Class 382/247 - Arithmetic coding

Subclass of Class 382 - Image analysis
Definition: Subject matter in which the image data, consisting of a
No. of applications: 19
Last issue date: 12/08/2011

Application No.	Application Title	Issue Date
20110299791	LOSSLESS IMAGE COMPRESSION METHOD A compression method is used for processing an image having a plurality of pixels, in which an image width of the image is W. The compression method includes the steps of selecting N continuous pixels from the image, where N is a positive integer greater than or equal t...	12/08/2011
20100111432	Device and Method for Coding a Transformation Coefficient Block A coding of a block of transformation coefficients wherein a precoder traverses the magnitude bits of a predetermined one of magnitude bit planes in tuples of a plurality of adjacent magnitude bits, and codes predetermined ones of the magnitude bits of the tuples into d...	05/06/2010
20080291062	IMAGE CODING APPARATUS AND METHOD THEREOF An image coding apparatus includes a variable length coding section, an arithmetic coding section and a common buffer memory. The variable length coding section inputs image data and outputs a binarized code sequence applied with variable length coding. The arithmetic c...	11/27/2008
20080267513	Method of CABAC Significance MAP Decoding Suitable for Use on VLIW Data Processors This invention decodes a next significance symbol using a selected context. The invention operates in a loop for each symbol decode for a whole block until the number of decoded map elements reaches a maximum number of coefficients for the block type or a last significa...	10/30/2008
20080240597	METHOD AND APPARATUS FOR REALIZING ARITHMETIC CODING/DECODING A method and apparatus for performing arithmetic encoding/decoding in an arithmetic encoder is disclosed. It comprises: firstly, when performing binary arithmetic encoding/decoding in the arithmetic encoder, an interval update process for arithmetic encoding/decoding to...	10/02/2008
20080219578	METHOD AND APPARATUS FOR CONTEXT ADAPTIVE BINARY ARITHMETIC CODING AND DECODING A method of and apparatus for context adaptive binary arithmetic coding and decoding of a significance map indicating the position of a coefficient that is not zero in a residual block are provided. According to the method and apparatus, a subdivided context is selected...	09/11/2008
20080181303	System and method for video compression A system and method are provided for compressing video frames having a plurality of pixels. The video frames are viewable by an end user on a display. The method can include the operation of receiving a color palette from a key frame of video. Then a color value can be ...	07/31/2008
20080175502	METHOD AND SYSTEM FOR PROVIDING ARITHMETIC CODE NORMALIZATION AND BYTE CONSTRUCTION A method and system are provided for code normalization and byte construction. A plurality of subsets of bits is extracted from a first input. Each of the subsets of bits has a bit width equaling a number of leading zeros from a second input variable. Further, a consecu...	07/24/2008
20080137974	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 pro...	06/12/2008
20080118169	Method for Optimizing Software Implementations of the JPEG2000 Binary Arithmetic Encoder This invention is a JPEG2000 arithmetic encoder with improvements to conventional JPEG2000 encoder implementations. This invention decouples co-efficient bit modeling from arithmetic encoding, eliminates the RENORME while loop through least most bit detection, decouples...	05/22/2008
20080085058	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 effici...	04/10/2008
20080075376	Iterative process with rotated architecture for reduced pipeline dependency In a pipeline machine where, in an iterative process, one or more subsequent functions employ one or more parameters determined by one or more antecedent functions and the one or more subsequent functions generate one or more parameters for the one or more antecedent fu...	03/27/2008
20080069465	Processing data supply method and image processing apparatus When performing arithmetic processing on unprocessed image data with use of a target pixel and reference pixels in its proximity, buffers of a number corresponding to the number of lines required for the arithmetic processing, which are a first buffer and a second buffe...	03/20/2008
20070239813	METHOD AND SYSTEM OF UTILIZING A CONTEXT VECTOR AND METHOD AND SYSTEM OF UTILIZING A CONTEXT VECTOR AND DATABASE FOR LOCATION APPLICATIONS A system (100) and method (300) of using a context vector and database (202) for location applications can include a transceiver (104), a plurality of environmental sensors (114, 116, 118, 120, 121) including at least two location tech...	10/11/2007
20070092150	Coding apparatus and decoding apparatus The coding apparatus according to the present invention is a coding apparatus which codes data regarding a moving picture, and includes: a DCT coefficient advanced-coding unit which performs advanced-coding on multivalued data representing a quantized DCT coefficient or...	04/26/2007
20060210179	Methods and Apparatus for Data Compression A plurality of compression schemes are provided that achieve improved compression ratios. A first embodiment provides for compression of each pixel by one of a plurality of different entropy-based compression schemes based upon a probability cost analysis. A second embo...	09/21/2006
20050232505	Low overhead context initializations 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, (B)...	10/20/2005
20050175250	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 peripheral...	08/11/2005
20050123207	Video frame or picture encoding and decoding 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 pre...	06/09/2005

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Class 382/247 - Arithmetic coding