the calculated LIC parameters to perform LIC for inter prediction to generate a prediction residual; and forming and outputting a bit-stream encoded with the prediction residual and prediction mode information indicating the mode of LIC.

Abstract: Methods for video decoding and encoding, apparatuses and non-transitory storage media are provided. In one decoding method, the decoder obtains one or more first parameters based on a first neighbor block selected from a plurality of inter-coded neighbor blocks of a current block, and obtains one or more second parameters based on a second neighbor block selected from a plurality of affine-coded neighbor blocks or a plurality of historically affine-coded neighbor blocks. The decoder constructs an affine model based on the one or more first parameters and the one or more second parameters. The decoder may project the affine model onto the current block to obtain a translational motion vector based on a specific position within the current block or a plurality of control point motion vectors for the current block, depending on whether the current block is coded in a regular inter mode or an affine mode.

Abstract: Methods for video decoding and encoding, apparatuses and non-transitory computer-readable storage media thereof are provided. One method for video decoding includes obtaining, by a decoder, a current coding unit (CU) coded with a Geometric Partition Mode (GPM); selecting, by the decoder, a candidate from a set of Merge candidates with Block Vector Difference (MBVD) candidates based on a distance index and a direction index; obtaining, by the decoder, a first Intra Block Copy (IBC) prediction using the candidate and a second prediction; and obtaining, by the decoder, a final prediction for the current CU using the first IBC prediction and the second prediction.

Abstract: Methods for video decoding and encoding, apparatuses and non-transitory storage media are provided. In one decoding method, the decoder obtains a set of blending strengths for a current block, where the current block is partitioned into two parts along a partition line for prediction in a geometric partitioning mode. Furthermore, the decoder obtains a mapping relationship between a plurality of blending indices and the blending strengths in the set of blending strengths. Moreover, the decoder obtains a binarized value indicating one of the blending indices, where the blending indices are binarized with variable length code. Further, the decoder determines a blending strength of the current block based on the binarized value and the mapping relationship.

Abstract: A method of video coding, an apparatus, and a non-transitory computer-readable storage medium thereof are provided. The method includes obtaining one or more affine candidates from a plurality of non-adjacent neighbor blocks that are non-adjacent to a current block. The method may further include obtaining one or more control point motion vectors (CPMVs) for the current block based on the one or more affine candidates.

Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for video coding. In one method, a decoder derives a reference picture for a current coding block; the decoder derives a predictor sample based on a motion vector associated with the reference picture using a motion compensation process from the reference picture; the decoder determines whether the predictor sample is located outside the reference picture by a certain margin; and the decoder determines the predictor sample is out-of-boundary (OOB) in response to determining the predictor sample is located outside the reference picture by a certain margin.

Abstract: Implementations of the disclosure provide a video decoding apparatus and method for transform coefficient sign prediction on a video decoder side. The method includes: receiving a bitstream including a sequence of sign signaling bits; determining a sign prediction area in a transform block of a video frame from a video for performing the sign prediction for the transform coefficients of the transform block; generating a plurality of candidate hypotheses for a set of candidate transform coefficients associated with the sign prediction area of the transform block; selecting a hypothesis from the plurality of candidate hypotheses as a set of predicted signs for the set of candidate transform coefficients based on a cost function; and estimating original signs for the set of candidate transform coefficients based on the set of predicted signs and the sequence of sign signaling bits.

Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for video coding. In one method, a decoder derives a first reference picture and a second reference picture for a current coding block; the decoder derives a first predictor sample based on a first motion vector associated with the first reference picture using a motion compensation process from the first reference picture; the decoder derives a second predictor sample based on a second motion vector associated with the second reference picture using the motion compensation process from the second reference picture; and the decoder obtains a final predictor sample in the current coding block based on at least one of the first predictor sample or the second predictor sample and an out-of-boundary (OOB) condition.

Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for video coding and compression with high precision intra prediction technology. In one method, a decoder obtains a first control flag signaled at a specified level that comprises one of following levels: a Transform Block (TB) level, a Coding Block (CB) level, a slice level, a picture level, or a sequence level, where the first control flag indicates whether a Decoder-side High Precision Intra Mode Derivation (DHI) mode is enabled.

Abstract: Provided in the present invention are a carboxamide derivative having an RSK inhibitory effect, a pharmaceutical composition comprising same, and the use thereof. Specifically, provided in the present invention are a carboxamide derivative as represented by formula (I), which can be used as a p90 ribosomal S6 kinase (RSK) inhibitor, a tautomer, a stereoisomer, a hydrate, a solvate and a pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the compound, and the use thereof in the preparation of a pharmaceutical composition.

Abstract: Methods and apparatus are provided for video decoding/encoding. In a method provided, a decoder may obtain an original sample value of a current block; determine a slope adjustment for a model parameter in a compensation model; and determine, based on the slope adjustment, an updated model parameter in the compensation model. The decoder may further determine based on the updated model parameter and the original sample value, a refined sample value or a second sample value of the current block.

Abstract: Methods for video decoding and encoding, apparatuses, and non-transitory computer-readable storage media are provided. In one method, a decoder may obtain a first block vector (BV) and a second BV based on a bi-predicted intra block copy (IBC) mode. Additionally, the decoder may generate a first prediction block based on the first BV and generating, by the decoder, a second prediction block based on the second BV. Furthermore, the decoder may obtain a final prediction block for a current block based on the first prediction block and the second prediction block.

Abstract: Methods for video decoding and encoding, apparatuses and non-transitory storage media are provided. In one decoding method, the decoder determines that an advanced motion vector prediction (AMVP)-Merge (AM) mode is enabled for a current picture or a slice of the current picture. Furthermore, the decoder obtains an AMVP motion vector (MV) of a current block in the current picture, for a first list of reference pictures LX where X is 0 or 1, as an LX MV. Moreover, the decoder obtains a list of valid merge MV candidates for a second list of reference pictures L(1?X), where the list of valid merge MV candidates comprises merge candidates that have L(1?X) MV. Further, the decoder selects an L(1?X) MV of the AM mode among the list of valid merge MV candidates.

Abstract: A method for Cross-Component Sample Adaptive Offset (CCSAO) process is provided. The method comprises: determining a first rate-distortion (RD) cost for a block using a first classifier, wherein the first classifier having a first category number in a first value range, and wherein the first RD cost is the least among RD costs associated with classifiers having a category number in the first value range; determining a second RD cost for the block using a second classifier, wherein the second classifier having a second category number in a second value range, and wherein the second RD cost is the least among RD costs associated with classifiers having a category number in the second value range; and applying the first classifier as a classifier for the CCSAO process in response to determining the first RD cost is less than the second RD cost.

Abstract: Methods for video decoding and encoding, apparatuses and non-transitory storage media are provided. The method for video decoding includes: obtaining, by a decoder, a plurality of first motion vectors of a plurality of sub-blocks of a current block, based on a subblock-based temporal motion vector prediction (SbTMVP) mode; deriving, by the decoder, a set of linear model parameters by inputting the plurality of first motion vectors and a plurality of center positions of the plurality of sub-blocks into a linear regression process; and obtaining, by the decoder, a plurality of predictions of the plurality of sub-blocks based on the set of linear model parameters.

Abstract: Implementations of the disclosure provide a video processing method for motion information derivation. The video processing method may include determining, by a video decoder, that one or more motion related parameters for a video block in a video frame of a video are not signaled in a bitstream. The video processing method may further include determining, by the video decoder, the one or more motion related parameters for the video block by applying a coding matching technique.

Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for video decoding. In one method, a decoder determines a fusion scheme applied in decoder-side intra mode derivation (DIMD) mode and in template-based intra mode derivation (TIMD) mode, and the fusion scheme is applied as a weighted average of predictors in the DIMD mode and in the TIMD mode.

Abstract: A method for decoding video data. The method including obtaining, from a bitstream, a video block and region information, wherein the region information comprises an index indicating a region selected from a set of regions located external to the video block for deriving a multiple linear regression (MLR) model, obtaining luma and chroma sample values in the region based on the region information; deriving the MLR model using the luma and chroma sample values in the region, predicting each of the chroma sample values in the video block by applying the MLR model to corresponding luma sample values for that chroma sample, and obtaining decoded video block using the predicted chroma sample values.