InterDigital Madison Patent Holdings, SAS

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.

A method and apparatus for performing prediction for encoding or decoding uses intra prediction with sub-partitions. The sub-partitions are oriented either horizontally or vertically and can use wide-angle modes different than that of the video block they originate from. Reference samples for a sub-partition are those of the video block when reference samples for the sub-partition are not available, such as due to direction. In an embodiment, when a sub-partition is square, conventional intra prediction directions are used. Reference samples can be used from a block above and right of the video block or left and below the video block using a mapping along a prediction direction, vertically, or horizontally.

Systems, methods, and instrumentalities are disclosed herein for the field of video compression. In examples, a video coding device may determine that a loop filtering mode is enabled for a picture. For a block in a region, whether neighboring samples are available for loop filtering associated with the block may be determined based on a location of the neighboring samples relative to the region. The block may be decoded based on the determination. In examples, a video encoder may obtain a picture. A loop filtering mode indication may be signaled indicating a loop filtering mode is enabled for the picture. For a block in a region, whether neighboring samples are available for loop filtering associated with the block may be determined based on a location of the neighboring samples relative to the region. The block may be decoded or encoded based on the determination.

Methods and apparatus are provided for unified significance map coding. An apparatus includes a video encoder ( 400 ) for encoding transform coefficients for at least a portion of a picture. The transform coefficients are obtained using a plurality of transforms. One or more context sharing maps are generated for the transform coefficients based on a unified rule. The one or more context sharing maps are for providing at least one context that is shared among at least some of the transform coefficients obtained from at least two different ones of the plurality of transforms.

Systems and methods are disclosed for encoding and for decoding of video data, including predicting a video block of the video data using decoder-side intra mode derivation (DIMD). The disclosed predicting techniques include selecting candidate intra prediction modes based on intra prediction modes used by neighboring video blocks. Techniques disclosed further include determining respective costs of using the selected candidate intra prediction modes to predict samples in a template region adjacent to the video block, deriving an intra prediction mode from the selected candidate intra prediction modes having the lowest cost, and predicting samples in the video block using the derived intra prediction mode.

A method of controlling energy consumed by a multimedia streaming application executed in a multimedia streaming system, the method comprising: receiving ( 358 ), at an end-user device, a message including information representative of energy consumed by at least one node of the multimedia streaming system when applying at least one process on content having a first profile delivered by the multimedia streaming application prior to delivering the content having the first profile to the end-user device; and requesting ( 359 ), at the end-user device, content having a second profile based on the received information representative of the energy consumed by the at least one node.

At least a method and an apparatus are presented for efficiently encoding or decoding video. For example, an intra prediction of an image block and side information are determined using at least one neural network from a context comprising pixels surrounding the image block. The side information allows a decoder to determine the intra prediction and is signaled for the decoding.

Apparatuses and methods are disclosed for encoding and decoding video data. Techniques are disclosed for encoding a video block, including dividing the video block into coding units and grouping the coding units into at least one group, the grouping comprises associating an indication with each of the coding units that indicates whether a shared coding information is to be used in the encoding of the respective coding unit. Techniques are also disclosed for decoding the video block, including obtaining from a bitstream the coding units and their respective indications. For a coding unit that is associated with an indication that the shared coding information is to be used, the decoding is performed based on the shared coding information; otherwise, the decoding is performed based on coding information parsed from the bitstream.

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products, according to a first aspect, for compressing data including encoding at least one information representative of a use, during the compression, of a compressed sparse format. Procedures, methods, architectures, apparatuses, systems, devices, and computer program products, according to a second aspect, for decompressing input data comprising obtaining information representative of zero or non-zero values in at least a part of the input data, and using only the non-zero values of the zero or non-zero values for a further processing of the part of the input data, based on the representative information.

A method of performing intra prediction for encoding or decoding uses multiple layers of reference samples. The layers are formed into reference arrays that are used by a function, such as a weighted combination, to form a final prediction. The prediction is used in encoding or decoding a block of video data. The weights can be determined in a number of ways, and for a given prediction mode, the same weights, or different weights can be used for all pixels in a target block. If the weights are varied, they can depend on the distance of the target pixel from reference arrays.