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7346218 |
Method and apparatus for encoding and decoding subband decompositions of signals
An aspect of the present invention includes a method of encoding coefficients of a subband decomposition, to prepare the coefficients for compression. Another aspect of the present invention...
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7340290 |
Magnetic resonance tomography apparatus and method for operating same for image generation
In a method and apparatus for generating an image from magnetic resonance signals, two image matrices generated from magnetic resonance signals are added to or subtracted from one another...
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7336839 |
Digital video compression command priority
A video compression system for compressing a stream of digital video data is disclosed. Known run-length encoding is applied whenever possible to the digital video data stream. When a run is not...
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7333665 |
Optimal filter-bank wavelet modulation
A method for encoding, transmitting, and receiving signals utilizes adaptive wavelet packet trees. A transmitter accepts a binary data stream assumed to be random. At the transmitter the data is...
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7333664 |
Image compression method capable of reducing tile boundary distortion
An image compressing apparatus divides an image into plural tiles, decomposes each tile into plural sub band by frequency conversion, and conducts bit plane encoding of each sub band for each...
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7333663 |
Method and apparatus for efficient entropy coding of images
Method and apparatus for encoding image data is described. In an example, a memory stores bit-planes associated with the image data. Each of the bit-planes is partitioned into data units. A bit...
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7333662 |
Image coding and decoding using intermediate images
A wavelet transform is conducted on an original image (OI). At the moment when the first layer image (WI 1 ) is generated, its LL sub-band component is recorded as an intermediate image (II) in an...
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7330598 |
Image encoding apparatus and method
It is aimed at decreasing process load for arithmetic coding and effectively providing rate control by suppressing image quality degradation. In an image encoding apparatus 1 , a code amount...
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7330597 |
Image compression
A method of image compression with non-redundant complex wavelet transforms applied using a triband decomposition. Variant transforms for real and complex inputs allow for elimination of redundancy.
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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...
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7327893 |
Method for compressing digital images
The invention concerns a method for compressing data, in particular images, by transform, in which method this data is projected onto a base of localized orthogonal or biorthogonal functions, such...
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7321686 |
Image processing apparatus and method for improving the contract of an image
Processing for improving the contrast of an image of interest is executed by an image processing circuit in an X-ray photography apparatus. The image is decomposed into coefficient values of a...
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7319792 |
Image processing device
An image processing device is provided to increase processing speed with a simple configuration and without increasing required memory capacity when editing a compressed image. The image processing...
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7317840 |
Methods for real-time software video/audio compression, transmission, decompression and display
The invention presents new methods of compression, transmission, and decompression of video signals providing increased speed and image quality. Methods based on wavelet transformation with...
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7315655 |
Method of data compression including compression of video data
A data processing system includes a subband decomposition of a source signal by encoding of the significant pyramid-type subband representation. During the encoding process, M-array is used for...
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7315651 |
Image recording apparatus and image data selection method
An image recording apparatus includes means for recording image data in a recording medium; means for obtaining information for determining a data amount reduction remaining force of image data...
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7313284 |
Image coding apparatus, program, storage medium and image coding method
An image coding apparatus compressing and encoding image data, includes a frequency converging unit to perform frequency conversion on the image data; a bit-plane encoding unit to perform bit-plane...
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7310429 |
Unauthorized-alteration detecting method, unauthorized-alteration detecting program, and recording medium having recorded the program
A false alteration detecting method using an electronic watermark method of fragile type by number theoretic transform. A processing section sets parameters P, N, α of number theoretic transform...
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7308147 |
Image processing apparatus, image recording apparatus, image reproducing apparatus, camera system, computer program, and storage medium
An image processing apparatus includes an image compression device which performs a discrete wavelet transform of pixel values for each rectangular portion to produce wavelet coefficients, and...
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7308402 |
Error resistant scalable audio coding partitioned for determining errors
A scalable audio codec processes, quantizes and encodes audio signals into an embedded audio bitstream of bit-planes each having a data unit. The data unit has a beginning refinement bits...
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7302104 |
Smoothing tile boundaries of images encoded and decoded by JPEG 2000
An image processing apparatus and method for decompressing compressed image data is described. In one embodiment, the image processing apparatus decompresses compressed image data that is obtained...
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7302105 |
Moving image coding apparatus, moving image decoding apparatus, and methods therefor
There are provided a moving image coding apparatus and moving image decoding apparatus which allow efficient decoding of an interlaced image from the coded data of a progressive image, and methods...
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7298912 |
Method and apparatus for assigning codeblocks to coders operating in parallel
A method and apparatus for assigning codeblocks to coders operating in parallel is described. In one embodiment, the method comprises decomposing input data into a plurality of code-blocks, and...
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7292255 |
Image data acquisition optimisation
A method of creating an image is disclosed. The image is formed by rendering at least a plurality of graphical objects to be composited according to a first hierarchical structure (eg. 4500 )...
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7289660 |
Image data file management system and method
An image data file management system according to the present invention includes a plurality of inspection sections which acquire an image of a subject and acquire various kinds of inspection...
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7289677 |
Reversible embedded wavelet system implementation
A method and apparatus for performing compression and/or decompression is described. In one embodiment, the present invention comprises a system having a buffer, a wavelet transform unit, and a...
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7289678 |
Image transformation method and apparatus, and storage medium
Image data is separated into two components having elements arranged in a checkered pattern. A dummy setting component is obtained of the signal value occurring at the hole position of the first...
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7280702 |
Methods and apparatus for dynamic transfer of image data
A dynamic transfer syntax efficiently transfers data, including large data images, from a server to at least one client. Source data is transformed into a hierarchical representation. The...
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7280669 |
Digital image watermarking apparatus and method
The present invention relates to a digital image watermarking apparatus and method. Luminance component of a digital image are transformed into coefficients of a frequency domain, and watermark is...
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7280607 |
Ultra wide bandwidth communications method and system
An ultra wide bandwidth, high speed, spread spectrum communications system uses short wavelets of electromagnetic energy to transmit information through objects such as walls or earth. The...
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7272263 |
Image decoding with a simplified process
A decoding unit ( 12 ) decodes an image according to JPEG 2000. A simplifying unit ( 30 ) comprises an automatic transformer ( 32 ) which compares an elapsed time to a time limit at each stage of...
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7269291 |
Method and apparatus for high speed data compression and decompression
A subband processing apparatus useful for wavelet conversion and compression-decompression operations includes a plurality of memories and a plurality of analytic filter banks. The plurality of...
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7263236 |
Method and apparatus for encoding and decoding three-dimensional object data
Provided are methods and apparatuses for encoding and decoding three-dimensional object data, which consists of point texture data, voxel data, or octree data. The method of encoding...
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7263240 |
Method, system, and software for improving signal quality using pyramidal decomposition
A method, system, and software are disclosed for improving the quality of a signal. A base signal is recursively decomposed for a desired number of pyramid levels. The decomposed signal from the...
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7263235 |
Image processing method and apparatus, and computer product
In an image processing apparatus, a pixel data processing section quantizes pieces of pixel data that represent individual pixels, and a pixel data storage section temporarily stores the quantized...
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7260266 |
Image processing method, image processing apparatus, image processing program and image recording apparatus
There are described an image processing method, an image processing apparatus, an image processing program and an image recording apparatus characterized by reduced computation loads and capable of...
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7257266 |
Lossy/lossless region-of-interest image coding
A method and apparatus for encoding digital image data wherein region of interest can be specified either before the encoding process has begun or during the encoding process ( 127 ), such that the...
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7251375 |
Tile boundary artifact removal for arbitrary wavelet filters
A method for processing data is described. In one embodiment, the method includes decompressing a plurality of sets of compressed data, including performing detiling on a first set of compressed...
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7251374 |
System and method for hierarchical analysis of contrast enhanced medical imaging information
A method for analyzing or processing contrast enhanced medical imaging information includes determining whether one or more candidate voxel sets within a Volume of Interest (VOI) exhibit washout...
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7248735 |
Compression and decompression method of image data
A compressing method of image data is carried out by a first process of dividing the image data into a plurality of blocks, a second process of linearly scanning the image data within the block by...
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7245775 |
Image processing apparatus for compositing images
An image processing apparatus for compositing multiple component images into a composite image is proposed. The image processing apparatus includes: a separating unit that separates a codestream...
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7245769 |
Archival of transformed and compressed data
The invention of the present application provides data compression and archival features for data that has previously been transformed and compressed. In a first aspect of the present invention,...
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7245776 |
Image processing apparatus and its method, program and storage medium
An object of this invention is to efficiently attain noise removal. In order to achieve the object, the discrete wavelet transforms of an input image are computed to output wavelet coefficients of...
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7242811 |
Method and apparatus for compressing data and decompressing compressed data
A method and apparatus are provided for compressing data representing a plurality of elements of an array. This data is compressed by generating at least two sets of reduced size data from a...
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7242812 |
Coding and decoding of video data
A novel method for coding and decoding video data and codec thereof are disclosed. The invented method provides an FGS (fine grained scalability) algorithm using bit plane coding technique. While...
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7239424 |
Wavelet-based image processing path
A system is described. In one embodiment, the system comprises an image processing path and a print engine coupled to the image processing path. The image processing path processes an input image...
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7239754 |
Method, apparatus and system for compressing still images in multipurpose compression systems
The present invention teaches a method of compressing still images in a multi-purpose compression system. The current invention teaches preprocessing of the images to a YUV 4:2:0 format and...
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7236639 |
Method and apparatus for coding digital video signal based on grouped zerotree wavelet image coding algorithm
Provided are a method of and an system for coding a grouped zerotree wavelet image having high coding efficiency regardless of the scale of a wavelet transform. According to an embodiment of the...
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7236638 |
Methods and apparatus for reduction of high dimensional data
Data compression techniques particularly applicable to high dimensional data. The invention uses a hierarchical partitioning approach in conjunction with a subspace sampling methodology which is...
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7228316 |
Three-dimensional volumetric geo-spatial querying
A three-dimensional (3D) volumetric geo-spatial querying system. The system can include a 3D GIS. The 3D GIS can include a database of geo-spatial data configured to store geo-spatial data using,...
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