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Document Title |
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7636489 |
Blur computation algorithm
Disclosed herein is an improved blur computation algorithm. The proposed algorithm accomplishes a blur of an image using fragment programs on a GPU. Alternatively, the blur may be computed on a CPU...
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7599570 |
Multiscale sharpening and smoothing with wavelets
A method and apparatus for processing image data are described. In one embodiment, a method of processing image data comprises decomposing the image data into multiple decomposition levels by...
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7593588 |
Edge preservation type image processing device
An edge preservation type of recursive filter 12 outputs an unsharpened image (i.e., low-frequency components) which is smoothed while preserving an edge of an input image in at least one...
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7587091 |
De-interlacing using decoder parameters
Locations of reference blocks of pixels of decoded interlaced video reference fields decoded from a compressed stream of video data are computed using motion vectors decoded from the same stream of...
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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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7536561 |
Method and apparatus for improved information transactions
A method and system for making information available of a computer system and compensating information owners or creators for access to said information. In various aspects, the invention provides...
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7505841 |
Vision-based occupant classification method and system for controlling airbag deployment in a vehicle restraint system
A vehicle restraint system has a vision-based occupant classification system for control of airbag deployment during a crash scenario. The classification system utilizes two imaging sensors which...
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7433084 |
Digital de-screening technique for scanned documents
A method and system for de-screening an image signal utilizing a bank of filters to provide several increasingly blurred versions of the original image signal is disclosed. At any given time, only...
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7412091 |
System and method for registration of cubic fisheye hemispherical images
Systems and methods for registering hemispheric images obtained using a fisheye lens for panoramic viewing, relating to spatial alignment and colour balancing of complement half-side images derived...
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7408986 |
Increasing motion smoothness using frame interpolation with motion analysis
Techniques and tools for video frame interpolation and motion analysis are described. The techniques and tools may be implemented separately or in combination in software and/or hardware devices...
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7409092 |
Method and apparatus for the surveillance of objects in images
Object detection and tracking operations on images that may be performed independently are presented. A detection module receives images, extracts edges in horizontal and vertical directions, and...
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7397964 |
Gaussian blur approximation suitable for GPU
A Gaussian blur approximation is applied to an image by repeated down-sampling operations followed by an up-sample operation. By using a truncated Gaussian filter as the down-sample filter, the...
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7379561 |
Method and system for differentially and regularly modifying a digital image by pixel
Th invention relates to a method and system for modifying a digital image ( 100 ) consisting of pixels. Said digital image is divided into areas ( 103 ). At least one area value is assigned to each...
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7375856 |
Halftone screen frequency and magnitude estimation for digital descreening of documents
An efficient method and system for eliminating halftone screens from scanned documents while preserving the quality and sharpness of text and line-art is disclosed. The method and system utilizes...
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7355757 |
Fast edge reconstruction with upscaling for pulse width modulation rendering
A selected antialiasing technique is applied to non-labeled gray-scale or color image data by deconstructing an image into a set of binary images, applying the antialiasing method to each binary...
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7356197 |
Variable tap filter architecture for image processing
An embodiment of the present invention is an apparatus to filter two-dimensional (2-D) data. A first filter processes two-dimensional (2-D) data in a block of pixels in a first dimension for a...
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7268835 |
Device and method for noise reduction of a video signal
The disclosure relates to a device and to a method for noise reduction of a video signal. The device is comprised of the following components. A motion-compensated interpolation means, a recursive...
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7268790 |
Display system with framestore and stochastic dithering
A display system provides temporal stochastic dithering to image data for storage in a frame buffer for display. Stochastic dithering is used to reduce the size of the frame buffer and the...
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7242808 |
Method and apparatus for analysis of variables
Various components of the present invention are collectively designated as Analysis of Variables Through Analog Representation (AVATAR). It is a method, processes, and apparatus for measurement and...
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7236642 |
Method and structure for generating output data of a digital image including a transparent object
A method for generating output data for a transparent object in a digital image creates a plurality of image areas. The plurality of image areas covers a total area of the transparent object in the...
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7206002 |
Image processing apparatus and method that avoid generation of moire
An image processing apparatus includes a spatial filtering unit which applies spatial filtering to input image data to generate filtered image data such that the spatial filtering provides a...
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7194143 |
Method of enhancement of the visual display of images and other visual data records
An digital image input, possibly being either pre-compressed or decompressed, is enhanced; its edges are preserved while any compression artifacts, like blocking and ringing, are simultaneously...
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7181084 |
Device and method for sub-band decomposition of image signals
A device that receives and processes an image signal for sub-band decomposition of an image includes a first median filter that receives the image signal and processes signal values of pixel...
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7181086 |
Multiresolution method of spatially filtering a digital image
A method of processing a digital image to improve tone scale, includes the steps of: generating a multiresolution image representation of the digital image including a plurality of base digital...
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7177481 |
Multiresolution unsharp image processing apparatus
The invention concerns an image-processing apparatus, in which a high-frequency component signal of an original image-signal, representing a plurality of pixels, is added to either the original...
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7151858 |
Wavelet edge map based apparatus and method for edge enhancement
An apparatus and method for correcting the sharpness of an image signal, using a Haar Wavelet transform and a difference between pixel values adjacent to the edge of the image signal to be...
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7098957 |
Method and apparatus for detecting repetitive motion in an interlaced video sequence apparatus for processing interlaced video signals
Interlaced video signals are processed by mixing spatially interpolated video signals with temporally interpolated video signals. The respectively interpolated signals are mixed in dependence on a...
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7091983 |
Coordinate wrapping for anisotropic filtering of non-power of two textures
An apparatus and method for using non-power of two texture maps with anisotropic filtering is described. An anisotropic perturbation is applied to a texture map coordinate to produce a perturbed...
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7088873 |
Bit-mapped image multi-stage analysis method
A method is described of bit-mapped image analysis comprising division of all analysis means at one's disposal into several groups differing in accuracy and further processing multi-stage analysis....
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7068851 |
Multiscale sharpening and smoothing with wavelets
A method and apparatus for processing image data are described. In one embodiment, a method of processing image data comprises decomposing the image data into multiple decomposition levels by...
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7034892 |
Spatio-temporal filter unit and image display apparatus comprising such a spatio-temporal filter unit
Noise reduction is an important feature in consumer television. This is realized by spatial, temporal or spatio-temporal filters. Spatial filters require pixels from within one image, while...
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6999634 |
Spatio-temporal joint filter for noise reduction
A spatio-temporal joint filter and a spatial joint filter for noise reduction are disclosed. The spatio-temporal joint filter includes a spatial joint filter including the first and second sub...
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6993204 |
High speed signal enhancement using pixons
Input data comprising a video signal is processed using a combination of a known image processing method to deblur, or sharpen, the image and convolution with Pixon™ kernels for smoothing. The...
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6956962 |
System and method of signal processing for use in reading data
A method of signal processing for use in reading data includes determining first and second waveforms, determining a cross-correlation of the first waveform with the second waveform, and...
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6956582 |
System and method for auto-adjusting image filtering
A method for is provided for antialiasing a computer graphics image using filtering. The method comprises the steps of defining a plurality of regions having samples from pixels in the computer...
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6956625 |
Image processing apparatus and method for realizing panorama/waterglass functions
An image processing apparatus and method for realizing panorama/waterglass functions, which are capable of reducing the size of a memory and simplifying memory control, are provided. In order to...
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6944579 |
SIGNAL SEPARATION METHOD, SIGNAL PROCESSING APPARATUS, IMAGE PROCESSING APPARATUS, MEDICAL IMAGE PROCESSING APPARATUS AND STORAGE MEDIUM FOR RESTORING MULTIDIMENSIONAL SIGNALS FROM OBSERVED DATA IN WHICH MULTIPLE SIGNALS ARE MIXED
Signals are separated by introducing a function having a monotonously increasing characteristic like an exponential type function as a cost function, and applying an adaptive algorithm that...
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6941026 |
Method and apparatus using intensity gradients for visual identification of 2D matrix symbols
Visual information regarding intensity and intensity-based gradient information is used in a multi-step process for accurately locating and decoding an encoded visual symbol matrix. A symbol is...
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6895125 |
Accelerated signal encoding and reconstruction using pixon method
The method identifies a Pixon element, which is a fundamental and indivisible unit of information, and a Pixon basis, which is the set of possible functions from which the Pixon elements are...
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6762882 |
System and method for use of dark field fourier diaphragm in multi-frequency imaging
An imaging system is disclosed that includes an illumination source, a modulator and a variable Fourier diaphragm. The illumination source produces a first illumination field having a first...
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6760067 |
Imaging apparatus
An imaging apparatus includes a CCD for accumulating an image signal by an n-times long-time-accumulation (n is an integer of “1” or more); a timing control circuit for controlling to read out...
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6744435 |
Rendering discrete sample points projected to a screen space with a continuous resampling filter
A method produces an image from a set of discrete sample points. The sample points can define a 3D volume or surface. Each discrete sample point is projected to a screen space. A continuous...
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6728416 |
Adjusting the contrast of a digital image with an adaptive recursive filter
A method and structure for adjusting the contrast of a digital image includes inputting an image, dividing the image into a pedestal signal and a texture signal, applying a tone scale function to...
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6718069 |
Method and system for reducing correlated noise in image data
A method and system for reducing correlated noise in imagers is disclosed. Methods are described for determining a pixel correction value. Correlated noise in data generated by imagers can be...
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6697533 |
Filtering circuit for image signal processing
A filtering circuit for image signal processing has a high frequency filtering circuit and a low frequency filtering circuit. The high frequency filtering circuit only includes one adder to obtain...
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6633683 |
Apparatus and method for adaptively reducing noise in a noisy input image signal
The basic configuration of Single local Adaptive Window Spatial Noise Reducer (SAW-SNR) is based on a preliminary de-noising low-pass filter followed by homogenous region segmentation to the...
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6594399 |
Method and apparatus for integrating multiple 1-D filters into a digital image stream interface
In a method of integrating one or more l-dimensional filters into a digital image stream interface a single digital video input is processed by multiple 1-dimensional digital image filters,...
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6466700 |
Method of processing a noisy multidimensional image and medical imaging apparatus for carrying out this method
The invention relates to an image processing method for preserving the edges of objects reproduced in an intensity image and for reducing the noise, including the steps of acquisition of the...
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6404908 |
Method and system for fast detection of lines in medical images
A method an apparatus for detecting lines in medical images is disclosed, wherein a direction image array and a line image array are formed by filtering a digital image with a single-peaked filter,...
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6400849 |
Image processing system with enhanced processing and memory management
An image processing method using memory management and pre-computed look up tables to speed up computations. Application of filters along directions other than image rows is simplified using...
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