Patents Assigned to I.R.I.S.
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Patent number: 8995780Abstract: A method for creating a binary mask image from an inputted digital image of a scanned document, including the steps of creating a binarized image by binarizing the inputted digital image, detecting first text regions representing light text on a dark background, and inverting the first text regions, such that the inverted first text regions are interpretable in the same way as dark text on a light background. A method for comparing in a binary image a first pixel blob with a second pixel blob to determine whether they represent matching symbols, including the steps of detecting a line in one blob not present in the other and/or determining if one of the blobs represents an italicized symbol where the other does not.Type: GrantFiled: December 23, 2013Date of Patent: March 31, 2015Assignee: I.R.I.S.Inventors: Michel Dauw, Pierre De Muelenaere
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Patent number: 8913836Abstract: Method, system, device and computer program product for projective correction of an image containing at least one text portion that is distorted by perspective. The method includes a step of image binarization involving binarizing said image. The method includes connected component analysis. Pixel blobs are detected in said at least one text portion of said binarized image in connected component analysis. The method includes horizontal vanishing point determination, including estimating text baselines by means of eigenpoints of said pixel blobs and determining a horizontal vanishing point of said at least one text portion by means of said text baselines. The method also includes vertical vanishing point determination. A vertical vanishing point is determined for said at least one text portion on the basis of vertical features thereof. The method includes projective correction. Perspective in said image is corrected on the basis of said horizontal and vertical vanishing points.Type: GrantFiled: December 20, 2013Date of Patent: December 16, 2014Assignee: I.R.I.S.Inventors: Jianglin Ma, Michel Dauw, Pierre De Muelenaere, Olivier Dupont
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Patent number: 8897600Abstract: Method, system, device and computer program product for determining vanishing point candidates of a text portion in an image document distorted by perspective. The method includes the steps of image binarization, connected component analysis, estimating a number of text lines in a Cartesian coordinate system, transforming the text lines to data points in a homogenous coordinate system, assigning a confidence level to the data points, grouping a number of data points into a priority sample array, clustering the data points in the priority sample array into a number of sample groups and assigning a group confidence value to each sample group. A RANSAC algorithm is applied to determine among the data points a set of inliers, initiated with the sample group having the highest group confidence value. A vanishing point candidate is determined from the text lines corresponding to the set of inliers.Type: GrantFiled: December 20, 2013Date of Patent: November 25, 2014Assignee: I.R.I.S.Inventors: Jianglin Ma, Michel Dauw, Pierre De Muelenaere, Olivier Dupont
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Patent number: 8811751Abstract: Method, system, device and computer program product for projective correction of an image containing at least one text portion that is distorted by perspective. The method includes the steps of image binarization, connected component analysis, horizontal vanishing point determination, vertical vanishing point determination and projective correction. The horizontal vanishing point is determined by estimating text baselines by means of position determining pixels of pixel blobs, identifying horizontal vanishing point candidates from the baselines, and determining a horizontal vanishing point from the candidates. The vertical vanishing point is determined on the basis of vertical features of the text portion. The method includes a first elimination step on the level of position determining pixels, a second elimination step on the level of text baselines and a third elimination step on the level of horizontal vanishing point candidates.Type: GrantFiled: December 20, 2013Date of Patent: August 19, 2014Assignee: I.R.I.S.Inventors: Jianglin Ma, Michel Dauw, Pierre De Muelenaere, Olivier Dupont
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Patent number: 8786918Abstract: Battery-powered portable scanner, comprising: a scanning unit for scanning documents and forming digital representations thereof; a processor, communicatively connected to the scanning unit and provided for controlling the scanning operation; at least a first embedded storage capabilities, each of which is communicatively connected to the processor and each of which comprises either an internal memory for internally storing the digital representations or a communication link to an external storage medium for externally storing the digital representations. The processor is provided for enabling autonomous operation without connection to a terminal. The processor may be provided with an embedded routing application which is provided for routing the digital representations to a predetermined selection among the embedded storage capabilities.Type: GrantFiled: August 16, 2012Date of Patent: July 22, 2014Assignee: I.R.I.S.Inventors: Pierre De Muelenaere, Michel Dauw, Olivier Dupont, Patrick Verleysen
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Publication number: 20140177954Abstract: A method for creating a binary mask image from an inputted digital image of a scanned document, including the steps of creating a binarized image by binarizing the inputted digital image, detecting first text regions representing light text on a dark background, and inverting the first text regions, such that the inverted first text regions are interpretable in the same way as dark text on a light background. A method for comparing in a binary image a first pixel blob with a second pixel blob to determine whether they represent matching symbols, including the steps of detecting a line in one blob not present in the other and/or determining if one of the blobs represents an italicized symbol where the other does not.Type: ApplicationFiled: December 23, 2013Publication date: June 26, 2014Applicant: I.R.I.S.Inventors: Michel DAUW, Pierre De Muelenaere
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Patent number: 8699100Abstract: Battery-powered portable sheet-fed scanner, comprising: a scanning unit (21-23) for scanning documents and forming digital representations thereof; a sheet feeder (28) for feeding a document past the scanning unit; a processor (20), communicatively connected to the scanning unit and provided for controlling the scanning operation; a plurality of embedded storage capabilities, each of which is communicatively connected to the processor and each of which comprises either an internal memory (26) for internally storing the digital representations or a communication link (24; 25) to an external storage medium for externally storing the digital representations. The processor is provided with an embedded routing application which is provided for routing the digital representations to a predetermined selection among the embedded storage capabilities.Type: GrantFiled: February 9, 2011Date of Patent: April 15, 2014Assignee: I.R.I.S.Inventors: Pierre De Muelenaere, Michel Dauw, Olivier Dupont, Patrick Verleysen
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Patent number: 8666185Abstract: A first aspect of the invention relates to a method for creating a binary mask image from an a inputted digital image of a scanned document, comprising the steps of creating a binarized image by binarizing the inputted digital image, detecting first text regions representing light text on a dark background, and inverting the first text regions, such that the inverted first text regions are interpretable in the same way as dark text on a light background. A second aspect of the invention relates to a method for comparing in a binary image a first pixel blob with a second pixel blob to determine whether they represent matching symbols, comprising the steps of detecting a line in one blob not present in the other and/or determining if one of the blobs represents an italicized symbol where the other does not.Type: GrantFiled: November 17, 2011Date of Patent: March 4, 2014Assignee: I.R.I.S.Inventors: Michel Dauw, Pierre Demuelenaere
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Publication number: 20140033641Abstract: The auxiliary device (1) for the installation of plate-shaped products (M) for covering floors and/or walls includes: a first element (2) having: a substantially flat base body (3) for supporting two or more adjacent plate-shaped products (M) and a gripping body (4) which is associated substantially at right angles with the base body (3), the base body (3) being suited to support the plate-shaped products (M) from opposite sides of the gripping body (4); a second element (6) associable with the gripping body (4) for fastening the plate-shaped products (M) between the base body (3) and the second element (6) to define the coplanarity of the plate-shaped products (M); and screw connection elements (7) suited to allow the coupling by screwing of the second element (6) on the first element (2) around a rotation axis (R) substantially at right angles to the base body (3).Type: ApplicationFiled: August 2, 2012Publication date: February 6, 2014Applicant: S.I.R.I S.R.L.Inventor: Franco TREVISI
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Patent number: 8463054Abstract: A pattern recognition process, a non-transitory computer program product, and a mobile terminal for pattern recognition. An input pattern is normalized and a reliable pattern is generated from the normalized pattern by using at least one morphological operator. The distance between the reliable pattern and selected templates which are selected from a template library using a decision tree, is calculated. The reliable patterns are classified into at least one of the classes of the selected templates by at least one non-parametric classification method.Type: GrantFiled: April 9, 2012Date of Patent: June 11, 2013Assignee: I.R.I.S.Inventors: Pierre De Muelenaere, Michel Dauw, Olivier Dupont, Patrick Verleysen
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Patent number: 8411940Abstract: Method for up-scaling a color image prior to performing subsequent processing on said color image, comprising the steps of converting the color image into multiple image layers distinguishable from each other and up-scaling at least one of said multiple image layers. The up-scaling is tuned towards the subsequent processing, for example luminance is upscaled at higher quality than chrominance. Further, a method for interpreting information present on digitally acquired documents, comprising the steps of: (i) determining a country; (ii) identifying a list of languages and character sets in use in said country; (iii) performing optical character recognition simultaneously using all languages and character sets of the list; (iv) performing field parsing to identify fields in the digitally acquired document on the basis of international as well as country-specific field recognition rules; (v) storing the recognized information according to the identified fields in a database.Type: GrantFiled: August 14, 2008Date of Patent: April 2, 2013Assignee: I.R.I.S.Inventors: Michel Dauw, Patrick Verleysen, Xavier Gallez, Pierre De Muelenaere
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Publication number: 20130039589Abstract: Pattern recognition process that includes, starting from an input pattern: normalization of the input pattern into a normalized pattern of predetermined size; generation of a reliable pattern from the normalized pattern by using at least one morphological operator; calculation of a distance between the reliable pattern and selected templates which are selected from a template library; classification of the reliable patterns into at least one of the classes of the selected templates by means of at least one non-parametric classification method, which uses the classes of the selected templates and the calculated distances as inputs and outputs identified classes along with confidence levels.Type: ApplicationFiled: March 22, 2012Publication date: February 14, 2013Applicant: I. R. I. S.Inventors: Pierre DE MUELENAERE, Michel Dauw, Olivier Dupont, Patrick Verleysen
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Publication number: 20130039591Abstract: Pattern recognition process that includes, starting from an input pattern: normalization of the input pattern into a normalized pattern of predetermined size; generation of a reliable pattern from the normalized pattern by using at least one morphological operator; calculation of a distance between the reliable pattern and selected templates which are selected from a template library; classification of the reliable patterns into at least one of the classes of the selected templates by means of at least one non-parametric classification method, which uses the classes of the selected templates and the calculated distances as inputs and outputs identified classes along with confidence levels.Type: ApplicationFiled: April 9, 2012Publication date: February 14, 2013Applicant: I.R.I.S.Inventors: Pierre De Muelenaere, Michel Dauw, Olivier Dupont, Patrick Verleysen
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Publication number: 20130006607Abstract: Method for up-scaling a color image prior to performing subsequent processing on said color image, comprising the steps of converting the color image into multiple image layers distinguishable from each other and up-scaling at least one of said multiple image layers. The up-scaling is tuned towards the subsequent processing, for example luminance is upscaled at higher quality than chrominance. Further, a method for interpreting information present on digitally acquired documents, comprising the steps of: (i) determining a country; (ii) identifying a list of languages and character sets in use in said country; (iii) performing optical character recognition simultaneously using all languages and character sets of the list; (iv) performing field parsing to identify fields in the digitally acquired document on the basis of international as well as country-specific field recognition rules; (v) storing the recognized information according to the identified fields in a database.Type: ApplicationFiled: September 14, 2012Publication date: January 3, 2013Applicant: I.R.I.S.Inventors: Michel Dauw, Patrick Verleysen, Xavier Gallez, Pierre De Muelenaere
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Patent number: 8331706Abstract: A first aspect of the invention relates to a method for creating a binary mask image from an a inputted digital image of a scanned document, comprising the steps of creating a binarized image by binarizing the inputted digital image, detecting first text regions representing light text on a dark background, and inverting the first text regions, such that the inverted first text regions are interpretable in the same way as dark text on a light background. A second aspect of the invention relates to a method for comparing in a binary image a first pixel blob with a second pixel blob to determine whether they represent matching symbols, comprising the steps of detecting a line in one blob not present in the other and/or determining if one of the blobs represents an italicized symbol where the other does not.Type: GrantFiled: November 17, 2011Date of Patent: December 11, 2012Assignee: I.R.I.S.Inventors: Michel Dauw, Pierre Demuelenaere
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Publication number: 20120307316Abstract: Battery-powered portable scanner, comprising: a scanning unit for scanning documents and forming digital representations thereof; a processor, communicatively connected to the scanning unit and provided for controlling the scanning operation; at least a first embedded storage capabilities, each of which is communicatively connected to the processor and each of which comprises either an internal memory for internally storing the digital representations or a communication link to an external storage medium for externally storing the digital representations. The processor is provided for enabling autonomous operation without connection to a terminal. The processor may be provided with an embedded routing application which is provided for routing the digital representations to a predetermined selection among the embedded storage capabilities.Type: ApplicationFiled: August 16, 2012Publication date: December 6, 2012Applicant: I.R.I.S.Inventors: Pierre De Muelenaere, Michel Dauw, Oliver Dupont, Patrick Verleysen
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Publication number: 20120299881Abstract: A system for tracking and processing handwritten pen strokes, including: a digital pen to allow a user to write pen strokes on a substrate; a receiver station for use in combination with said digital pen and adapted for tracking said pen strokes and storing digital pen strokes which include electronic data representing said tracked pen strokes, said receiver station including a wireless transceiver adapted for communicating with a mobile terminal over a wireless connection to transfer said digital pen strokes to said mobile terminal; and a software application executable on said mobile terminal and including software code fragments for receiving and processing said transferred digital pen strokes.Type: ApplicationFiled: May 2, 2012Publication date: November 29, 2012Applicant: I.R.I.S.Inventors: Pierre DE MUELENAERE, Olivier DUPONT, Patrick VERLEYSEN, Michel DAUW
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Publication number: 20120093412Abstract: A first aspect of the invention relates to a method for creating a binary mask image from an a inputted digital image of a scanned document, comprising the steps of creating a binarized image by binarizing the inputted digital image, detecting first text regions representing light text on a dark background, and inverting the first text regions, such that the inverted first text regions are interpretable in the same way as dark text on a light background. A second aspect of the invention relates to a method for comparing in a binary image a first pixel blob with a second pixel blob to determine whether they represent matching symbols, comprising the steps of detecting a line in one blob not present in the other and/or determining if one of the blobs represents an italicized symbol where the other does not.Type: ApplicationFiled: November 17, 2011Publication date: April 19, 2012Applicant: I.R.I.S.Inventors: Michel Dauw, Pierre Demuelenaere
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Publication number: 20120063686Abstract: A first aspect of the invention relates to a method for creating a binary mask image from an a inputted digital image of a scanned document, comprising the steps of creating a binarized image by binarizing the inputted digital image, detecting first text regions representing light text on a dark background, and inverting the first text regions, such that the inverted first text regions are interpretable in the same way as dark text on a light background. A second aspect of the invention relates to a method for comparing in a binary image a first pixel blob with a second pixel blob to determine whether they represent matching symbols, comprising the steps of detecting a line in one blob not present in the other and/or determining if one of the blobs represents an italicized symbol where the other does not.Type: ApplicationFiled: November 17, 2011Publication date: March 15, 2012Applicant: I.R.I.SInventors: Michel DAUW, Pierre DEMUELENAERE
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Patent number: 8068684Abstract: A first aspect of the invention relates to a method for creating a binary mask image from an a inputted digital image of a scanned document, comprising the steps of creating a binarized image by binarizing the inputted digital image, detecting first text regions representing light text on a dark background, and inverting the first text regions, such that the inverted first text regions are interpretable in the same way as dark text on a light background. A second aspect of the invention relates to a method for comparing in a binary image a first pixel blob with a second pixel blob to determine whether they represent matching symbols, comprising the steps of detecting a line in one blob not present in the other and/or determining if one of the blobs represents an italicized symbol where the other does not.Type: GrantFiled: May 4, 2007Date of Patent: November 29, 2011Assignee: I.R.I.S.Inventors: Michel Dauw, Pierre Demuelenaere