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Pulse Or Digital Communications > Bandwidth Reduction Or Expansion > Television Or Motion Video Signal > Feature Based > Separate Coders Separate CodersSeparate Coders patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/01/07 - 20070253479 - Robust and efficient compression/decompression providing for adjustable division of computational complexity between encoding/compression and decoding/decompression Various embodiments of the present invention include compression/decompression methods, systems, and devices that adjust a division of a total computational complexity of compression and decompression between encoding and decoding. These embodiments include an encoder that encodes a received signal at a selectable level of computational complexity and a decoder that ... 10/04/07 - 20070230568 - System and method for transcoding between scalable and non-scalable video codecs Systems and methods are provided for performing transcoding in video communication system that use scalable video coding. The systems and methods can be used to transcode or convert input signals having certain characteristics into desired output signals having different characteristics requirements. The systems and methods are based on compressed domain ... 10/04/07 - 20070230567 - Slice groups and data partitioning in scalable video coding A system and method for separating the data needed for inter-layer prediction and data unneeded for inter-layer prediction in the bitstream. For the coded data of a picture, the decoding of the data needed for inter-layer prediction is performed independent of the data not needed for inter-layer prediction, and it ... 10/04/07 - 20070230566 - System and method for providing error resilience, random access and rate control in scalable video communications Systems and methods for error resilient transmission, rate control, and random access in video communication systems that use scalable video coding are provided. Error resilience is obtained by using information from low resolution layers to conceal or compensate loss of high resolution layer information. The same mechanism is used for ... 09/27/07 - 20070223575 - Reference picture marking in scalable video encoding and decoding A device, an encoding method, and a decoding method enable a separate marking of base representations and enhanced representations of key access units to save memory or to allow a better scalable video coding optimization. The encoding method of a sequence of original pictures to a sequence of access units ... 09/27/07 - 20070223573 - Method and apparatus for encoding/decoding a first frame sequence layer based on a second frame sequence layer In one embodiment of a method of decoding a first frame sequence layer, at least one motion vector of an image block in a frame of the first frame sequence layer is determined based on a motion vector for an image block in a frame of a second frame sequence ... 09/20/07 - 20070217502 - Switched filter up-sampling mechanism for scalable video coding An improved switched filter up-sampling mechanism for scalable video coding. A filter switching mechanism of the present invention takes advantage of the best performance of each of the filters in a collaborative manner. The switching process of the present invention can be generalized to more filter choices and potentially relieve ... 09/06/07 - 20070206673 - Systems and methods for error resilience and random access in video communication systems Systems and methods for error resilient transmission and for random access in video communication systems are provided. The video communication systems are based on single-layer, scalable video, or simulcast video coding with temporal scalability, which may be used in video communication systems. A set of video frames or pictures in ... 08/30/07 - 20070201551 - System and apparatus for low-complexity fine granularity scalable video coding with motion compensation A coding structure is configured to improve coding efficiency together with reduced encoding and decoding complexity for scalable video encoding. Especially, the case of coding multiple FGS layers on top of a discrete layer is considered. For coding multiple FGS layers, a decoder-oriented two-loop structure is used. At the decoder ... 08/30/07 - 20070201550 - Method and apparatus for entropy coding in fine granularity scalable video coding An FGS entropy coding method is suitable for the case when the refinement coefficients at the FGS layer have different prediction from its base layer. When temporal prediction is used in FGS layer coding and the refinement coefficients at the FGS layer have different prediction from its base layer, drift ... 08/23/07 - 20070195879 - Method and apparatus for encoding a motion vection In one embodiment, a motion vector difference associated with a current block in a first picture layer is obtained based on motion vector information for a block in a second picture layer. The second picture layer has lower quality pictures than pictures in the first picture layer, and the block ... 08/23/07 - 20070195878 - Device and method for receiving video data The device and method according to the invention prevent that the consistency of image quality is negatively affected when transmission rate fluctuations occur on a communication channel. The invention relies on the perception that the transition from a full quality video signal to a basic-quality video signal, respectively from a ... 08/09/07 - 20070183494 - Buffering of decoded reference pictures A method of decoding a scalable video data stream comprising a base layer and at least one enhancement layer, the method comprising: decoding pictures of the video data stream according to a first decoding algorithm, if pictures only from the base layer are to be decoded; and decoding pictures of ... 08/09/07 - 20070183493 - Method and device for image and video transmission over low-bandwidth and high-latency transmission channels The present invention provides a method for transmission of a images and/or video over bandwidth limited transmission channels having varying available bandwidth, which method comprises the use of a classification algorithm for decomposing the images and/or video to be transmitted into multiple spatial areas, each area having a specific image ... 08/02/07 - 20070177664 - Entropy encoding/decoding method and apparatus Provided is a method and apparatus for enhancing the efficiency of entropy-coding a fine granular scalability (FGS) layer. The method of entropy-encoding current coefficients included in a predetermined one of a plurality of separate quality layers includes reading coefficients of lower layers, which correspond to the current coefficients; grouping the ... 07/12/07 - 20070160137 - Error resilient mode decision in scalable video coding An encoder for use in scalable video coding has a mechanism to perform macroblock mode selection for the enhancement layer pictures. The mechanism includes a distortion estimator for each macroblock that reacts to channel errors such as packet losses or errors in video segments affected by error propagation; a Lagrange ... 07/05/07 - 20070153891 - Method and apparatus for smoothing overall quality of video transported over a wireless medium A system and method for controlling a scalable video application by modeling it as a Markov decision process. The model is based on measuring the relative progress of the application, where relative progress is the difference between the allocated CPU budget for processing a frame and the actual CPU cycles ... 06/28/07 - 20070147494 - Video-signal layered coding and decoding methods, apparatuses, and programs A video signal is encoded at a plurality of coding layers exhibiting different spatial resolutions. An input video signal is spatially scaled down into a resolution-lowered video signal that exhibits a resolution lower than the video signal. The resolution-lowered video signal is encoded with a decoding procedure to obtain first ... 06/28/07 - 20070147493 - Methods and apparatuses for constructing a residual data stream and methods and apparatuses for reconstructing image blocks In one embodiment, the method includes parsing data from a data stream for the first picture layer into a sequence of data blocks on a cycle-by-cycle basis such that at least one data block earlier in the sequence is skipped during a cycle if a data block later in the ... 06/28/07 - 20070147492 - Scalable encoding and decoding of interlaced digital video data Fully scalable encoder and decoder for interlaced video. A method for encoding an interlaced sequence of digital video data decomposes the interlaced video sequence into first and second fields, performs digital filtering to get lower frequency and higher frequency component signals of the first fields, and uses spatio-temporal filtering and ... 06/21/07 - 20070140331 - Video encoding and decoding methods and corresponding encoding and decoding devices The invention relates to an encoding method applied to an input video sequence corresponding to successive scenes subdivided into successive video object planes (VOPs) and generating, for coding all the video objects of said scenes, a coded bitstream the content of which is described in terms of separate channels and ... 06/14/07 - 20070133677 - Method and apparatus for encoding and decoding video signals on group basis A method and apparatus for encoding and decoding a video signal on a group basis is disclosed, in which blocks constituting a multi-layer video signal are coded. The method includes grouping every two or more blocks having symbols that have a value identical to a predetermined value, generating group-based symbols ... 06/14/07 - 20070133676 - Method and apparatus for encoding and decoding video signal depending on characteristics of coefficients included in block of fgs layer Encoding and decoding video signals according to the characteristics of coefficients included in the block of a fine granularity scalability layer is provided. Non-unitary coefficients that constitute the block and have absolute values that are not 0 or 1 are extracted from the video signal, a representative value from run ... 06/14/07 - 20070133675 - Video transmitting apparatus and video receiving apparatus A video transmitting apparatus that is able to efficiently transmit and decode only the video data of the region of interest without lowering coding efficiency, and that is able to change the region of interest during reproduction of video. In this apparatus, a base layer coding section (116) codes the ... 05/31/07 - 20070121719 - System and method for combining advanced data partitioning and fine granularity scalability for efficient spatiotemporal-snr scalability video coding and streaming A system and method is provided for combining advanced data partitioning and fine granularity scalability in the transmission of digital video signals. A partition unit 440 located in a base layer encoding unit 410 of a video encoder 400 partitions a base layer bit stream 310, 320 into a base ... 05/17/07 - 20070110150 - System and method for efficient scalable stream adaptation A system and method for signaling low-to-high layer switching points in a file format level to enable efficient scalable stream switching in streaming servers and local file playback. The present invention also provides for a system and method for signaling low-to-high layer switching points in video bit stream, e.g., to ... 04/26/07 - 20070091997 - Method and apparatus for scalable video decoder using an enhancement stream A method and apparatus is provided for decoding an encoded baseline video stream and an enhancement stream. The baseline video stream is decoded, upscaled and enhanced by applying adaptive filters specified by the enhancement stream. Baseline upscaled images are then coded to motion compensate enhanced high resolution images using previously ... 04/19/07 - 20070086521 - Efficient decoded picture buffer management for scalable video coding A system and method for enabling the removal of decoded pictures from a decoded picture buffer as soon as the decoded pictures are no longer needed for prediction reference and future output. An indication is introduced into the bitstream as to whether a picture may be used for inter-layer prediction ... 04/19/07 - 20070086520 - Intra-base-layer prediction method satisfying single loop decoding condition, and video coding method and apparatus using the prediction method A method and apparatus for improving the performance of a multi-layer based video codec are provided. The method includes obtaining a difference between a base layer block corresponding to a current layer block and an inter-prediction block for the base layer block; down-sampling an inter-prediction block for the current layer ... 04/19/07 - 20070086519 - Apparatus for managing multipurpose video streaming and method of the same Provided is an apparatus for managing multipurpose video streaming and a method of the same, which are capable of creating high-resolution video frames for displaying and storing received video data in real time and low-resolution video frames for network transmission, and managing the created video stream. The apparatus for managing ... 04/19/07 - 20070086518 - Method and apparatus for generating a motion vector One embodiment provides a method of generating a motion vector associated with a current block in a first picture layer. In this embodiment, motion vector information for a block in a second picture layer is obtained. The second picture layer has lower quality pictures than pictures in the first picture ... 04/19/07 - 20070086517 - Method and system for frame rate adaptation Described herein are a method and system for frame rate adaptation. There may be conditions that require the rate of a video sequence to be dynamically controlled, and a frame interval may be adaptively selected every frame. A frame within the video sequence may contain, for example, a time stamp ... 04/19/07 - 20070086516 - Method of encoding flags in layer using inter-layer correlation, method and apparatus for decoding coded flags A method and apparatus for efficiently encoding diverse flags being used in a multilayer-based scalable video codec, based on an inter-layer correlation. The encoding method includes judging whether flags of a current layer included in a specified unit area are all equal to flags of a base layer, setting a ... 04/19/07 - 20070086515 - Spatial and snr scalable video coding An SNR and spatial scalable video coder uses standards compatible encoding units (303, 310, 320) to produce abase layer encoded signal (130) and at least two enhanced layer encoded signals (314, 325). The base layer and at least the first enhanced layer are produced from a downscaled signal (200). At ... 04/12/07 - 20070081588 - Redundant data encoding methods and device Apparatus and methods of using content information for encoding multimedia data are described. A method of processing multimedia data includes A method of processing multimedia data, including obtaining content information of multimedia data, and encoding the multimedia data to form an encoded bitstream, said encoding comprising inserting at least one ... 04/12/07 - 20070081587 - Content driven transcoder that orchestrates multimedia transcoding using content information Apparatus and methods of using content information for encoding multimedia data are described. A method of processing multimedia data includes receiving multimedia data, and encoding the multimedia data into a first data group and a second data group based on content of the multimedia data, the first data group being ... 04/12/07 - 20070081586 - Scalability techniques based on content information Apparatus and methods of using content information for encoding multimedia data are described. A method of processing multimedia data includes classifying content of multimedia data, and encoding the multimedia data in a first data group and in a second data group based on the content classification, wherein the first data ... 03/29/07 - 20070071089 - Scalable audio encoding and decoding apparatus, method, and medium Provided is a scalable encoding method, apparatus, and medium. The method includes: encoding a base layer and encoding a first enhancement layer and a second enhancement layer in a frame having the base layer; and generating an encoded frame by synthesizing the encoded results. Accordingly, only if the loss of ... 03/29/07 - 20070071088 - Method and apparatus for entropy encoding and entropy decoding fine-granularity scalability layer video data Methods and apparatuses for entropy encoding and decoding Fine-granularity Scalability (FGS) layer video data are provided. The encoding method includes extracting residual data between a first block and a second block in a layer lower than the FGS layer corresponding to the first block; obtaining transform coefficients; dividing the transform ... 03/29/07 - 20070071087 - Apparatus and method for video encoding and decoding and recording medium having recorded theron program for the method An intraprediction encoding and decoding apparatus and a method thereof are provided to improve compression efficiency. A video encoding method includes dividing an input video into a plurality of sub-planes based on a spatial characteristic of the input video, performing intraprediction encoding on at least a first sub-plane of the ... 03/22/07 - 20070064791 - Coding method producing generating smaller amount of codes for motion vectors A motion vector coder performs coding on motion vectors MV0, MV1 and MV2 in the stated order. Initially, the motion vector coder receives the motion vectors MV0-MV2 from a motion vector holder. The motion vector coder codes the motion vector MV0 at the lowest layer 0. Subsequently, the motion vector ... 03/22/07 - 20070064790 - Apparatus and method for video encoding/decoding and recording medium having recorded thereon program for the method An apparatus and a method for video prediction encoding and decoding to improve video compression efficiency are provided. A video encoding method includes dividing an input video into a plurality of sub-planes, generating a reference sub-plane based on the divided sub-planes, performing intraprediction on the generated reference sub-plane, and performing ... 03/01/07 - 20070047644 - Method for enhancing performance of residual prediction and video encoder and decoder using the same A method and apparatus for enhancing the performance of residual prediction in a multi-layered video codec are provided. A residual prediction method includes calculating a first residual signal for a current layer block; calculating a second residual signal for a lower layer block corresponding to the current layer block; performing ... 03/01/07 - 20070047639 - Rate-distortion video data partitioning using convex hull search Method for partitioning video data into a base layer and at least one enhancement layer entailing receiving video data, determining DCT coefficients for a plurality of blocks of a video frame to form the base layer and the at least one enhancement layer and for each block, quantizing the DCT ... 02/08/07 - 20070030893 - Apparatus and method for conserving memory in a fine granularity scalability coding system Decoding time stamps (DTSS) and presentation time stamps (PTSs) are used in fine granularity scalability (FGS) coding during MPEG-4 video coding. An input video is encoded in an FGS encoder into a base layer bitstream and an enhancement bitstream. The bitstreams are provided over a variable bandwidth channel to an ... 02/01/07 - 20070025439 - Method and apparatus for encoding and decoding video signal according to directional intra-residual prediction A method and apparatus for encoding and decoding a video signal according to directional intra-residual prediction. The video encoding method of the present invention includes calculating first residual data by performing directional intra-prediction on a first block of a base layer with reference to a second block of the base ... 02/01/07 - 20070025438 - Elastic storage A method and apparatus for providing elastic storage of layered video data stored in a storage apparatus are disclosed. The stored enhancement layer video data is read out of the storage apparatus. The enhancement layer video data is then at least partially decoded or ultimately completely deleted. The decoded enhancement ... 01/25/07 - 20070019721 - Method and device for processing a sequence of digital images with spatial or quality scalability A method of temporal prediction using motion estimation is implemented in a sequence of digital images, in the context of coding in a bitstream comprising at least first and second layers linked to each other in a chosen hierarchical relationship of scalability. Provision is made for constructing at least one ... 01/18/07 - 20070014349 - 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 base layers are discrete layers. If some base layers are not discrete, the residual prediction flag is always encoded and ... 01/18/07 - 20070014348 - Method and system for motion compensated fine granularity scalable video coding with drift control An adaptively formed reference block is used for coding a block in a current frame in the enhancement layer. In particular, the reference block is formed from a reference block in base layer reconstructed frame and a reference block in the enhancement layer reference frame together with a base layer ... 01/18/07 - 20070014346 - Coding dependency indication in scalable video coding A method of encoding and decoding a scalable video data stream comprising a base layer and at least one enhancement layer. A scalable data stream is encoded, wherein the data stream includes at least one non-required picture in a temporal location of a layer wherein decoding of pictures in an ... 10/19/06 - 20060233235 - Video encoding/decoding apparatus and method capable of minimizing random access delay Video encoding and decoding apparatuses and methods capable of minimizing a random access delay are provided. The video encoding apparatus includes an encoding control unit which sets an intra frame (I-frame) interval of a base layer shorter than an I-frame interval of an enhancement layer, a base layer encoding unit ... 09/14/06 - 20060203904 - Video processing and recording apparatuses and methods A method for video processing. A first video sequence (VS) is received. The first VS is processed to generate a second VS in a first resolution. The second VS is adjusted to a third VS in a second resolution. It is determined whether the difference between the first VS and ... 06/22/06 - 20060133475 - Video coding A method and apparatus for providing spatial scalable compression of an input video stream is disclosed. A base stream is encoded which comprises base features. A residual signal is encoded to produce an enhancement stream comprising enhancement features, wherein the residual signal is the difference between original frames of the ... 06/22/06 - 20060133472 - Spatial scalable compression A method and apparatus for providing spatial scalable compression of a video stream is disclosed. The video stream is downsampled to reduce the resolution of the video stream. The downsampled video stream is encoded to produce a base stream. The base stream is decoded and upconverted to produce a reconstructed ... 05/11/06 - 20060098731 - Digital video data transmission system and method Provided are a digital video data transmission system and digital video data transmission method. The digital video data transmission system includes a transmitting unit transmitting valid first data in input digital video data having spatial locality to a bus as output encoding information without bit-inversion coding the first data, bit-inversion ... 02/09/06 - 20060029127 - Controlling the distribution of different frames per second of a video stream to various recipients This invention discloses a system for distribution of real time video signals including at least one video camera generating at least one video signal at a supply frame rate, and at least two video signal recipients receiving the at least one video signal at least two respective recipient frame rates ... 12/01/05 - 20050265444 - Moving image encoding/decoding apparatus and method Provided are a moving image encoding/decoding apparatus and method capable of eliminating an error that occurs when encoding moving image data. The moving image encoder includes a base layer encoder receiving an original image and encoding the original image using a predetermined lossy encoding method and an enhancement layer encoder ... 12/01/05 - 20050265443 - Coding apparatus and method, decoding apparatus and method, data processing system, storage medium, and signal A coding apparatus for embedding second data into first data without deteriorating the first data includes a memory for storing at least partial data of the first data. An embedding coder embeds the second data into the first data by rearranging, according to the second data, at least partial data ... 12/01/05 - 20050265442 - Apparatus for scalable encoding/decoding of moving image and method thereof Provided are a scalable encoding/decoding apparatus and method for the same for a moving image of more than 8 bits. The scalable moving image encoding apparatus includes a pixel value clipper clipping a pixel value of an original image to a pixel value with a predetermined pixel depth, a base ... 11/24/05 - 20050259729 - Video coding with quality scalability A method of coding a quality scalable video sequence is provided. An N-bit input frame is converted to an M-bit input frame, where M is an integer between 1 and N. To be backwards compatible with existing 8-bit video systems, M would be selected to be 8. The M-bit input ... 11/17/05 - 20050254575 - Multiple interoperability points for scalable media coding and transmission A method and device for encoding, decoding, storage and transmission of a scalable data stream to include layers having different coding properties. The method includes: producing one or more layers of the scalable data stream, wherein the layers are characterized by a coding property, and signaling the layers with the ... 09/29/05 - 20050213655 - Device and method for compressing digital images The present invention relates to a device for compressing a source image by means of a base layer, coding a base image, and of an enhancement layer, coding a residual existing between the source image and the base image, the source image and the base image being structured as blocks ... 09/15/05 - 20050201458 - Image encoding system and method An image encoding system includes a processor and a memory device coupled to the processor. The processor is configured to receive input data containing image information, to generate encoded data based on a frequency domain transform of the input data, and to selectively generate an encoded reference based on a ... 09/08/05 - 20050195895 - System and method for robust video coding using progressive fine-granularity scalable (pfgs) coding A video encoding scheme employs progressive fine-granularity layered coding to encode video data frames into multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video. Some of the enhancement layers in a current frame are predicted from at least one ... 09/01/05 - 20050190834 - System and method for robust video coding using progressive fine-granularity scalable (pfgs) coding A video encoding scheme employs progressive fine-granularity layered coding to encode video data frames into multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video. Some of the enhancement layers in a current frame are predicted from at least one ... 08/25/05 - 20050185712 - Method, medium, and apparatus for 3-dimensional encoding and/or decoding of video A method, medium, and apparatus for 3-dimensional encoding and/or decoding of videos, including adapting to temporal and spatial characteristics of the videos. Methods include performing temporal estimation on videos taken by a camera located in a centerly position with reference to videos taken by the same camera at immediately previous ... 07/28/05 - 20050163211 - 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 re-synchronisation marker followed by a Video Packet Header and header extensions. A reference VOPs' identifier (e.g. ‘ref_select_code’) is replicated from the video ... 06/23/05 - 20050135476 - Streaming multimedia data over a network having a variable bandwith The method of streaming multimedia data over a network having a variable bandwidth comprises the steps of encoding data coming from a multimedia source and supplying a set of encoded streams formed with stream elements containing encoded multimedia data. The encoded streams have various predetermined bit rates associated with specific ... ### FreshPatents.com Support |