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6965703 |
Optical scanner and software for correcting distorted images
The invention provides a scanner for scanning a surface having a one-dimensional optical sensor and no mechanical moving parts for determining the scanning speed. A method is also provided for...
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6965702 |
Method for sharpening a digital image with signal to noise estimation
A method of sharpening a digital image having image pixels according to its noise content, includes the steps of providing an image sharpener having a variable parameter of sharpening; generating a...
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6963670 |
CT dose reduction filter with a computationally efficient implementation
A technique for reducing noise in pixel images includes modifying initial image data to prevent subsequent image data loss, shrinking the modified image, processing the shrunken image with known...
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6961161 |
Holographic recording and reproducing apparatus
An image detected by a CCD image sensor 108 when only a non-modulated signal light is applied to a holographic memory 120 in which data is not recorded is ensured as a noise pattern. When data...
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6961145 |
System and method for the reproduction of oversize documents
A method for the reproduction of oversize documents is disclosed. The method utilized by the present invention copies or scans in stages an oversize document that exceeds the copy or scan surface...
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6952283 |
Sampling of customer images as color data for process control
A controls system and method of print quality control for a printing system. The controls system uses printed output images as a continuous source of data for control processes. An image quality...
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6950561 |
Method and system for sharpness enhancement for coded video
A system, (i.e., a method, an apparatus, and computer-executable process steps), providing sharpness enhancement for coded video, in which a usefulness metric, calculates how much a pixel can be...
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6947608 |
Equalizing circuit and method, and image processing circuit and method
According to an equalizing circuit and an equalizing method, a memory control unit receives an input of an input image data signal, a first memory stores the input image data signal after delaying...
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6947610 |
Method of correcting an image with perspective distortion and producing an artificial image with perspective distortion
A method of correcting an image with perspective distortion and creating an artificial image with perspective distortion is disclosed. First, image data including a distorted object image are...
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6944353 |
Image processing system
An image processing system of the present invention comprises an image inputting portion 1 for inputting image data, a ground-level detecting portion 3 for detecting a ground level of the input...
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6944354 |
Reflected or transmitted light scanner and image processing method for scanned-in image samples
A reflected or transmitted light scanner includes an illumination device for illuminating image material, a carrier for holding the image material, and a recording device for recording the light...
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6944356 |
Locating point of interest in an impaired image
Locating of points of interest in an impaired image derived from video processing of a reference image is achieved by generating an impairment map for the impaired image. Then a cross-fade is...
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6944321 |
Image distortion compensation technique and apparatus
A method of compensating for distortion within a composite image is disclosed. A biometric surface is sensed with a swipe imager. The images so provided are assembled into a composite image of the...
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6944355 |
Apparatus and methods for automatically adjusting images on edge-disturbed output media
The invention describes a method for preventing the loss of portions of a copied image when output media having edge disturbances, or virtual edge disturbances, are used. Such media can include...
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6940529 |
Graphics system configured to perform distortion correction
A graphics system comprises pixel calculation units and a sample buffer which stores a two-dimensional field of samples. Each pixel calculation unit selects positions in the two-dimensional field...
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6940897 |
System and method for a highly-programmable FIR filter
A highly-programmable Finite Impulse Response (FIR) digital filter overcomes the limitations of conventional configurations. Specifically, a compound FIR filter configuration is provided, offering...
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6940550 |
Digital camera and a method for correcting dust images in the camera
An all-white reference subject is imaged by a CCD and image data representing the reference subject is obtained. The position of any dust on the reference subject represented by the...
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6937777 |
Image sensing apparatus, shading correction method, program, and storage medium
This invention has as its object to eliminate sensitivity nonuniformity on the plane of an image sensing element irrespective of exchange of a lens. To achieve this object, in an image sensing...
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6937775 |
Method of enhancing the tone scale of a digital image to extend the linear response range without amplifying noise
A method of processing a digital image to improve contrast, the digital image being derived from an image captured by a recording medium having a nonlinear response to light, includes the steps of:...
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6934421 |
Calculating noise from multiple digital images having a common noise source
A method for estimating a noise characteristic value for a plurality of digital images that are affected by a common noise source includes receiving a plurality of source digital images that are...
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6933982 |
Method and apparatus for fast robust estimation of image noise in a video processing system
A method and apparatus for determining an image noise estimate value in a digital video processing system using only a single video image. In the method and apparatus, SAD values in the video image...
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6931160 |
Method of spatially filtering digital image for noise removal, noise estimation or digital image enhancement
A method of spatially filtering a digital image includes receiving a source digital image including pixels corresponding to one or more different colors; selecting a pixel of interest in the source...
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6928192 |
User interface for interactive removal of defects in an image sequence
A method and apparatus are disclosed for repairing an image using an image defect matte that indicates portions of an image that have been repaired in previous iterations or are proposed...
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6927874 |
Image processing method, apparatus and storage medium therefor
An image processing method and apparatus for forming a mosaic image by combining a plurality of material images, dividing a first image that is the basis of the mosaic image into a plurality of...
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6928182 |
Imaging
A de-convolution process is applied to an MR, CT or other image ( 25 ) of a scanned-object ( 23 ) to derive the point-spread function ( 22 ′) at an object-edge and to pin-point from the mid-point...
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6928193 |
Fundus imaging
Degradations of the image acquired by a fundus camera, including those due to intraocular defects are reduced by digitizing the image, taking an FFT of row and column image data, correlating the...
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6924839 |
Image-processing method and recording medium in which such an image-processing method is recorded
In a sharpening process of image data using a Laplacian operation, a parameter k for controlling the size of a Laplacian to be subtracted from an original image, a parameter θ for suppressing...
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6921172 |
System and method for increasing projector amplitude resolution and correcting luminance non-uniformity
A system and method corrects luminance non-uniformity and increases the apparent amplitude resolution of an image generated by a projector. The projector, which has a given number of stated levels,...
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6922492 |
Video deblocking method and apparatus
Digital video imagery is deblocked as a function of horizontal and/or vertically oriented pixels that share a common attribute (such as a corresponding pixel value). In particular, a deblocking...
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6922491 |
Wavelet filtering
The preferred method wavelet filters a digital image. The digital image comprises a plurality of pixels arranged in a plurality of columns and rows. The method processes one or more bands of pixels...
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6919973 |
Auxiliary pixel patterns for improving print quality
Utilization of non-printing high-spatial-frequency auxiliary pixels are introduced into the bitmap of an image to obtain local control of the image development by modification of local average...
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6915005 |
Method for reconstruction of limited data images using fusion-aligned reprojection and normal-error-aligned reprojection
The present invention provides methods of using current but incomplete data to prepare an approximated complete image of a patient potentially undergoing radiation therapy. A complete image of the...
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6912322 |
Adaptive process for removing streaks in multi-band digital images
A method of removing streaks from multi-band digital images is presented in which a multi-band image is transformed to an advantageous spectral space, in which a streak removal operation is applied...
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6909813 |
Contour correcting circuit and contour correcting method
In a contour correcting circuit that generates, on the basis of respective signals for a plurality of pixels including the pixel to be corrected at the center and arranged in a particular...
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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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6906704 |
Noise elimination method and noise elimination apparatus
A noise elimination method of the present invention includes the steps of: detecting a zigzag signal in which a differential value between signal levels of two pixels which are adjacent to each...
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6900836 |
Correcting defects in a digital image caused by a pre-existing defect in a pixel of an image sensor
A method for correcting for defects in a digital image taken by an image sensor when there is a pre-existing defect in at least one pixel of the image sensor which causes a line of pixels in the...
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6898328 |
Method and apparatus for adaptive pixel estimation under high error rate conditions
A method and apparatus for adaptive pixel estimation under high error rate conditions are disclosed. Classes are created, feasible classes are determined, and an optimal filter is applied to...
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6898330 |
Image processor
An image processor for forming an easy-to-see image by broadening the significant band of image data received from a logarithmic (LOG) image sensor to enhance the contrast of the image. The LOG...
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6898327 |
Anti-flicker system for multi-plane graphics
Flickering artifacts are removed from a displayed image by storing digital luminance values in a compressed form using disallowed luminance values clipped from a range of luminance values to encode...
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6894698 |
Recovering added precision from L-bit samples by dithering the samples prior to an averaging computation
A dithering system comprising a dithering unit, a storage medium, and an averaging unit. The dithering unit is configured to receive a set of data values, to add dither values to the data values,...
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6895124 |
Image processing apparatus
In this invention, for example, in order to realize conversion to “smooth skin” and “wrinkle enhancement” with a natural look while preserving the grain and texture of the skin, a specific...
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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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6891645 |
Image reading apparatus and image reading method
An image reading apparatus in which extended image reading time is prevented when high quality image data is obtained, which image data is corrected by invisible light such as infrared light which...
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6885766 |
Automatic color defect correction
The present invention refers to a method for automatically correcting color defective areas in an image, which defective color areas were recorded with a color spectrum deviating from the actual...
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6885775 |
Image processing method and image processing apparatus
An image processing apparatus comprises a noise detection means for performing noise detection on an input image; a noise removal means for removing noise from a predetermined region of the input...
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6882754 |
Image signal processor with adaptive noise reduction and an image signal processing method therefor
An image signal processing device includes a signal processing circuit for executing signal processing for correction and recording on image data representative of an input image. Also, the signal...
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6879729 |
Parallel object-oriented, denoising system using wavelet multiresolution analysis
The present invention provides a data de-noising system utilizing processors and wavelet denoising techniques. Data is read and displayed in different formats. The data is partitioned into regions...
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6879733 |
Image artifact removal technique for LCP
A technique is provided that identifies screen and non-screen regions of a projected or displayed image to smooth and selectively remove moiré from the screen regions while maintaining sharpness...
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6879734 |
Memory efficient image artifact removal technique for LCP
A technique is provided that identifies screen and non-screen regions of a projected or displayed image to smooth and selectively remove moiré from the screen regions while maintaining sharpness...
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