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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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7245772 |
Computer system and method for decompressing video data
A system for decompressing a bit stream of compressed data representing a plurality of image blocks. This includes a two-step method of processing both a DC code and a plurality of AC codes. With...
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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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7242814 |
Signal encoding method and apparatus and decoding method and apparatus
A method of and an apparatus for encoding and decoding using transformation bases of a yet higher efficiency. In a method for encoding an object signal in compliance with a transformation rule, a...
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7242713 |
2-D transforms for image and video coding
A set of one and two-dimensional transforms is constructed subject to certain range limited constraints to provide a computationally efficient transform implementation, such as for use in image and...
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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....
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7236530 |
Variable-length decoding apparatus and decoding method
Encoded data using reversible variable length code words is input to a forward decoder ( 123 ) to be decoded in the forward direction. When an error is detected in the encoded data in the forward...
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7231095 |
Spread spectrum signal demodulation method and apparatus
The present invention relates to a spread spectrum signal demodulating method whereby spread-code synchronous acquisition and carrier synchronous acquisition are performed using FFT at high speed,...
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7231089 |
Image encoding/decoding method, apparatus thereof and recording medium in which program therefor is recorded
In an image decoding method, a DC image, corresponding to each block mean value per B pixel from encoding data with respect to the HVQ system, is reproduced. A part of the DC image is made a DC...
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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...
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7227898 |
Digital signal conversion method and digital signal conversion device
An inputted digital signal of a first format (DV video signal) is restored to a variable-length code by having its framing cancelled by a de-framing section 11 , then decoded by a variable-length...
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7227999 |
Printing system application using J2K
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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7224819 |
Integrating digital watermarks in multimedia content
A method for tracking media signals in multimedia content is provided by uniquely identifying the multimedia content with a digital watermark identifier. A video channel is preferably embedded with...
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7224730 |
Systems and methods for decoding redundant motion vectors in compressed video bitstreams
The invention is related to methods and apparatus that decode robustly encoded video bitstreams. One embodiment of a decoder can advantageously reconstruct a predictive-coded video object plane...
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7224841 |
Method and apparatus for accelerating variable length coding (VLC) decoding in the process of inverse discrete cosine transformation (IDCT)
In some embodiments of the present invention, frequently occurring inverse linear transform results are calculated and stored in look-up-tables. In real time, incoming blocks of linear transform...
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7224838 |
Method and apparatus for recovery of encoded data using central value
The present invention provides a method for comprising data by determining a central value that is greater than the minimum value and less than the maximum value of the range of data. In one...
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7224842 |
Object recognition apparatus and object recognition method
An object recognition apparatus comprises a moving picture decoding section which decodes data obtained by encoding a moving picture. A background image producing section produces a background...
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7224846 |
Image coding apparatus and method, and program and recording medium
An bit-plane coding pass generator is provided in which for SP-pass processing quantization coefficient of each code block divided into bit planes, “significant (S)” or “non-significant...
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7224840 |
Method, system, and program for error recovery while decoding compressed data
Provided are a method, system, and program for decoding compressed data. Compressed data is received and decoded. An error is detected while decoding a first location in the compressed data. A...
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7221709 |
Information processing apparatus and method, and program storage medium
An inputted digital signal of a first format (DV video signal) is restored to a variable-length code by having its framing cancelled by a de-framing section 11 , then decoded by a variable-length...
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7221802 |
Method and device for secure transmission of JPEG encoded images
A process for distributing digital still images according to a nominal format, where each image is broken into blocks and macroblocks that depend upon each other by correlation coefficients...
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7218786 |
Method of compressing and decompressing images
A method of compressing and decompressing images is disclosed for applications in compression and decompression chips with the JBIG standard. The pipeline of computing a pixel is divided into three...
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7215819 |
Method and device for processing an encoded digital signal
A method of processing an encoded digital signal comprising a set of data obtained by encoding a set of original data representing physical quantities, and a set of information representing the...
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7215707 |
Optimal scanning method for transform coefficients in coding/decoding of image and video
An optimal scanning method for coding/decoding an image signal is provided. In a method of coding an image signal through a discrete cosine transform, at least one is selected among a plurality of...
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7215817 |
System and method for digital watermarking in a calibrated printing path
What is disclosed is a decoding method for retrieving information bits encoded in a printed image comprising the steps of first receiving an input electronic image as a scanned version of the...
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7212570 |
Video converter and computer program for executing said video converter
A video converter for converting a coding format of a great deal of video contents has three kinds of conversion modes including a conversion mode for performing conversion in two steps in...
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7209597 |
Image processing apparatus for reducing tile distortion
An image processing apparatus reduces a distortion that occurs at a tile boundary (tile distortion) when an image is compressed or expanded on a tile-by-tile basis. It is equipped with a tone jump...
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7206459 |
Enhancement of compressed images
A method and apparatus for enhancing compressed images is described. In one embodiment, the method comprises characterizing quantization noise in reconstructed low pass coefficients generated in...
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7203234 |
Method of directional filtering for post-processing compressed video
A method of post-processing decompressed images includes identification of the direction of an image edge in a pixel block of the image and filtering applied along the boundary of the block in a...
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7203370 |
Image processing apparatus which records images in a compressed state and outputs compressed images in an expanded state
An image signal processing apparatus includes two JPEG codecs. A plurality of frames of image signals periodically input from a multiplexer are individually compressed by the two JPEG codecs, and...
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7203235 |
Architecture and method for fine granularity scalable video coding
A robust fine granularity scalability video encoding includes a base layer encoder and an enhancement layer encoder in which motion compensated difference images are generated by comparing an...
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7203236 |
Moving picture reproducing device and method of reproducing a moving picture
A moving picture reproducing device includes a compressed data buffer, a display size obtaining unit, a resolution selecting unit, four kinds of resolution decoding units, and a frame data buffer....
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7200272 |
Image processing method storing input encoded data into a memory
In an image processing method and apparatus for decoding and displaying input encoded data, the upper limit value of the data size to be stored in a memory that stores fragmented encoded data which...
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RE39541 |
Methods and apparatuses for recovering compressed motion picture
The present invention relates to a method for recovering a compressed image for an image processing technique and an apparatus therefor. In the present invention, a cost function is defined in...
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7197190 |
Method for digital data compression
A method of compressing data is disclosed including applying a transform to the data to produce transformed data having a series of parts; entropy encoding the magnitude of the transformed data of...
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7190284 |
Selective lossless, lossy, or no compression of data based on address range, data type, and/or requesting agent
An integrated memory controller (IMC) including MemoryF/X Technology which includes data compression and decompression engines for improved performance. The memory controller (IMC) of the present...
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7190838 |
Method and device for processing a coded digital signal
A method of processing a coded digital signal including a set of information representing the digital signal, zones of the signal, and parameters used during the coding. The method includes, after...
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7187802 |
Method and apparatus for progressive JPEG image decoding
A method and an apparatus for decoding a progressive joint photographic experts group (JPEG) bit stream as image data indicative of an image are disclosed. The method includes the following steps....
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7184599 |
Image compression in retained-mode renderer
A method ( 200 ) and apparatus ( 100 ) for compressing an image is disclosed. The image is provided as one or more runs of pixels on a scanline basis. The runs of pixels represent one or more...
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7181078 |
Apparatus and method for compressing/decompressing images in a mobile communication terminal
An apparatus and method for compressing/decompressing an image in a mobile communication terminal. The apparatus and method compresses or decompresses image data by setting up an optimal threshold....
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7177476 |
Method of decoding data encoded in a monochrome medium
A method for decoding data that has been encoded in a monochrome medium utilizing the capability of the medium for grayscale resolution. A document is processed to provide an image in electronic...
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7173971 |
Trailing artifact avoidance system and method
A system and method is provided to avoid or otherwise reduce luminance and/or chrominance trailing artifacts in block-based hybrid video coders using multiple block sizes and shapes. The proposed...
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7171051 |
Method and apparatus for performing fixed blocksize compression for texture mapping
Method and apparatus for providing texture and/or alpha compression. In one embodiment, the present invention incorporates stored palettes, e.g., a luminance palette and a chrominance palette such...
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7170941 |
Temporal compression
The present invention discloses a temporal compressor and decompressor for sequences of images. The compressor includes an interface for receiving the sequence of images. A spatial compressor...
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7171050 |
System on chip processor for multimedia devices
A system on chip processor for a multimedia device includes: a pre-processing circuit to convert an external image signal into a compressed input signal for compressing; an encoder/decoder circuit...
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7167520 |
Transcoder
A transcoder for resizing video data and outputting the resized video data to a reproduction apparatus. The reproduction apparatus reproduces the resized video data by repeating a display period...
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7167263 |
Multifunction peripheral apparatus, external controller for the same, and their control method
In an external print controller added to an MFP, bit map data obtained by analyzing and developing received PDL data is once compressed and, subsequently, transferred via a PCI bus. In the...
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7167259 |
System and method for merging line work objects using tokenization and selective compression
A method, apparatus, and information bearing medium for merging display items in encoded form involve providing display items to be merged in an encoded format, such as a run length encoded format...
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7167521 |
Video encoding apparatus and video decoding apparatus
An alpha-map encoding apparatus includes a first down-sampling circuit ( 21 ) for down-sampling an alpha-map signal which represents the shape of an object and the position in the frame of the...
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7167589 |
Disk read technique
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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