Abstract: An intra-template (e.g., IntraTMP) fusion mode may be used for video encoding and/or decoding. For a current block, an intra block copy (IBC) merge candidate list may be constructed, and the candidate list may include a candidate corresponding to intra-template fusion. The current block may be encoded and/or decoded based on the intra block copy (IBC) merge candidate list. Based on determining that the candidate corresponding to intra template fusion is used for the current block, the multiple intra-template predictors may be obtained for the current block. For a current block, an intra block copy (IBC) merge candidate list having a candidate corresponding to intra-template fusion mode may obtained. Predicting the current block may be determined based on the candidate corresponding to intra-template fusion mode. A plurality of block vectors may be derived based on the candidate. The current block may be decoded based on the plurality of block vectors.

Abstract: A video coding system for an image of a video representative of a virtual environment comprises an encoder and a decoder that perform a reconstruction of a differential picture based on a decoded picture buffer, wherein the decoded picture buffer comprises a least a picture based on a reference differential picture and on a second picture generated by a three-dimensional renderer based on the information representative of the virtual environment. An encoding method and a decoding method are described and comprise adding the reconstructed differential picture is to the second picture.

Abstract: For encoding and decoding video with intra-template matching prediction, a merge mode may be used. A device for video decoding and/or encoding may identify a first block vector-predicted video block that neighbors a second video block. The first block vector-predicted video block may be associated with intra-template matching prediction (intraTMP). The device may obtain an intra-template parameter for the first block vector-predicted video block. The device may infer a candidate intraTMP parameter for the second video block based on the intra-template parameter for the first block vector-predicted video block. The device may decode and/or encode the second video block based on the candidate intraTMP parameter.

Abstract: A prediction method is disclosed. A block vector is first obtained for a current picture block. It is then determined whether a reference block identified by the block vector is at least partly inside an authorized area, wherein the authorized area is a picture area already processed. The block vector may then be modified responsive to the determining so that the reference block identified by the modified block vector is located at least partly in the authorized area. Finally, the current picture block is predicted from a reference block identified by the modified block vector.

Abstract: A method comprising: decoding (1001) and index of a first motion information predictor in an initial list of motion information predictors for a current block of a picture; decoding (1002) a motion information difference for the current block; and, applying (1003, 1004) a validity checking process comprising determining from a criterion calculated from the motion information difference and the motion information predictors of the initial list that the first motion information predictor and the motion information difference form a valid combination; and, adapting (1005) the initial list of motion information predictors to obtain an adapted list based on a result of the applying of the validity checking process.

Abstract: A method comprising: decoding (1000) a motion information difference for a current block from video data; applying (1001, 1002) a validity checking process comprising determining from a criterion calculated from the motion information difference and motion information predictors of a list of motion information predictors of the current block that a motion information predictor of the list and the motion information difference form an invalid combination; inferring (1004) a value representing the motion information predictor of the list to apply to predict a motion information of the current block responsive to the motion information difference and one motion information predictor of the list form an invalid combination; decoding (1003) the value representing the motion information predictor of the list to apply to predict the motion information of the current block from the video data responsive to the combination of each motion information predictor of the list and the motion information is valid; and, recon

Abstract: A method comprising: obtaining an initial list of motion vector predictors candidates for a current block; obtaining bi-prediction candidates from the initial list, each bi-prediction candidate comprising two motion vectors, a first motion vector of the two motion vectors pointing on a first prediction block in a first reference picture and a second motion vector of the two motion vectors pointing on a second prediction block in a second reference picture; calculating a score for bi-prediction candidates of the initial list; and, obtaining a motion vector predictor for the motion information of the current block based on the calculated scores; wherein each score is value representative of a difference between a first template and a second template, the first template comprising samples of the first prediction block and the second template comprising samples of the second prediction block corresponding spatially to the samples of the first template.

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: Systems, methods, and instrumentalities are disclosed herein for video encoding and/or decoding using intra block copy (IBC) and/or intra template matching prediction (intraTMP) filtering. In examples, a video decoder or video encoder may determine that a current block is coded in IBC mode. Based on the current block being coded in the intra block copy mode, filter parameters may be determined based on template samples of a prediction block and template samples of the current block. Samples of the prediction block may be filtered based on the determined filter parameters. The current block may be encoded or decoded based on the filtered samples.

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: In one implementation, we propose to improve the PLANAR and DC prediction modes by introducing weights, for example, proportional to the sides of the block. The planar mode prediction is obtained by a weighted combination of the horizontal and vertical interpolations. Similarly, the DC value in the DC prediction mode is obtained as a weighted combination of the DC values computed from the top and the left reference arrays of a target block. When the target block is flat because of a high width to height ratio, or tall because of a high height to width ratio, the proposed methods are expected to produce better predictions than the equal weighted versions.

Abstract: Systems, methods, and instrumentalities are disclosed herein for video encoding and/or decoding using padding of non-available intra samples. In examples, a video decoder or video encoder may obtain, based on block-vector-based intra prediction, a prediction block of a current block in a current picture. The encoder or decoder may determine that the prediction block includes previously decoded samples and non-decoded samples. Based on determining that the prediction block includes the previously decoded samples and the non-decoded samples, the non-decoded samples may be padded using neighboring samples. The current block may be encoded or decoded based on the padded samples.

Abstract: In one implementation, the prediction of a block is filtered using a filter learned on a template. To learn the filter, a first template is generated from a set of decoded samples in an area neighboring to the current block, and a second template is generated from a set of predicted samples in the same neighboring area, where the set of predicted samples can be obtained based on the prediction parameters used to predict the current block or from stored prediction samples for neighboring block(s) associated with the template area. The filter parameters are calculated by minimizing a loss function between the set of decoded samples and a set of filtered predicted samples. The filter can be a convolutional 7-tap filter, a convolution 5-tap filter, or a piecewise linear function.

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: 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.