Abstract: Disclosed herein are systems, methods, and instrumentalities associated with performing motion compensation for a video block. A video processing device such as an encoder or a decoder in accordance with embodiments of the present disclosure may obtain a block of video data (e.g., a 4×4 subblock or a 8×8 subblock) and determine whether to split the block of video data for a motion compensation. Based on a determination to split the block of video data, the video processing device may be further configured to split the block of video data into multiple units (e.g., subblock partitions or sub-subblocks) and perform the motion compensation for the block of video data based on the multiple units obtained from the split. Based on a determination to not split the block of video data, the video processing device may be configured to perform the motion compensation for the block of video data at the block level.

Abstract: Systems, devices, and methods are described herein for extending the types of candidate modes that may be included in spatial geometric prediction mode (SGPM) candidate lists. An example device for video decoding may determine that SGPM is used for a current block. The device may derive an intra-prediction candidate based on a template of the current block. The device may generate an SGPM candidate list for the current block based on the intra-prediction candidate. The device may decode the current block based on the SGPM candidate list. The device may derive an intra block copy merge candidate for the current block and add the intra block copy merge candidate to the SGPM candidate list. The device may derive an inter merge candidate for the current block and add the inter merge candidate to the SGPM candidate list.

Abstract: A video device may employ bi-directional prediction in Geometric Partition Mode (GPM). A video device, which may be a video encoding and/or video decoding device, may determine, for a coding block, a first geometric partitioning mode (GPM) partition and a second GPM partition. The video device may obtain, for the coding block, a motion information merge candidate list comprising at least one bi-prediction motion information. The video device may determine, for the first GPM partition, first bi-predicted motion information, based on the motion information merge candidate list, and may predict the first GPM partition based on the first bi-prediction motion information. The video device may determine, for the second GPM partition, second bi-predicted motion information, based on the motion information merge candidate list, and may predict the second GPM partition based on the second bi-predicted motion information.

Abstract: Systems, methods, and instrumentalities may be provided for history-based motion vector prediction (HMVP) candidate reordering. A video decoding device may obtain a history-based motion vector prediction (HMVP) candidate list for a current block, the HMVP list comprising multiple HMVP candidates. The device may determine a template matching cost of an HMVP candidate from the multiple HMVP candidates. The device may reorder the HMVP candidate list based on the template matching cost of the HMVP candidate. The device may decode the current block based on the reordered HMVP candidate list.

Abstract: A video codec can involve determining a motion compensation mode associated with encoding a first block of picture information, the motion compensation mode including a sub-block based motion compensation prediction mode or a non-rectangular block partition mode; determining that a second block of picture information spatially neighboring the first block was encoded or decoded based on an illumination compensation; and encoding or decoding the first block based on the motion compensation mode and the illumination compensation.

Abstract: The invention relates to the field of materials based on mineral fibers, in particular mineral wool such as glass wool or rock wool. More specifically, the present invention relates to a method and a device for recycling the water recovered in a fiberizing and shaping method when using a specific acid binder based on monomeric polycarboxylic acid, or a salt of such an acid.

Abstract: An apparatus for encoding or decoding blocks of a current picture encodes sub-blocks of a first block of a current picture. The sub-blocks encoded or decoded based on motion vectors determined according a motion information data associated with the first block. In a second step, a set of second motion information data is determined as a function of the first motion information data. These second motion information data are added to a list of motion information data, that is used to determine a motion information data for further blocks of the current picture to encode or decode.

Abstract: A decoding method is disclosed. A flag is first decoded. The flag indicates whether a current block of a picture is decoded with a tool of a set of tools. The set of tools comprises tools using reconstructed samples of neighboring blocks decoded prior to the current block or using a block of the picture larger than a hardware unit. The flag is only decoded in the case where the current block has a parent hardware unit. A current block is then decoded responsive to the flag.

Abstract: A method for decoding or encoding comprising: determining if an inter prediction mode called weighted prediction is enabled for a current block; and, if weighted prediction is enabled, modifying a part of a reconstruction process of said current block related to the weighted prediction and/or to at least another prediction tool of a first set of prediction tools, the first set comprising a triangle prediction mode, a geometrical prediction mode, a local illumination compensation mode, a combined intra inter prediction mode, and modes in which motion information used for motion compensation may be refined based on an optical flow model.

Abstract: In at least one embodiment, a method and apparatus for encoding/decoding a video is based on a CABAC coding of bins where a high-level constraint on the maximum usage of regular CABAC coding of bins is enforced. In other words, a budget of regular coded bins is allocated over a picture area that is larger than a coding group, thus covering a plurality of coding groups, and which is determined from an average allowed number of regular bins per unit of area.

Abstract: Apparatuses and methods are disclosed for encoding and decoding data, including video blocks. Techniques disclosed include adapting a decoder-side motion vector refinement (DMVR) process to coding tools with an illumination change. For a video block being encoded or decoded, the DMVR process includes determining that at least one coding tool, of the coding tools with the illumination change, is enabled; and performing the DMVR process, where a distortion metric is selected based on the enabled coding tool.

Abstract: A video encoder or decoder processes portions of video with less delay when its processes are parallelized and avoids delays caused by dependence on the completion of prior processes. In one embodiment, a motion vector predictor from a neighboring block of video is used in a subsequent later block of video before it is finished being refined for use in the neighboring block. In another embodiment, information from a neighboring block is confined to include blocks in the same coding tree unit. In another embodiment, a motion vector predictor is checked to see whether it is already in a list of candidates before adding it to the list to expedite the process.

Abstract: Some series of ABT split are normatively forbidden in order to limit the number of allowed series of splits, in a way that refines the trade-offs between the amount of allowed split series and the compression efficiency. In particular, a reduced combinatory in terms of allowed split series leads to reduced encoder-side complexity, in the rate distortion search for the best block partitioning. The normative split restrictions provide that when successively using horizontal or vertical then vertical or horizontal asymmetric splits, the considered succession of two splits leads to isolating the sub-area of the input block that is three-fourths the size of the parent block in width and height. Additional embodiments condition allowed splits on transform size, block size, and temporal layer of the slice and slice type.

Abstract: A video coding system may use different types of templates when using template-based prediction modes such as intra template matching prediction mode. The ‘L-shape’ template conventionally used by template-based coding tools may be split into a horizontal ‘above’ (or ‘upper’) template and a vertical ‘left’ template. This allows the encoder to select the appropriate part of the template that better captures statistical properties of the current block and results into improving the coding performance. The use of the type of template is signaled in the encoded data so that the decoder can use the appropriate template for the reconstruction when using a template-based prediction mode such as intra template matching prediction mode.

Abstract: Systems, methods, and instrumentalities are disclosed for performing motion compensation with long-term history-based motion vector predictor candidate(s). A device configured for performing such motion compensation may include a processor. The processor may be configured to obtain a long-term motion vector predictor candidate. The processor may also be configured to add the long-term motion vector predictor candidate to a history-based motion vector prediction (HMVP) list for a current block. The processor may also be configured to decode the current block using the HMVP list having the long-term motion vector prediction candidate.

Abstract: A video codec can involve encoding and decoding picture information and first and second flags, wherein the encoding or decoding of the picture information is based on a coding mode indicated by the first flag or the second flag, and the first flag indicates a subblock merge mode and the second flag indicates an inter affine prediction mode, and the encoding or decoding of the first flag uses Context-Based Arithmetic Coding (CABAC) based on a first probability model and encoding or decoding of the second flag uses CABAC based on a second probability model.

Abstract: The invention relates to the field of materials based on mineral fibers, in particular mineral wool such as glass wool or rock wool. More specifically, the present invention relates to a method and a device for recycling the water recovered in a fiberizing and shaping method when using a specific acid binder based on monomeric polycarboxylic acid, or a salt of such an acid.

Abstract: A method of predicting or inferring a piece of information for encoding or decoding uses a predictor from a spatial neighbor, or from a reference picture, instead of predicting or inferring the information, such as a flag for a current block, from a motion predictor block. This procedure can be used in several ways, or used in various motion vector prediction modes, such as Frame Rate Up Conversion or various variations of Advanced Motion Prediction. Other embodiments provide other methods and combinations to derive or infer motion information to increase coding efficiency.

Abstract: Systems, methods, and instrumentalities are disclosed for performing intra prediction of a luminance coding block and/or a chrominance coding block and related signaling when neural network-based intra prediction is enabled. For a current coding block, information representative of a neural network-based prediction mode and a block context may be obtained. A neural network-based predictor may be generated for the current coding block based on the block context and the neural network-based prediction mode. A non-neural network-based intra prediction mode that corresponds to the generated neural network-based predictor may be determined. A prediction mode for a neighboring block may be determined based on the non-neural network-based intra prediction mode.

Abstract: Embodiments disclosed herein generally relate to methods and apparatuses for video coding. For example, methods and apparatuses using decoder-side motion vector refinement (DMVR) technique with bi-prediction weighting for video coding are provided. In an example, a method for video coding includes determining a mode with an illumination change, determining that at least one coding tool for a block is enabled, and performing a DMVR process based on the mode with the illumination change and the at least one coding tool for the block being enabled.