|
Match
|
Document |
Document Title |
|
|
7606429 |
Block-based image compression method and apparatus
A block-based image compression method and encoder/decoder circuit compresses a plurality of pixels having corresponding original color values and luminance values in a block according to different...
|
|
|
7602846 |
Efficiently distributing video using a hybrid network that uses existing infrastructure
A method and apparatus for transporting a video program in compressed form from a source location to a second location. The method comprises receiving at an intermediate location a first compressed...
|
|
|
7596263 |
Image transmitting apparatus, image receiving apparatus, and image transmission system
An image transmitter has a color difference differential calculating unit configured to calculate color difference differential data relating to a difference between a current predicting value...
|
|
|
7583849 |
Lossless image compression with tree coding of magnitude levels
Data values, such as residual values based on a predictive value, are compressed based on a number of significant digits used to represent the data value that is termed a magnitude level. Data...
|
|
|
7580167 |
Determining whether to convert image data in an input color space to an output color space in a transform domain or real domain
Provided are a method, system, and article of manufacture for determining whether to convert image data in an input color space to an output color space in a transform domain or real domain. An...
|
|
|
7580166 |
Converting image data in an input color space to an output color space in a transform domain
Provided are a method, system, and article of manufacture for converting image data in an input color space to an output color space in a transform domain. An input block of coefficients in an...
|
|
|
7570826 |
Method for improving print quality by using lossless image compression (JPEG-LS) technology and system thereof
A method for improving print quality by using lossless image compression (JPEG-LS) technology and system thereof are provided. The detailed characteristics of prediction errors generated during...
|
|
|
7565491 |
Associative matrix methods, systems and computer program products using bit plane representations of selected segments
Associative matrix compression methods, systems, computer program products and data structures compress an association matrix that contains counts that indicate associations among pairs of...
|
|
|
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...
|
|
|
7564861 |
Systems and methods for compressing data
A method for predicting the compression rate of a particular compression algorithm upon a data stream before applying the compression algorithm to the data stream. The method utilizes a predefined...
|
|
|
7561749 |
Apparatus, method, and computer-readable storage medium for lossy and lossless encoding of image data in accordance with an attribute of the image data
Encoded data of a target data amount can be generated by one image input operation in which both lossless encoding and lossy encoding are adopted. For this purpose, a first encoding unit, which...
|
|
|
7558801 |
Distributing limited storage among a collection of media objects
A quality level determining the extent to which each image file is compressed is automatically computed for each image file in a set to ensure that the total size of the compressed image files does...
|
|
|
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...
|
|
|
7539355 |
Data transform method and apparatus
A data transform method comprises a linear transform step of acquiring 16 linear Hadamard transform coefficients by multiplying the 16 pieces of data by an Hadamard transform matrix, an offset step...
|
|
|
7536031 |
Temporal interpolation of a pixel on basis of occlusion detection
A method of determining a value for a particular pixel of a particular image being temporarily located intermediate a first image and a second image is disclosed. The method comprises: computing a...
|
|
|
7532763 |
Method and a device for processing bit symbols generated by a data source; a computer readable medium; a computer program element
A method for processing bit symbols generated by a data source, in particular a video, still image or audio source, comprising the following steps of constructing a plurality of bit-planes from the...
|
|
|
7532358 |
Hardware implemented loss-less page data compressor/decompressor
One embodiment of the invention is directed to a printer that is configured to interleave color plane data. The interleaved data is compressed, thereby forming compressed data having runs, seedrow...
|
|
|
7515761 |
Encoding device and method
It is an object of the present invention to provide an encoding device and an encoding method that allow even faster speeds to be achieved by reducing the waiting time during which variable-length...
|
|
|
7515711 |
Methods and apparatuses for encrypting video and for decrypting video
An encryption technique and a decryption technique that are applied to video data that is encrypted on a predetermined domain of compressed video data are disclosed. For example, JPEG2000...
|
|
|
7508991 |
Method of generating a sequence of matrix factors for a transformation matrix
A method of generating a sequence of matrix factors for a transformation matrix having a plurality of rows and columns using a computer, wherein the transformation matrix stores data values...
|
|
|
7492955 |
Method and apparatus for compression using reversible wavelet transforms and an embedded codestream
A compression and decompression system in which a reversible wavelet filter are used to generates coefficients from input data, such as image data. The reversible wavelet filter is an efficient...
|
|
|
7489825 |
Method and apparatus for creating a multi-resolution framework for improving medical imaging workflow
Method and apparatus for handling data comprises decomposing data into a plurality of resolution levels using an integer wavelet decomposition. A transform module may be used to perform forward and...
|
|
|
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...
|
|
|
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...
|
|
|
7480417 |
System and method for encoding mosaiced image data employing a reversible color transform
A new color space that maps image pixel values in a mosaiced sampling pattern (such as that generated by a Bayer color filter array) into four color channels that correspond to rectangular sampling...
|
|
|
7477793 |
JPEG 2000-like access using the JPM compound document file format
Compound document images are usually high resolution and high quality images that include color, graphics, and images in addition to text. The need for good compression is important for storage and...
|
|
|
7463779 |
Method of compressing digital ink using linear prediction
A method of compressing digital ink input including a sequence of strokes is provided. Each stroke is represented as a series of digital words representing x and y co-ordinates. The compressed...
|
|
|
7454084 |
Method of generating matrix factors for a finite-dimensional linear transform
A method of generating matrix factors for a finite-dimensional linear transform using a computer. The linear transform is represented by data values stored in a linear transformation matrix having...
|
|
|
7430331 |
System and method for incremental and continuous data compression
A data compression system and method for that is capable of detecting and eliminating repeated phrases of variable length within a window of virtually unlimited size.
|
|
|
7424163 |
System and method for lossless image compression
A method of lossless image data compression including the steps of: (a) receiving an image; (b) forming a residual image by differencing adjacent samples of the received image; (c) forming multiple...
|
|
|
7421138 |
Data compression and expansion of a digital information signal
A data compression apparatus receives a digital information signal, determines a probability signal from the digital information signal and at least one previously determined value of the...
|
|
|
7415158 |
Method for determining whether to use a lossy or lossless codec to compress a digital image using a table of non-allowed pixel values
A mechanism for determining whether an image is of lossy-origin or lossless origin is used to maximize the compression ratio of any future compressions and avoid wasting the precious resources...
|
|
|
7412104 |
Optimized lossless data compression methods
A method for losslessly encoding and compressing and decoding original, raw, raster data, and other files by optimizing the results of preprocessing and transformation techniques. Four stages are...
|
|
|
7403665 |
Deblocking method and apparatus using edge flow-directed filter and curvelet transform
A deblocking method and apparatus using an edge flow-directed filter and curvelet transform for deblocking Block Discrete Cosine Transform (BDCT) compressed images. The deblocking method includes:...
|
|
|
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...
|
|
|
7369270 |
Print engine/controller and printhead interface chip incorporating the engine/controller
A print engine/controller suited to use with a drop on demand print head. The print engine/controller works with compressed page data having both JPEG contone image layers and a bi-level image...
|
|
|
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...
|
|
|
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...
|
|
|
7352811 |
Data encoding apparatus and method
A data encoding apparatus operable to encode a plurality of data blocks produces encoded data in accordance with at least one of a selectable target data quantity or a selectable target data...
|
|
|
7346220 |
Method and apparatus for reducing the bandwidth required to transmit image data
The invention is directed to a method and apparatus for reducing the bandwidth required to transmit image data to a display device. It is contemplated that the image data represents a plurality of...
|
|
|
7346215 |
Apparatus and method for capturing a document
An apparatus for capturing a document with a plurality of compression models comprises an image-processing system and an image-capturing system. The image-processing system is for accepting a...
|
|
|
7343037 |
Dynamic, locally-adaptive, lossless palettization of color and grayscale images
The present invention leverages a lossless pixel palettization scheme to locally compress portions of at least a two-dimensional image. This provides a lossless compression means with a compression...
|
|
|
7336840 |
Compression method for binary images
A dynamic compression method and system for digital binary images encoded using a matrix of pixels, each pixel of the matrix of pixels having one of a first and a second color. The method comprises...
|
|
|
7333668 |
Image data compressing apparatus and image data extracting apparatus
An image-data compressing apparatus includes: a start-focus-point setting unit that sets a start-focus point; a draw-point presence/absence setting unit that sets a draw-point presence/absence...
|
|
|
7333544 |
Lossless image encoding/decoding method and apparatus using inter-color plane prediction
A lossless image encoding/decoding method and apparatus. The lossless color image encoding apparatus includes a motion prediction image generator estimating a motion between a previous image and a...
|
|
|
7328283 |
Header compression/decompression apparatus and header compression/decompression method
A header compression/decompression apparatus that improves the throughput of an overall multilayer protocol stack at a network node. In this apparatus, an encoding section 106 compresses...
|
|
|
7324699 |
Extension of two-dimensional variable length coding for image compression
A method and an apparatus to decode a bitstream that includes codewords formed by a method of encoding series of quantized coefficients of a transform of a block of image data. The encoding method...
|
|
|
7321697 |
Block-based, adaptive, lossless image coder
Method and system for lossless compression coding of a digitally represented image. The image is expressed as one or more blocks, each block having a sequence of pixels with binary pixel values....
|
|
|
7317838 |
Compression of bi-level images with explicit representation of ink clusters
A system and method facilitating compression of bi-level images with explicit representation of ink clusters is provided. The present invention includes a cluster shape estimator that analyzes...
|
|
|
7313286 |
Reversible DCT for lossless-lossy compression
A reversible Discrete Cosine Transform (DCT) is described. The reversible DCT may be part of a compressor in a system. The system may include a decompressor with a reversible inverse DCT for...
|