Source: http://www.google.com/patents/US7706611?dq=5822523
Timestamp: 2015-11-26 12:41:33
Document Index: 500615950

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60']

Patent US7706611 - Method and system for character recognition - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsCharacter recognition is described. In one embodiment, it may use matched sequences rather than character shape to determine a computer-legible result....http://www.google.com/patents/US7706611?utm_source=gb-gplus-sharePatent US7706611 - Method and system for character recognitionAdvanced Patent SearchPublication numberUS7706611 B2Publication typeGrantApplication numberUS 11/210,260Publication dateApr 27, 2010Filing dateAug 23, 2005Priority dateFeb 15, 2004Fee statusPaidAlso published asEP1747508A2, EP1747508A4, EP1749260A2, EP1749260A4, EP1756704A2, EP1756704A4, EP1756729A2, EP1756729A4, EP1759272A2, EP1759272A4, EP1759273A2, EP1759273A4, EP1759274A2, EP1759274A4, EP1759275A2, EP1759275A4, EP1759276A2, EP1759276A4, EP1759277A2, EP1759277A4, EP1759281A2, EP1759281A4, EP1761841A2, EP1761841A4, EP1763842A2, EP1763842A4, EP1880301A2, EP1880301A4, EP2490152A1, US7421155, US7437023, US7593605, US7596269, US7599580, US7599844, US7606741, US7702624, US7707039, US7742953, US7818215, US7831912, US8005720, US8019648, US8064700, US8214387, US8442331, US8447144, US8515816, US8521772, US8619147, US8799303, US8831365, US20050234851, US20060023945, US20060026078, US20060026140, US20060029296, US20060036462, US20060036585, US20060041538, US20060041590, US20060041828, US20060047639, US20060050996, US20060061806, US20060078207, US20060087683, US20060119900, US20060294094, US20070011140, US20100177970, US20100183246, US20110019919, US20110044547, US20110085211, US20110154507, US20120041941, US20120297277, US20130132367, US20130201527, WO2005096750A2, WO2005096750A3, WO2005096755A2, WO2005096755A3, WO2005098596A2, WO2005098596A3, WO2005098597A2, WO2005098597A3, WO2005098598A2, WO2005098598A3, WO2005098599A2, WO2005098599A3, WO2005098600A2, WO2005098600A3, WO2005098601A2, WO2005098601A3, WO2005098602A2, WO2005098602A3, WO2005098603A2, WO2005098603A3, WO2005098604A2, WO2005098604A3, WO2005098605A2, WO2005098605A3, WO2005098606A2, WO2005098606A3, WO2005098607A2, WO2005098607A3, WO2005098610A2, WO2005098610A3, WO2005114380A2, WO2005114380A3Publication number11210260, 210260, US 7706611 B2, US 7706611B2, US-B2-7706611, US7706611 B2, US7706611B2InventorsMartin T. King, Dale L. Grover, Clifford A. Kushler, James Q. Stafford-FraserOriginal AssigneeExbiblio B.V.Export CitationBiBTeX, EndNote, RefManPatent Citations (518), Non-Patent Citations (137), Referenced by (54), Classifications (90), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetMethod and system for character recognition
US 7706611 B2Abstract
1. A method in a computing system for identifying a sequence of glyphs, the method comprising:
when the glyph matches a retained glyph, assigning to the glyph a character identity associated with the retained glyph;
when the glyph does not match a retained glyph:
retaining the glyph;
selecting a character identity for the unmatched glyph; and
assigning the selected character identity to the unmatched glyph;
2. The method of claim 1, wherein the assigned character identities relate to a geographical or ordinal position of the glyph within the sequence of glyphs.
3. The method of claim 1, wherein identifying the sequence of glyphs using the generated representation includes identifying a single sequence of glyphs from multiple possible sequences of glyphs represented by the generated representation by comparing shape information associated with the generated representation to shape information associated with the identified multiple possible sequences of glyphs.
4. The method of claim 1, wherein determining whether a glyph matches a retained glyph includes determining that the glyph matches a retained glyph to a certain degree of probability.
5. The method of claim 1, wherein retaining the glyph includes adding an image of the glyph to a template of glyph images.
6. A system for identifying a text sequence within an image, the system comprising:
an image reception component, wherein the image reception component is programmed to receive an image of a text sequence, the text sequence including multiple glyphs unknown to the system;
a glyph image component, wherein the glyph image component is programmed to associate an identity to a subset of the multiple glyphs based on (1) similarities in shape between the glyphs within the image of the text sequence, and (2) relative locations of the glyphs within the image of the text sequence; and
a text representation component, wherein the text representation component is programmed to generate a text representation by replacing the glyphs with the associated identities.
a recognition component, wherein the recognition component is programmed to compare the generated text representation with a database of text representations to recognize the text sequence represented by the generated text representation.
a match component, wherein the match component is programmed to compare the generated text representation with a database of text representations to identify two or more candidate text representations that match the generated text representation; and
a dictionary component, wherein the dictionary component is programmed to query a dictionary to assign probabilities to the candidate text representations, where the assigned probabilities are based on a relative linguistic likelihood of the candidate text representation.
a shape component, wherein the shape component is programmed to compare shape information associated with the generated text representation to shape information associated with the candidate text representations. Description
This application is a Continuation-In-Part of the following, each of which is hereby incorporated by reference in its entirety: U.S. patent application Ser. No. 11/004,637 filed on Dec. 3, 2004, U.S. patent application Ser. No. 11/097,961, filed Apr. 1, 2005, entitled METHODS AND SYSTEMS FOR INITIATING APPLICATION PROCESSES BY DATA CAPTURE FROM RENDERED DOCUMENTS; U.S. patent application Ser. No. 11/097,093, filed Apr. 1, 2005 now abandoned, entitled DETERMINING ACTIONS INVOLVING CAPTURED INFORMATION AND ELECTRONIC CONTENT ASSOCIATED WITH RENDERED DOCUMENTS, U.S. patent application Ser. No. 11/098,038, filed Apr. 1, 2005 now U.S. Pat. No. 7,599,844, entitled CONTENT ACCESS WITH HANDHELD DOCUMENT DATA CAPTURE DEVICES, U.S. patent application Ser. No. 11/098,014, filed Apr. 1, 2005, entitled SEARCH ENGINES AND SYSTEMS WITH HANDHELD DOCUMENT DATA CAPTURE DEVICES, U.S. patent application Ser. No. 11/097,103, filed Apr. 1, 2005 now U.S. Pat. No. 7,596,269, entitled TRIGGERING ACTIONS IN RESPONSE TO OPTICALLY OR ACOUSTICALLY CAPTURING KEYWORDS FROM A RENDERED DOCUMENT, U.S. patent application Ser. No. 11/098,043, filed Apr. 1, 2005, entitled SEARCHING AND ACCESSING DOCUMENTS ON PRIVATE NETWORKS FOR USE WITH CAPTURES FROM RENDERED DOCUMENTS, U.S. patent application Ser. No. 11/097,981, filed Apr. 1, 2005 now U.S. Pat. No. 7,606,741, entitled INFORMATION GATHERING SYSTEM AND METHOD, U.S. patent application Ser. No. 11/097,089, filed Apr. 1, 2005, entitled DOCUMENT ENHANCEMENT SYSTEM AND METHOD, U.S. patent application Ser. No. 11/097,835, filed Apr. 1, 2005, entitled PUBLISHING TECHNIQUES FOR ADDING VALUE TO A RENDERED DOCUMENT, U.S. patent application Ser. No. 11/098,016, filed Apr. 1, 2005 now U.S. Pat. No. 7,421,155, entitled ARCHIVE OF TEXT CAPTURES FROM RENDERED DOCUMENTS, U.S. patent application Ser. No. 11/097,828, filed Apr. 1, 2005, entitled ADDING INFORMATION OR FUNCTIONALITY TO A RENDERED DOCUMENT VIA ASSOCIATION WITH AN ELECTRONIC COUNTERPART, U.S. patent application Ser. No. 11/097,833, filed Apr. 1, 2005, entitled AGGREGATE ANALYSIS OF TEXT CAPTURES PERFORMED BY MULTIPLE USERS FROM RENDERED DOCUMENTS, U.S. patent application Ser. No. 11/097,836, filed Apr. 1, 2005, entitled ESTABLISHING AN INTERACTIVE ENVIRONMENT FOR RENDERED DOCUMENTS, U.S. patent application Ser. No. 11/098,042, filed Apr. 1, 2005 now U.S. Pat. No. 7,593,605, entitled DATA CAPTURE FROM RENDERED DOCUMENTS USING HANDHELD DEVICE, U.S. patent application Ser. No. 11/096,704, filed Apr. 1, 2005 now U.S. Pat. No. 7,599,580, entitled CAPTURING TEXT FROM RENDERED DOCUMENTS USING SUPPLEMENTAL INFORMATION, U.S. patent application Ser. No. 11/110,353, filed Apr. 19, 2005, entitled PROCESSING TECHNIQUES FOR VISUAL CAPTURE DATA FROM A RENDERED DOCUMENT, U.S. patent application Ser. No. 11/131,945, filed May 17, 2005 now abandoned, entitled PROCESSING TECHNIQUES FOR TEXT CAPTURE FROM A RENDERED DOCUMENT, U.S. patent application Ser. No. 11/185,908, filed Jul. 19, 2005, entitled AUTOMATIC MODIFICATION OF WEB PAGES, U.S. patent application Ser. No. 11/208,408, filed Aug. 18, 2005, entitled SCANNER HAVING CONNECTED AND UNCONNECTED OPERATIONAL BEHAVIORS, U.S. patent application Ser. No. 11/208,457, filed Aug. 18, 2005, entitled LOCATING ELECTRONIC INSTANCES OF DOCUMENTS BASED ON RENDERED INSTANCES, DOCUMENT FRAGMENT DIGEST GENERATION, AND DIGEST BASED DOCUMENT FRAGMENT DETERMINATION, U.S. patent application Ser. No. 11/208,458, filed Aug. 18, 2005, entitled METHODS, SYSTEMS AND COMPUTER PROGRAM PRODUCTS FOR DATA GATHERING IN A DIGITAL AND HARD COPY DOCUMENT ENVIRONMENT, U.S. patent application Ser. No. 11/208,461, filed Aug. 18, 2005, entitled APPLYING SCANNED INFORMATION TO IDENTIFY CONTENT.
This application claims priority to, and incorporates by reference in their entirety, the following U.S. Provisional Patent Applications: Application No. 60/604,103 filed on Aug. 23, 2004, Application No. 60/604,098 filed on Aug. 23, 2004, Application No. 60/604,100 filed on Aug. 23, 2004, Application No. 60/604,102 filed on Aug. 23, 2004, Application No. 60/605,229 filed on Aug. 27, 2004, Application No. 60/605,105 filed on Aug. 27, 2004, Application No. 60/613,243 filed on Sep. 27, 2004, Application No. 60/613,628 filed on Sep. 27, 2004, Application No. 60/613,632 filed on Sep. 27, 2004, Application No. 60/613,589 filed on Sep. 27, 2004, Application No. 60/613,242 filed on Sep. 27, 2004, Application No. 60/613,602 filed on Sep. 27, 2004, Application No. 60/613,340 filed on Sep. 27, 2004, Application No. 60/613,634 filed on Sep. 27, 2004, Application No. 60/613,461 filed on Sep. 27, 2004, Application No. 60/613,455 filed on Sep. 27, 2004, Application No. 60/613,460 filed on Sep. 27, 2004, Application No. 60/613,400 filed on Sep. 27, 2004, Application No. 60/613,456 filed on Sep. 27, 2004, Application No. 60/613,341 filed on Sep. 27, 2004, Application No. 60/613,361 filed on Sep. 27, 2004, Application No. 60/613,454 filed on Sep. 27, 2004, Application No. 60/613,339 filed on Sep. 27, 2004, Application No. 60/613,633 filed on Sep. 27, 2004, Application No. 60/615,378 filed on Oct. 1, 2004, Application No. 60/615,112 filed on Oct. 1, 2004, Application No. 60/615,538 filed on Oct. 1, 2004, Application No. 60/617,122 filed on Oct. 7, 2004, Application No. 60/622,906 filed on Oct. 28, 2004, Application No. 60/633,452 filed on Dec. 6, 2004, Application No. 60/633,678 filed on Dec. 6, 2004, Application No. 60/633,486 filed on Dec. 6, 2004, Application No. 60/633,453 filed on Dec. 6, 2004, Application No. 60/634,627 filed on Dec. 9, 2004, Application No. 60/634,739 filed on Dec. 9, 2004, Application No. 60/647,684 filed on Jan. 26, 2005, Application No. 60/648,746 filed on Jan. 31, 2005, Application No. 60/653,372 filed on Feb. 15, 2005, Application No. 60/653,663 filed on Feb. 16, 2005, Application No. 60/653,669 filed on Feb. 16, 2005, Application No. 60/653,899 filed on Feb. 16, 2005, Application No. 60/653,679 filed on Feb. 16, 2005, Application No. 60/653,847 filed on Feb. 16, 2005, Application No. 60/654,379 filed on Feb. 17, 2005, Application No. 60/654,368 filed on Feb. 18, 2005, Application No. 60/654,326 filed on Feb. 18, 2005, Application No. 60/654,196 filed on Feb. 18, 2005, Application No. 60/655,279 filed on Feb. 22, 2005, Application No. 60/655,280 filed on Feb. 22, 2005, Application No. 60/655,987 filed on Feb. 22, 2005, Application No. 60/655,697 filed on Feb. 22, 2005, Application No. 60/655,281 filed on Feb. 22, 2005, and Application No. 60/657,309 filed on Feb. 28, 2005.
Text from a rendered document is captured 100, typically in optical form by an optical scanner or audio form by a voice recorder, and this image or sound data is then processed 102, for example to remove artifacts of the capture process or to improve the signal-to-noise ratio. A recognition process 104 such as OCR, speech recognition, or autocorrelation then converts the data into a signature, comprised in some embodiments of text, text offsets, or other symbols. Alternatively, the system performs an alternate form of extracting document signature from the rendered document. The signature represents a set of possible text transcriptions in some embodiments. This process may be influenced by feedback from other stages, for example, if the search process and context analysis 110 have identified som