Abstract: An embodiment of an electronic apparatus may comprise one or more substrates, and a decoder coupled to the one or more substrates, the decoder including logic to perform a first decode stage with a first fixed quantization width, and perform a second decode stage with a second fixed quantization width that is different from the first fixed quantization width. Other embodiments are disclosed and claimed.

Abstract: A method for determining intra-prediction modes for prediction units (PUs) of a largest coding unit (LCU) is provided that includes determining an intra-prediction mode for each child PU of a PU, and selecting an intra-prediction mode for the PU based on the intra-prediction modes determined for the child PUs.

Abstract: Techniques related to quantization parameter estimation for coding intra and scene change frames are discussed. Such techniques include generating features based on an intra or scene change frame including a proportion of smooth blocks and one or both of a measure of block variance and a prediction distortion, and applying a machine learning model to generate an estimated quantization parameter for encoding the intra or scene change frame.

Abstract: An image processing method is provided. The image processing method includes determining an associated unit set of a current coding unit in an image frame, the associated unit set comprising associated coding units, the associated coding units including a target unit in the image frame adjacent to the current coding unit, and at least one coding unit in the image frame having a parent/child relationship with the current coding unit, determining first statistical information based on a prediction mode of each associated coding unit in the associated unit set, obtaining second statistical information of preprocessing image blocks corresponding to the current coding unit, and determining a coding prediction manner of the current coding unit based on the first statistical information and the second statistical information, the coding prediction manner indicating a selected prediction mode and/or a processing order of the prediction mode.

Abstract: A method for derivation of a temporal motion data (TMD) candidate for a prediction unit (PU) in video encoding or video decoding is provided. The derived TMD candidate is for inclusion in an inter-prediction candidate list for the PU. The method includes determining a primary TMD position relative to a co-located PU in a co-located largest coding unit (LCU), wherein the co-located PU is a block in a reference picture having a same size, shape, and coordinates as the PU, and selecting at least some motion data of a secondary TMD position as the TMD candidate when the primary TMD position is in a bottom neighboring LCU or in a bottom right neighboring LCU of the co-located LCU, wherein the secondary TMD position is determined relative to the co-located PU.

Abstract: Methods and system include receiving frames of data generated for an online game, from a server device and encoding the frames using an encoder. Each encoded frame of data is transmitted to a client device over a network, for rendering. A monitoring engine is used to evaluate the data contained in the encoded frame to determine if an amount of data contained in the encoded frame exceeds a maximum data limit specified for a communication channel established between the server device and the client device. When the amount of data contained in the encoded frame exceeds the maximum data limit, a signal is sent to the encoder to dynamically reduce amount of data included in one or more subsequent frames forwarded to the client device for rendering. The adjusting is performed to maintain a frame rate defined for the online game.

Abstract: A control device that controls a bit rate selectable by a client terminal in a video distribution network in which video data is distributed includes a database configured to store distribution information, band allocation information, and distribution system information, the distribution information containing information on video data in a distribution system, the band allocation information containing an allocated band of each session in which the distribution system performs video distribution, and the distribution system information containing a channel band of the distribution system, and a control unit configured to receive a viewing request from the client terminal, calculate an available band in the distribution system with reference to the database, and determine a maximum bit rate selectable by the client terminal based on the available band and one or more bit rates of video data corresponding to the viewing request.

Abstract: A decoder includes circuitry configured to receive a bitstream, determine, for a current block and using the bitstream, that a merge mode is enabled; construct a merge candidate list including adding a global motion vector to the motion vector candidate list; and reconstruct pixel data of the current block and using the motion vector candidate list. Related apparatus, systems, techniques and articles are also described.

Abstract: The present disclosure relates to a method for compensating an image. The method comprises estimating transform coefficients of a frequency component for a first image based on the first image, performing a dot multiplication operation between the estimated transform coefficients and a basis function associated with the frequency component to generate a compensation image, and combining the first image and the compensation image to generate a combined image.

Abstract: An image encoding/decoding method and apparatus are provided. The image decoding method performed by the image decoding apparatus, according to the present disclosure, may comprise the steps of: determining whether a color space transformation is applied to residual samples of a current block; determining quantization parameter of the current block on the basis of whether the color space transformation is applied; and determining a transformation coefficient of the current block on the basis of the quantization parameter. The step of determining the quantization parameter may be performed by limiting the range of an effective value of the quantization parameter such that a value of the quantization parameter has a value less than or equal to a predetermined upper value and greater than or equal to a predetermined lower value.

Abstract: Disclosed is a method and system for transmitting and reproducing a video of a dynamic bitrate using a plurality of channels. A video transmission method may transferring frames of a video to N encoders using an interleaving scheme, N denoting a first natural number greater than or equal to 2, generating N video streams by encoding the frames using the N encoders, each of the N video streams corresponding to one of the N encoders, and transmitting each of the N video streams as an independent stream.

Abstract: A method for determining intra-prediction modes for prediction units (PUs) of a largest coding unit (LCU) is provided that includes determining an intra-prediction mode for each child PU of a PU, and selecting an intra-prediction mode for the PU based on the intra-prediction modes determined for the child PUs.