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7623267 |
Image processing method, apparatus and program
The image processing method for obtaining a quantized image from a multiple tone image, the method comprises: an image dividing step of dividing an input image into a plurality of image blocks of a...
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7602984 |
Adaptive method and system for encoding digital images for the internet
A system and method comprise defining a current rectangular region of the image bitmap, quantifying spectral characteristics of the current rectangular region, dividing the current rectangular...
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7590297 |
Pixel data compression and decompression method and device thereof
The present invention discloses a method for compressing and decompressing pixel data and the device thereof. The method comprises receiving current pixel data from a preprocessor and comparing the...
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7587314 |
Single-codebook vector quantization for multiple-rate applications
This invention relates to a method, a device and a software application product for N-level quantization of vectors, wherein N is selectable prior to said quantization from a set of at least two...
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7557963 |
Label aided copy enhancement
Regions within a scanned document are labeled according to content. These labeled regions allow for particular enhancement and sharpening methods to be applied. The labeled regions may be further...
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7551177 |
Methods and apparatus for retrieving and combining samples of graphics information
Disclosed are methods and apparatus for accomplishing the fetching or sampling of channels of pixels or texels such as neighboring pixels or texels or non-neighboring pixels or texels in a...
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7545992 |
Image processing system and image processing method
This present invention provides an image processing system and image processing method which can reliably transmit image information to a destination without attaching a large file which applies...
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7532765 |
Run length encoded digital image
Methods, apparatus and computer readable medium are described that compress and/or decompress digital images in a lossless or a lossy manner. In some embodiments, a display controller may quantize...
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7529415 |
Adaptive and progressive protection of fixed images encoded in wavelets
A process for secured distribution of fixed numerical images according to a nominal format resulting from numerical encoding in wavelets, represented by a original stream including a packet...
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7519230 |
Background motion vector detection
A selector ( 502 ) for selecting a background motion vector for a pixel in an occlusion region of an image, from a set of motion vectors being computed for the image, comprises: computing means (...
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7502519 |
Systems and methods for image pattern recognition
Systems and methods for image pattern recognition comprise digital image capture and encoding using vector quantization (“VQ”) of the image. A vocabulary of vectors is built by segmenting...
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7444030 |
Image encoding with dynamic buffer-capacity-level-based compression adjustment
Methods, systems, and computer programs for encoding images are described. In one aspect, quantized frequency domain vectors are sequentially generated from a sequence of blocks of the image. Each...
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7436884 |
Method and system for wavelet packet transmission using a best base algorithm
A data compression system and method provides a best base searching method to determine the best orthogonal basis function for wavelet-based, data compression. A processing device may receive data...
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7417772 |
Vector error diffusion
A vector error diffusion (VED) method employable in cycles with respect to a hi-tonal color printing engine which prints bi-tonal color images in a device output color space. The method generally...
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7415392 |
System for separating multiple sound sources from monophonic input with non-negative matrix factor deconvolution
A method and system separates components in individual signals, such as time series data streams. A single sensor acquires concurrently multiple individual signals. Each individual signal is...
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7397962 |
Automatic method of identifying image subregions for reuse during datastream transmission
A method, system, and computer program product are provided, wherein the bandwidth necessary to transmit an item of image data is reduced. When items of image data are identified in a datastream,...
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7391918 |
Fixed, variable and adaptive bit rate data source encoding (compression) method
According to the invention, quantization encoding is conducted using the probability density function of the source, enabling fixed, variable and adaptive rate encoding. To achieve adaptive...
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7391917 |
Image processing method
Stored digital data is searched for on the basis of an input image, difference information is extracted by comparing the retrieved digital data and the input image, and the difference information...
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7388992 |
Digital photographic device for controlling compression parameter of image data and method of deciding compression parameter value of image data
This device includes an image data creator that creates a first type of image data for test shooting and creating a second type of image data for real shooting; a compressor that compresses the...
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7286712 |
Method and apparatus for efficiently encoding chromatic images using non-orthogonal basis functions
A method and apparatus for efficiently encoding images using a set of non-orthogonal basis functions, thereby allowing reduction of file size, shorter transmission time, and improved accuracy. The...
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7286708 |
Method for encoding and serving geospatial or other vector data as images
A system and method are disclosed which include providing a first layer of an image, the first layer including features of the image having locations within the first layer; and providing a second...
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7263204 |
Blind watermarking method by grouping codewords for VQ-quantized images
A blind watermarking method by grouping codewords for VQ-quantized images is disclosed. Especially there is provided a watermark insertion method in which a codebook is divided into three groups...
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7254271 |
Method for encoding and serving geospatial or other vector data as images
A system and method are disclosed which include providing a first layer of an image, the first layer including features of the image having locations within the first layer; and providing a second...
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7251376 |
Data compression engines and real-time wideband compressor for multi-dimensional data
The present invention relates to a real-time wideband compressor for multi-dimensional data. The compressor comprises a plurality of compression engines for simultaneously compressing a plurality...
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7248744 |
Vector quantization of images
A method of compressing an image is described in which digital data signals in a 2-dimensional images are formed into an image data pyramid with a number of layers and each layer is processed to...
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7236634 |
Image encoding of moving pictures
In an encoding method of moving pictures which generates a predictive picture for a current picture based on a reference picture and a motion vector, a macroblock is divided into subblocks. In each...
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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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7174040 |
Fast method for training and evaluating support vector machines with a large set of linear features
A procedure for fast training and evaluation of support vector machines (SVMs) with linear input features of high dimensionality is presented. The linear input features are derived from raw input...
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7146050 |
Facial classification of static images using support vector machines
A procedure for fast training and evaluation image classification systems using support vector machines (SVMs) with linear input features of high dimensionality is presented. The linear input...
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7137005 |
Method of watermarking digital data
A method of introducing a non-perceptional signal (watermark) to a digital media data is disclosed. The method is based on the representation of source digital data using a special matrix,...
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7136533 |
Color image compression with adaptive prediction
Compression and reconstruction of a digital image are both performed by accessing a plurality of color caches corresponding to different chromatic contexts, selecting a color cache for a pixel...
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7116831 |
Chrominance motion vector rounding
Various techniques and tools for chrominance motion vector rounding are described. For example, during motion compensation, a video encoder or decoder converts luminance motion vectors into...
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7106901 |
Method and apparatus for image classification
This invention relates to a method and apparatus for image classification. More particularly, the present invention provides a technique to classify an image as a picture, a graphic or a mixed mode...
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7099517 |
Codebook search methods
A method of compressing an image frame composed of an array of pixels in the form of digital signals comprises a two stage codebook search. In the first stage the pixelated image frame and the...
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7091987 |
Patterning and dot gain improvement for vector error diffusion
A method for processing color-image pixel-data for outputting by a multi-bit (N) color-image output device including the steps of (a) characterizing color-image pixels into N successive, associated...
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7079684 |
Method and apparatus for color quantization of images employing a dynamic color map
A method and apparatus for color quantization of an image employs a dynamic color map. Pixels of a first image are mapped into corresponding color space regions while incrementing counts in records...
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7065252 |
System and method providing improved data compression via wavelet coefficient encoding
A data compression system is provided in accordance with the present invention. The system includes a scanning component which scans at least a portion of a transformed image. The scan is performed...
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7054468 |
Face recognition using kernel fisherfaces
A face recognition system and method project an input face image and a set of reference face images from an input space to a high dimensional feature space in order to obtain more representative...
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7046852 |
Fast image decompression via look up table
A system to decode compressed digital images coded with frequently occurring variable length or other symbols. The disclosed system extracts one or more symbols from the coded compressed image and...
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7046403 |
Image edge color computation
Methods and apparatus implementing techniques for identifying, in a device space, an effective centerscan object color along an edge between an overscan object and a centerscan object, the overscan...
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7043087 |
Image processing system
An image processing system including an image encoder and image decoding system is provided. The image encoder system includes an image decomposer, a block encoder, and an encoded image composer....
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7039251 |
Quantization and compression of information in a direct acyclic graph
A technique wherein the number and position of a quantization parameter node is determined in response to the quantization parameters and a preselected error. The size of scene graph and the...
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7039249 |
Code converter, encoder, image output device and method thereof
Conversion between different codes can be implemented at high speed by a small device. A code input unit inputs a code. A compatible information reference unit refers to compatible information of...
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7039244 |
Fixed-rate block based image compression
An image processing system including an image encoder and image decoding system is provided. The image encoder system includes an image decomposer, a block encoder, and an encoded image composer....
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7024048 |
Method of compressing and/or decompressing a data set using significance mapping
Briefly, in accordance with one embodiment on the invention, a method of compressing a data set includes the following. In multiple passes, each data signal in the data set is categorized into a...
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7020194 |
Apparatus and method for vector descriptor representation and multimedia data retrieval
The present invention relates to an apparatus and a method for vector descriptor representation and multimedia data retrieval, which can quantize a plurality of feature values described by a vector...
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7003039 |
Dictionary generation method for video and image compression
This invention relates to the creation of dictionary functions for the encoding of video signals using matching pursuit compression techniques. After an initial set of reference dictionary images...
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6993202 |
Decoding apparatus, method, and storage medium for inputting and decoding variable-length coded data
A decoding apparatus has: M tables for storing, in correspondence with M types of variable-length code tables, minimum code words or maximum code words of classes of variable-length code words...
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6992671 |
Method and apparatus for compressing Bezier descriptions of letterforms in outline fonts using vector quantization techniques
Vector quantization provides font contour data reduction. Characters are defined in a font collection using segmented outline forms and common references stored to curve segments for similar...
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6975763 |
Shade component removing apparatus and shade component removing method for removing shade in image
An apparatus for removing a shade from an image includes a principle component analyzing unit performing principle component analysis on a set of face images having various types of shades to...
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