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7620240 |
Method of encoding and decoding image data by applying image capturing device
A method of encoding and decoding image data by applying an image capturing device includes generating a difference coding group, applying an modified Hadamard transform (MHT) on the difference...
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7609300 |
Method and system of eliminating color noises caused by an interpolation
A method and system of eliminating color noises caused by an interpolation, which performs an interpolation on a Bayer image obtained by an image sensor to restore red, green and blue colors of...
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7590301 |
Method and system for correcting defective pixels of a color image
A method and system for correcting defective pixels of a color image, which first performs an interpolation on a Bayer image captured by an image sensor to thus reconstruct red, green and blue...
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7580579 |
Image-adaptive quantization for JPEG compression
In a method of digital image compression, the spatial frequency content of a digital image is characterized using a relatively sparse sampling of data blocks from the image, and a quantization...
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7570833 |
Removal of poisson false color noise in low-light images usng time-domain mean and variance measurements
Disclosed are an image processing method capable of effectively removing noise contained in an image photographed in a low light environment by using statistical information, and a system thereof....
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7567294 |
Gradient adaptive video de-interlacing
A method includes determining a lowest-score interpolation direction among a plurality of interpolation directions. The method further includes calculating a candidate pixel value by interpolating...
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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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7548646 |
Method for adjusting saturation
A method for adjusting saturation by distinguishing a plurality of color systems and color system zones corresponding to the color systems from a C b -C r coordinate, and finding the corresponding...
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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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7486297 |
Method and apparatus for image processing in a handheld device
The present invention provides a method and apparatus for image processing using a graphics processor in a handheld device including a first memory device receiving a video input signal containing...
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7466364 |
Device for reducing flicker defects
The invention relates to a device for reducing flicker disturbances in a video signal having a temporal median filter and a filter connected downstream. The temporal median filter serves for...
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7454080 |
Methods and apparatus for improving quality of block-transform coded images
Block-based image processing methods and apparatus that provide a reduction in block-transform image coding artifacts are described. In various embodiments, the invention is directly incorporated...
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7403666 |
Apparatus and method of filtering digital information
A filtering apparatus calculates a median of image data that includes nine pixel values arranged in a window of 3*3. First, an input circuit receives as an input the image data, divides the data...
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7394944 |
Method and system for finding spatial medians in a sliding window environment
A method for determining a median value in a sliding window environment is provided. The method includes creating a merge tree defining leaf nodes associated with columns corresponding to a first...
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7391447 |
Method and apparatus for removing noise from a digital image
An apparatus and method of removing fixed pattern noise in a digital image processing apparatus are provided. The apparatus includes a controlling unit adjusting a number of image frames of a same...
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7382406 |
Noise reduction system, noise reduction method, recording medium, and electronic camera
A noise reduction system comprises an inputting unit inputting image data, and a noise reduction unit performing a process for removing noise of the image data input by the inputting unit. The...
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7379615 |
Method for space-time filtering of noise in radiography
To reduce the fluoroscopic noise in an image I acquired at a date t, the pixels of this image are paired with the pixels of an image I′ acquired at a date t−1. For a pixel with coordinates...
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7362376 |
Method and apparatus for video deinterlacing and format conversion
A method for deinterlacing a picture is disclosed. The method generally includes the steps of (A) generating a plurality of primary scores by searching along a plurality of primary angles for an...
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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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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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7324701 |
Image noise reduction
An image processing apparatus determines whether or not a target pixel TP which is the object of the smoothing process is an edge-forming pixel based on the edge level (gradient g). If the pixel is...
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7308153 |
Weighted absolute difference based noise reduction method and apparatus
The invention is a method and apparatus for reducing noise in an image. The method and apparatus involves calculating a plurality of directional operators, comparing the directional operators to a...
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7228003 |
Flat-field, panel flattening, and panel connecting methods
A plurality of panels are assembled into a single image. Each of the panels may have different intensities throughout the panel, as well as non-uniformities between panels. The panels are modified...
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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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7177463 |
Image processing apparatus and method
A surrounding pixel reference unit reads out and stores image data having a predetermined size from a line buffer. A color judgment unit detects the color of the image (reference image) stored in...
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7162073 |
Methods and apparatuses for detecting classifying and measuring spot defects in an image of an object
A method is provided for detecting spot defects on an object when an allowable variation (called the “background”) in the appearance of the object can be modeled. Methods are also provided for...
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7158660 |
Method and apparatus for detecting structures of interest
A method to detect a structure of interest includes shading a target from ambient light. A first plurality of images is acquired from the target. Background in the first plurality of images is...
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7158189 |
Adaptive non-linear noise reduction techniques
An impulse-reducing module ( 200 ) reduces random noise in video pixels by providing an impulse detector ( 244 ) and an impulse reducer, such as a median filter ( 250 ). The impulse detector ( 244...
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7133569 |
Aliasing artifact attenuation system
A multi-resolution filter is provided that may be used to attenuate aliasing artifacts in a digital input signal, such as a digital image acquired by a digital camera. The multi-resolution filter...
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7133568 |
Method and apparatus for analysis of variables
Various components of the present invention are collectively designated as Analysis of Variables Through Analog Representation (AVATAR). AVATAR offers an analog solution to those problems of the...
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7129988 |
Adaptive median filters for de-interlacing
An adaptive intra-field algorithm to de-interlace video data uses two line memories to implement a median filter that can use multiple data points on adjacent lines of display. In a median-mode,...
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7110612 |
Weighted absolute difference based noise reduction method and apparatus
The invention is a method and apparatus for reducing noise in an image. The method and apparatus involves calculating a plurality of directional operators, comparing the directional operators to a...
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7103214 |
Image processing apparatus and method
A surrounding pixel reference unit reads out and stores image data having a predetermined size from a line buffer. A color judgment unit detects the color of the image (reference image) stored in...
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7050647 |
Median filter
A median filter using an M×N window sorts M×N pixel data along each column in descending order to generate N data strings, each having M sorted pixel data. The N data strings are sequentially...
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7046304 |
Noise reduction circuit
A noise reduction circuit comprises correlation value calculation means for calculating correlation values in a plurality of directions centered at a pixel to be corrected; correction amount...
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7016549 |
Image processing method for direction dependent low pass filtering
First similarity values along at least four directions are ascertained within a local area containing a target pixel and weighted averaging is performed by adding the pixel values of pixels around...
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7003146 |
X-ray examination apparatus and method for forming an X-ray image
The invention relates to an X-ray examination apparatus and a method for forming an X-ray image by means of a processing unit ( 2 ) for the correction of image data. In order to achieve automatic...
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6999630 |
Method of processing, and corresponding filtering device
The invention relates to a method of processing data, which may be pixels (P[i,j]) representing a sequence of pictures, previously encoded and decoded. The method comprises at least in series a...
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6980696 |
Selective smoothing and sharpening of images by generalized unsharp masking
A method of deriving from an existing selective image smoothing filter either a corresponding filter for selective image sharpening, or a corresponding filter for both selective image smoothing and...
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6973218 |
Dynamic range compression
A method and apparatus for processing image data is described, comprising acquiring a frame of image data and compressing the dynamic range of the frame of image data using a dynamic range...
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6971060 |
Signal-processing based approach to translation of web pages into wireless pages
A method and apparatus for transforming a web page that contains main content and auxiliary data. The web page is converted into a string containing multiple first values and multiple second...
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6944352 |
Circuitry for determining median of image portions
Hardware circuit for median calculation in an active pixel sensor.
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6907144 |
Noise reduction method, apparatus, and program for digital image processing
A method of processing a digital image channel to remove noise, includes the steps of: identifying a pixel of interest; calculating a noise reduced pixel value from a single weighted average of the...
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6901170 |
Image processing device and recording medium
An image processing apparatus and a recording medium which can improve the quality of a color document image. Smoothing conditions which are defined by three parameters of “filter size”,...
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6870959 |
Method for automatic removal of vertical streaks by modifying image data associated with non-homogenous image elements
A method for automatic removal of vertical streaks involves a comparison between image data for a pixel and its neighbor pixels to determine whether the pixel is non-homogenous. In a preferred...
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6862366 |
Techniques for scratch and date removal from scanned film
Techniques for removing from scanned film regions of “missing data” which may include date regions, or may be the result of spots, scratches or folds on the film. Such techniques are...
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6859554 |
Method for segmenting multi-resolution video objects
A method for segmenting video objects in a video sequence that is composed of frames including pixels first assigns a feature vector to each pixel of the video. Next, selected pixels are identified...
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6847739 |
Method for processing compressed image data for reducing blocking artifacts
A method for post-processing compressed image data for reducing blocking artifacts is suggested, in which a set of primary image data (PID) is decomposed into data sets (IID 1 , IID 2 ) containing...
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6819804 |
Noise reduction
Noise filtering ( 3 ) of a signal (x) is effected by estimating ( 30 ) a type of noise in the signal (x) and enabling ( 30 ) one of at least two noise filters ( 310, 311, 312 ), the enabled noise...
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6816614 |
Method for comparing recorded pixel images representing equipotential lines of at least an integrated circuit chip
The invention concerns a method for comparing two recorded pixelated source images ( 2 a, 2 b ) of the same rectangular format representing in contrasted form the equipotential lines on an...
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