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| Number | Title | Issue Date |
| 8116377 | Low cost video compression using fast, modified Z-coding of wavelet pyramids An entropy efficient video coder for wavelet pyramids approaches the entropy-limited coding rate of video wavelet pyramids, is fast in both hardware and software implementations, and has low complexity (no multiplies) for use in ASICs. It uses a modified Z-coder to ... | 02/14/2012 |
| 8102918 | Generation of an order-2N transform from an order-N transform Apparatus, systems and techniques based on an integer transform for encoding and decoding video or image signals, including transform of encoding and decoding of image and video signals and generation of an order-2N transform W from an order-N transform T in the fie... | 01/24/2012 |
| RE43091 | Systems and methods for reduced bit-depth processing in video-related data with frequency weighting matrices Embodiments of the present invention comprise systems and methods for processing of data related to video wherein reduced bit depth intermediate calculations are enabled. ... | 01/10/2012 |
| 8059721 | Estimating sample-domain distortion in the transform domain with rounding compensation Techniques and tools are described for compensating for rounding when estimating sample-domain distortion in the transform domain. For example, a video encoder estimates pixel-domain distortion in the transform domain for a block of transform coefficients after comp... | 11/15/2011 |
| 8040953 | Reliability metric generation for trellis-based detection and/or decoding The disclosed technology provides systems and methods for identifying potential error locations, patterns, and likelihood metrics in connection with trellis-based detection/decoding. In one aspect of the invention, the disclosed technology computes soft reliability ... | 10/18/2011 |
| 8036274 | SIMD lapped transform-based digital media encoding/decoding A block transform-based digital media codec achieves faster performance by re-mapping components of the digital media data into vectors or parallel units on which many operations of the transforms can be performed on a parallel or single-instruction, multiple data (... | 10/11/2011 |
| RE42745 | Systems and methods for reduced bit-depth processing in video-related data with frequency weighting matrices Embodiments of the present invention comprise systems and methods for processing of data related to video wherein reduced bit depth intermediate calculations are enabled. ... | 09/27/2011 |
| 7953155 | Methods of selecting an encoding mode Information needed to generate an encoded version of a matrix of j transform coefficients c0 . . . cj−1 representing a block of digital video data is determined by forming a numerical signature σ of the matrix and looking up a value for the information needed in ... | 05/31/2011 |
| 7944974 | Processing or compressing n-dimensional signals with warped wavelet packets and bandelets A method and apparatus for processing or compressing an n-dimensional digital signal by constructing a sparse representation which takes advantage of the signal geometrical regularity. The invention comprises a warped wavelet packet transform which performs a cascad... | 05/17/2011 |
| 7933337 | Prediction of transform coefficients for image compression A block transform-based digital media codec uses a transform coefficient prediction that takes into account a dominant directionality of the digital media data (e.g., an image with strong horizontal or vertical features), and further operates compatibly with a two-s... | 04/26/2011 |
| 7920629 | Context-adaptive VLC video transform coefficients encoding/decoding methods and apparatuses Transform coefficients of sample blocks of a macroblock of a video picture are encoded by adaptively encoding a combination, the number of non-zero coefficients before the trailing one coefficients and the number of trailing one coefficients. The transform coefficie... | 04/05/2011 |
| 7912131 | Selective prediction encoding and decoding methods and devices with ac/dc and advanced video coding prediction There are provided selective prediction encoding and decoding methods and selective prediction encoding and decoding devices. The selective prediction encoding device selects and performs one of an AC/DC prediction encoding method and an intra prediction encoding me... | 03/22/2011 |
| 7907667 | Adaptive filtering based upon boundary strength 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. ... | 03/15/2011 |
| 7894530 | Method and system for dynamic selection of transform size in a video decoder based on signal content In a video processing system, a method and system for dynamic selection of transform size in a video decoder based on signal content are provided. For high profile mode video decoding operations, inverse transform sizes may be selected from a 4×4 or an 8×8 inverse... | 02/22/2011 |
| 7843997 | Context adaptive variable length code decoder for decoding macroblock adaptive field/frame coded video data Described herein is a context adaptive variable length code decoder for decoding macroblock adaptive field/frame coded video data. In one embodiment, there is presented a context adaptive variable length code decoder. The context adaptive variable length code decode... | 11/30/2010 |
| 7804900 | Method for fast SATD estimation A method for determining an encoding cost for a block of video data includes providing an image frame, partitioning the image frame into multiple blocks, obtaining a difference matrix for one of the multiple blocks, performing a part of an FHT (Fast Hadamard Transfo... | 09/28/2010 |
| 7782954 | Scan patterns for progressive video content Tools and techniques for applying scan patterns during encoding and decoding of progressive video are described. For example, a video decoder entropy decodes transform coefficients in a one-dimensional array and scans the transform coefficients into a block accordin... | 08/24/2010 |
| 7742527 | Signal compressing system A multi-scanner scans a signal according to several different patterns. A scanning pattern selector determines which scanning pattern produced the most efficient coding result, for example, for runlength coding, and outputs a coded signal, coded most efficiently, an... | 06/22/2010 |
| 7724824 | Signal compressing system A multi-scanner scans a signal according to several different patterns. A scanning pattern selector determines which scanning pattern produced the most efficient coding result, for example, for runlength coding, and outputs a coded signal, coded most efficiently, an... | 05/25/2010 |
| 7724823 | Signal compressing system A multi-scanner scans a signal according to several different patterns. A scanning pattern selector determines which scanning pattern produced the most efficient coding result, for example, for runlength coding, and outputs a coded signal, coded most efficiently, an... | 05/25/2010 |
| 7688894 | Scan patterns for interlaced video content Tools and techniques for applying scan patterns during encoding and decoding of interlaced video are described. For example, a video decoder scans transform coefficients from a one-dimensional array to a two-dimensional block according to a scan pattern. The block i... | 03/30/2010 |
| 7684489 | Method and apparatus for video compression A unified solution to coding/decoding of different video formats such as 4:2:0, 4:2:2 and 4:4:4 is provided. A method of video coding includes transforming a first m×n macro block of residual chrominance pixel values of moving pictures by a first integer-transform ... | 03/23/2010 |
| 7634008 | Low cost video compression using fast, modified Z-coding of wavelet pyramids An entropy efficient video coder for wavelet pyramids approaches the entropy-limited coding rate of video wavelet pyramids, is fast in both hardware and software implementations, and has low complexity (no multiplies) for use in ASICs. It uses a modified Z-coder to ... | 12/15/2009 |
| 7630439 | Apparatus for converting conversion encoding coefficients using sampling/resolution conversion Conversion encoding coefficients which are accumulated in an input memory and read out from the memory is input into converting unit. Conversion matrix integration unit multiplies a basis matrix of conversion encoding coefficient by, arbitrary interpolation matrix o... | 12/08/2009 |
| 7620108 | Integrated spatial-temporal prediction A method of generating a spatial prediction of a target block of pixels in a target image includes generating a spatial vector for a target block of pixels, using the spatial vector to construct a spatial reference block, and using the spatial reference block to gen... | 11/17/2009 |
| 7580461 | Barbell lifting for wavelet coding A method for encoding motion-compensated video data includes generating, for a current frame, a high-pass wavelet coefficient based on a function of pixels in a temporally adjacent frame. The operations are repeated for multiple pixels in an array of pixels in the c... | 08/25/2009 |
| 7555044 | Frequency coefficient scanning paths for coding digital video content A method and system of transform-based encoding, decoding, and bitstream generation of digital video content is disclosed. The digital video content comprises a stream of pictures, slices, or macroblocks which can each be intra, predicted or bi-predicted pictures. T... | 06/30/2009 |
| 7502415 | Range reduction Techniques and tools are described for decoding video data having samples that have been scaled in the spatial domain. For example, a decoder receives a bit stream that includes coded video data for a current frame. The decoder processes at least one syntax element ... | 03/10/2009 |
| 7496143 | 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 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 are provided, which can particularly be employed as a novel efficient ... | 02/24/2009 |
| 7463688 | Methods and apparatus for removing blocking artifacts of MPEG signals in real-time video reception A method for efficient removal of blocking artifacts in blocks of pixels forming a video image frame, without blurring image edges. First a current pixel is checked to determine whether it is a block boundary pixel. If the current pixel is a boundary pixel, then the... | 12/09/2008 |
| 7440501 | Method and apparatus for controlling loop filtering or post filtering in block based motion compensationed video coding Adjacent blocks are identified in an image. Coding parameters for the adjacent blocks are identified. Deblock filtering between the identified adjacent blocks is skipped if the coding parameters for the identified adjacent blocks are similar and not skipped if the c... | 10/21/2008 |
| 7433405 | Method and system for the error resilient transmission of predictively encoded signals A system for the introduction of controlled correlation among multiple redundant representations of predictively encoded signals while avoiding predictive mismatch at a receiver when any given sub-set of the multiple representations is received. The system embodies ... | 10/07/2008 |
| 7424057 | Data format transcoding apparatus and associated method The present invention provides an apparatus for converting image data, including a block extraction unit extracts a class tap from a composite signal. A pixel-location-mode output unit determines a pixel location mode from the extracted class tap, and outputs it to ... | 09/09/2008 |
| 7421024 | Method for transcoding MPEG encoded streams A system and method of transcoding video data for distribution over a variety of media. A digital data stream is decoded and optionals down sampled to reduce the bit rate of the original stream. The decoded stream is further encoded to further reduce the bit rate of... | 09/02/2008 |
| 7412100 | Apparatus and method for sub-sampling images in a transform domain A method of receiving a bit-stream and extracting data from the bit-stream based on one or more criteria and sub-sampling (for example, filtering and decimating) the extracted data in the transform domain. The method either stores the data for future transmission or... | 08/12/2008 |
| 7400896 | Apparatus and method for estimating a signal power to interference power ratio in a wireless communication system A transmission and reception apparatus and method for use in a wireless communication system, and an apparatus and method for adaptively transmit and receive a signal according to channel state in a wireless communication system. An apparatus for adaptively performi... | 07/15/2008 |
| 7400682 | Systems and methods for reduced bit-depth processing in video-related data with frequency weighting matrices Embodiments of the present invention comprise systems and methods for processing of data related to video wherein reduced bit depth intermediate calculations are enabled. ... | 07/15/2008 |
| 7397857 | Method for transformation-coding full motion image sequences In the case of a method for transformation encoding of moving-image sequences, motion vectors are estimated block-by-block, with which said motion vectors a motion compensation is carried out. The prediction error is transformation-encoded. According to the inventio... | 07/08/2008 |
| 7394940 | Digital video media duplication or transmission quality measurement A system and method for measuring video quality of a video image, wherein the system comprises a source device comprising an original video image; a receiver comprising a received video image; a storage device adapted to store video images from the source device and... | 07/01/2008 |
| 7379500 | Low-complexity 2-power transform for image/video compression To encode image and video data using a transform having low computational complexity and high compression efficiency, all elements of the matrix can be expressed with power-of-2 elements, with a template of the matrix approximating a DCT matrix. ... | 05/27/2008 |
