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"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Application No. | Application Title | Issue Date |
| 20110216344 | HARD IMAGING METHODS, HARD IMAGING DEVICE FABRICATION METHODS, HARD IMAGING DEVICES, HARD IMAGING DEVICE OPTICAL SCANNING SYSTEMS, AND ARTICLES OF MANUFACTURE Hard imaging methods, hard imaging device fabrication methods, hard imaging devices, hard imaging device optical scanning systems, and articles of manufacture are described. According to one embodiment, a hard imaging method includes providing image data corresponding t... | 09/08/2011 |
| 20110149351 | IMAGE READING DEVICE, METHOD OF READING IMAGE, AND RECORDING MEDIUM STORING CONTROL PROGRAM FOR CONTROLLING IMAGE READING DEVICE An image reading device includes a transport unit for transporting a document, a scanner for scanning image data of the document transported by the transport unit, and a controller for controlling the image reading device. The controller extracts a plurality of one-char... | 06/23/2011 |
| 20110044554 | ADAPTIVE DEBLURRING FOR CAMERA-BASED DOCUMENT IMAGE PROCESSING An image deblurring method for camera-based document image processing is described. A document image captured by a digital camera is divided into multiple overlapping or non-overlapping sub-images. A point spread function is derived for each sub-image by analyzing the g... | 02/24/2011 |
| 20110032581 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING SYSTEM, AND IMAGE PROCESSING METHOD This invention is directed to an image processing apparatus and method capable of analyzing a character image to detect a blur, and reducing the blur on a printed product. According to the method, a scanner reads an original character image, generating image data. A blu... | 02/10/2011 |
| 20100315684 | Information processing device, detachable storage medium access control circuit, and image forming apparatus An information processing device including a printed circuit board, to access a detachable storage medium, including a control device, provided on the printed circuit board, to control access to the storage medium; a slot connector, provided on the printed circuit board... | 12/16/2010 |
| 20100118352 | IMAGE READING APPARATUS FOR DETECTING NOISE IN IMAGE DATA An image reading apparatus includes: three line sensors mutually spaced in a sub scanning direction; a platen arranged between the original and the three line sensors; a mover moving the platen relative to the three line sensors at a rate relative to the three line sens... | 05/13/2010 |
| 20090244647 | IMAGE READING APPARATUS, IMAGE READING METHOD AND IMAGE READING PROGRAM An image reading apparatus in which cross-talk noise occurring between plural reading units is reduced, an image reading method and an image reading program are provided. There are included plural reading units that respectively operate at different timings, a noise cal... | 10/01/2009 |
| 20090103142 | Method and apparatus for reducing aliasing artifacts in scans of screen printed originals Method and apparatus of reducing aliasing when scanning a screen printed document including removing high frequency image information at the input of an image sensor prior to scanning. Removing high frequency image information increases the effective sampling frequency ... | 04/23/2009 |
| 20090051979 | TONER-BASED NOISE REDUCTION IN ELECTROSTATOGRAPHY In the method, a digital image is received. A granularity model is constructed of each of the toner stations. A noise table is produced. The noise table is based on the granularity models and is adaptive to the content of the digital image. Noise is reduced in the digit... | 02/26/2009 |
| 20080112016 | SOLID-STATE IMAGING APPARATUS A solid-state imaging apparatus includes: a pixel section where a plurality of pixels for effecting photoelectric conversion are two-dimensionally arranged, having an effective pixel section consisting of pixels for receiving object light and a reference pixel section c... | 05/15/2008 |
| 20080088888 | DEVICE FOR CONVERSION OF A HARD-COPY DOCUMENT CONTAINING TEXT OR IMAGE DATA INTO THE ELECTRONIC DOCUMENT. A device for obtaining graphical information from a single- or multi-page document printed on a hard media where reading out of the position of the document elements is performed by using a method of volumetric scanning of a document (even closed) is described. Processi... | 04/17/2008 |
| 20080036881 | IMAGING DEVICE AND IMAGING METHOD FOR USE IN SUCH DEVICE An imaging device which assures high-quality image information free from a line noise by extracting line noise information from a taken image, detecting an existence of an extrinsic line noise in the image, and correcting the line noise if it exists. The imaging device ... | 02/14/2008 |
| 20070297019 | Apparatus, method, mobile station and computer program product for noise estimation, modeling and filtering of a digital image An apparatus, method, mobile station and computer program product are provided for filtering noise from a digital signal. In particular, a signal-dependent noise model is used that provides the pointwise (or pixelwise) standard deviation of the temporal noise of raw dat... | 12/27/2007 |
| 20070223057 | Method of estimating noise in spatial filtering of images A noise prediction scheme provides a method of predicting an output noise variance resulting from a spatial filtering transformation. For a given input image signal with a known input noise variance, a periodic model is developed. The periodic model defines periodic bou... | 09/27/2007 |
| 20070211307 | IMAGE PROCESSING APPARATUS AND METHOD FOR REDUCING NOISE IN IMAGE SIGNAL An image signal processing apparatus to remove noise included in an image signal includes a GR-GB correction unit, a threshold calculation unit, and a preprocessing and interpolation unit. The GR-GB correction unit detects a first area in response to the difference betw... | 09/13/2007 |
| 20070201106 | Optimum noise filter setting for a scanner in a closed loop system Disclosed is a method for determining optimum noise filter setting to be used by a scanner in a system including a printer and a detector forming a closed loop system. A test image including a plurality of horizontal lines, vertical lines, slanted lines and dots are pri... | 08/30/2007 |
| 20070153335 | Image signal processing apparatus, imaging apparatus, image signal processing method and computer program There is provided an image signal processing apparatus, comprising a demosaic processing unit receiving input of mosaic image data of each of signals obtained by a single plate imaging device having an element array composed of visible light obtaining elements obtaining... | 07/05/2007 |
| 20070146816 | IMAGE SCANNER AND IMAGE FORMING APPARATUS An image scanner includes a scanning unit that scans a white scanning member via a contact glass on one line basis when the image scanner is powered on and outputs image data of the white scanning member, and a determining unit that determines whether at least one of th... | 06/28/2007 |
| 20070127086 | Communication apparatus, communication method, image forming apparatus utilizing such method, unit connected to image forming apparatus and image forming system A sampling unit samples plural input signals, and detects a point (change point) at which one of the sampled input signals shows a change in the logic level. In case the logic level after the detection of the change point continues for a predetermined time, the plural s... | 06/07/2007 |
| 20070109605 | Image reading device and noise detecting method An image reading device compares pixel values of an image data, which is output when a document is not at a reading position, with a threshold and generates a first dust detection data; compares a image data, which is output while the document is passing the reading pos... | 05/17/2007 |
| 20070097391 | Apparatus and method for improving image quality of image sensor Provided are an apparatus and method for improving an image quality of an image sensor, capable of adaptively removing noise occurring in a de-mosaicking that is performed for generating three-channel data of R, G and B from a single channel pixel structure based on a b... | 05/03/2007 |
| 20070047021 | Image denoising apparatus and method According to an image de-noising method, an original image is corrected into an intermediate correction image. A differential image is determined between the original image and the intermediate correction image. Each pixel in the differential image has a differential pi... | 03/01/2007 |
| 20070019243 | Image Processing Apparatus And Image Processing Method Background images are removed and only the desired payment information is extracted from a grayscale image of a check or similar financial instrument. A density distribution improvement process applied to grayscale raw image data 40 acquired by scanning a check c... | 01/25/2007 |
| 20060245008 | Image processing apparatus, image processing method, electronic camera, and scanner In a noise reduction apparatus or method, at least one of a luminance noise estimate value estimating a luminance noise of a target pixel and a chrominance noise estimate value estimating a chrominance noise of the target pixel is estimated in accordance with an average... | 11/02/2006 |
| 20060245002 | Image processing method and program for restricting granular noise and module for implementing the method An image processing module restricts granular noise present in photographic image data obtained by digitization of an image by utilizing a weighted average filtering operation. The module comprises a target pixel setting section, a difference value calculation section, ... | 11/02/2006 |
| 20060221410 | Image processing apparatus An image processing apparatus of the present invention includes: a background density distribution estimating part 12 that estimates density distribution of background pixels; an area density distribution estimating part 13 that estimates density distribut... | 10/05/2006 |
| 20060132859 | Automatic detection of fluorescent flicker in video images A method for detecting the presence of flicker in video images includes obtaining luminance data from sampled image fields and analyzing the luminance data to obtain a digital number characterizing the brightness of the luminance data. Frequency analysis is performed on... | 06/22/2006 |
| 20060132860 | Display apparatus and method of processing image thereof A display apparatus receiving an image signal and processing the image signal to be displayable on the basis of a macro-block is provided. The display apparatus includes an image signal receiving part receiving a coded signal including the image signal and converting th... | 06/22/2006 |
| 20060126126 | Information signal processing device, information signal processing method, image signal processing device, image displaying device, device and method for producing correction data used in them, device and method for producing coefficient data, programs for executing these methods, and computer-readable medium in which thos The present invention relates to an apparatus for processing informational signal etc. that are preferably applied to a digital broadcast receiver etc. A class classification portion (130) generates a class code CL for indicating a class to which pixel data y of ... | 06/15/2006 |
| 20060109522 | Method for run-time streak detection by profile analysis Disclosed is a method to detect streaks in the scanned documents. The principle of this method is that the profiles of streaks change very little from line to line, while profiles of other thin lines, as content of scanned documents, usually vary in a degree. Therefore,... | 05/25/2006 |
| 20060103892 | System and method for a vector difference mean filter for noise suppression Reduction of noise in digitized multi-spectral images is provided by filtering based on vector values rather than independent scalar values. Vector values refer to a pixel with two or more values. For this method, a metric is defined for pixel vector magnitude. A slidin... | 05/18/2006 |
| 20060098241 | Method and apparatus for decoding mixed code Provided are a method and apparatus for decoding a mixed code that is a combination of first and second code images. In the method, a mixed code image is obtained by receiving the original image having the mixed code image and removing noise from the original image. Nex... | 05/11/2006 |
| 20060087703 | Mutual information regularized Bayesian framework for multiple image restoration A method for multiple image restoration includes receiving a plurality of images corrupted by noise, and initializing a reduced noise estimate of the plurality of images. The method further includes estimating a probability of distributions of noise around each pixel an... | 04/27/2006 |
| 20060066915 | Image reading apparatus reading an original while transporting the same An image reading apparatus includes, with the purpose of accurately correcting noise in an image due to dust on a platen, three line sensors spaced from each other in a sub scanning direction to scan an original in the sub scanning direction, a platen between the origin... | 03/30/2006 |
| 20060055985 | Color-noise reduction circuit and image-sensing apparatus therewith In a color-noise reduction circuit in which a color-difference signal of a target pixel is substituted in a random substitution circuit 104 by a color-difference signal of another pixel within an area including the target pixel, a pixel-substitution color-differe... | 03/16/2006 |
| 20060039039 | Noise reduction apparatus, method and program Uncorrelated noise is reduced in image data. To achieve this, CCD-RAW data, in which color components are output in order in accordance with an array of color filters that have been formed on the photoreceptor surface of a CCD, is subjected to array conversion processin... | 02/23/2006 |
| 20060007504 | Image pickup device and signal processing method The present invention provides an image pickup device in which a column noise component is detected in a short time without being influenced under variant random noise even if the VOPB area B includes a small number of lines, and pixel signals from the effective pixel a... | 01/12/2006 |
| 20060007329 | Column-wise clamp voltage driver for suppression of noise in an imager An imager having column-wise clamp voltage drivers. Each clamp voltage driver is substantially identical to the output circuitry of the imager's pixels in that column and is designed to track the noise experienced by the readout pixels. Each clamp voltage driver generat... | 01/12/2006 |
| 20050275855 | Measurement and control of high frequency banding in a marking system A method of measuring and controlling high frequency banding, the method includes creating a test pattern, sensing the test pattern with optical sensors, determining a beat frequency based on the sensed test pattern, and determining the frequency, phase and amplitude of... | 12/15/2005 |
| 20050213165 | Signal processing unit There is described a signal processing apparatus, which conducts processing of a signal outputted from an image capturing element that converts an optical image obtained by irradiating light on an object such as document to an electric signal. The apparatus includes: a ... | 09/29/2005 |
