Patents by Inventor Frederic Collet

Frederic Collet 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).

  • Patent number: 11823497
    Abstract: An image processing system and an image processing method for localising recognised characters in an image. An estimation unit is configured to estimate a first location of a recognised character that has been obtained by performing character recognition of the image. A determination unit is configured to determine second locations of a plurality of connected components in the image. A comparison unit is configured to compare the first location and the second locations, to identify a connected component associated with the recognised character. An association unit is configured to associate the recognised character, the identified connected component, and the second location of the identified connected component.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: November 21, 2023
    Assignee: I.R.I.S
    Inventors: Frédéric Collet, Jordi Hautot, Michel Dauw
  • Patent number: 11551461
    Abstract: A text classifying apparatus (100), an optical character recognition unit (1), a text classifying method (S220) and a program are provided for performing the classification of text. A segmentation unit (110) segments an image into a plurality of lines of text (401-412; 451-457; 501-504; 701-705) (S221). A selection unit (120) selects a line of text from the plurality of lines of text (S222-S223). An identification unit (130) identifies a sequence of classes corresponding to the selected line of text (S224). A recording unit (140) records, for the selected line of text, a global class corresponding to a class of the sequence of classes (S225-S226). A classification unit (150) classifies the image according to the global class, based on a confidence level of the global class (S227-S228).
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: January 10, 2023
    Assignee: I.R.I.S.
    Inventors: Frédéric Collet, Vandana Roy
  • Publication number: 20220301329
    Abstract: An image processing system and an image processing method for localising recognised characters in an image. An estimation unit is configured to estimate a first location of a recognised character that has been obtained by performing character recognition of the image. A determination unit is configured to determine second locations of a plurality of connected components in the image. A comparison unit is configured to compare the first location and the second locations, to identify a connected component associated with the recognised character. An association unit is configured to associate the recognised character, the identified connected component, and the second location of the identified connected component.
    Type: Application
    Filed: June 10, 2022
    Publication date: September 22, 2022
    Inventors: Frédéric COLLET, Jordi HAUTOT, Michel DAUW
  • Patent number: 11386682
    Abstract: An image processing system and an image processing method for localising recognised characters in an image. An estimation unit is configured to estimate a first location of a recognised character that has been obtained by performing character recognition of the image. A determination unit is configured to determine second locations of a plurality of connected components in the image. A comparison unit is configured to compare the first location and the second locations, to identify a connected component associated with the recognised character. An association unit is configured to associate the recognised character, the identified connected component, and the second location of the identified connected component.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: July 12, 2022
    Assignee: I.R.I.S
    Inventors: Frédéric Collet, Jordi Hautot, Michel Dauw
  • Patent number: 11270143
    Abstract: A computer implemented method for optical character recognition (OCR) of a character string in a text image. The method efficiently combines two different OCR engines with the computation that needs to be done by the second OCR engine depending on the results found by the first OCR engine. This method provides, in particular, a high speed and accurate results when the first OCR engine is fast and the second OCR engine is accurate. The combination is possible because the second OCR engine identifies each segment to be processed by the second OCR engine without needing to process all segments.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: March 8, 2022
    Inventors: Frederic Collet, Jordi Hautot, Michel Dauw
  • Patent number: 11188779
    Abstract: Processing a dithered image comprising a grid of pixels including defining an array of pixels corresponding to a sub-region of the image; performing edge detection along the rows and the columns of the array; counting the number of edges detected along the rows of the array to determine the number of horizontal edges in the array; counting the number of edges detected along the columns of the array to determine the number of vertical edges in the array; identifying whether the sub-region is dithered based on the number of horizontal and vertical edges in the array; and selectively processing the corresponding sub-region of the image based on whether or not the sub-region is identified to be dithered. The identification step may also be based on the lengths of segments of similar pixels in the lines of the array.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 30, 2021
    Assignee: I.R.I.S.
    Inventors: Brecht Milis, Michel Dauw, Frédéric Collet
  • Patent number: 11170265
    Abstract: An image processing method for recognising characters included in an image. A first character recognition unit performs recognition of a first group of characters corresponding to a first region of the image. A measuring unit calculates a confidence measure of the first group of characters. A determination unit determines whether further recognition is to be performed based on the confidence measure. A selection unit selects a second region of the image that includes the first region, if it is determined that further recognition is to be performed. A second character recognition unit performs further recognition of a second group of characters corresponding to the second region of the image.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: November 9, 2021
    Assignee: I.R.I.S.
    Inventors: Frédéric Collet, Jordi Hautot, Michel Dauw
  • Publication number: 20210319247
    Abstract: A text classifying apparatus (100), an optical character recognition unit (1), a text classifying method (S220) and a program are provided for performing the classification of text. A segmentation unit (110) segments an image into a plurality of lines of text (401-412; 451-457; 501-504; 701-705) (S221). A selection unit (120) selects a line of text from the plurality of lines of text (S222-S223). An identification unit (130) identifies a sequence of classes corresponding to the selected line of text (S224). A recording unit (140) records, for the selected line of text, a global class corresponding to a class of the sequence of classes (S225-S226). A classification unit (150) classifies the image according to the global class, based on a confidence level of the global class (S227-S228).
    Type: Application
    Filed: April 10, 2020
    Publication date: October 14, 2021
    Inventors: Frédéric COLLET, Vandana ROY
  • Publication number: 20190303702
    Abstract: An image processing system and an image processing method for localising recognised characters in an image. An estimation unit is configured to estimate a first location of a recognised character that has been obtained by performing character recognition of the image. A determination unit is configured to determine second locations of a plurality of connected components in the image. A comparison unit is configured to compare the first location and the second locations, to identify a connected component associated with the recognised character. An association unit is configured to associate the recognised character, the identified connected component, and the second location of the identified connected component.
    Type: Application
    Filed: March 14, 2019
    Publication date: October 3, 2019
    Inventors: Frédéric COLLET, Jordi HAUTOT, Michel DAUW
  • Publication number: 20190279018
    Abstract: Processing a dithered image comprising a grid of pixels including defining an array of pixels corresponding to a sub-region of the image; performing edge detection along the rows and the columns of the array; counting the number of edges detected along the rows of the array to determine the number of horizontal edges in the array; counting the number of edges detected along the columns of the array to determine the number of vertical edges in the array; identifying whether the sub-region is dithered based on the number of horizontal and vertical edges in the array; and selectively processing the corresponding sub-region of the image based on whether or not the sub-region is identified to be dithered. The identification step may also be based on the lengths of segments of similar pixels in the lines of the array.
    Type: Application
    Filed: March 4, 2019
    Publication date: September 12, 2019
    Inventors: Brecht Milis, Michel Dauw, Frédéric Collet
  • Publication number: 20190266447
    Abstract: An image processing method for recognising characters included in an image. A first character recognition unit performs recognition of a first group of characters corresponding to a first region of the image. A measuring unit calculates a confidence measure of the first group of characters. A determination unit determines whether further recognition is to be performed based on the confidence measure. A selection unit selects a second region of the image that includes the first region, if it is determined that further recognition is to be performed. A second character recognition unit performs further recognition of a second group of characters corresponding to the second region of the image.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 29, 2019
    Inventors: Frédéric COLLET, Jordi HAUTOT, Michel DAUW
  • Publication number: 20180260652
    Abstract: A computer implemented method for optical character recognition (OCR) of a character string in a text image. The method efficiently combines two different OCR engines with the computation that needs to be done by the second OCR engine depending on the results found by the first OCR engine. This method provides, in particular, a high speed and accurate results when the first OCR engine is fast and the second OCR engine is accurate. The combination is possible because the second OCR engine identifies each segment to be processed by the second OCR engine without needing to process all segments.
    Type: Application
    Filed: February 27, 2018
    Publication date: September 13, 2018
    Applicant: I.R.I.S.
    Inventors: Frederic Collet, Jordi Hautot, Michel Dauw
  • Patent number: 9856598
    Abstract: An ironing appliance including a steam distribution circuit having at least one filter designed to retain lime scale particles transported by the steam flow, wherein it includes a lime scale disposal orifice that communicates with a portion of the steam distribution circuit located upstream of the filter and that said filter is fixedly mounted in the appliance or is removable via an orifice separate from the lime scale disposal orifice.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: January 2, 2018
    Assignee: SEB S.A.
    Inventor: Frederic Collet
  • Patent number: 9836646
    Abstract: The invention relates to a method for combining a first Optical Character Recognition (OCR) and a second OCR. The first OCR is run first on an image of string of characters. Its output (first identified characters, positions of the characters and likelihood parameters of the characters) is used to generate a first graph. Segmentation points related to the positions of the first identified characters are used as input by the second OCR performing a combined segmentation and classification on the image of string of characters. The output (second identified characters, positions of the characters and likelihood parameters of the characters) of the second OCR is used to update the first graph to generate a second graph that combines the output of the first OCR with the output of the second OCR. Decision models are then used to modify the weights of paths in the second graph to generate a third graph.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: December 5, 2017
    Assignee: I.R.I.S.
    Inventors: Frederic Collet, Jordi Hautot, Michel Dauw, Pierre De Muelenaere
  • Patent number: 9798943
    Abstract: The optical character recognition method applies a first OCR engine to provide an identification of characters of at least a first type of characters and zones of at least a second type of characters in the character string image. A second OCR engine is applied on the zones of the at least second type of characters to provide an identification of characters of a second type of characters. The characters identified by the first OCR engine and by the second OCR engine are in a further step combined to obtain the identification of the characters of the character string image.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: October 24, 2017
    Assignee: I.R.I.S.
    Inventors: Frederic Collet, Jordi Hautot, Michel Dauw, Pierre De Muelenaere, Olivier Dupont, Gunter Hensges
  • Publication number: 20170109573
    Abstract: The invention relates to a method for combining a first Optical Character Recognition (OCR) and a second OCR. The first OCR is run first on an image of string of characters. Its output (first identified characters, positions of the characters and likelihood parameters of the characters) is used to generate a first graph. Segmentation points related to the positions of the first identified characters are used as input by the second OCR performing a combined segmentation and classification on the image of string of characters. The output (second identified characters, positions of the characters and likelihood parameters of the characters) of the second OCR is used to update the first graph to generate a second graph that combines the output of the first OCR with the output of the second OCR. Decision models are then used to modify the weights of paths in the second graph to generate a third graph.
    Type: Application
    Filed: October 15, 2015
    Publication date: April 20, 2017
    Inventors: Frederic Collet, Jordi Hautot, Michel Dauw
  • Patent number: 9457305
    Abstract: Iron containing a steam generator connected to steam outlet holes by a steam conduit with at least one filter for retaining mineral particles carried by the steam, wherein the steam conduit has a mineral deposit collection cavity with a mineral deposit removal orifice closed by a detachable plug that is accessible from outside the iron, and wherein the filter can be detached from the iron through the mineral deposit removal orifice.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: October 4, 2016
    Assignee: SEB S.A.
    Inventor: Frederic Collet
  • Publication number: 20160258109
    Abstract: An ironing appliance including a steam distribution circuit having at least one filter designed to retain lime scale particles transported by the steam flow, wherein it includes a lime scale disposal orifice that communicates with a portion of the steam distribution circuit located upstream of the filter and that said filter is fixedly mounted in the appliance or is removable via an orifice separate from the lime scale disposal orifice.
    Type: Application
    Filed: March 2, 2016
    Publication date: September 8, 2016
    Inventor: Frederic Collet
  • Patent number: 9311558
    Abstract: A method for identifying a pattern in an image. In a first step the image is normalized to a binary matrix. A binary vector is subsequently generated from the binary matrix. The binary vector is filtered with a sparse matrix to a feature vector using a matrix vector multiplication wherein the matrix vector multiplication determines the values of the feature vector by applying program steps which are the result of transforming the sparse matrix in program steps including conditions on the values of the binary vector. Lastly, from the feature vector, a density of probability for a predetermined list of models is generated to identify the pattern in the image.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: April 12, 2016
    Assignee: I.R.I.S.
    Inventors: Frederic Collet, Jordi Hautot, Michel Dauw, Pierre De Muelenaere, Olivier Dupont, Gunter Hensges
  • Publication number: 20150356365
    Abstract: The optical character recognition method applies a first OCR engine to provide an identification of characters of at least a first type of characters and zones of at least a second type of characters in the character string image. A second OCR engine is applied on the zones of the at least second type of characters to provide an identification of characters of a second type of characters. The characters identified by the first OCR engine and by the second OCR engine are in a further step combined to obtain the identification of the characters of the character string image.
    Type: Application
    Filed: June 9, 2014
    Publication date: December 10, 2015
    Applicant: I.R.I.S.
    Inventors: Frederic Collet, Jordi Hautot, Michel Dauw, Pierre De Muelenaere, Olivier Dupont, Gunter Hensges