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7620258 |
Extended amplitude coding for clustered transform coefficients
Coding quantized transform coefficients as occur in image compression combines a position coding method to code the position of clusters of consecutive non-zero-valued coefficients with an...
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7620252 |
System and method for compressing an image
In a method for compressing an image, a number of non-zero AC coefficients for a component transform and the locations of the non-zero AC coefficients in a transform block are determined. One of a...
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7616687 |
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...
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7609760 |
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...
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7609263 |
Drawing processing apparatus and method for compressing drawing data
A drawing processing apparatus is provided to solve the problems in which pixels of a drawing primitive with sub-pixel information may have an increased amount of data causing a burden on...
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7602986 |
Apparatus and method for compressing binarized images
An apparatus and method for compressing binarized images ( 90 ) comprising receiving a binarized image ( 70 ) and generating a first sequence of first code symbols ( 80 ) representing the binarized...
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7580585 |
Lossless adaptive Golomb/Rice encoding and decoding of integer data using backward-adaptive rules
A method and system of lossless adaptive Golomb/Rice (G/R) encoding of integer data using a novel backward-adaptive technique having novel adaptation rules. The adaptive G/R encoder and decoder...
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7580580 |
Method for compression of two-color anti aliased images
A method for compressing two color anti-aliased images takes advantage of the fact that when two color anti-aliased images are present, it is often the case that the two base colors appear in...
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7570827 |
Method, system and computer program product for optimization of data compression with cost function
A method, system and computer software product for improving rate-distortion performance while remaining faithful to JPEG/MPEG syntax, involving joint optimization of Huffman tables, quantization...
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7565024 |
Run length coding and decoding
Embodiments of the invention provide a run length coding instruction for determining output context and decision values. Pixel coefficient bit values are used after wavelet transformation to...
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7558322 |
Method and apparatus for temporal wavelet compression
A system is described that comprises a method and apparatus for further compressing an already compressed data stream, using a mathematical exclusive-OR computation. The method comprises: receiving...
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7548658 |
Lossless video data compressor with very high data rate
Lossless video data compression is performed in real time at the data rate of incoming real time video data in a process employing a minimum number of computational steps for each video pixel. A...
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7545987 |
Image processing apparatus and image processing method
When a plurality of image data are to be compressed, an image correlation information extraction unit extracts respective image correlation information of image data, using first image data as...
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7539348 |
Digital map shape vector encoding method and position information transfer method
It is an object to provide a method of coding the position information of a digital map in a small data volume by utilizing a compressing and coding technique. In a coding method of coding data...
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7526134 |
Image processing apparatus, program, recording medium, and data decompression method
An image processing apparatus includes a decompressing unit decompressing image data having a first data compression format, an obtaining unit obtaining a second data compression format that is...
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7522778 |
Image decoding technique for suppressing tile boundary distortion
An image decoding device for decoding a hierarchically encoded compressed code obtained by dividing an image into a plurality of tiles and performing discrete wavelet transform on the pixel values...
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7522775 |
Image coding and decoding methods, image coding and decoding apparatuses, and recording media for image coding and decoding programs
In an image coding method of the present invention, after a process such as DCT is performed to digital image data, quantization process is performed, and then, to resultant quantized transform...
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7519229 |
Video coding system providing separate coding chains for dynamically selected small-size or full-size playback
Embodiments of the present invention provide a coding system that codes data according to a pair of coding chains. A first coding chain generates coded video data that can be decoded by itself to...
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7519119 |
Method and apparatus of converting a series of data words into a modulated signal
The present invention relates to method and apparatus of converting a series of data words into modulated signals. This method divides a data word, which a sync signal is to be added in front or...
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7508992 |
Image-processing apparatus for compressing binary-format image data
An apparatus for image processing is disclosed. The apparatus is for reducing one or more runlengths by converting binary-format image data for each of black and white runlengths in one direction...
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7499596 |
Amplitude coding for clustered transform coefficients
A method, apparatus, and a computer readable hardware storage medium with instructions to encode a series of quantized transform coefficients. The method includes identifying runs of one or more...
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7499595 |
Joint amplitude and position coding for photographic image and video coding
A method, apparatus, and carrier medium to encode a series of quantized transform coefficients. The method includes identifying clusters of at least one non-zero-valued coefficients, and for each...
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7492957 |
Using run length encoding to detect target images
An image detection manager uses run length encoding to detect a target image in a candidate image. The image detection manager extracts run length encoding data from the candidate image. The image...
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7492956 |
Video coding using multi-dimensional amplitude coding and 2-D non-zero/zero cluster position coding
A method, apparatus, and computer readable medium to encode a series of quantized transform coefficients. The method includes identifying events that each includes a run of one or more...
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7486834 |
System and method for dynamically shifting error diffusion data
Error diffusion is performed using a Floyd-Steinberg-like approach. A integer-representation of a running error is compressed by storing only its most significant bits and returning any remainder...
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7486828 |
Method and apparatus for processing an image data for output
A technique of processing an image data for output on a digital image device that compresses ( 164 ) a portion of a received image data to a data frame ( 110 ) according to a predefined size that...
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7483586 |
Image compression apparatus, image expansion apparatus, image forming apparatus, image compression method, image expansion method and storage medium
An image compression apparatus compresses image data by carrying out a parallel processing for every image pattern made up of a plurality of bits. The apparatus includes a first unit for obtaining...
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7483585 |
Image compression using variable bit size run length encoding
Variable bit size run length encoding (“RLE”) is used to encode uninterrupted runs of adjacent first symbols and adjacent second symbols within a sequence that may represent an image. The...
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7483584 |
Extended hybrid variable length coding of transform coefficients for video compression
A method and an apparatus of image compression, and a memory to store a data structure for compression. The method includes, for an ordered series of quantized coefficients of a transform of an...
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7483581 |
Apparatus and method for encoding digital image data in a lossless manner
A method of losslessly compressing and encoding signals representing image information is claimed. A lossy compressed data file and a residual compressed data file are generated. When the lossy...
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7480418 |
Method for processing a digital image and image representation format
An image representation format for representing a digital image comprises: image information stored as a bitstream representing sequential image blocks, each block comprising one or more...
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7471841 |
Adaptive breakpoint for hybrid variable length coding
A method, a carrier medium, and an apparatus to process a plurality of ordered series of quantized coefficients of a block of an image to reduce the amount of data used to represent the image. The...
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7471840 |
Two-dimensional variable length coding of runs of zero and non-zero transform coefficients for image compression
A method, apparatus, and carrier medium to encode a series of quantized transform coefficients. The method includes identifying events that each includes a run of zero-valued coefficients preceding...
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7463789 |
Image-processing device, its method, its program and recording medium storing the program
An image-processing device ( 130 ) includes a data access section ( 131 ) that reads composite image data ( 10 ) having one data structure in which a plurality of image data are combined, and a...
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7457363 |
Method and apparatus for multi-threaded variable length coding
A device including a variable length coding unit that includes an input unit connected to a stream switching unit, and an output unit connected to the stream switching unit. The input unit to...
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7454076 |
Hybrid variable length coding method for low bit rate video coding
A method and an apparatus of image compression, and a memory to store a data structure for compression. The method includes, for an ordered series of quantized coefficients of a transform of an...
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7454073 |
Video compression using multiple variable length coding processes for multiple classes of transform coefficient blocks
A method and apparatus to variable length code an ordered series of quantized transform coefficients of an image block. The method classifies the series into one of a plurality of classes. Each...
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7450774 |
Method of changing bit rate by changing codeword of compressed image bit stream
An apparatus and a method of changing a bit rate of a compressed image bit stream by changing a codeword so as to easily change the bit rate and reduce a changing loss. The apparatus for changing a...
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7447361 |
System and method for generating a custom font
A processor is operable to identify characters in a file that represents a scanned image, and generate a font that includes the identified characters.
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7430064 |
Rotation dependent halftone rendering in scanning
A method and system for rotation-dependent halftone rendering. An image input is received from a scanning system or other source, the received image being either a contone image or an...
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7409094 |
Methods and systems for packetizing encoded data
Systems and methods thereof for processing data are described. First information associated with encoded data is parsed. The first information describes an ordering of the encoded data. The encoded...
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7400329 |
Graphics images system and method
A system for 3-dimensional gaming on a mobile handset is provided. The system includes a converter component operable to convert a pre-rendered 3-dimensional graphic image having 24-bit color...
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7394942 |
Variable length coding method and apparatus for video compression
A method and an apparatus to encode a series of quantized coefficients of a transform of a block of image data. The method includes forming modes for each encountered non-zero amplitude and forming...
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7386176 |
Image sending apparatus and image receiving apparatus for sending and receiving code sequence data
An image sending apparatus is provided, in which the image sending apparatus comprises an analyzing syntax of code sequence data, a generation unit generating another code sequence data from the...
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7373008 |
Grayscale and binary image data compression
Arrangements and procedures for compressing grayscale, binary and bi-level image data are disclosed. With respect to compressing binary and bi-level image data, individual byte image data values...
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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...
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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...
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7359615 |
Method and device for ensuring storage time for digital broadcast
When a digitized broadcast is recorded in a storage medium, a required capacity of the storage medium is firstly calculated on the basis of a bit-rate of digitized broadcast data and a recording...
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7359557 |
Method of and apparatus for encoding, method of and apparatus for decoding, and image forming apparatus
With an encoding section 301 in an encoding apparatus, an image reading section 310 sequentially inputs binary signals by a predetermined bit length; a run counter in a run length processing...
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7343043 |
Image compression apparatus, method and recording medium storing an image compression program
An image compression apparatus and method, and a carrier wave encoded with a computer readable control program having instructions for use by a computer, perform an image compression process. A...
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