Patents by Inventor Asaf Tzadok
Asaf Tzadok has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20130064471Abstract: A method, including calculating a first distance matrix for a first binary image and a second distance matrix for a second binary image, and calculating a first gradient matrix for the first distance matrix and a second gradient matrix for the second distance matrix. Using the calculated distance and gradient matrices, a displacement matrix is calculated that defines a change in position between elements in the first distance matrix and corresponding elements in the second distance matrix. Outlier elements are identified including elements in the displacement matrix satisfying at least one predetermined criterion, and the identified outlier are replaced with calculated interpolated values.Type: ApplicationFiled: September 14, 2011Publication date: March 14, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Vladimir Kluzner, Asaf Tzadok
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Patent number: 8384917Abstract: A method, system, and computer program product for font reproduction in electronic documents are provided. The method includes: receiving an image of a printed document; extracting pairs of consecutive characters from the image of the printed document; storing the extracted pairs as images of the characters; and reproducing the printed document as an electronic document with text of overlapping extracted character pair images. Extracting pairs of consecutive characters includes extracting adjacent horizontal characters, extracting spaced horizontal characters, and extracting spaced vertical characters. Reproducing the printed document as an electronic document includes reproducing the spacing between words and between lines using the spaced horizontal characters and the spaced vertical characters as anchors in the reproduced document.Type: GrantFiled: February 15, 2010Date of Patent: February 26, 2013Assignee: International Business Machines CorporationInventor: Asaf Tzadok
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Patent number: 8195003Abstract: A novel and useful method of processing digital images to correct distortion caused by a sheet-fed scanner. The method of the present invention derives a model which estimates the distortion. Match points are detected in the digital image and compared to match points of pre-defined templates. Treating the relative locations of the detected match points as polar coordinates (as opposed to Cartesian coordinates) enables a model to be derived to correct the distortion. In the event that there are multiple distortions to the digital image the digital image is partitioned into segments, with a separate model derived for each segment.Type: GrantFiled: June 30, 2008Date of Patent: June 5, 2012Assignee: International Business Machines CorporationInventors: Guy Rosman, Doron Tal, Asaf Tzadok
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Publication number: 20120099792Abstract: A computer implemented method for adaptive optical character recognition on a document with distorted characters includes performing a distortion-correction transformation on a segmented character of the document assuming the segmented character to be a candidate character. The method further includes comparing the transformed segmented character to the candidate character by calculating a comparison score. If the calculated score is within a predetermined range, the segmented character is identified with the candidate character. The method may be implemented in either of computer hardware configured to perform the method, or in computer software embodied in a non-transitory, tangible, computer-readable storage medium. Also disclosed are corresponding computer program product and data processing system.Type: ApplicationFiled: September 5, 2010Publication date: April 26, 2012Applicant: International Business Machines CorporationInventors: Dan Shmuel Chevion, Vladimir Kluzner, Asaf Tzadok, Eugeniusz Walach
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Patent number: 8116567Abstract: Techniques for performing page verification of a document are provided. The techniques include performing a recognition technique on a document to recognize one or more objects in the document, excluding the one or more recognized objects from the document, and performing page verification of the document, wherein page verification comprises visual inspection of the document excluding the one or more recognized objects.Type: GrantFiled: October 7, 2008Date of Patent: February 14, 2012Assignee: International Business Machines CorporationInventors: Asaf Tzadok, Eugeniusz Walach
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Patent number: 8103132Abstract: A method for correcting results of OCR or other scanned symbols. Initially scanning and performing OCR classification on a document. Clustering character/symbol classifications resulting from the OCR based on shapes. Creating super-symbols based on at least a first difference in the shapes of the clustered characters/symbols exceeding a first threshold. A carpet of super-symbols, emphasizing localized differences in similar symbols, is displayed for analysis testing.Type: GrantFiled: March 31, 2008Date of Patent: January 24, 2012Assignee: International Business Machines CorporationInventors: Asaf Tzadok, Eugeniusz Walach
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Patent number: 8086730Abstract: A method and system for monitoring a workstation. The system includes a monitoring system for monitoring activity on a workstation and an analysis module for comparing a monitored activity to specified activities in a work profile. The system may include an alert generator for generating an alert if the monitored activity does not conform to the work profile. The work profile may be a user profile of specified activities allowed to be performed by a user, and/or a transaction profile of a sequence of specified activities to be performed in a transaction by a user. The monitoring system includes an inputs monitor for monitoring inputs by the user into the workstation, a screen monitor which extracts content from a screen display viewed by a user, and a physical presence monitor to determine if a user is at his workstation.Type: GrantFiled: May 13, 2009Date of Patent: December 27, 2011Assignee: International Business Machines CorporationInventors: Tal Drory, Eugene Walach, Asaf Tzadok, Amnon Ribak
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Publication number: 20110299775Abstract: A computer implemented method for correcting distortion in an image of a page includes identifying a set of high quality (HQ) words in undistorted regions of one or more images of pages having content related to the content of the page. At least one distorted word in the image the page is identified such that each distorted word corresponds to a high quality word of the set. A global transformation function is generated for application to the image of the page so as to tranform the distorted word into its corresponding high quality word. The global transformation function is applied to pixels of the image of the page.Type: ApplicationFiled: June 8, 2010Publication date: December 8, 2011Applicant: International Business Machines CorporationInventors: Vladimir Kluzner, Asaf Tzadok, Eugeniusz Walach
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Patent number: 8014604Abstract: Disclosed embodiments of the invention provide automated global optimization methods and systems of OCR, tailored to each document being digitized. A document-specific database is created from an OCR scan of a document of interest, which contains an exhaustive listing of words in the document. Images of each word, taken from all the fonts encountered, are entered into the database and mapped to a corresponding textual representation. After entry of a first instance of an image of a word written in a particular font, each new occurrence of the word in that font can be quickly recognized by image processing techniques. The disclosed methods and systems may be used in conjunction with adaptive character recognition training and word recognition training of the OCR engines.Type: GrantFiled: April 16, 2008Date of Patent: September 6, 2011Assignee: International Business Machines CorporationInventors: Asaf Tzadok, Eugeniusz Walach
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Publication number: 20110199627Abstract: A method, system, and computer program product for font reproduction in electronic documents are provided. The method includes: receiving an image of a printed document; extracting pairs of consecutive characters from the image of the printed document; storing the extracted pairs as images of the characters; and reproducing the printed document as an electronic document with text of overlapping extracted character pair images. Extracting pairs of consecutive characters includes extracting adjacent horizontal characters, extracting spaced horizontal characters, and extracting spaced vertical characters. Reproducing the printed document as an electronic document includes reproducing the spacing between words and between lines using the spaced horizontal characters and the spaced vertical characters as anchors in the reproduced document.Type: ApplicationFiled: February 15, 2010Publication date: August 18, 2011Applicant: International Business Machines CorporationInventor: Asaf Tzadok
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Publication number: 20100293267Abstract: A method and system for monitoring a workstation. The system includes a monitoring system for monitoring activity on a workstation and an analysis module for comparing a monitored activity to specified activities in a work profile. The system may include an alert generator for generating an alert if the monitored activity does not conform to the work profile. The work profile may be a user profile of specified activities allowed to be performed by a user, and/or a transaction profile of a sequence of specified activities to be performed in a transaction by a user. The monitoring system includes an inputs monitor for monitoring inputs by the user into the workstation, a screen monitor which extracts content from a screen display viewed by a user, and a physical presence monitor to determine if a user is at his workstation.Type: ApplicationFiled: May 13, 2009Publication date: November 18, 2010Applicant: International Business Machines CorporationInventors: Amnon Ribak, Asaf Tzadok, Eugene Walach, Tal Drory
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Publication number: 20100086210Abstract: Techniques for performing page verification of a document are provided. The techniques include performing a recognition technique on a document to recognize one or more objects in the document, excluding the one or more recognized objects from the document, and performing page verification of the document, wherein page verification comprises visual inspection of the document excluding the one or more recognized objects.Type: ApplicationFiled: October 7, 2008Publication date: April 8, 2010Applicant: International Business Machines CorporationInventors: Asaf Tzadok, Eugeniusz Walach
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Publication number: 20090324119Abstract: A novel and useful method of processing digital images to correct distortion caused by a sheet-fed scanner. The method of the present invention derives a model which estimates the distortion. Match points are detected in the digital image and compared to match points of pre-defined templates. Treating the relative locations of the detected match points as polar coordinates (as opposed to Cartesian coordinates) enables a model to be derived to correct the distortion. In the event that there are multiple distortions to the digital image the digital image is partitioned into segments, with a separate model derived for each segment.Type: ApplicationFiled: June 30, 2008Publication date: December 31, 2009Inventors: Guy Rosman, Doron Tal, Asaf Tzadok
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Patent number: 7627177Abstract: A system is presented for scanning entire books or document all at once using an adaptive process where the book or document has known fonts and unknown fonts. The known fonts are processed through a verification system where sure words and error words are determined. Both the sure words and error words are sent to OCR training where they are re-OCR'ed and repeatedly verified until they meet a predetermined quality criteria. Characters or words not meeting the predetermined quality criteria receive additional OCR training until all the characters and words pass the predetermined quality criteria. Unknown fonts are scanned and clustered together by shape. Outliers in the shapes are manually keyed-in. Those symbols that are manually classified go to OCR training and then to the known type optimization process.Type: GrantFiled: November 24, 2008Date of Patent: December 1, 2009Assignee: International Business Machines CorporationInventors: Asaf Tzadok, Eugeniusz Walach
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Publication number: 20090263019Abstract: Disclosed embodiments of the invention provide automated global optimization methods and systems of OCR, tailored to each document being digitized. A document-specific database is created from an OCR scan of a document of interest, which contains an exhaustive listing of words in the document. Images of each word, taken from all the fonts encountered, are entered into the database and mapped to a corresponding textual representation. After entry of a first instance of an image of a word written in a particular font, each new occurrence of the word in that font can be quickly recognized by image processing techniques. The disclosed methods and systems may be used in conjunction with adaptive character recognition training and word recognition training of the OCR engines.Type: ApplicationFiled: April 16, 2008Publication date: October 22, 2009Inventors: Asaf Tzadok, Eugeniusz WALACH
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Publication number: 20090245659Abstract: A method for correcting results of OCR or other scanned symbols that initially scans a document, performs OCR classification on the scanned document. Clustering of characters/symbols classifications that results from the OCR based on shapes is followed by the creation of super-symbols based on at least first differences in the shapes of the clustered characters/symbols exceeding a first threshold. A carpet of the super symbols is displayed for analysis testing and that provides a display that emphasizes localized differences in similar symbols.Type: ApplicationFiled: March 31, 2008Publication date: October 1, 2009Applicant: International Business Machines CorporationInventors: Asaf Tzadok, Eugeniusz Walach
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Publication number: 20090220175Abstract: A system is presented for scanning entire books or document all at once using an adaptive process where the book or document has known fonts and unknown fonts. The known fonts are processed through a verification system where sure words and error words are determined. Both the sure words and error words are sent to OCR training where they are re-OCR'ed and repeatedly verified until they meet a predetermined quality criteria. Characters or words not meeting the predetermined quality criteria receive additional OCR training until all the characters and words pass the predetermined quality criteria. Unknown fonts are scanned and clustered together by shape. Outliers in the shapes are manually keyed-in. Those symbols that are manually classified go to OCR training and then to the known type optimization process.Type: ApplicationFiled: November 24, 2008Publication date: September 3, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Asaf Tzadok, Eugeniusz Walach
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Publication number: 20090212929Abstract: A method for verifying authenticity of a vehicle, including programming a device to sequentially change a device element to an altered device element according to a change device element algorithm, and attaching the device to the vehicle. The method also includes generating the altered device element, and verifying that the altered device element matches an expected device element generated by the algorithm.Type: ApplicationFiled: February 27, 2008Publication date: August 27, 2009Inventors: Tal Drory, Amir Geva, Asaf Tzadok, Eugeniusz Walach
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Patent number: 7480411Abstract: A system/method is presented for scanning entire books or document all at once using an adaptive process where the book or document has known fonts and unknown fonts. The known fonts are processed through a verification system where sure words and error words are determined. Both the sure words and error words are sent to OCR training where they are re-OCR'ed and repeatedly verified until they meet a predetermined quality criteria. Characters or word not meeting the predetermined quality criteria receive additional OCR training until all the characters and words pass the predetermined quality criteria. Unknown fonts are scanned and clustered together by shape. Outliers in the shapes are manually key-in. Those symbols that are manually classified go to OCR training and then to the known type optimization process.Type: GrantFiled: March 3, 2008Date of Patent: January 20, 2009Assignee: International Business Machines CorporationInventors: Asaf Tzadok, Eugeniusz Walach
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Patent number: 6360001Abstract: A method for automatic sorting includes receiving an item in a sequence of items to be sorted, each such item marked with a respective machine-readable identifying code and with respective characters in a location relative to the code that varies from one item to another in the sequence. A position of the code on the item is determined and, responsive to the position of the code, the location of the characters on the item is found. The characters are processed to determine a destination of the item.Type: GrantFiled: May 10, 2000Date of Patent: March 19, 2002Assignee: International Business Machines CorporationInventors: Israel Berger, Dan Chevion, Andrei Heilper, Yaakov Navon, Asaf Tzadok, Martin Tross, Eugene Wallach