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| Number | Title | Issue Date |
| 8160393 | Method for image skew detection A method for calculating a skew angle of an original image, executed at least in part on a computer system stores image data for the original image in an electronic memory, then forms an energy-normalized image according to the relative contrast amplitude of image f... | 04/17/2012 |
| 8150212 | System and method for automatic digital image orientation detection Described is a system for automatic digital photo orientation detection. We leverage online public photos with great content variation to extract effective features with layout information. Classification proceeds using an approximate nearest neighbors approach whic... | 04/03/2012 |
| 8150211 | Identifying patterns in data An image feature within image data may be identified and located from the maximum values in a Hough voting table. The Hough voting table may be generated by converting edge pixels identified with an image data into an array. The array may be read in row order with t... | 04/03/2012 |
| 8094971 | Method and system for automatically determining the orientation of a digital image A method of automatically determining orientation of a digital image comprises extracting features of the digital image and processing the extracted features using diverse classifiers to determine orientation of the digital image based on the combined output of the ... | 01/10/2012 |
| 8090218 | Imaging system performance measurement A method (1000) of measuring performance parameters of an imaging device (120, 160) is disclosed. The method (1000) maintains a test pattern image (1005), the test pattern image (1005) comprising alignment features and image analys... | 01/03/2012 |
| 8064729 | Image skew detection apparatus and methods Methods and apparatus for detecting skew in a document image, such as a check image, to produce a de-skewed image are described. One example method includes detecting one or more lines in the image and determining whether the one or more lines are reliable. Reliabil... | 11/22/2011 |
| 8050520 | Method for creating a pixel image from sampled data of a scanned beam imager A method for creating a pixel image in a two-dimensional display coordinate system from sampled data derived from a collector of a scanned beam imager adapted to transmit a beam of radiation which traces a trajectory in a two-dimensional acquisition coordinate syste... | 11/01/2011 |
| 8023770 | Methods and systems for identifying the orientation of a digital image Aspects of the present invention are related to systems and methods for determining the orientation of an electronic document image. ... | 09/20/2011 |
| 8009931 | Real-time processing of grayscale image data In a digital reproduction system incorporating a single pass scanner, accurate image processing results from processing a subset of grayscale image data. More specifically, scanlines that correspond to the leading edge of a document are stored and processed to detec... | 08/30/2011 |
| 8009930 | Auto-calibration method for a projector-camera system A method for self-recalibration of a structured light vision system including a camera and a projector. A camera plane and a projector plane are defined, a Homography matrix between the camera plane and the projector plane is computed, and a translation vector and a... | 08/30/2011 |
| 7991244 | Variable skew correction system and method A variable skew correction system comprises a de-skew application executable to transform scanned image data of a document exhibiting a variable skew condition to an output model representing a de-skewed image of the document by transferring pixel data for each of a... | 08/02/2011 |
| 7970239 | Hand jitter reduction compensating for rotational motion The registration of images comprising segmenting an image in a frame into a set of sectors which forms a circle. Generating a plurality of sets of projections in a base frame, wherein each set of projections is generated from any sector amongst the set of sectors fr... | 06/28/2011 |
| 7925115 | Image processing device capable of detecting and correcting inclination of image An image process capable of rapidly detecting and correcting the inclination of a document image is executed as follows. Dots are put on a document image at even intervals and the document image is printed to provide a printed object. The printed object is read with... | 04/12/2011 |
| 7907794 | Method for aligning a modified document and an original document for comparison and difference highlighting A method for aligning a modified document and an original document is provided according to an aspect of the present invention. The method includes a step of receiving a first bitmap representative of the modified document, including a first anchor. Additionally, a ... | 03/15/2011 |
| 7907795 | Two-dimensional measurement system A system (100) and a method (500) are described for determining a two-dimensional position of a location in an image. The method (500) starts by imaging (510) a two-dimensional pattern (440). The two-dimensional pattern comprises a... | 03/15/2011 |
| 7881561 | Method of pre-analysis of a machine-readable form image The present invention relates generally to an optical character recognition of machine-readable forms, and in particular to a verification of a direction of spatial orientation and a definition of a form type of the document electronic image. The goals of the invent... | 02/01/2011 |
| 7873239 | Image processing apparatus, image direction determining method, and computer program product A first direction determining unit determines, with respect to each of directions in image data corresponding to an image that contains text, a degree of certainty that the direction corresponds to a predetermined direction of the image to obtain a first direction w... | 01/18/2011 |
| 7693347 | Smear correction in a digital camera Methods and apparatus to measure small shifts and rotations of video images captured in short succession after a first reference video image is captured, and to add the sequence of captures while shifting or rotating back the shifted or rotated images, in order to i... | 04/06/2010 |
| 7668404 | Method and system of deskewing an image using monochrome conversion to separate foreground from background A method and system of deskewing an image. The method and system includes capturing a first image, forming a number of regions within the first image, generating a bounding rectangles for each region, calculating an area for each bounding rectangle, rotating each re... | 02/23/2010 |
| 7643702 | Object detection in images using a graphics processor Methods, systems and apparatus, including computer program products, for processing electronic images. An electronic image is transformed to generate a transformed image according to a first coordinate transformation. The transformed image is filtered, and a second ... | 01/05/2010 |
| 7620268 | Method and apparatus for recognizing text in an image sequence of scene imagery An apparatus and a concomitant method for detecting and recognizing text information in a captured imagery. The present method transforms the image of the text to a normalized coordinate system before performing OCR, thereby yielding more robust recognition performa... | 11/17/2009 |
| 7515772 | Document registration and skew detection system Disclosed methods and systems perform electronic registration of digitally captured images in real-time and performs accurate and robust digital image processing by analyzing the entire digitally captured image. ... | 04/07/2009 |
| 7483591 | Image transfer apparatus with streak removal system An image transfer apparatus for transferring an image on a sheet medium having a frame and a reader connected to the frame for reading the image on the sheet medium. The image moves relative to the reader in a process direction when the reader reads the image. A pos... | 01/27/2009 |
| 7438231 | Method for detecting forged barcodes A method of printing a two-dimensional barcode by tilting the print head, which results in tilted barcode, and methods of detecting various types of attempts to forge the tilted barcode including: (i) a low level forgery that consists of a simple scan and reprint of... | 10/21/2008 |
| 7437017 | Image processing method In accordance with an image processing method, a data region is detected from input image data. The input image data is rotated in accordance with inclination of an image. Determination is made whether the data region of rotated image data protrudes from an image ar... | 10/14/2008 |
| 7433509 | Method for automatic de-skewing of multiple layer wafer for improved pattern recognition A method for processing wafers includes learning a first pattern at a de-skew site on a first wafer layer, saving the first patterns in a recipe for de-skewing wafers, learning a second pattern at the de-skew site a second wafer layer, and saving the second pattern ... | 10/07/2008 |
| 7420719 | Skew correction Method embodiments herein print a test document using a multi-function printing device to produce a printed document. This printed document is examined in a first direction to determine a first skew of the printing device. The first skew comprises a combination of r... | 09/02/2008 |
| 7418126 | Image distortion correcting method and apparatus, and storage medium An image distortion correcting apparatus is provided with an image input section to input an image of a flat rectangular paper surface imaged by an imaging section, as an input image, an imaging position estimating section to estimate a relative imaging position of ... | 08/26/2008 |
| 7415168 | Image reading device An image reading apparatus has a data calculation unit (31,32) to calculate moving average data and second derivative data for a plurality of samples made of multivalued data, a position detection unit (41, 42) to detect first and second positions at w... | 08/19/2008 |
| 7412113 | Captured image projection apparatus and captured image correction method A calligraphy/drawing camera image-captures a document and sends a resultant captured image to a personal computer (S101). The personal computer applies various image processes such as correction of various deformations including a trapezoidal deformation bas... | 08/12/2008 |
| 7406214 | Methods and devices employing optical sensors and/or steganography A wireless phone is equipped with a 2D optical sensor, enabling a variety of applications. For example, such a phone may also be provided with a digital watermark decoder, permitting decoding of steganographic data on imaged objects. Movement of a phone may be infer... | 07/29/2008 |
| 7400782 | Image warping correction in forming 360 degree panoramic images A method for creating a 360 degree panoramic image from multiple images includes (1) computing a gross rotation error ΔR between a first image and a calculated first image rotated to be stitched to a last image, and (2) spreading the gross rotation error ΔR to eac... | 07/15/2008 |
| 7391930 | Angle de-skew device and method thereof An angle de-skew device and the method thereof are used in an image processing system to rotate a skewed image with respect to a reference point as a rotated center. First and second accumulator circuits respectively are used to accumulate first and second offsets f... | 06/24/2008 |
| 7376289 | Image processing method and image processing apparatus Image data having a total number of pixels being H×V is written in SDRAM having an enough number of recording domains capable of storing all the pixel data of the image data and the number of Column addresses set therein at 2n (4≦n) in the order of lin... | 05/20/2008 |
| 7376285 | Method of auto-deskewing a tilted image A method of auto-deskewing a titled original image is provided. Frist, obtain an original image by scanning to acquire values of pixels in the original image. Next subject the original image to a binarization process. And, set a datum line in the original image. The... | 05/20/2008 |
| 7356200 | Method and device for determining skew angle of an image Methods and apparatuses for determining a skew angle of text relative to an axis are disclosed herein. One exemplary embodiment of the method comprises locating a first portion of the text that has a spatial frequency greater than a first preselected value. The meth... | 04/08/2008 |
| 7356193 | Detection of hanging wires in digital color images A method of improving a digital color image having pixels, the method includes identifying pixels from the digital color image representing one or more sky regions; detecting sky occlusion regions by examining the sky regions; developing a model based on the identif... | 04/08/2008 |
| 7352493 | Enhancement of glossmark images at low and high densities The present invention relates to expanding the range of image densities over which the manipulation of differential gloss as may be inherent in halftoned images may be achieved. By selectively applying halftones with anisotropic structure characteristics which are s... | 04/01/2008 |
| 7352888 | Method for computer recognition of projection views and orientation of chest radiographs A method for identifying a projection view and an orientation of a chest radiograph. The method includes the steps of: providing an input digital image of the chest radiograph; preprocessing the input digital radiographic image; classifying the view of the input dig... | 04/01/2008 |
| 7349120 | Method for multiple-page scaling and composing printing A printing control method includes both scaling and composition functions for arranging several printing pages on a specified paper and printing. If operates with “fit to paper” scaling and “N-up” layout calculations. The user can setup a composite printing ... | 03/25/2008 |
