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7433537 |
Image reproduction system for removing noise of a periodic pattern
An original image data representing an image read out from an original is removed with noise of a predetermined periodic pattern, if any, and storage image data is generated. The storage image data...
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7394574 |
Method and device for electronically correcting the color value in film scanners
A method for digitizing images stored on film material has, after the image conversion by means of a digitizing device firstly an electronic color value correction independent of user inputs. A...
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7349588 |
Automatic meter reading
A meter is read. An image on a face of the meter is captured. Optical character recognition of digits of a digital display on the face of the meter is performed. At least one stored template is...
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7277598 |
Image processing apparatus, certification photograph taking apparatus, and certification photograph creation system
A certification photograph creation system includes a certification photograph taking apparatus, an image input apparatus to input a photographed image, an image processing apparatus and a printer...
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7190833 |
Mobile device and transmission system
The invention relates to a mobile device with a built-in image capture device, and a character recognition function to present the information gathered with the character recognition result. With...
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7069215 |
Systems and methods for extracting meaning from multimodal inputs using finite-state devices
Finite-state systems and methods allow multiple input streams to be parsed and integrated by a single finite-state device. These systems and methods not only address multimodal recognition, but are...
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6958714 |
Encoding method and encoding apparatus, and computer program and computer readable storage medium
This invention re-encodes encoded data (e.g., PackBits encoded data), which is expressed by a data format of a runlength code part indicating the runlength of the same data and a data part...
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6927774 |
Character display device and character display method
A character display device and method therefor are adapted to obtain a proximal reference point of each character comprising a character series and calculate display coordinates of each character...
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6898315 |
Feature extraction for real-time pattern recognition using single curve per pattern analysis
A feature extractor samples points on an input pattern drawn in real time. In addition to X and Y coordinates, each sample has an up/down or Z coordinate value representing whether or not the...
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6859556 |
Word recognizing apparatus for dynamically generating feature amount of word and method thereof
A word recognizing apparatus extracts the feature amount from a given image, and dynamically composes the feature amount of a candidate word to be recognized which is registered in a word list,...
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6795579 |
Method and apparatus for recognizing handwritten chinese characters
A method for recognizing handwritten Chinese characters based on stroke recognition comprises steps of: recognizing handwritten strokes, updating stroke code sequences; retrieving in...
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6721452 |
System and method of handwritten character recognition
An “activity”-based system and method for on-line character recognition that requires reduced amounts of memory for code or data, is alphabet-independent, and can be trained by entering the...
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6704449 |
Method of extracting text from graphical images
A method for extracting text from images whereby the intensity of each color plane of the image is identified, the color plane with the highest intensity is converted into a black and white image,...
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6690821 |
Determining the font of text in an image
Systems and methods are provided for automatically determining the font of text in a captured document image. Sequences of turns (left, right, straight) around the boundaries of connected...
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6636631 |
Optical character reading method and system for a document with ruled lines and its application
A method of recognizing characters of a document including ruled lines. After separating the characters from the ruled lines, a bounding box and a corresponding character pattern are extracted for...
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6580826 |
Method and apparatus for parametric representation of handwritten symbols
A method for encoding handwritten symbols operates upon penstroke data received from a device capable of sampling a stylus position at discrete intervals. Each handwritten symbol is segmented into...
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6532303 |
Line direction deciding device, image inclination detecting device and image inclination correcting device
A line-direction deciding device that can decide the direction of lines in an image having a complicated layout of characters as well as line directions other than vertical and horizontal line...
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6393151 |
Pattern reading system
An apparatus for recognizing visual patterns of handprinted characters or the like by means of an optical character reader which reads the patterns by a so-called outermost point method. While...
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6389166 |
On-line handwritten Chinese character recognition apparatus
An on-line handwritten Chinese character recognition apparatus based on character shapes uses a reference file for look-up of compressed codes-sequence codes in a conventional input method founded...
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6240209 |
Method for deriving character features in a character recognition system
A method for deriving character features in a character recognition system for recognising characters, such as letters and digits, and a character recognition system in which the method is applied....
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6229920 |
Method of classifying and recognizing patterns by additive contour extraction and averaging
A method for classifying and recognizing patterns which includes producing a pattern to be classified and recognized of an m-dimensional object. The object to be classified and recognized is...
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6181432 |
Printing system, printing apparatus and printing control method
When a host transfers only an image to a printing apparatus to make it print out the image, a heavy load is imposed on the host, and the data size to be transferred is large, resulting in a long...
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6178263 |
Method of estimating at least one run-based font attribute of a group of characters
Font attributes of characters or letters are estimated by an optical character recognition system using character, run or stroke-based techniques with or without character identification information.
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6157738 |
System for extracting attached text
A method for identifying and extracting text data from a table-cell frame. The method includes the steps of tracing connected components of a document image, tracing white contours within a...
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6148119 |
Character recognition in input images divided into areas
An image processing apparatus includes an image input device for photoelectrically converting a document image which has been optically read and for inputting the converted document image as image...
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6075892 |
Methods for determining font attributes of characters
Font attributes of characters or letters are estimated by an optical character recognition system using character, run or stroke-based techniques with or without character identification information.
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6052481 |
Automatic method for scoring and clustering prototypes of handwritten stroke-based data
A system and method for processing stroke-based handwriting data for the purposes of automatically scoring and clustering the handwritten data to form letter prototypes. The present invention...
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5982929 |
Pattern recognition method and system
A method for pattern recognition of indicia composed of alphabetical characters of a language in the form of at least a part of a word. The shape of each character in a word is established by means...
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5923790 |
Method and apparatus for detecting vertical direction of document
The present invention provides a method and an apparatus for reliably detecting the upside and downside vertical direction of an image, such as characters on a document. The method involves judging...
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5920647 |
Method and apparatus for recognition of hand-printed characters represented as an electronic ink stream using a box filtering technique
A method and apparatus to recognize hand-printed characters represented as an electronic ink stream. A first filtering box (300) is defined around a center of a first output point (324) in the...
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5920644 |
Apparatus and method of recognizing pattern through feature selection by projecting feature vector on partial eigenspace
A feature extracting unit extracts an input feature vector from an input character pattern. A learning unit computes orthonormal bases of a partial eigenspace of an original feature space from...
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5911005 |
Character recognition method and system
The current invention is directed to further improve the character recognition process based upon the comparison of identification value in a sample image and a reference image by adjusting the...
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5889889 |
Method and apparatus for machine recognition of handwritten symbols from stroke-parameter data
A method is described for the automatic recognition of at least one handwritten symbol. A representation of such symbol is provided, in a data storage medium, as a sequence of one or more discrete...
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5864635 |
Distinguishing gestures from handwriting in a pen based computer by stroke analysis
Pre-recognition analysis on stroke characteristics such as the count, size and position of each stroke in real-time as it is drawn improves recognition accuracy. After each stroke, the set of...
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5857029 |
Method and apparatus for non-contact signature imaging
A portable, hand-held apparatus for capturing a gray scale image of a signature within a box having fiducial marks in the corners. Portions of the image outside the box are trimmed away and the box...
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5854855 |
Method and system using meta-classes and polynomial discriminant functions for handwriting recognition
A method and system of identifying text in a handwriting input is provided. The system includes a feature extractor (30) and a classifier (32). The feature extractor (30) extracts a plurality of...
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5802205 |
Method and system for lexical processing
A lexical processor and its method of use is provided. The lexical processor includes an input interface (300) and a word generator (302) for producing an output as a function of an input word and...
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5781660 |
Image processing method and apparatus
A method, apparatus and computer program product for extracting the line of text to be read, and compensating for any inclination or shifting in the column direction of the scanned character...
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5764797 |
Method and system for modeling handwriting using polynomials as a function of time
A method and system for modeling handwriting using polynomials as a function of time. In a preferred embodiment, a user inputs handwriting by writing with an electronic pen on an electronic tablet....
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5757964 |
System and method for automatic subcharacter unit and lexicon generation for handwriting recognition
A system for automatic subcharacter unit and lexicon generation for handwriting recognition comprises a processing unit, a handwriting input device, and a memory wherein a segmentation unit, a...
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5754689 |
Image processing method and apparatus
There is provided an image processing method whereby a slope at a first position on an outline of character data in input image data is extracted and phase data at a second position on a background...
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5729629 |
Handwritten symbol recognizer
A handwritten symbol recognizer adapted to automatically recognize various handwritten symbols including Kanji character is disclosed. The symbol recognizer includes a data processor coupled to a...
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5666440 |
Method and apparatus for extracting outline data from bi-level image data
A bi-level image is represented by an array of pixels. Code words are generated which represent outline tracing directions defined at points between the pixels respectively. The outline tracing...
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5659633 |
Character recognition method utilizing compass directions and torsion points as features
A method of recognizing a character is described which includes the following operations: (a) measuring the angle of the tangent to the character at each of a plurality of sample points on the...
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5644366 |
Image reproduction involving enlargement or reduction of extracted contour vector data for binary regions in images having both binary and halftone regions
When an image is input, that input image is separated into a halftone region, such as a photograph, and a binary region, such as a character/line. Contour vector data along an edge of the separated...
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5555556 |
Method and apparatus for document segmentation by background analysis
A system for extracting document elements from a document using major white regions includes an input port for inputting a signal representing the document image, a connected component generator...
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5544279 |
Fuzzy logic recognition device which determines the mode of an unknown move using fuzzy set theory
A fuzzy logic recognition device has a plurality of sets of feature extraction windows, each set storing the predetermined features for one feature class therein, and comparing the stored features...
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5485531 |
Character-feature extraction device
A feature recognition method and apparatus is described where in one embodiment the digitized two-dimensional pattern or image usually of a character to be recognized is subjected first to...
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5267332 |
Image recognition system
An image recognition system includes a method and apparatus in which images are characterized and compared on the basis of internal structure, which is independent of image size and image...
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5237627 |
Noise tolerant optical character recognition system
Disclosed is a system of optical character recognition that first segments a page image into character images. A set of features is extracted and compared to proto-features from a template in order...
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