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Digital video encoding method
05/21/15 - 20150139295 - A method for encoding a digital video image producing a high resolution is proposed. A source digital video image is segmented into a plurality of video frames and each such frame is segmented into a plurality of blocks composed of pixels. An encoded digital video image is formed from a...

Intra block copy for intra slices in high efficiency video coding (hevc)
05/21/15 - 20150139296 - A method for decoding high efficiency video coding, comprising determining whether a coding unit is within an intra slice or an inter slice, determining whether intra block copy has been enabled, reviewing syntax for said coding unit for an intra block copy flag when the coding unit is within an...

Method and apparatus for entropy coding video and method and apparatus for entropy decoding video
05/21/15 - 20150139297 - Provided are entropy decoding and encoding methods of a video. The entropy decoding method includes obtaining a transformation unit significant coefficient flag indicating whether a non-zero transformation coefficient exists in the transformation unit, from a bitstream, determining a context model for arithmetically decoding the transformation unit significant coefficient flag, based...

Method and apparatus for coding video and method apparatus for decoding video, accompanied with intra prediction
05/21/15 - 20150139298 - A video decoding method involving intra prediction includes: parsing a most probable mode (MPM) flag of a block while parsing symbols of the block of an encoded video from a received bitstream; determining whether a predetermined number of a plurality of candidate intra prediction modes are used to predict an...

Method and apparatus for coding video and method and apparatus for decoding video accompanied with arithmetic coding
05/21/15 - 20150139299 - A method of decoding a video through symbol decoding includes parsing symbols of image blocks from a received bitstream; classifying a current symbol into a prefix bit string and a suffix bit string based on a threshold value determined according to a size of a current block; performing arithmetic decoding...

Method and apparatus for encoding/decoding image
05/21/15 - 20150139300 - A method for decoding an image, according to the present invention, comprises the steps of: deciding a prediction mode that corresponds to a chroma component block; deciding a transform skip mode of the chroma component block from a plurality of transform skip mode candidates, according to the prediction mode that...

Method and apparatus for decoding video according to individual parsing or decoding in data unit level, and method and apparatus for encoding video for individual parsing or decoding in data unit level
05/21/15 - 20150139301 - A video decoding method including: extracting, from a bitstream of an encoded video, at least one of information indicating independent parsing of a data unit and information indicating independent decoding of a data unit; extracting encoded video data and information about a coded depth and an encoding mode according to...

Video coding method and device using high-speed edge detection, and related video decoding method and device
05/14/15 - 20150131713 - A video encoding method and apparatus using fast edge detection for determining a split shape of a picture is disclosed. A split shape of coding units having a tree structure is obtained by replacing a sampling unit having a predetermined size with one of an edge pixel and a normal...

Compression/decompression progressive d'un flux numerique video comprenant au moins une image entrelacee
05/14/15 - 20150131714 - The subject of the present invention pertains to a device (100) for decompressing a digital video stream comprising at least one compressed image (I′), said device comprising: —a means of progressive decompression (M4) configured so as to decode said at least one compressed image (I′), and —a means of inverse...

Image transmission apparatus, image transmission method, and recording medium
05/14/15 - 20150131715 - Convention transmission of streams of moving images disadvantageously has a long stopping time because frame transmission skip and GOP transmission skip are performed in a case where a congestion of a transmission process occurs in a transmission side. An image transmission apparatus which transmits encoded data acquired by encoding an...

Apparatus and method for processing image
05/14/15 - 20150131716 - An image processing device and method for an image processing device to compress, for each line, an image frame formed of a plurality of lines are provided. The method includes predicting an image quality of each line forming a single image frame, independently determining a compression rate of each line...

Method and apparatus for encoding video by using deblocking filtering, and method and apparatus for decoding video by using deblocking filtering
05/14/15 - 20150131717 - A method and apparatus for encoding video by using deblocking filtering, and a method and apparatus for decoding video by using deblocking filtering are provided. The method of encoding video includes: splitting a picture into a maximum coding unit; determining coding units of coded depths and encoding modes for the...

Method and apparatus for encoding video by using deblocking filtering, and method and apparatus for decoding video by using deblocking filtering
05/14/15 - 20150131718 - A method and apparatus for encoding video by using deblocking filtering, and a method and apparatus for decoding video by using deblocking filtering are provided. The method of encoding video includes: splitting a picture into a maximum coding unit; determining coding units of coded depths and encoding modes for the...

Chroma-based video converter
05/07/15 - 20150124863 - This disclosure describes a method and system for encoding an RGB24 video signal (504) having multiple video frames. An RGB video frame is received and is split into red, green, and blue data. The received RGB video frame is converted into a first YUV frame (508-1) having Y data same...

Image decoding method and apparatus using same
05/07/15 - 20150124864 - The present invention relates to an image decoding method and to an apparatus using same. The image decoding method includes the steps of: receiving a bitstream including random access image information; and predicting the random access image and an image following the random access image in terms of a decoding...

Color residual prediction for video coding
05/07/15 - 20150124865 - A method of decoding video data includes decoding a first block of video data to produce a block of reconstructed luma residual values and a block of predicted chroma residual values, wherein the block of video data has one of a 4:2:0 or a 4:2:2 chroma sub-sampling format. The method...

Apparatus and method of efficient sample adaptive offset
05/07/15 - 20150124866 - A method and apparatus for sample adaptive offset (SAO) compensation of reconstructed video data are disclosed. In one embodiment, the relation between the current pixel and said one or more neighboring pixels is stored so that the SAO compensated current pixel can replace the current pixel without buffering the to-be-processed...

Apparatus for coding a bit stream representing a three-dimensional video
05/07/15 - 20150124867 - The disclosure relates to an apparatus for coding a bit stream representing a three-dimensional video comprising a sequence of views, wherein a depth map is associated to each view, the depth map comprising depth information of the view with respect to a position to the camera capturing the view, the...

Moving picture coding/decoding method and apparatus
05/07/15 - 20150124868 - An image decoding apparatus is provided. The image decoding apparatus includes a processor which obtains information about a color representation from a bitstream, obtains a residue, which corresponds to a difference between a current image and a predicted image of the current image, from the bitstream, and reconstructs the current...

Apparatus and method of sample adaptive offset for video coding
05/07/15 - 20150124869 - An apparatus and method for sample adaptive offset (SAO) to restore intensity shift of processed video data are disclosed. In an encoder side, the processed video data corresponding to reconstructed video data, deblocked-reconstructed video data, or adaptive loop filtered and deblocked-reconstructed video data are partitioned into regions smaller than a...

Layered encoding using spatial and temporal analysis
04/30/15 - 20150117515 - In some examples, a layered encoding component and a layered decoding component provide for different ways to encode and decode, respectively, video streams transmitted between devices. For instance, in encoding a video stream, video frames may be analyzed across multiple video frames to determine temporal characteristics, and analyzed spatially within...

Dynamic video encoding based on channel quality
04/30/15 - 20150117516 - Various embodiments are generally directed to techniques to dynamically encode video based on channel quality and received video quality. An apparatus for dynamically encoding video includes a processor component; and a dynamic video encoder for execution by the processor component, the dynamic video encoder comprising a reference map generator to...

Video signal processing method and device
04/30/15 - 20150117517 - The present invention variably adjusts the maximum splitting information of a conversion unit according to the type of prediction unit and the splitting information on a coding unit and selects the optimal splitting information on the conversion unit. The present invention determines the maximum splitting information on the conversion unit...

Method and apparatus for encoding a video stream having a transparency information channel
04/30/15 - 20150117518 - Method for encoding a video stream having a transparency information channel in view of a predetermined target bit rate for said transparency information channel, comprising: tentatively applying a first encoding (130) to said transparency information channel, said first encoding (130) comprising lossless vector graphics encoding; if said first encoding results...

Adaptive inter-color component residual prediction
04/30/15 - 20150117519 - A device for decoding video data includes a memory configured to store video data, and at least one processor. The at least one processor is configured to: determine a first bit-depth of luma residual samples for a block of video data, determine a second bit-depth of predicted chroma residual samples...

Encoding method for distribution of multimedia contents with enforcement of commercial advertisement
04/23/15 - 20150110169 - Methods and systems for encoding multimedia content with enforcement of commercial advertisements are discussed in the disclosure. Some of the methods may require all or part of a commercial advertisement segment to be viewed and/or decoded in order to decode an entertainment segment. In some implementations, the disclosure provides for...

Method and apparatus for simplified depth coding with extended prediction modes
04/23/15 - 20150110170 - A method and apparatus for Simplified Depth Coding (SDC) with extended Intra prediction modes are disclosed. Embodiments of the present invention use an extended Intra prediction mode set including Horizontal mode and Vertical mode. When the Horizontal mode is selected, the prediction samples for the current depth block are derived...

Method for motion estimation and apparatus for processing image
04/23/15 - 20150110171 - Provided are a method for motion estimation and an apparatus for processing an image. The method includes extracting a pattern from any one frame, classifying the extracted pattern as any one of predetermined basic patterns, counting basic patterns of regions included in macroblocks according to types of the basic patterns...

Parallel decoding method for layered video coding
04/23/15 - 20150110172 - Systems, methods, and instrumentalities are disclosed for parallel decoding of a layered video stream. A base layer video stream and an enhancement layer video stream may be received. A picture of the base layer video stream may be decoded via a first processing thread. An inter-layer reference picture associated with...

Adaptive video compression for latency control
04/16/15 - 20150103880 - One embodiment of the present invention sets forth a technique for adaptively compressing video frames. The technique includes encoding a first plurality of video frames based on a first video compression algorithm to generate first encoded video frames and transmitting the first encoded video frames to a client device. The...

Image decoding method and apparatus using same
04/16/15 - 20150103881 - 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...

Method and apparatus for determining reference picture set of image
04/16/15 - 20150103882 - A method of determining a reference picture set (RPS), which is a set of reference pictures used in predictive decoding of a current picture that is to be decoded, is provided. The method includes: obtaining a flag indicating whether the RPS is determined based on picture order count (POC) values...

Method and apparatus for fast intra prediction
04/16/15 - 20150103883 - An intra prediction method includes at least the following steps: performing a distortion estimation to evaluate a distortion value of a specific block under an intra prediction mode and a transform unit size; using the evaluated distortion value to set a distortion value of the specific block under a first...

Signaling for sub-decoded picture buffer (sub-dpb) based dpb operations in video coding
04/16/15 - 20150103884 - A method of decoding video data including receiving an encoded video bitstream that includes a plurality of pictures and storing the plurality of pictures in one or more sub-DPBs. The method further including receiving a respective set of sub-DPB parameters for each respective operation point of the encoded video bitstream....

Real time ip video transmission with high resilience to network errors
04/16/15 - 20150103885 - A method and system related to video transmission to increase resiliency to network errors, such as packet loss. Packet loss can lead to low quality or broken audio, pixilation, image freeze, and other distortions of a video signal. The system and method utilizes packet retransmission and FEC in combination to...

High level syntax for hevc extensions
04/16/15 - 20150103886 - A video coding device may identify a network abstraction layer (NAL) unit. The video coding device may determine whether the NAL unit includes an active parameter set for a current layer. When the NAL unit includes the active parameter set for the current layer, the video coding device may set...

Device and method for scalable coding of video information
04/16/15 - 20150103887 - An apparatus configured to code video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a first video layer and a second video layer. The processor is configured to process a first instance of...

Support of multi-mode extraction for multi-layer video codecs
04/16/15 - 20150103888 - A computing device may obtain, from a first bitstream that includes a coded representation of the video data, a Supplemental Enhancement Information (SEI) message that includes an indication of an extraction mode that was used to produce the first bitstream. If the extraction mode is the first extraction mode, the...

Adaptive filtering based upon boundary strength
04/16/15 - 20150103889 - Adjacent regions are identified in an image. Coding parameters for the adjacent regions are identified. Selective filtering is performed at the region between the identified adjacent regions....

Motion compensated de-interlacing and noise reduction
04/09/15 - 20150098497 - A video processing system for de-interlacing a video signal comprises a motion estimation block, a refinement motion estimation block, and a de-interlacer. The motion estimation block generates integer motion vectors for the video signal. The refinement motion estimation block generates fractional motion vectors as a function of the generated integer...

Apparatus and method for compact bit-plane data compression
04/09/15 - 20150098498 - An encoder includes a plurality of registers and is configured to: sequentially receive an array of coefficients, each of the coefficients being decomposed into a plurality of bits located at a plurality of corresponding bit positions of the coefficient; and concurrently operate on the plurality of bits of each of...

Image processing apparatus, image pickup apparatus, computer, image processing method and computer readable non-transitory medium
04/09/15 - 20150098499 - An image processing apparatus that compresses image data according to a compression parameter, includes: a data acquisition section that acquires information on whether photographing condition data is added to the image data inputted or not and content of the photographing condition data; a compression parameter determination section that determines the...

Method and apparatus of deriving intra prediction mode using most probable mode group
04/09/15 - 20150098500 - Provided is a method that constructs an MPM group including three intra prediction modes, determines the intra prediction mode of the MPM group specified by the prediction mode index as the intra prediction mode of the current prediction unit if the mode group indicator indicates the MPM group, and derives...

Delay tolerant decoder
04/02/15 - 20150092832 - In one implementation, a network device receives a series of video frames spanning a series time period from a network. The time period may be static of a specific duration or identified dynamically based on the timing of the video frames. The network device decodes the series of video frames...

Parallel encoding of bypass binary symbols in cabac encoder
04/02/15 - 20150092833 - A video encoder may include a context-adaptive binary arithmetic coding (CABAC) encode component that converts each syntax element of a representation of a block of pixels to binary code, serializes it, and codes it mathematically with its probability model, after which the resulting bit stream is output. When the probability...

Context re-mapping in cabac encoder
04/02/15 - 20150092834 - A video encoder may include a context-adaptive binary arithmetic coding (CABAC) encode component that converts each syntax element of a representation of a block of pixels to binary code, serializes it, and codes it mathematically, after which the resulting bit stream is output. A lookup table in memory and a...

Methods for comparing a target block to a reference window for motion estimation during video encoding
04/02/15 - 20150092835 - A method for comparing a target block to a reference window in motion estimation calculations, comprises the steps of: determining SAD calculations as a function of the target block and the reference window; reading the target block into registers; reading a segment of the reference window; updating the determined SAD...

Decoding method and device for bit stream supporting plurality of layers
04/02/15 - 20150092836 - The present invention relates to a decoding method for a bit stream that supports a plurality of layers. The decoding method may include receiving information on a set of video parameters that includes information on the plurality of layers, and parsing the set of video parameters to grasp information on...

Inter-view dependency type in mv-hevc
04/02/15 - 20150092837 - A video decoder receives a value for a first syntax element representing whether a dependency type syntax element for a current layer is signaled, wherein the dependency type syntax element identifies a type of dependency of a current layer relative to a reference layer; and in response to the value...

Dynamic adjustment of image compression for high resolution live medical image sharing
04/02/15 - 20150092838 - A video stream of live medical images is generated at a local site having a medical image scanner. A live video stream is transmitted to at least one remote site via a network, which may include wired or wireless Internet connections. Network conditions are monitored during a network session and...

Combined reference picture list construction and mapping
04/02/15 - 20150092839 - The example techniques of this disclosure are directed to default construction techniques for the construction of a combined reference picture list, and default mapping techniques for the combined reference picture list. In some examples, a video coder may construct first and second reference picture lists from frame number values, and...

Method and system for automatically encoding video with uniform throughput
03/26/15 - 20150085915 - A video compression method and system is specialized for uniform throughput video compression. The method/system encodes video sequences with uniform throughput, while reducing computational complexity as much as possible. By this means, it can efficiently decrease the latency incurred in video compression process and is suitable for real time video...

Filtering video data in video coding
03/26/15 - 20150085916 - In an example, a method for filtering pixel data in video coding comprises determining a pixel filtering task from a plurality of pixel filtering tasks for filtering the pixel data, wherein each filtering task of the plurality of pixel filtering tasks is based on an instruction set for a programmable...

Method for storing image data, method for parsing image data, and an apparatus for using the same
03/26/15 - 20150085917 - The present invention relates to a method for storing image data, and a method for parsing image data, and an apparatus for using the same, which method includes the steps of encoding the image data, and storing an NAL (Network Abstraction Layer) unit containing the encoded image data in the...

Image coding device, image coding method, and image coding integrated circuit
03/26/15 - 20150085918 - When compression encoding processing of an image is performed in units of macroblocks using a pipeline structure, an application of a skip mode or the like according to MPEG4AVC to compression encode an encoding target block requires motion vectors and the like of adjacent blocks of the encoding target block....

Method and apparatus for encoding image information, and method and apparatus for decoding image information
03/26/15 - 20150085919 - In an image information encoder (10) supplied with an interlaced image in a 4:2:0 format, a color-difference signal phase correction unit (22) shifts, for motion estimation and compensation, the phase of the color-difference signal in a reference image block adaptively to a selected motion estimate mode and the value mv...

Method and apparatus of temporary image frame compression
03/19/15 - 20150078431 - An image compression method and fast storage device accessing and pixel decompression is achieved by applying variable bit rate to reduce the data amount of each image frame. Several thresholds are predetermined depending on the availability of the bandwidth of the storage device and the image resolution to decide the...

Coding position data for the last non-zero transform coefficient in a coefficient group
03/19/15 - 20150078432 - Methods and devices for video coding are described. When encoding a non-zero coefficient group (CG) prior to the last such group in a group scan ordering within a transform block, data representative of the true (x,y)-position of the last non-zero transform coefficient in a scan ordering within that CG is...

Reducing bandwidth and/or storage of video bitstreams
03/19/15 - 20150078433 - Bandwidth, power and/or storage may be saved when certain pictures of a video bitstream are selectively reduced in size prior to transmission and/or storage in a video decoding process. Any number of criteria may be used in determining which pictures are to be selected for reduction. For example, pictures that...

Multi-description-based video encoding and decoding method, device and system
03/19/15 - 20150078434 - A multi-description-based video encoding and decoding method, device and system, comprising the following steps: separating odd frames from even frames to generate and encode an initial description; utilizing the correlation of macro-block levels between different descriptions to generate and encode the side information of different modes; and transmitting via a...

Method and apparatus for coding of spatial data
03/19/15 - 20150078435 - The invention describes a method for representing geometry information to utilise for scalable coding of piecewise smooth spatial data sets. The method may also be applicable to vector data such as motion, where this data tends to exhibit piecewise smooth characteristics. The hierarchical geometry representation detailed in this invention is...

Image encoding apparatus, image decoding apparatus and image transmission system
03/19/15 - 20150078436 - According to an embodiment, an image encoding apparatus includes a key information generator, a key image generator and an image encoder. The key information generator generates key information. The key image generator generates a key image based on a base image and the key information. The base image includes one...

Image encoding/decoding method and device using coefficients of adaptive interpolation filter
03/19/15 - 20150078437 - An image encoding and decoding method comprising: a coefficient calculator for calculating adaptive interpolation filter coefficient of a current frame; an image encoder for interpolating reference frames using the adaptive interpolation filter coefficient of the current frame and encoding the current frame using the interpolated reference frames; a filter flag...

Enhanced intra prediction mode signaling
03/19/15 - 20150078438 - A method and apparatus for signaling and receiving a video signal for processing is disclosed. Methods for determining a most probable mode for predicting a current prediction block are provided as well as new methods for grouping intra prediction modes into prediction groups. Methods for predicting a prediction block of...

Image processing system, image processing method and program
03/19/15 - 20150078439 - There is provided an image processing system and an image processing method able to suppress block distortion in the case of decoding image data encoded in unit of blocks. A controlling unit selects a filtering content to be applied to the block image data based on the encoding types of...

Performing video encoding mode decision based on motion activity
03/12/15 - 20150071339 - A method and apparatus are described for performing video encoding mode decisions. A down-scaled frame is received that includes a macroblock corresponding to a first subset of macroblocks of a first area in a full-scale frame. A first average motion vector is calculated for the first subset of macroblocks, and...

Sample adaptive filtering with offsets
03/12/15 - 20150071340 - A method, a filtering control device, a computer program and a computer program product for processing a first picture in a sample adaptive filtering procedure are disclosed. The first picture is reconstructed from video data. The filtering control device obtains an offset magnitude from the video data. The offset magnitude...

Arrangements and methods thereof for processing video
03/12/15 - 20150071341 - A method performed by a video encoder for encoding a current picture belonging to a temporal level identified by a temporal_id. The method includes determining a Reference Picture Set (RPS) for the current picture indicating reference pictures that are kept in a decoded picture buffer (DPB) when decoding the current...

Image decoding method, image coding method, image decoding apparatus, image coding apparatus, program, and integrated circuit
03/12/15 - 20150071342 - An image decoding method includes: restoring a selected prediction mode used in prediction at a time of coding; and decoding a current block included in coded image data to generate a decoded block, according to the prediction based on the selected prediction mode. The restoring includes: determining a first estimated...

Image decoding method and image decoding apparatus
03/05/15 - 20150063437 - To provide a video coding technique to reduce the amount of code, a coding apparatus configured to code layers at a plurality of resolutions as a stream determines the coding unit, prediction unit, and frequency transform unit for each layer in compliance with given rules with reference to the coding...

Encoding method and decoding method, and device using same
03/05/15 - 20150063438 - The present invention relates to an encoding method and decoding method, and a device using the same. The encoding method according to the present invention comprises the steps of: specifying an intra prediction mode for a current block; and scanning a residual signal by intra prediction of the current block,...

Encoding apparatus and method
03/05/15 - 20150063439 - An encoding apparatus includes an encoder configured to classify an image into a regions corresponding to display screen sizes, and encode the image. The encoder classifies the regions into tile region. The encoder adds, to encoded data, information for associating information of a tile region to be decoded when decoding...

Constrained intra prediction in video coding
03/05/15 - 20150063440 - A method of encoding video data includes determining that a current block of video data is to be encoded using an intra block copy (BC) mode and constrained intra prediction, determining one or more reference blocks that may be used for encoding the current block using the intra BC mode,...

Picture coding method, picture decoding method, picture coding apparatus, picture decoding apparatus, and program thereof
03/05/15 - 20150063441 - A picture coding method of the present invention codes a picture signal and a ratio of a number of luminance pixels and a number of chrominance pixels for the picture signal, and then one coding method out of at least two coding methods is selected depending on the ratio. Next,...

Picture coding method, picture decoding method, picture coding apparatus, picture decoding apparatus, and program thereof
03/05/15 - 20150063442 - A picture coding method of the present invention codes a picture signal and a ratio of a number of luminance pixels and a number of chrominance pixels for the picture signal, and then one coding method out of at least two coding methods is selected depending on the ratio. Next,...