Abstract: The present invention relates to a scalable video coding method and apparatus using inter prediction mode. A decoding method includes determining motion information prediction mode on a target decoding block of an enhancement layer, predicting motion information on the target decoding block of the enhancement layer using motion information on the neighboring blocks of the enhancement layer, if the determined motion information prediction mode is a first mode, and predicting the motion information on the target decoding block of the enhancement layer using motion information on a corresponding block of a reference layer, if the determined motion information prediction mode is a second mode.

Abstract: A scene graph suitable for defining stereoscopic graphical objects, a method and an apparatus for creating such scene graphs, and a method and an apparatus for rendering graphical objects based on such scene graphs are described. The scene graph describes a spatial or a temporal arrangement of the stereoscopic graphical object and comprises information about image data for a base image for the stereoscopic graphical object, image data for a dependent image for the graphical object, and the spatial or the temporal arrangement of the base image and the dependent image. For a 3D rendering mode the graphical object is composed of the base image and the dependent image. For a 2D rendering mode the graphical object is composed of the base image only.

Abstract: A method comprising: encoding a first picture on a first scalability layer and on a lowest temporal sub-layer; encoding a second picture on a second scalability layer and on the lowest temporal sub-layer, wherein the first picture and the second picture represent the same time instant, encoding one or more first syntax elements, associated with the first picture, with a value indicating that a picture type of the first picture is other than a step-wise temporal sub-layer access (STSA) picture; encoding one or more second syntax elements, associated with the second picture, with a value indicating that a picture type of the second picture is a step-wise temporal sub-layer access picture; and encoding at least a third picture on a second scalability layer and on a temporal sub-layer higher than the lowest temporal sub-layer.

Abstract: An encoding apparatus of a video coding system includes a setting unit and an encoder which is connected to the setting unit. The setting unit sets video usability information (VUI) parameter including field_seq_flag. The field_seq_flag indicates whether a video stream includes a video representing field and common to all occurrences of a temporal layer. The encoder encodes the video stream based on the temporal layer to generate an encoding bitstream including the VUI set by the setting unit.

Abstract: An encoder for receiving a video frame and performing encoding processes to generate an encoded bitstream includes: a fidelity enhancement block, for performing a fidelity enhancement technique on processed data utilizing a partition method, and generating fidelity enhancement information comprising at least one parameter associated with a partition structure, wherein the fidelity enhancement technique comprises applying discrepancy modeling based on DC offset; and an entropy coding block, coupled to the fidelity enhancement block, for encoding the fidelity enhancement information, and embedding the encoded fidelity enhancement information into the encoded bitstream.

Abstract: Systems and methods in accordance with embodiments of this invention provide for encoding and playing back video at different frame rates using enhancement layers. In a number of embodiments, video is encoded using temporal scalability involving the creation of a base layer at a first frame rate and an enhancement layer including additional frames enabling playback at a second higher frame rate. The second higher frame rate can also be referred to as an enhanced frame rate. In a number of embodiments, the base and enhancement layers are stored in one or more container files that contain metadata describing the enhancement layer. Based on the capabilities of a playback device, it can select the particular frame rate at which to playback encoded video.

Abstract: A context switching method for video encoders that enables higher priority video streams to interrupt lower priority video streams. A high priority frame may be received for processing while another frame is being processed. The pipeline may be signaled to perform a context stop for the current frame. The pipeline stops processing the current frame at an appropriate place, and propagates the stop through the stages of the pipeline and to a transcoder through DMA. The stopping location is recorded. The video encoder may then process the higher-priority frame. When done, a context restart is performed and the pipeline resumes processing the lower-priority frame beginning at the recorded location. The transcoder may process data for the interrupted frame while the higher-priority frame is being processed in the pipeline, and similarly the pipeline may begin processing the lower-priority frame after the context restart while the transcoder completes processing the higher-priority frame.

Abstract: A video decoding method includes obtaining a motion vector of a current block belonging to a first picture from a bitstream, performed by a first decoding unit; determining whether a reference block indicated by the motion vector is decoded, performed by the first decoding unit; and decoding the current block, based on whether the reference block is decoded. The reference block is included in a second picture decoded by a second decoding unit. The first picture and the second picture are decoded in parallel.

Abstract: A signaling of the layer ID for packets of a multi-layered video signal is described. In particular, an efficient way of signaling this layer association is achieved, with maintaining the backward compatibility with codecs according to which a certain value of the base layer-ID field is restricted to be non-extendable such as base layer-ID value 0 in the base layer-ID field. Instead of circumventing this restriction specifically with respect to this non-extendable base layer-ID value, the layer-ID of portions of the multi-layer data stream is signaled in an extendable manner by sub-dividing the base layer-ID field into a first sub-field and a second sub-field: whenever the first sub-field of the base layer-ID field fulfills a predetermined criterion, an extension layer-ID field is provided, and if the first sub-field of the base layer-ID field does not fulfill the predetermined criterion, the extension layer-ID field is omitted.

Abstract: Image data of each of pictures which constitute dynamic image data is classified into a plurality of layers, image data of each of the classified layers is encoded, and a video stream having the encoded image data of the pictures of each of the layers is generated. A container in a predetermined format which includes the generated video stream is transmitted. Decoding timing information, which has been set so that a higher layer has a shorter decoding time interval of the encoded image data of each of the pictures, is added to the encoded image data of the pictures of each of the layers. The operations enable a reception side to perform a favorable decoding process commensurate with its decoding capability.

Abstract: A method for decoding an image according to the present invention comprises the steps of: receiving and parsing a parameter set including indication information which indicates the presence of withheld information to be used in the future; receiving and parsing a slide header including the withheld information, when the indication information indicates the presence of the withheld information; and decoding the image according to semantics and a value corresponding to the withheld information. As a result, provided are a method and an apparatus for describing an additional extension information indication in a bitstream supporting a hierarchical image.

Abstract: According to an embodiment, an encoding device includes a storage controller, a difference generator, and a communication controller. The storage controller is configured to store a base stream in a storage. The base stream serves as basis for encoding and decoding and is shared with a decoding device. The difference generator is configured to generate a difference bit stream that represents difference between an input bit stream that has been input and the base stream. The communication controller is configured to control a communicating unit to transmit the difference bit stream.

Abstract: An image coding method includes: coding (i) coefficient information, (ii) a first flag indicating whether to quantize one or more blocks using quantization, (iii) a second flag indicating whether the plurality of quantization matrices are included in a sequence parameter set, and (iv) a third flag indicating whether the plurality of quantization matrices are included in a picture parameter set; and quantizing the plurality of coefficients, wherein when the one or more blocks are quantized using a plurality of default matrices, the following are coded in the coding: (i) the first flag indicating that the one or more blocks are quantized using the plurality of quantization matrices, (ii) the second flag indicating that the plurality of quantization matrices are not included in the sequence parameter set, and (iii) the third flag indicating that the plurality of quantization matrices are not included in the picture parameter set.

Abstract: Methods for video display using a computing system. The computing system includes a main computing module and an ancillary computing module. The main computing module may transmit a synchronization control information block to the ancillary computing module. The synchronization control information block includes a frame number of a current frame and the reference time associated with the main computing module. The ancillary computing module receives the synchronization control information block and selects a frame pack having the same frame number contained in the synchronization control information block as the current frame. The ancillary computing module may obtain the reference time of the current frame based on a local time of the ancillary computing module. The main computing module and the ancillary computing module may decode one or more parts of the frame, respectively. Further, the decoded parts of the frame may be combined and displayed.

Abstract: A method and related apparatus, the method comprising receiving a bitstream comprising picture data units on one or more scalability layers; determining a first set of layers that are decoded from the bitstream; decoding, from or along the bitstream, a first indication indicative of an end of a coded picture, wherein the first indication is associated with a first layer identifier; decoding, from or along the bitstream, a second indication indicative of a second set of layers that are not present in an access unit; and determining an end of the access unit, when the first layer identifier is the greatest among the first set of layers, or all layers with a layer identifier greater than the first identifier among the first set of layers are included in the second set of layers.

Abstract: Motion field estimation is used to predict motion within video blocks. A current block of a current frame is identified as a projection of a first reference block of a first reference frame onto the current frame. The projection uses a first motion vector of the reference block with respect to a second reference frame. A temporal motion vector candidate is determined for the current block by projecting the current block onto a second reference frame. The temporal motion vector candidate identifies a second reference block. A motion vector selected from a motion vector candidate list is used to generate a prediction block using the selected motion vector. The current block is coded using the prediction block.

Abstract: A purpose of the present invention is to easily select an appropriate processing format, an appropriate parameter, or the like by predicting a process result that varies according to content of data before executing the process. According to the present invention, provided is an information processing device including: a feature amount extraction unit configured to extract a feature amount of data serving as a target of a process; a feature amount matching unit configured to match the feature amount with one or more reference feature amounts associated with a prediction result of the process in a database; and a result prediction unit configured to predict a result obtained in a case where the process is executed for the data, on the basis of a result of the matching.

Abstract: An encoding device includes a processor configured to execute a process. The process includes: first calculating, based on a first system rate for encoding data and transmitting the encoded data to a terminal and a second system rate representing a rate for reproducing the data at the terminal, a decoder storage time during which the encoded data received by the terminal is stored; and adding information of the decoder storage time to the encoded data and transmitting the encoded data added with the information to the terminal.

Abstract: Image data is obtained. The image data is divided into a plurality of segments. A frequency spectrum is generated for each segment. One or more dominant signals corresponding to the image data are estimated for each segment based on the associated frequency spectrum. A coherent enhancement process is applied to the one or more dominant signals in each segment by performing sequential scanning in one or more directions. For each of the one or more dominant signals, the data resulting from the coherent enhancement of the signal are stored into separate image buffers, wherein an image buffer is configured to store data resulting from the coherent enhancement of the associated dominant signal across multiple segments. Each of the one or more dominant signals are reconstructed based on aggregating the data stored in a corresponding image buffer.

Abstract: A scanline driver chip includes: a chip selection de-serializer configured to provide an output enable signal based on an enable signal, a clock signal, and serial chip selection data, the serial chip selection data being received in serial order; an address data de-serializer configured to provide parallel address data based on the enable signal, the clock signal, the output enable signal, and serial address data, the serial address data being received in serial order; and a decoder-level shifter configured to provide a scanline enable signal based on the parallel address data. A display device includes: a controller configured to provide an enable signal, a clock signal, serial chip selection data, and serial address data; a plurality of the scanline driver chips each configured to provide a scanline enable signal; and a pixel array configured to be driven based on the scanline enable signal.

Abstract: A system (and corresponding method and devices) for encoding an ungrouped signal into a plurality of grouped signals, wherein the ungrouped signal comprises at least a video service.

Abstract: Techniques and tools for performing fading compensation in video processing applications are described. For example, during encoding, a video encoder performs fading compensation using fading parameters comprising a scaling parameter and a shifting parameter on one or more reference images. During decoding, a video decoder performs corresponding fading compensation on the one or more reference images.

Abstract: A method for transmitting media data in a multimedia system is provided. The method includes determining a transport packet header format and a transmission structure that are to be generated based on a transmission requirement of a multimedia service configured by the media data, generating a basic transmission unit of the media data based on the determined transport packet header format and the determined transmission structure, packetizing the media data into at least a packet based on the generated basic transmission unit, and transmitting the packetized media data.

Abstract: According to an embodiment, a decoding device includes, an acquiring unit configured to acquire first format information, encoded data, and first filter information, the first format information indicating a resolution of a color-difference component of the encoded data; a decoding unit configured to decode the encoded data to obtain a decoded image; and a converting unit configured to convert a color-difference format of the decoded image represented by a first color-difference format by using a filter identified by the filter information.

Abstract: Techniques and systems are provided for encoding and decoding video data. For example, a method of decoding video data includes obtaining an encoded video bitstream comprising one or more layer sets and one or more additional layer sets. The encoded video bitstream includes a video parameter set defining parameters of the encoded video bitstream. The one or more layer sets are defined in a base part of the video parameter set, and the one or more additional layer sets are defined in an extension part of the video parameter set. The method further includes decoding one or more syntax elements from the video parameter set. The one or more syntax elements include rate information for the one or more layer sets defined in the base part of the video parameter set and for the one or more additional layer sets defined in the extension part of the video parameter set.

Abstract: A method of encoding video including: writing a plurality of predetermined buffer descriptions into a sequence parameter set of a coded video bitstream; writing a plurality of updating parameters into a slice header of the coded video bitstream for selecting and modifying one buffer description out of the plurality of buffer descriptions; and encoding a slice into the coded video bitstream using the slice header and the modified buffer description.

Abstract: A method for depicting a batter count box on a display is provided. The method includes the steps of employing a plurality of pixelated sections, with the plurality of pixelated sections including a pixelated balls section and a pixelated strikes section within the batter count box.

Abstract: Systems and methods for Light Emitting Diode (LED) backlight control for reproduction of High Dynamic Range (HDR) content using Standard Dynamic Range (SDR) Liquid Crystal Display (LCD) panels. In an illustrative, non-limiting embodiment, an LCD display may include: an SDR-LCD panel and a controller coupled to the SDR-LCD panel, the controller configured to: identify video that includes HDR content using a luminance histogram, and to display the HDR content by increasing a luminance of a Light-Emitting Diode (LED) backlight disposed within the LCD display.

Abstract: The present invention relates to a device for transmitting and receiving a signal and a method for transmitting and receiving a signal. One embodiment of the present invention provides a method for transmitting a signal, comprising the steps of: encoding video source data and outputting video data including a supplemental enhancement information (SEI) message having group of pictures (GOP) metadata; and transmitting the video data. According to the embodiment of the present invention, a trick play for an encoded stream can be more efficiently provided.

Abstract: An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.

Abstract: There is provided an image coding apparatus including: circuitry configured to set a correspondence relationship between resolution information and an enhancement layer, in a case where the number of the layers is greater than the number of multiple candidates for the resolution information on a layer of an image; and code the image and generate a bitstream including information relating to the set correspondence relationship.

Abstract: A process for improved upscaling and picture optimization in which the original content is analyzed and metadata for the upscaling and optimization of the content is created. The metadata is then provided along with the content to a playback device. The playback device can then use the metadata to improve the upscaling and display of the content.

Abstract: A system for decoding a video bitstream includes receiving a frame of the video that includes at least one slice and at least one tile and where each of the at least one slice and the at least one tile are not all aligned with one another.

Abstract: Provided are methods and apparatuses for encoding and decoding an image. Method of encoding includes: determining a maximum size of a buffer to decode each image frame by a decoder, a number of image frames to be reordered, and latency information of an image frame having a largest difference between an encoding order and a display order from among image frames that form an image sequence, based on an encoding order the image frames that form the image sequence, an encoding order of reference frames referred to by the image frames, a display order of the image frames, and a display order of the reference frames; and adding, to a mandatory sequence parameter set, a first syntax indicating the maximum size of the buffer, a second syntax indicating the number of image frames to be reordered, and a third syntax indicating the latency information.

Abstract: There are disclosed various methods, apparatuses and computer program products for video encoding. In some embodiments pictures are encoded into a bitstream. The bitstream comprises at least two scalability layers and pictures being associated with access units. A first indication and a second indication are encoded into the bitstream. The first indication is configured to indicate an output layer. And the second indication is configured to indicate at least one alternative output layer. A first picture of said at least one alternative output layer is output by a decoding process of the bitstream when no picture of the output layer is in an access unit containing said first picture of said at least one alternative output layer.

Abstract: A method and apparatus of encoding frames with a frame type structure adaptively according to a current encoding status after receiving a request for an IDR frame or receiving an indication of picture data loss are disclosed. If the check result of the current encoding status is true, the second frame type structure is the same as the first frame type structure; and if the check result of the current encoding status is false, the second frame type structure is different from the first frame type structure. Another method and apparatus of encoding frames with a reference frame structure and a frame type structure adaptively according to one or more current encoding statuses after receiving an indication of picture data loss are disclosed. The system may use two different check results to adaptively select the reference frame structure and the frame type structure.

Abstract: A broadcast signal transmitter includes a Forward Error Correction (FEC) encoder configured to perform error correction processing on PLP data; a time interleaver configured to perform time-interleaving on the PLP data; a framer configured to generate a signal frame comprising the PLP data; a frequency interleaver configured to perform frequency-interleaving on the signal frame; and a waveform generator configured to generate a transmission signal comprising the signal frame, wherein the signal frame comprises a preamble, and at least one subframe, wherein the preamble comprises at least one preamble symbol, the at least preamble symbol carries Layer 1 (L1) signaling data for the signal frame, and wherein the first preamble symbol comprises preamble_symbol_number information, and the preamble_symbol_number information indicates a number of preamble symbols other than the first preamble symbol.

Abstract: A reference picture information decoding unit (13) omits decoding of a reference list sorting presence or absence flag and/or a reference list sorting order based on the number of current picture referable pictures.

Abstract: A system for decoding a video bitstream includes receiving a bitstream and a plurality of enhancement bitstreams together with receiving a video parameter set and a video parameter set extension. The system also receives an output layer set change message including information indicating a change in at least one output layer set.

Abstract: Provided are a computer program product, system, and method to allocate a segment of a buffer to each of a plurality of threads to use for writing data. Each of a plurality of threads are assigned to one of a plurality of segments in a buffer, wherein the threads write to the segment to which they are assigned. A free segment list indicates segments which are not assigned to one of the threads. In response to one of the segments assigned to one of the threads becoming a full segment having less than a threshold amount of free space, indicating the full segment assigned to the thread in the free segment list and assigning one of the segments in the free segment list to the thread different from the full segment.

Abstract: A video processing device obtains a data stream comprising a plurality of elementary streams and a High Efficiency Video Coding (HEVC) timing and Hypothetical Reference Decoder (HRD) descriptor. The HEVC timing and HRD descriptor comprises a target schedule index syntax element indicating an index of a delivery schedule. The video processing device may identify, based on a set of parameters, a syntax element in an array of syntax elements in a video parameter set (VPS). The set of parameters may comprise a parameter having a value equal to a value of the target schedule index syntax element. The video processing device may identify, based on an index specified by the identified syntax element, a particular HRD parameters syntax structure in a plurality of HRD parameters syntax structures as being applicable to a particular elementary stream.

Abstract: An information device is provided that includes a communication component and a controller. The communication component communicates with an external device. The controller downloads video data from the external device through the communication component. The controller performs processing for playing the video data. The controller executes an application for playing the downloaded video data. The controller sends a download request for each divided video data, with the divided video data being obtained by dividing up the video data.

Abstract: An image decoding method includes: receiving information on a set of reference pictures for configuring a set of reference pictures of a current picture, wherein the information on the set of reference pictures includes MSB that may calculate the MSB of POC of a long-term reference picture relative to the current picture, and flag information that represents whether there is MSB; and eliciting the set of reference pictures by using received MSB when the flag information is 1, and performing marking on the reference picture, wherein the flag information may be 1 when a temporal sub-layer identifier is 0, and there is at least one POC value for which a remainder obtained by dividing by a maximum value MaxPicOrderCntLsb is the same as LSB of the POC of the long-term reference picture, in a set of POCs of a previous picture including POC values related to the previous picture.

Abstract: An apparatus for coding video information according to certain aspects includes a memory unit configured to store video information associated with a plurality of layers and a processor. The processor is configured to obtain information associated with a current access unit (AU) to be coded, the current AU containing pictures from one or more layers of the plurality of layers. The processor is further configured to determine whether the current AU includes a first layer containing an intra random access point (IRAP) picture. The process is additionally configured to reset a picture order count (POC) of the second layer at the current AU, in response to determining that the current AU includes (1) a first layer that contains an IRAP picture and (2) a second layer containing no picture or containing a discardable picture.

Abstract: In one example, a device for coding video data includes a video coder configured to code motion information for a block of multiview video data, wherein the motion information includes a reference index that identifies a reference picture comprising a source for backward-warping view synthesis prediction (BVSP), perform BVSP on a portion of the reference picture to produce a BVSP reference block, and predict the block using the BVSP reference block.

Abstract: Systems, methods, and instrumentalities are disclosed for increasing the efficiency of inter-layer prediction using an enhanced inter-layer reference (EILR) picture as a reference picture for inter-layer prediction for encoding an enhancement layer. A luminance component and chrominance components of an inter-layer reference (ILR) picture may be enhanced. High frequency information may be obtained by processing an inter-layer motion compensated (ILMC) picture with a high pass filter. Low frequency information may be obtained by processing an ILR picture with a low pass filter. The EILR picture may be generated as a function of the high frequency information, the low frequency information, and/or the ILR picture.

Abstract: Multi-layered frame-compatible video delivery is described. Multi-layered encoding and decoding methods, comprising a base layer and at least one enhancement layer with reference processing, are provided. In addition, multi-layered encoding and decoding methods with inter-layer dependencies are described. Encoding and decoding methods that are capable of frame-compatible 3D video delivery are also described.

Abstract: Blocking artifacts at a block boundary between a block and a neighboring block in a video frame are reduced by calculating an offset based on pixel values of pixels in a line of pixels in the block and based on pixel values of pixels in a corresponding line of pixels in the neighboring block. The offset is added to the pixel value of the pixel closest to the block boundary in the line of pixels and is subtracted from the pixel value of the pixel closest to the block boundary in the corresponding line of pixels. The resulting deblocking filter has good low-pass characteristics and is efficient for reducing blocking artifact.

Abstract: An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.

Abstract: An encoding method includes applying a search range constraint on a search range of a block in a current frame, and encoding the block in the current frame with pixel information in a reference frame according to inter prediction performed based on the search range of the block in the current frame, wherein a resolution of the current frame is different from a resolution of the reference frame.