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US20140161198 MULTI-LAYER APPROACH FOR FRAME-MISSING CONCEALMENT IN A VIDEO DECODER  
The invention relates to a method of concealing errors attributed to missing frames in a Motion Picture Expert Group-2 video stream, including the steps of: receiving a new frame for decoding and...
US20140092997 ERROR RESILIENT TRANSMISSION OF RANDOM ACCESS FRAMES AND GLOBAL CODING PARAMETERS  
Error mitigation techniques are provided for video coding system in which input frames are selected for coding either as a Random Access Pictures (“RAP frames”) or as a non-RAP frame. Coded RAP...
US20140133583 USE OF FRAME CACHING TO IMPROVE PACKET LOSS RECOVERY  
Various new and non-obvious apparatus and methods for using frame caching to improve packet loss recovery are disclosed. One of the disclosed embodiments is a method for using periodical and...
US20130010861 USE OF FRAME CACHING TO IMPROVE PACKET LOSS RECOVERY  
Various new and non-obvious apparatus and methods for using frame caching to improve packet loss recovery are disclosed. One of the disclosed embodiments is a method for using periodical and...
US20050123056 Encoding and decoding of redundant pictures  
A method of encoding video data including at least one primary picture and at least one redundant picture corresponding to the information content of the primary picture. A reference picture list...
US20120288014 ERROR CONCEALMENT FOR FRAME LOSS IN MULTIPLE DESCRIPTION CODING  
Systems and methodologies for concealing frame loss in a video transmission environment are provided herein. Multiple Description Coding (MDC) can be used as an Error Resilience technique for...
US20110075729 METHOD AND APPARATUS FOR AUTOMATIC VISUAL ARTIFACT ANALYSIS AND ARTIFACT REDUCTION  
A system and method for correcting artifacts present in video frames is disclosed. The system includes a decision module (110) and an artifact correction unit (120). The system receives artifact...
US20100322309 METHOD FOR SPATIAL ERROR CONCEALMENT  
A method for performing spatial error concealment is provided. The method includes the following steps: detecting a damaged macroblock; obtaining coding information of neighboring macroblocks of...
US20130051479 METHOD FOR PAYLOAD FORMATTING AND DEFORMATTING FOR BURST LOSS RECOVERY  
Disclosed are payload formatting and deformatting methods for burst data loss recovery. The payload formatting method according to an embodiment of the present invention includes: generating an...
US20140362931 FRAME BLOCK COMPARISON  
Various arrangements for testing video decoder device functionality are presented. A video frame decoded by a video decoder device under test may be received. The received video frame may be...
US20140301486 VIDEO QUALITY ASSESSMENT CONSIDERING SCENE CUT ARTIFACTS  
A particular implementation detects scene cut artifacts in a bitstream without reconstructing the video. A scene cut artifact is usually observed in the decoded video (1) when a scene cut picture...
US20140269942 CONCURRENT DECOMPRESSION OF MULTIPLE VIDEO STREAMS WITH CONSTRAINED DECOMPRESSION RESOURCES  
A method and system for gracefully reducing demands for shared decompression resources required to present multiple video streams concurrently such that their streaming video content is...
US20150189332 Mitigating Impairments in Redundant Streams  
In one embodiment, a method comprises receiving a primary stream of encoded frames and a separate stream of redundant frames. The method further comprises decoding and reconstructing in parallel...
US20130329809 SYNC FRAME RECOVERY IN REAL TIME VIDEO TRANSMISSION SYSTEM  
An error recovery method may be engaged by an encoder to recover from misalignment between reference picture caches at the encoder and decoder. When a communication error is detected between a...
US20100329315 Transmitting Video Between Two Stations in a Wireless Network  
In accordance with some embodiments, a differential frame may be constructed, for example, by differencing frames or using an error prediction method. More frequently and less frequently used...
US20090034632 INTRA-FORECAST MODE SELECTING, MOVING PICTURE CODING METHOD, AND DEVICE AND PROGRAM USING THE SAME  
An intra-forecast mode selecting method is provided to select an intra-forecast mode suitable for intra-forecast coding of a coding subject block from intra-forecast modes including a DC...
US20120307915 Method and System for Viewer Quality Estimation of Packet Video Streams  
A method and system for the estimation of the effect of packet loss on a viewer's subjective perception of a packet video stream. The method involves estimating a quality metric for every frame in...
US20100322314 METHOD FOR TEMPORAL ERROR CONCEALMENT  
A method for performing temporal error concealment is provided. The method includes the following steps: detecting a damaged macroblock having four 8×8 damaged blocks; obtaining motion vectors of...
US20130170565 Motion Estimation Complexity Reduction  
A process for reducing computational complexity associated with motion estimation and thereby reducing the power consumption and reducing cycle requirements for video compression techniques is...
US20140098898 VIDEO DECODING ERROR CONCEALMENT TECHNIQUES  
Techniques for synchronizing error concealment during video decoding include determining a decoding error. A recovery point within a current frame is determined for each decoding error. The...
US20090122879 TRANSIENT VIDEO ANOMALY ANALYSIS AND REPORTING SYSTEM  
A system and method for detecting and analyzing transient video anomalies in AV broadcast networks includes AV signal monitors associated with each decoding device in the network for continuously...
US20120020415 METHOD FOR ASSESSING PERCEPTUAL QUALITY  
The present invention relates to a full-reference (FR) objective method for assessing perceptual quality of decoded video frames in the presence of packet losses and coding artifacts. A method of...
US20140341307 OVERCOMING LOST IP PACKETS IN STREAMING VIDEO IN IP NETWORKS  
A computer-implemented method, apparatus and computer program product for recovering from lost packets in video transmissions, the method performed by a computerized device, comprising: receiving...
US20130121424 MOTION COMPENSATED DE-BLOCKING  
Digital noise removal methods and systems for picture quality improvement on next generation high quality set-top-box and digital TV SOCs is disclosed with particular to a de-blocking method and...
US20070014349 Residual prediction mode in scalable video coding  
Methods, devices, and computer code products for encoding and decoding a video signal including conditional encoding and decoding of a residual prediction flag for an enhancement layer only of all...
US20060039475 Error concealment in a video decoder  
The error concealment technique disclosed herein relates to the use of existing information by the decoder to conceal bitstream errors regardless of what the encoder does. Examples of existing...
US20140286441 VIDEO QUALITY MEASUREMENT  
A particular implementation receives a bitstream and derives parameters from the bitstream. The parameters include quantization parameters, content unpredictability parameters, ratios of lost...
US20080260047 FEEDBACK BASED SCALABLE VIDEO CODING  
A system and method provides a first integrity check code that can be calculated at an encoder and then sent to a decoder as a supplemental enhancement information message. The decoder can then...
US20130195206 VIDEO CODING USING EYE TRACKING MAPS  
Video, including a sequence of original pictures, is encoded using eye tracking maps. The original pictures are compressed. Perceptual representations, including the eye tracking maps, are...
US20150071363 METHOD AND APPARATUS FOR ASSESSING VIDEO QUALITY  
Embodiments of the present invention provide a method and an apparatus for assessing video quality. The method includes: determining an actual quantization parameter and a critical quantization...
US20140376645 Slice Priority Prediction System for H.264 Video  
This invention relates to technology to mitigate degradation and distortion of H.264 video transmission over wireless networks.
US20140023147 CROSS LAYER CODING FOR SATELLITE MOBILE TV BROADCAST METHOD AND APPARATUS  
Methods and apparatus providing error protection in multicast-broadcast service by encoding multimedia content according to a first protocol to provide a plurality of distinct video streams,...
US20080159410 Methods and systems for computing the quality of an MPEG-2 video stream  
Novel “loss rate” metrics are presented that can be used to indicate the quality of a video stream. These metrics may be determined using a simplified method or by a more sophisticated method, the...
US20090323826 Error concealment techniques in video decoding  
Error concealment techniques for video decoding are described. For example, a video decoder after finding a corrupted picture in a bit stream, finds a suitable neighbor for the corrupted picture....
US20070217506 Soft decision and iterative video coding for MPEG and H.264  
A method of encoding video data using soft decision quantization makes use of iterative encoding to provide the ability to optimize encoding across different functional elements in a hybrid video...
US20090254783 Information Signal Encoding  
A very coarse quantization exceeding the measure determined by the masking threshold without or only very little quality losses is enabled by quantizing not immediately the prefiltered signal, but...
US20130279606 SYSTEM AND METHOD FOR ERROR-RESILIENT VIDEO CODING  
Error resilient video coding schemes that may be employed at a transmitter or transcoder to limit error propagation at the receiver. Embodiments may include the use of Inhomogeneous Temporal...
US20140119460 METHOD AND DEVICE FOR ASSESSING PACKET DEFECT CAUSED DEGRADATION IN PACKET CODED VIDEO  
Because of the encoding, decoding, and/or transmitting characteristic, the blocks affected by packet defect usually gather in a small spatial/temporal area. The viewers perception of each affected...
US20060104365 Bi-directional temporal error concealment  
Systems and methods for bi-directional temporal error concealment are described. In one aspect, a lost frame is detected during encoded video decoding operations. Bi-directional estimations for...
US20050163211 Scalable video transmission  
A method (800) for improving a quality of a scalable video object plane enhancement layer transmission over an error-prone network. The enhancement layer transmission includes at least one...
US20140321558 VIDEO QUALITY MEASUREMENT CONSIDERING MULTIPLE ARTIFACTS  
A particular implementation determines objective distortion levels (d,) respectively for a plurality of artifact types. The objective distortion levels are aligned to ensure that the same...
US20100086063 QUALITY METRICS FOR CODED VIDEO USING JUST NOTICEABLE DIFFERENCE MODELS  
Systems and methods for applying a new quality metric for coding video are provided. The metric, based on the Just Noticeable Difference (JND) distortion visibility model, allows for efficient...
US20090046092 ENCODING DEVICE, ENCODING METHOD, AND PROGRAM  
A coding device having a judgment unit configured to judge whether or not a GOP is a GOP where GOP unit flicker is readily visible in an image decoded after encoded the GOP, for each of GOPs...
US20120044989 TECHNIQUES FOR IDENTIFYING BLOCK ARTIFACTS  
Techniques are described that can be used to identify blocking artifacts in both vertical and horizontal directions. For blocking artifacts in a vertical direction, a horizontal gradient is...
US20070291852 Moving picture reproducing apparatus  
If a frame which should be referred to does not drop, a reference picture list forming unit forms a reference picture list on the basis of the number of reference frames and the serial numbers of...
US20090268823 BOUNDARY ARTIFACT CORRECTION WITHIN VIDEO UNITS  
This disclosure describes techniques for correcting artifacts that occur along a boundary of a substitute video unit generated using video unit substitution, e.g., motion-compensated video unit...
US20100309379 EFFICIENT SPATIAL AND TEMPORAL TRANSFORM-BASED VIDEO PREPROCESSING  
In one method embodiment, receiving a first temporal sequence of video frames, the first temporal sequence corrupted with noise; frame matching the video frames according to a first stage of...
US20070058718 Efficient integrated digital video transcoding  
Efficient integrated digital video transcoding is described. In one aspect, an integrated transcoder receives an encoded bitstream. The integrated transcoder transcodes the encoded bitstream by...
US20150208098 METHODS AND APPARATUS FOR ERROR RATE ESTIMATION  
Methods and apparatus for estimating received error rates. In one embodiment, the estimation of received error rates is conducted in relation to a bus interface such as a high-speed...
US20070009041 Method for video data stream integration and compensation  
A method for video data stream integration and compensation includes using a discrete wavelet transform technique to compress and encode key frames of a video signal, and a discrete cosine...