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Pulse Or Digital Communications > Bandwidth Reduction Or Expansion > Television Or Motion Video Signal > Adaptive

Adaptive

Adaptive patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

09/18/14 - 20140269896 - Multi-frame compression
A system and method for compressing data is provided. An embodiment comprises building an adaptive global codebook for each scene in a sequence of video frames. Each frame in the sequence of frames is encoded based on a different encoding order that facilitates an efficient codebook update. Context models for...

09/18/14 - 20140269897 - Adaptive sampling filter process for scalable video coding
A sampling filter process is provided for scalable video coding. The process provides for re-sampling using video data obtained from an encoder or decoder process of a base layer (BL) in a multi-layer system using adaptive phase shifting to improve quality. Examples of a multi-layer encoder or decoder process are...

09/18/14 - 20140269898 - Simplifications on disparity vector derivation and motion vector prediction in 3d video coding
A video coder can be configured to perform texture first coding for a first texture view, a first depth view, a second texture view, and a second depth view; for a macroblock of the second texture view, locate a depth block of the first depth view that corresponds to the...

09/18/14 - 20140269899 - Image coding method and device for buffer management of decoder, and image decoding method and device
Provided are methods and apparatuses for encoding and decoding an image. The 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...

09/18/14 - 20140269900 - Encoding and decoding an image or image sequence divided into pixel blocks
A method and apparatus are provided for coding an image or a sequence of images, generating a data stream including data representative of pixel groups, referred to as blocks, in one of the images. The method includes: grouping blocks in a cluster of blocks according to the proximity of their...

09/11/14 - 20140254657 - Key frame aligned transcoding using statistics file
Systems and methods are provided for transcoding a set of key frame aligned output files from a source file. A statistics file is generated while transcoding a first output file of the set. Subsequent output files having the same frame size but different bitrates of the set may be created...

09/11/14 - 20140254658 - Key frame aligned transcoding using key frame list file
Systems and methods are provided for transcoding a set of key frame aligned output files from a source file. A key frame list file is generated while transcoding a first output file of the set. Subsequent output files of the set may be created non-sequentially and in parallel using the...

09/11/14 - 20140254659 - Video coding method using at least evaluated visual quality and related video coding apparatus
One exemplary video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for deciding a target configuration of at least one of a coding...

09/11/14 - 20140254660 - Video encoder, method of detecting scene change and method of controlling video encoder
A video encoder is configured to encode video data in units of macroblocks based on a group of pictures (GOP), the GOP being determined by assigning intra pictures and inter pictures, each intra picture being encoded without reference to other pictures, and each inter picture being encoded with reference to...

09/04/14 - 20140247864 - Optimized content delivery
Data (e.g., images, video, data fields, character strings, logos, etc.) may be analyzed to identify common elements and differentiating elements, and the elements may be respectively transmitted using different streams. For example, if two devices are receiving two video images that are nearly the same, a first data stream comprising...

09/04/14 - 20140247865 - Video encoding method and apparatus, video decoding method and apparatus, and program therefor
A generated bit amount of filter coefficients of an adaptive interpolation filter is reduced. A video encoding apparatus using motion compensation includes: a motion detection unit which performs motion search to acquire a motion vector; an interpolation filter coefficient deriving unit which calculates interpolation filter coefficients used for interpolation of...

09/04/14 - 20140247866 - Method for encoding image, method for decoding image, image encoder, and image decoder
The present invention relates to a technique for encoding and decoding an image, and a method for encoding the image, according to the present invention, comprises the steps of: performing a prediction with respect to a current block; and transforming a residual which is generated by the prediction, wherein in...

08/28/14 - 20140241415 - Adaptive streaming techniques
Systems and methods are presented for minimizing the suddenness and immediacy of changes to the video quality perceived by users due to bandwidth fluctuations and transitions between different bitrate streams. A method may include identifying an upcoming bitrate change in a bitstream and a nearest scene cut boundary from sync...

08/28/14 - 20140241416 - Adaptive filter for video signal processing for decoder that selects rate of switching between 2d and 3d filters for separation of chroma and luma signals
An adaptive temporal motion filter for a video decoder system operates in an infinite impulse response (IIR), a max or a bypass mode. The adaptive temporal motion filter includes an adaptive time constant control module and a filter gain module. A gain factor of the filter gain module is varied...

08/28/14 - 20140241417 - Offset type and coefficients signaling method for sample adaptive offset
This disclosure describes techniques for performing sample adaptive offset signaling and coding in a video coding process. Techniques of the disclosure include both a merge-based and prediction-based signaling process for sample adaptive offset information (i.e., offset values and offset type). The techniques includes determining offset information for a current partition,...

08/28/14 - 20140241418 - Inter-layer prediction between layers of different dynamic sample value range
The ratio between coding quality on the one hand and coding rate on the other hand is increased. To this end, a global predictor and a local predictor are used in combination. The global predictor derives a global tone-mapping function based on a statistical analysis of pairs of values of...

08/21/14 - 20140233630 - Apparatus and method for adaptive layer selection and server having the same
An apparatus and method for adaptive layer selection and a server having the same are provided. The adaptive layer selecting apparatus includes a monitoring unit monitoring a connection state of at least one channel connected through a communication network, a channel managing unit detecting available channels to be used for...

08/21/14 - 20140233631 - Adaptive coding of a prediction error in hybrid video coding
The present invention relates to a method for coding a video signal using hybrid coding, comprising: reducing temporal redundancy by block based motion compensated prediction in order to establish a prediction error signal, deciding whether to transform the prediction error signal into the frequency domain, or to maintain the prediction...

08/21/14 - 20140233632 - Adaptive coding of a prediction error in hybrid video coding
The present invention relates to a method for coding a video signal using hybrid coding, comprising: reducing temporal redundancy by block based motion compensated prediction in order to establish a prediction error signal, deciding whether to transform the prediction error signal into the frequency domain, or to maintain the prediction...

08/21/14 - 20140233633 - Method, device, and system for multiplexing of video streams
A method of reproducing at least two digital video sequences. The method includes multiplexing a first digital video sequence with a second digital video sequence, pictures of the second digital video sequence are included in advance in a video stream and are associated with timing information such that a receiver...

08/21/14 - 20140233634 - Method and device for encoding and decoding video
A method and apparatus for encoding and decoding a video are provided. The method of encoding the video includes: determining whether a unidirectional motion estimation mode and a bidirectional motion estimation mode are to be used based on a size of a current prediction unit to be encoded, performing the...

08/14/14 - 20140226711 - System and method for self-adaptive streaming of multimedia content
The embodiment provides a method for transmitting optimal video over a network channel. The method includes coding a video into a plurality of frames, estimating bandwidth associated with the network channel, and determining whether the estimated bandwidth associated with the network channel reaches a bandwidth threshold. Further, the method includes...

08/14/14 - 20140226712 - Image processing device and method
The present technique relates to an image processing device and method capable of performing an encoding process or a decoding process on an image at high speed. Similarly, arithmetic coding parameters arranged together in the syntax are subjected to a variable length (fixed length) decoding process together. Similarly, arithmetic coding...

08/14/14 - 20140226713 - System and method for selecting a video encoding format based on feedback data
A computer-implemented system and method for performing video compression are described. For example, a method according to one embodiment comprises: encoding a plurality of video frames or portions thereof according to a first encoding format; transmitting the plurality of encoded video frames or portions to a client device; receiving feedback...

08/07/14 - 20140219330 - Method and system for encoding collections of images and videos
An input segment of an input video is encoded by first extracting and storing, for each segment of previously encoded videos, a set of reference features. The set of input features are matched with each set of the reference features to produce a set of scores. The reference segments having...

08/07/14 - 20140219331 - Apparatuses and methods for performing joint rate-distortion optimization of prediction mode
Examples of apparatuses and methods for performing a joint RD optimization operation are described herein. A method may include successively encoding a macroblock using a plurality of coding modes. The method may further include determining a corresponding rate-distortion cost to encode the macroblock based on a corresponding coding mode of...

08/07/14 - 20140219332 - Virtual field buffer based decoding
Aspects of virtual field buffer based decoding are described. In one embodiment, a current picture field is read from a coded picture buffer comprising coded pictures of video, for example. The current picture may be associated with a top or bottom field polarity. According to decoding and picture output orders,...

08/07/14 - 20140219333 - Adaptive filtering for scalable video coding
In a scalable video codec, an adaptive Wiener filter with offset aims to minimize the differences between two input pictures or picture regions, and the filter coefficients need to be transmitted to decoder site....

08/07/14 - 20140219334 - Image decoding apparatus
Therefore, by causing the first group to include modes having a high possibility of being equal to the prediction mode of the current block and determining the intra prediction mode group indicator and the prediction mode index, it is possible to reduce an amount of information of the intra prediction...

08/07/14 - 20140219335 - Method and apparatus for entropy encoding using hierarchical data unit, and method and apparatus for decoding
Provided are video encoding and decoding methods and apparatuses. The video encoding method includes: encoding a video based on data units having a hierarchical structure; determining a context model used for entropy encoding a syntax element of a data unit based on at least one piece of additional information of...

08/07/14 - 20140219336 - Method and apparatus for intra prediction
Disclosed herein are a method and apparatus for filtering a reference pixel. A method of smoothing a reference pixel may include determining whether or not to perform smoothing on a reference pixel based on the size of a transform block and information about an intra-prediction mode for the transform block...

08/07/14 - 20140219337 - Method for encoding and decoding images based on constrained offset compensation and loop filter, and apparatus therefor
Provided are a method and apparatus for encoding and decoding images based on constrained offset compensation and a loop filter. The image decoding apparatus: receives, from an encoder, a first indicator indicating whether a sequence, a picture, a frame, a slice, a coding unit (CU), a prediction unit (PU), and/or...

08/07/14 - 20140219338 - Moving picture encoding method, moving picture encoding apparatus, moving picture decoding method, and moving picture decoding apparatus
Provided is a moving picture encoding apparatus and a moving picture decoding apparatus which make it possible to increase decoding efficiency. A spatially scalable-multiview moving picture encoding apparatus includes: a base layer encoder which encodes a base layer; an enhancement layer encoder which performs spatially scalable encoding on an enhancement...

07/31/14 - 20140211841 - Extension data handling
A length indicator (23) associated with an encoded representation (20) of a slice (3) is parsed. The length indicator (23) is indicative of a length of an extension field (24) present in a slice header (21) of the encoded representation (20). A decoder (40) can then determine to ignore, during...

07/31/14 - 20140211842 - Adapting robustness in video coding
An input receives a video signal comprising a plurality of frames, each comprising a plurality of image portions. Each of the image portions is encoded by an encoder, to generate an encoded signal. An adaptation module selects a respective encoding mode used to encode each of the image portions. The...

07/31/14 - 20140211843 - Moving image encoding device and moving image encoding method
According to one embodiment, a moving picture coding apparatus and a moving picture coding method capable of further improving coding efficiency, the moving picture coding apparatus comprises a controller. The controller performs control such that coded data are created using an inter-prediction structure in which the maximum number of consecutive...

07/31/14 - 20140211844 - Moving image encoding device and moving image encoding method
According to one embodiment, a moving image encoding device and a moving image encoding method improving encoding efficiency are provided. In the embodiment, moving image encoding device includes controller. The controller generates a B picture by using a GOP structure enabling reference from a reference B picture in a GOP...

07/31/14 - 20140211845 - Moving image encoding apparatus
A moving image encoding apparatus configured to use an image one frame before a target image for encoding to calculate a filtering coefficient for each intra prediction mode of a decoded image from the decoded image and the original image, extracts a filtering coefficient to perform a filtering process to...

07/31/14 - 20140211846 - Cross-channel residual prediction
Systems, apparatus and methods are described including determining a prediction residual for a channel of video data; and determining, using the first channel's prediction residual, a prediction residual for a second channel of the video data. Further, a prediction residual for a third channel of the video data may be...

07/31/14 - 20140211847 - Video encoding system and method
A video processing method for a video image consisting of a plurality of units includes: generating a plurality of information types of at least a first unit and a second unit neighbouring the first unit; and storing the plurality of information types of the first unit in a first continuous...

07/31/14 - 20140211848 - Method and apparatus for reduction of deblocking filter
A method and apparatus for deblocking of reconstructed video are disclosed. In one embodiment, the method divides a block boundary into two sub-boundaries and separates lines or column across the sub-boundaries into two groups. The deblocking filter decision for each group is determined based on the lines or columns in...

07/24/14 - 20140204995 - Efficient region of interest detection
An apparatus having a circuit is disclosed. The circuit may be configured to (i) calculate a plurality of complexity values while compressing a current picture in a video signal. Each complexity value generally characterizes how a corresponding one of a plurality of blocks in the current picture was compressed. The...

07/24/14 - 20140204996 - Adaptive noise reduction engine for streaming video
An adaptive video noise reduction (AVNR) engine reduces noise in streaming video. The engine reads embedded information in the streaming video describing attributes of the video, such as bit rate, frame rate, resolution, content type and quality of the streaming video. The information may be included in a manifest of...

07/24/14 - 20140204997 - Soft demapper, calculating system, and method for calibrating soft data of multimedia data stream
By determining a scaling factor for scaling signals according to a signal having low bit error rates, and by adjusting soft data using the scaling factor, when soft data are simulated using the Gaussian Model having obvious errors with respect to reality, impacts of signals having low bit error rates...

07/24/14 - 20140204998 - Image encoding/decoding method and apparatus for same
According to the present invention, an image encoding/decoding method comprises the steps of: performing an intra prediction on a current block so as to generate a prediction block; performing filtering on a filtering target pixel in the prediction block on the basis of the intra prediction mode of the current...

07/24/14 - 20140204999 - Method and apparatus for encoding/decoding image information
The present invention relates to a deblocking filtering method, a method for inducing bs (boundary strength) therefor, and a method and an apparatus for encoding/decoding using the same. The method for inducing the bS of the present invention comprises the steps of: inducing a boundary of a deblocking filtering unit...

07/24/14 - 20140205000 - Image encoding/decoding method and apparatus for same
According to the present invention, an image encoding/decoding method comprises the steps of: performing an intra prediction on a current block so as to generate a prediction block; performing filtering on a filtering target pixel in the prediction block on the basis of the intra prediction mode of the current...

07/24/14 - 20140205001 - Adaptive weighting of reference pictures in video encoding
A video decoder, encoder, and corresponding methods for processing video data for an image block and a particular reference picture index to predict the image block are disclosed that utilize adaptive weighting of reference pictures to enhance video compression, where a decoder includes a reference picture weighting factor unit for...

07/17/14 - 20140198839 - Low latency sub-frame level video decoding
A method includes transmitting encoded video data related to video frames of a video stream from a source to a client device through a network such that a packet of the encoded video data is limited to including data associated with one portion of a video frame. The video frame...

07/17/14 - 20140198840 - Method and apparatus for adaptive loop filter with constrained filter coefficients
Methods and apparatuses for processing of coded video using ALF are disclosed. Embodiments according to the present invention apply ALF with constrained data range to reconstructed video data. The ALF parameters comprise a center coefficient, one or more non-center coefficients, and an offset term. As an example, the constrained data...

07/10/14 - 20140192858 - Jctvc-l0226: vps and vps_extension updates
The VPS and vps_extension( ) syntax structures are updated with some cleanups for the HEVC Extensions in scalable video coding, multi-view coding and 3D video coding areas. In addition, four options of adding syntaxes to support mixed video sequences in various layers for the VPS extension are described....

07/10/14 - 20140192859 - Jctvc-l0227: vps_extension with updates of profile-tier-level syntax structure
The profile_tier_level syntax structure of a High Efficiency Video Coding (HEVC) syntax structure is updated to provide more flexibility for use in the vps_extension( ) syntax structure for use in each layer or operating point. A new flag ‘LevelPresentFlag’ is added in profile_tier_level syntax structure to support the variance of...

07/10/14 - 20140192860 - Method, device, computer program, and information storage means for encoding or decoding a scalable video sequence
wherein at least one flag in the bit-stream indicates that part or all of the second SAO parameters are inferred from the first SAO parameters...

07/10/14 - 20140192861 - Method and apparatus for reordered binarization of syntax elements in cabac
A method and apparatus of context-based adaptive binary arithmetic encoding/decoding for syntax elements of one or more blocks are disclosed. According to one embodiment of the present invention, the binarization results of the x and y positions of the last significant coefficient of a transform unit are reordered by collecting...