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Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7974484 | JBIG coding and decoding system A Joint Bi-level Image Group (JBIG) coding and decoding system, which provides a series of fully serial and parallel computational combinations in arithmetic coding and decoding to thereby reduce the complexity of JBIG arithmetic encoder and decoder and increase the... | 07/05/2011 |
| 7903894 | Color image coding using inter-color correlation Described is an image compression technology by which a coefficient representative of a chrominance component corresponding to an (x, y) coordinate pair is coded into a symbol, along with plurality of context events associated with that symbol, to facilitate more ef... | 03/08/2011 |
| 7822283 | System and method for arithmetic encoding and decoding An arithmetic encoder is provided for converting an event sequence comprised of a plurality of events to an information sequence comprised of at least one information piece, and includes a core engine for receiving an event of the event sequence, and a probability e... | 10/26/2010 |
| 7463781 | Low overhead context intializations for arithmetic video codecs A method for controlling an arithmetic codec context is disclosed. The method may include the steps of (A) reading a current value indicating one of a first condition and a second condition corresponding to a current context of a plurality of predetermined contexts,... | 12/09/2008 |
| 7433531 | Image pickup apparatus and method The present invention relates to an image capturing apparatus and method in which the image recording time is reduced and the memory capacity required for compression is also reduced. A number-of-bytes calculation unit 302 determines the number of bytes after... | 10/07/2008 |
| 7421137 | Block entropy coding in embedded block coding with optimized truncation image compression Embedded block entropy coding with optimized truncation is useful for image compression schemes in conjunction, for example, with a Wavelet transform, so as to form a bit-stream which can be stored or transmitted with increased efficiency. In the arithmetic coding p... | 09/02/2008 |
| 7418146 | Image decoding apparatus Coded data are inputted from a stream analyzing unit to an entropy decoding unit. A group of peripheral information registers stores peripheral information on a target pixel for estimating a context used for arithmetic decoding of the coded data. Based on the periph... | 08/26/2008 |
| RE40469 | Apparatus and method for interpolating binary pictures, using context probability table A context probable table of context template is employed in order to interpolate binary picture information. The context template for respective pixels making up the binary picture information is made, and probabilities for the interior of an object and the exterior... | 08/26/2008 |
| 7408487 | Method and apparatus for CABAC-based encoding having high compression ratio using improved context model selection and method and apparatus for CABAC-based decoding A method and an apparatus are provided for context-based adaptive binary arithmetic coding (CABAC) based encoding or decoding using improved selection of a context model for a high compression ratio. The method of CABAC-based encoding includes selecting a first cont... | 08/05/2008 |
| 7408488 | Digital signal coding apparatus, digital signal decoding apparatus, digital signal arithmetic coding method and digital signal arithmetic decoding method A digital signal coding apparatus and method makes a compression coding of a digital signal. The coding apparatus and method codes the digital signal by determining a context model to be used for each type of coding data among a plurality of context models. When the... | 08/05/2008 |
| 7388526 | Digital signal coding apparatus, digital signal decoding apparatus, digital signal arithmetic coding method and digital signal arithmetic decoding method A digital decoding apparatus and method receives a compression-coded digital signal in predetermined units and decodes the received compression-coded digital signal in the predetermined units. The compressed received digital signal is coded in the predetermined unit... | 06/17/2008 |
| 7379608 | Arithmetic coding for transforming video and picture data units A method for encoding a video frame or picture comprises dividing up the video frame or the picture in portions of a first type associated with a first scanning pattern, and portions of a second type associated with a second scanning pattern. Data corresponding to a... | 05/27/2008 |
| 7373005 | Compression system for integrated sensor devices An imaging system incorporating adaptive compression which includes determining linear predictive differential residuals from an imager array pixel row. The differential residuals are classified into categories, each category having a range of differential residuals... | 05/13/2008 |
| 7369066 | Efficient 8×8 CABAC residual block transcode system A circuit generally including a first module, a second module and a third module is disclosed. The first module may be configured to (i) generate a plurality of parsed residual blocks by parsing a plurality of 4×4 CAVLC (context-based adaptive variable length codin... | 05/06/2008 |
| 7365659 | Method of context adaptive binary arithmetic coding and coding apparatus using the same A method of context adaptive binary arithmetic coding (CABAC) of a sequence of data slices permits for quick initialization of context models. The data slices include a plurality of binarized symbols with context individual values having one or more bins of the bina... | 04/29/2008 |
| 7339507 | Device for video decoding A device for video decoding is disclosed. It includes at least a pipeline scheduler, a decoding core, a segmented context memory and a context cache. The pipeline scheduler and the decoding core could decrease the time taken in a code-decoding period. The segmented ... | 03/04/2008 |
| 7330139 | Scalable audio data arithmetic decoding method, medium, and apparatus, and method, medium, and apparatus truncating audio data bitstream A scalable audio data arithmetic decoding method, medium, and apparatus, and a method, medium, and apparatus truncating an audio data bitstream. The arithmetic decoding method of decoding a scalable arithmetic coded symbol may include arithmetic decoding of a symbol... | 02/12/2008 |
| 7327894 | Image compression A method of image compression with wavelet transforms applied locally rather than globally by image component partitioning into independently transformed macroblocks plus overlapping data for filter length compensation. ... | 02/05/2008 |
| 7321323 | Digital signal coding apparatus, digital signal decoding apparatus, digital signal arithmetic coding method and digital signal arithmetic decoding method In a bit stream syntax containing compressed video slice data for compressed video data of a slice structure, a slice header for compressed video slice data has attached thereto a slice start code, a register reset flag indicating whether a register value, which des... | 01/22/2008 |
| 7321371 | Data conversion device The data conversion device of the present invention includes: a coding section for replacing (i) one or more components constituting the display data of each pixel and other one or more components constituting display data of a pixel existing around that pixel on a ... | 01/22/2008 |
| 7321694 | Image forming apparatus and image forming method An image forming apparatus having a reading unit which reads image information on an original, a first compression unit which compresses the image information into compressed image information, a first encoding unit which encodes the compressed image information, an... | 01/22/2008 |
| 7305138 | Image encoding apparatus, image encoding method and program An image encoding apparatus encodes an image signal according to a JPEG2000 standard. A wavelet converter in the image encoding apparatus acquires a plurality of conversion coefficients by performing wavelet conversion on the image signal. A modeling unit in the ima... | 12/04/2007 |
| 7304590 | Arithmetic decoding apparatus and method An arithmetic decoding method and apparatus are provided. The apparatus includes an arithmetic decoding apparatus comprising an arithmetic decoding unit determining a range of a most probable symbol and a range of a least probable symbol required to decode a current... | 12/04/2007 |
| 7301485 | Decoding device or encoding device having intermediate buffer interposed between an arithmetic code decoder or encoder and a reverse binarization device or binarization device In the decoder of binary arithmetic code of the present invention, the decoding and reverse binarization of arithmetic code are separated and a large intermediate buffer is interposed. The decoding of arithmetic code is first carried out at the time of input of a st... | 11/27/2007 |
| 7298303 | Signal encoding method, signal decoding method, signal encoding apparatus, signal decoding apparatus, signal encoding program, and signal decoding program A signal encoding method according to the present invention is a signal encoding method of dividing a coding target signal as an object of coding into partition units and performing arithmetic coding based on probability-related information in the partition units, w... | 11/20/2007 |
| 7292732 | Image compression/decompression apparatus and method An image compression apparatus includes an image transformer for transforming each pixel of an image data into binary bit array. The bits of a same bit plane are located in a same column. A context modeler, coupled to the image transformer, includes a context model ... | 11/06/2007 |
| 7286710 | Coding of a syntax element contained in a pre-coded video signal A method for encoding a syntax element contained in a precoded video signal into a coded bit stream, the precoded video signal representing at least one video frame, the syntax element being associated with a predetermined portion of the video frame and being indica... | 10/23/2007 |
| 7283073 | System for speeding up the arithmetic coding processing and method thereof A system for speeding up the arithmetic coding processing and method thereof is used in a calculating method in which when the input data are two successive same pixel values and the context values (CX) thereof. The output interval size A and base C are determined b... | 10/16/2007 |
| 7280110 | Display device and method of designing display device A display device having a liquid crystal display element (30) transmitting light projected from a light source to an watching point side, and including pixels (31) forming a first image region and a second image region, and an image separation filter (... | 10/09/2007 |
| 7266247 | Image coding method and apparatus using spatial predictive coding of chrominance and image decoding method and apparatus A method and apparatus for coding a chrominance component of an intra-image using spatial predictive coding and a method and apparatus for decoding the coded chrominance component are provided. The coding apparatus includes a variation calculator, which calculates a... | 09/04/2007 |
| 7265766 | Method and system for adaptive bit depth enhancement for displays According to one embodiment, a method for compensating for inadequate bit resolution in a light processing system includes receiving a plurality of values each indicative of an intensity level for a pixel to be displayed. Each of the values is represented by a plura... | 09/04/2007 |
| 7262722 | Hardware-based CABAC decoder with parallel binary arithmetic decoding A binary arithmetic decoding apparatus includes first, second and third pairs of look-up tables and first, second and third multiplexers. The first multiplexer selects between the respective outputs of the two look-up tables of the first pair of look-up tables. The ... | 08/28/2007 |
| 7260735 | Method and system for maintaining a running count of events updated by two asynchronous processes A method of maintaining a count of active events of a process is provided by a start counter and a complete counter. The start counter maintains a first count of start events and may be operated upon only by the start event of the process. The complete counter maint... | 08/21/2007 |
| 7257264 | Image processing apparatus and method for compression-encoding image area information From inputted multilevel image data it is generated, for each pixel, image area information constituted by an image area component indicating whether the pixel exists in a character•line drawing area or halftone area and an image area component indicating whether ... | 08/14/2007 |
| 7254273 | Data coding method and device, and data coding program A data compression method uses a template. In the template, the template optimizing is performed by an artificial intelligent technique (such as a genetic algorithm). The artificial intelligent techniqiue is applied to segments defined by diving input data into unif... | 08/07/2007 |
| 7248190 | Variable-length encoding method, variable-length decoding method, storage medium, variable-length encoding device, variable-length decoding device, and bit stream The present invention correctly decodes data encoded with a variable-length encoding method that improves the compression ratio. The variable-length encoding method encodes a unit data composed of a plurality of sub-data while referencing a parameter table, and incl... | 07/24/2007 |
| 7245235 | Lossless adaptive encoding and decoding of integer data A method and system of lossless compression of integer data using a novel backward-adaptive technique. The adaptive Run-Length and Golomb/Rice (RLGR) encoder and decoder (codec) and method switches between a Golomb/Rice (G/R) encoder mode only and using the G/R enco... | 07/17/2007 |
| 7236633 | Data compression and decompression techniques for programmable circuits The present invention provides techniques for compressing and decompressing data in a programmable circuit. Programmable circuits can be configured according to user design by configuration data. Configuration data is compressed using a compression algorithm to save... | 06/26/2007 |
| 7233619 | Variable general purpose compression for video images (ZLN) Methods, medium, and machines which compress, enhance, encode, transmit, decompress and display digital video images in real time. Real time compression is achieved by sub-sampling each frame of a video signal, filtering the pixel values, and encoding. Real time tra... | 06/19/2007 |
| 7230616 | Bi-level iso-surface compression Methods, structures and systems for encoding and decoding isosurface data. An encoder process takes volume data and an isolevel as input and produces compressed isosurface data as output. The compressed isosurface data produced by an encoder process is composed of a... | 06/12/2007 |
