Patents Assigned to I.R.I.S.
  • Patent number: 8995780
    Abstract: 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: Grant
    Filed: December 23, 2013
    Date of Patent: March 31, 2015
    Assignee: I.R.I.S.
    Inventors: Michel Dauw, Pierre De Muelenaere
  • Patent number: 8913836
    Abstract: 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: Grant
    Filed: December 20, 2013
    Date of Patent: December 16, 2014
    Assignee: I.R.I.S.
    Inventors: Jianglin Ma, Michel Dauw, Pierre De Muelenaere, Olivier Dupont
  • Patent number: 8897600
    Abstract: 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: Grant
    Filed: December 20, 2013
    Date of Patent: November 25, 2014
    Assignee: I.R.I.S.
    Inventors: Jianglin Ma, Michel Dauw, Pierre De Muelenaere, Olivier Dupont
  • Patent number: 8811751
    Abstract: 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: Grant
    Filed: December 20, 2013
    Date of Patent: August 19, 2014
    Assignee: I.R.I.S.
    Inventors: Jianglin Ma, Michel Dauw, Pierre De Muelenaere, Olivier Dupont
  • Patent number: 8786918
    Abstract: 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: Grant
    Filed: August 16, 2012
    Date of Patent: July 22, 2014
    Assignee: I.R.I.S.
    Inventors: Pierre De Muelenaere, Michel Dauw, Olivier Dupont, Patrick Verleysen
  • Publication number: 20140177954
    Abstract: 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: Application
    Filed: December 23, 2013
    Publication date: June 26, 2014
    Applicant: I.R.I.S.
    Inventors: Michel DAUW, Pierre De Muelenaere
  • Patent number: 8699100
    Abstract: 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: Grant
    Filed: February 9, 2011
    Date of Patent: April 15, 2014
    Assignee: I.R.I.S.
    Inventors: Pierre De Muelenaere, Michel Dauw, Olivier Dupont, Patrick Verleysen
  • Patent number: 8666185
    Abstract: 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: Grant
    Filed: November 17, 2011
    Date of Patent: March 4, 2014
    Assignee: I.R.I.S.
    Inventors: Michel Dauw, Pierre Demuelenaere
  • Publication number: 20140033641
    Abstract: 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: Application
    Filed: August 2, 2012
    Publication date: February 6, 2014
    Applicant: S.I.R.I S.R.L.
    Inventor: Franco TREVISI
  • Patent number: 8463054
    Abstract: 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: Grant
    Filed: April 9, 2012
    Date of Patent: June 11, 2013
    Assignee: I.R.I.S.
    Inventors: Pierre De Muelenaere, Michel Dauw, Olivier Dupont, Patrick Verleysen
  • Patent number: 8411940
    Abstract: 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: Grant
    Filed: August 14, 2008
    Date of Patent: April 2, 2013
    Assignee: I.R.I.S.
    Inventors: Michel Dauw, Patrick Verleysen, Xavier Gallez, Pierre De Muelenaere
  • Publication number: 20130039589
    Abstract: 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: Application
    Filed: March 22, 2012
    Publication date: February 14, 2013
    Applicant: I. R. I. S.
    Inventors: Pierre DE MUELENAERE, Michel Dauw, Olivier Dupont, Patrick Verleysen
  • Publication number: 20130039591
    Abstract: 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: Application
    Filed: April 9, 2012
    Publication date: February 14, 2013
    Applicant: I.R.I.S.
    Inventors: Pierre De Muelenaere, Michel Dauw, Olivier Dupont, Patrick Verleysen
  • Publication number: 20130006607
    Abstract: 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: Application
    Filed: September 14, 2012
    Publication date: January 3, 2013
    Applicant: I.R.I.S.
    Inventors: Michel Dauw, Patrick Verleysen, Xavier Gallez, Pierre De Muelenaere
  • Patent number: 8331706
    Abstract: 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: Grant
    Filed: November 17, 2011
    Date of Patent: December 11, 2012
    Assignee: I.R.I.S.
    Inventors: Michel Dauw, Pierre Demuelenaere
  • Publication number: 20120307316
    Abstract: 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: Application
    Filed: August 16, 2012
    Publication date: December 6, 2012
    Applicant: I.R.I.S.
    Inventors: Pierre De Muelenaere, Michel Dauw, Oliver Dupont, Patrick Verleysen
  • Publication number: 20120299881
    Abstract: 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: Application
    Filed: May 2, 2012
    Publication date: November 29, 2012
    Applicant: I.R.I.S.
    Inventors: Pierre DE MUELENAERE, Olivier DUPONT, Patrick VERLEYSEN, Michel DAUW
  • Publication number: 20120093412
    Abstract: 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: Application
    Filed: November 17, 2011
    Publication date: April 19, 2012
    Applicant: I.R.I.S.
    Inventors: Michel Dauw, Pierre Demuelenaere
  • Publication number: 20120063686
    Abstract: 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: Application
    Filed: November 17, 2011
    Publication date: March 15, 2012
    Applicant: I.R.I.S
    Inventors: Michel DAUW, Pierre DEMUELENAERE
  • Patent number: 8068684
    Abstract: 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: Grant
    Filed: May 4, 2007
    Date of Patent: November 29, 2011
    Assignee: I.R.I.S.
    Inventors: Michel Dauw, Pierre Demuelenaere