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| Number | Title | Issue Date |
| 8189660 | Bit rate control method and apparatus Provided are a bit rate control method and apparatus for intra-only coding, the method including calculating a similarity between at least one block group from among block groups including a plurality of macroblocks in a current frame to be encoded and at least one ... | 05/29/2012 |
| 8189659 | Cross-layer optimization for scalable video multicast over IEEE 802.11 wireless local area networks A system and method for transmitting video signals to a plurality of receivers in a multicast session, including controlling and adapting coding, transmission and protection schemes of a plurality of layers of a network protocol stack are described. ... | 05/29/2012 |
| 8189661 | Remote desktop protocol (RDP) tile image classification for improving compression efficiency and quality Systems, methods and computer readable media are disclosed for improving compression efficiency and quality in a remote session via tile image classification and variable encoding. A server determines a set of codecs that are shared by both the server and a correspo... | 05/29/2012 |
| 8184692 | Distributed and automated video encoding and delivery system At a user or client site, a user initially visits a website hosted by a partner, and following an initial interaction with the website, the user is provided with various software from an administrator website. The software enables the user to download information, s... | 05/22/2012 |
| 8184693 | Adaptive filtering for bit-depth scalable video codec Adaptive filtering may be used to increase the quality of tone mapped, baseline layer encoded information. As a result, scalable video codecs may be implemented with improved picture quality in some embodiments. ... | 05/22/2012 |
| 8184691 | Managing telemetry bandwidth and security An encryption and authentication technique that achieves enhanced integrity verification through assured error-propagation using a multistage sequence of pseudorandom permutations. The present invention generates intermediate data-dependent cryptographic variables a... | 05/22/2012 |
| 8180195 | Memory structures and methods for video codec A memory device for storing a plurality of macroblocks may include a plurality of memory banks. Each macroblock may include m*n pixel data, wherein m is a positive integer, and wherein n also is a positive integer. The plurality of memory banks is adapted to store t... | 05/15/2012 |
| 8179962 | Motion image encoding method and motion image decoding method The present invention provides a video coding method and a video decoding method which allow enhancement of coding efficiency and improvement in video quality. A video coding apparatus includes: a mode determination unit which determines a notification method for no... | 05/15/2012 |
| 8165201 | Method of computing disparity, method of synthesizing interpolation view, method of encoding and decoding multi-view video using the same, and encoder and decoder using the same The invention relates to a method of computing a disparity, a method of synthesizing an interpolation view, a method of encoding and decoding multi-view video using the same, and an encoder and a decoder using the same. In particular, the invention relates to a meth... | 04/24/2012 |
| 8160137 | Image data compression apparatus for referring to at least one characteristic value threshold to select target compression result from candidate compression results of one block and related method thereof An exemplary image data compression apparatus includes a compression circuit, a characteristic value extracting circuit, and a selecting circuit. The compression circuit is utilized for applying a plurality of different compression approaches to a first block, and a... | 04/17/2012 |
| 8160136 | Probabilistic bit-rate and rate-distortion cost estimation for video coding A method of video encoding is provided that includes computing spatial variance for video data in a block of a video sequence, estimating a first bit-rate based on the spatial variance, a transform coefficient threshold, and variance multiplicative factors empirical... | 04/17/2012 |
| 8135061 | Variable bit rate encoding A system, machine-readable medium and method for processing video comprising a video segmentor configured to receive a source video and to split the source video into segments; a bit rate allocator configured to receive the segments and generate target bit rates cor... | 03/13/2012 |
| 8130825 | Processor for video data encoding/decoding A video processor uses attributes of video data to perform encoding and decoding. Some embodiments dynamically configure the processor via a sequence of instructions, where the instructions include information on the attributes of the current video data. Some embodi... | 03/06/2012 |
| 8130826 | Systems and methods for preparing network data for analysis Preparation of network data for analysis. An original frame representing a frame transmitted in a communications link can be received wherein the original frame comprises a payload. At least a portion of the payload can be removed from the original frame. Statistics... | 03/06/2012 |
| 8126048 | Recording streaming delta-encoded data Apparatus having corresponding methods, computer-readable media, and data structures comprise an input circuit adapted to receive a stream of delta-encoded data; a record circuit adapted to store the stream of delta-encoded data in a stream file; a current frame cir... | 02/28/2012 |
| 8126050 | Methods and apparatus for decoding and displaying different resolution video signals Methods and apparatus for implementing a reduced cost HDTV/SDTV video decoder are disclosed. The described joint video decoder is capable of decoding HDTV pictures at approximately the resolution of standard definition television pictures and can be used to decode H... | 02/28/2012 |
| 8126049 | Method and a device for transmitting images The method of transmission of a datastream representing a sequence of images over a network in which the quantity of information that may be sent per unit of time varies substantially cyclically, said transmission extending over a plurality of cycles, comprises: | 02/28/2012 |
| 8121189 | Video decoding using created reference pictures Reference pictures can be created to assist with video decoding. For example, a method for decoding video can comprise receiving an encoded video bit stream, determining that a reference picture is needed, and creating and inserting the reference picture into the en... | 02/21/2012 |
| 8116373 | Context-sensitive encoding and decoding of a video data stream Disclosed are methods and devices for compressing and decompressing video data streams, according to which the statistical relationship between image symbols and the context assigned thereto is used for compression. Particularly disclosed is a context-sensitive enco... | 02/14/2012 |
| 8090014 | Managing multiview streaming video data composed of frames A system for managing multiview streaming video data composed of a plurality of frames includes an encoder configured to encode multiple representations of at least one frame of the plurality of frames corresponding to multiple views using different reference frames... | 01/03/2012 |
| 8077774 | Automated monitoring of digital video image quality A system and method for detecting video stream macroblock errors and pixelation by detecting macroblock artifacts in analog television signals from a conventional set top box. ... | 12/13/2011 |
| 8059712 | Independently adjusting the quality levels for luminance and chrominance channels in a digital image A system that compresses a digital image. During operation, the system obtains a digital image in which the image components are de-correlated into separate channels containing luminance information and chrominance information. Next, the system receives a quality nu... | 11/15/2011 |
| 8040947 | Bitrate control device for controlling bitrate of video data A bitrate control device controls bitrate of video data and includes: a setting module that sets, for each frame in the video data, a target code amount to be used in encoding the frame by an encoding module for maintaining a given bitrate; an adjusting module that ... | 10/18/2011 |
| 8018996 | Arithmetic decoding apparatus and method The decoding apparatus enabling high-speed arithmetic decoding in decoding data coded using CABAC is an arithmetic decoding apparatus which receives, as input, coded data obtained by converting multivalue information of syntax into binary data then performing Contex... | 09/13/2011 |
| 8009730 | Method for controlling the encoder output bit rate in a block-based video encoder and corresponding video encoder apparatus Constant-bitrate rate control is very useful for real-time video transmission. However, it is difficult to realize a good CBR rate control in an MPEG4-AVC video codec. According to the invention, an adapted ρ-domain rate control processing for real-time rate contro... | 08/30/2011 |
| 7986730 | Methods and apparatus for updating a reduction ratio According to the present invention, methods and apparatus for updating reduction ratios are provided. An input bit sequence can be altered to provide modified output bit sequence. The input bit sequence may represent information in a portion of data such as a video ... | 07/26/2011 |
| 7978764 | Method of video encoding for handheld apparatuses selecting best prediction function according to optimal rate-distortion value The present invention relates to a method of encoding a sequence of pictures, a picture being divided into blocks of data, said encoding method comprising the steps of:—computing a residual error block from a difference between a current block contained in a curre... | 07/12/2011 |
| 7940843 | Method of implementing improved rate control for a multimedia compression and encoding system The rate controller in a digital video encoding system is responsible for allocating a bit budget for video frames to be encoded. The rate controller considers many different factors when determining the frame bit budget. One of the factors considered is the complex... | 05/10/2011 |
| 7894520 | Apparatus and method for generating patterns of forward and backward vectors for frame conversion The computing forward and backward vectors in unique patterns to achieve improved horizontal and vertical detail of the video display while reducing data processing and storage overhead is disclosed. The invention comprises generating a unique pattern of forward and... | 02/22/2011 |
| 7876818 | Image encoding device and image decoding device Multiplexing means of an image encoding device multiplexes object display speed information or image display absolute time information, and an image decoding device performs image processing on the basis of the multiplexed object display speed information or image d... | 01/25/2011 |
| 7873104 | Digital television transmitting system and receiving system and method of processing broadcasting data A digital television (DTV) transmitting system includes a first frame decoder, a second frame decoder, and a frame multiplexer. The first frame decoder forms first enhanced data frames, encodes each data frame for error correction, forms a first super frame by combi... | 01/18/2011 |
| 7869502 | Video coder providing implicit coefficient prediction and scan adaptation for image coding and intra coding of video A predictive video coder performs gradient prediction based on previous blocks of image data. For a new block of image data, the prediction determines a horizontal gradient and a vertical gradient from a block diagonally above the new block (vertically above a previ... | 01/11/2011 |
| 7864838 | Picture encoding device, image decoding device and their methods A weighting factor mode determination unit determines whether to code an interlaced picture in a field mode or a frame mode, based on a value of a flag “AFF” indicating whether or not to switch between the field mode and the frame mode on a block-by-block basis ... | 01/04/2011 |
| 7769083 | Image processing and transmission using high and low compression ratios depending on image change conditions In an image processing method of sequentially loading, compressing, and transmitting images to thereby display the images, there is provided the image processing method capable of preventing the images from degradation while keeping the responsibility until the imag... | 08/03/2010 |
| 7746927 | Robust single-pass variable bit rate encoding An encoding manager facilitates robust single-pass variable bit rate video encoding of a video sequence. Before encoding the video sequence, the encoding manager determines the size of a buffer to use for keeping track of over/under used bits generated during encodi... | 06/29/2010 |
| 7720144 | Signal processing apparatus An image signal processing apparatus for quantizing an inputted moving image signal according to a quantization step so that a code amount of one frame becomes a target code amount, and for variable-length-coding the quantized moving image signal, in which a minimum... | 05/18/2010 |
| 7702013 | Method and arrangement for coding transform coefficients in picture and/or video coders and decoders and a corresponding computer program and a corresponding computer-readable storage medium The present invention describes a method and an arrangement for coding transform coefficients in picture and/or video coders and decoders and a corresponding computer program and a corresponding computer-readable storage medium, which can particularly be employed as... | 04/20/2010 |
| 7675969 | Adaptive rate control for digital video compression A system and method for adaptively controlling the encoded data rate in a data compression system. The system and method sets up alternative encoded bit streams for each segment of data and selects the alternative that would produce the bit rate closest to a predete... | 03/09/2010 |
| 7656949 | Methods and apparatus for performing efficient inverse transform operations According to the present invention, methods and apparatus for performing efficient inverse transform operations are provided. Zero patterns are identified in a block of transform coefficients to derive zero pattern information. Using the zero pattern information, in... | 02/02/2010 |
| 7649939 | Apparatus and method for decoding and computing a discrete cosine transform using a butterfly processor An apparatus to determine the inverse transform of a block of encoded data the block of encoded data comprising a plurality of compressed frequency domain data elements. An input register is configured to receive a predetermined quantity of data elements. At least o... | 01/19/2010 |
