Abstract: A time-series InSAR method for monitoring multi-dimensional deformation of a landslide includes the following steps: firstly, obtaining a deformation observation of a target landslide in a line-of-sight direction; and subsequently inputting the deformation observation into a monitoring model with a fractal composite structure deformation constraint model to thereby obtain deformation time series of a sliding mass in vertical, east-west, downslope, and perpendicular-to-downslope directions. This method can simultaneously obtain characteristics of the deformation time series of the sliding mass along four dimensions, namely the vertical, east-west, downslope, and perpendicular-to-downslope directions. A model constructed by the method covers linear, acceleration, periodicity, high frequency, and thermal expansion deformation, fully considering complexity of landslide deformation and having strong adaptability.

Abstract: A method and an apparatus for hybrid training of neural networks for video coding are provided. The method includes: obtaining, in an offline training stage, an offline trained network by training a first neural network offline using a plurality of first data sets; refining, in an online training stage, a plurality of neural network layers using a plurality of second data sets, wherein the plurality of neural network layers comprise at least one neural network layer in the offline trained network or in a second neural network connected to the offline trained network.

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: A method for video coding is provided. The method includes: setting, by an encoder, a first syntax element in a picture parameter set (PPS) specifying whether a picture corresponding to the PPS comprises more than one network abstraction layer (NAL) units and whether the more than one NAL units have a same NAL unit type; setting, by the encoder, a second syntax element in a picture header (PH) specifying whether the picture corresponding to the PH is an intra random access point (IRAP) picture or a gradual decoding refresh (GDR) picture, wherein a value of the first syntax element is set based on a value of the second syntax element being 1; and forming, by the encoder, a bitstream with the first syntax element and the second syntax element.

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: The present application provides an SFGT storage array, a storage chip, and a data-reading method. The SFGT storage array includes a true semi-floating gate array, a reference semi-floating gate array and a sense amplifier. The true semi-floating gate array includes a plurality of true semi-floating gate storage units, a plurality of first bit lines and a plurality of first word lines. Each of the plurality of first bit lines and each of the plurality of first word lines intersect to operate on one of the true semi-floating gate storage units. Each of the plurality of first bit lines is connected to a first input end of the sense amplifier. The reference semi-floating gate array includes a plurality of second bit lines. Each of the plurality of second bit lines is connected to a second input end of the sense amplifier.

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: An electronic apparatus performs a method of decoding video data. The method comprises, receiving, from bitstream, video data corresponding to a palette-mode coded block; determining a quantization parameter value from information included in a parameter set associated with the palette-mode coded block; identifying escape samples in the palette-mode coded block; in accordance with a determination that the quantization parameter value is greater than a threshold value: performing de-quantization on quantized escape samples according to a predefined formula to obtain reconstructed escape sample values; and in accordance with a determination that the quantization parameter value is less than or equal to the threshold value: setting the reconstructed escape samples to be the quantized escape sample values.

Abstract: An electronic apparatus performs a method of coding video data. The method comprises: receiving, from the bitstream, syntax elements associated with a coding unit, wherein the syntax elements include a first coded block flag (CBF) for residual samples of a first chroma component, a second CBF for residual samples of a second chroma component, and a third syntax element indicating whether adaptive color transform (ACT) is applied to the coding unit; determining whether to perform the chroma residual scaling to the residual samples of the chroma components according to the first CBF, the second CBF, and the third syntax element; in accordance with a determination to perform the chroma residual scaling to the residual samples of the first and second chroma components, scaling the residual samples of the at least one of the first and second chroma components based on a corresponding scaling parameter.

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: A method for video coding is provided. A plurality of coding units (CUs) are obtained from a picture. During decoding of a CU coded in a combined inter and intra prediction (CIIP) mode and with luma mapping with chroma scaling (LMCS) enabled, a plurality of reconstructed samples of a luma component are obtained in a mapped domain. The reconstructed samples of the luma component are converted from the mapped domain into an original domain by applying inverse mapping associated with the LMCS to obtain converted samples of the luma component in the original domain. Chroma scaling factors for decoding chroma samples of the CU are derived by using corresponding reconstructed samples of the luma component without clipping.

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: An electronic apparatus performs a method of decoding video data. The method includes: receiving, from the bitstream, a plurality of syntax elements associated with a coding unit, the plurality of syntax elements indicating the coding tree type of the coding unit, and whether the local dual tree mode is enabled for the coding unit; and in accordance with the determination that the coding tree type of the coding unit is a single tree, and the local dual tree mode is enabled for the coding unit: disabling the palette mode for the coding unit when the coding unit has the size equal to or less than a predefined threshold. The disabling palette mode for the coding unit may include: disabling the palette mode for both the luma component and chroma component of the coding unit, or disabling the palette mode for only the chroma component of the coding unit.

Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for video encoding. The method includes dividing a video block into multiple video subblocks, where at least one of the multiple video subblocks is associated with two motion vectors. The method may further include obtaining a first reference picture and a second reference picture associated with the two motion vectors; obtaining first prediction samples from the first reference picture and obtaining second prediction samples from the second reference picture; determining not to apply PROF for the video block based on a difference between control-point motion vectors; obtaining horizontal and vertical gradient values of the first prediction samples and second prediction samples for the PROF when the PROF is applied; obtaining motion refinements for samples in the video subblock according to the horizontal and vertical gradient values; and obtaining prediction samples of the video block based on the motion refinements.