Patents by Inventor Simon Duchesne
Simon Duchesne 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: 20220214727Abstract: An electric water heater with a computing device used to heat water from a residential or industrial water tank while executing useful computational tasks for a network. It includes a water tank, a heat exchanger, a computing device, a connectivity system to connect the computing device to a network, the network supplying computing tasks to the computing device, such that running the computing tasks results in a heat production, and a temperature control system to control the heat production from the computing device responsive to the water and heat exchanging fluid temperatures. The computational tasks are defined by one or more network user.Type: ApplicationFiled: May 6, 2020Publication date: July 7, 2022Inventors: Simon DUCHESNE, Dominique DUCHESNE
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Patent number: 11151722Abstract: A computer-implemented method, an apparatus, and a system for estimating synthetic values of quantitative metrics are provided. They involve calculating new, more accurate boundaries using a classifier based on local intensity and spatial estimators, for the segmentation mask provided by a non-local means patch-based segmentation in a test image, and estimating for the pixels of interest at least one synthetic value of a quantitative metric using a given value of the quantitative metric assigned to the reference images and the boundaries. The method, apparatus, and system provide the advantage of generating synthetic values directly comparable against known values for given subjects or against predetermined scales for diagnostic or prognostic purposes. In the specific case of Alzheimer's disease, the invention stretches the predictive range up to two full decades, which constitutes a significant advance in the field of medical diagnostics.Type: GrantFiled: July 22, 2016Date of Patent: October 19, 2021Inventors: Simon Duchesne, Pierre Gravel, Louis Collins
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Publication number: 20190287247Abstract: A computer-implemented method, an apparatus, and a system for estimating synthetic values of quantitative metrics are provided. They involve calculating new, more accurate boundaries using a classifier based on local intensity and spatial estimators, for the segmentation mask provided by a non-local means patch-based segmentation in a test image, and estimating for the pixels of interest at least one synthetic value of a quantitative metric using a given value of the quantitative metric assigned to the reference images and the boundaries. The method, apparatus, and system provide the advantage of generating synthetic values directly comparable against known values for given subjects or against predetermined scales for diagnostic or prognostic purposes. In the specific case of Alzheimer's disease, the invention stretches the predictive range up to two full decades, which constitutes a significant advance in the field of medical diagnostics.Type: ApplicationFiled: July 22, 2016Publication date: September 19, 2019Inventors: Simon DUCHESNE, Pierre GRAVEL, Louis COLLINS
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Patent number: 9286547Abstract: Applicants have discovered a multi-layer quality control/quality assurance system that provides higher quality data, without human intervention, by rejecting images that do not achieve a pre-determined quality threshold. In some embodiments of the present invention, there is provided a new method of processing an image from a data set through a pipeline wherein quality control/assurance allows to determine a quality of the image processing, the method comprising; receiving a test image; pre-processing the test image; registering the test image to a reference image; calculating a test image quality using a correlation of image intensity values between corresponding locations of the test image and the reference image; providing a plurality of training images and calculating training image quality distribution statistics for the training images with respect to the reference image; and relating the test image quality to the training image quality distribution.Type: GrantFiled: June 26, 2012Date of Patent: March 15, 2016Assignee: UNIVERSITÉ LAVALInventors: Simon Duchesne, Fernando Valdivia, Burt Crépault
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Patent number: 9135698Abstract: Intensity standardization of MRI data sets aims at correcting scanner-dependent intensity variations. An automatic technique, called STI, which shares the simplicity and robustness of histogram-matching techniques, but also incorporates tissue spatial intensity information, has been discovered. The method comprises registering a medical image to a standard image; applying one or more masks to the medical and standard images for isolating certain specific image components; determining the most common intensity data pair between the medical and standard images for each isolated image component; calculating a formula that joins the most common intensity data pair of each image component; and interpolating an intensity data adjustment using the formula and applying it to the medical image data to generate a standardized version of the medical image.Type: GrantFiled: July 10, 2011Date of Patent: September 15, 2015Assignee: UNIVERSITE LAVALInventors: Nicolas Robitaille, Simon Duchesne
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Publication number: 20140126790Abstract: Applicants have discovered a multi-layer quality control/quality assurance system that provides higher quality data, without human intervention, by rejecting images that do not achieve a pre-determined quality threshold. In some embodiments of the present invention, there is provided a new method of processing an image from a data set through a pipeline wherein quality control/assurance allows to determine a quality of the image processing, the method comprising; receiving a test image; pre-processing the test image; registering the test image to a reference image; calculating a test image quality using a correlation of image intensity values between corresponding locations of the test image and the reference image; providing a plurality of training images and calculating training image quality distribution statistics for the training images with respect to the reference image; and relating the test image quality to the training image quality distribution.Type: ApplicationFiled: June 26, 2012Publication date: May 8, 2014Applicant: UNIVERSITE LAVALInventors: Simon Duchesne, Fernando Valdivia, Burt Crépault
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Publication number: 20130101189Abstract: Intensity standardization of MRI data sets aims at correcting scanner-dependent intensity variations. An automatic technique, called STI, which shares the simplicity and robustness of histogram-matching techniques, but also incorporates tissue spatial intensity information, has been discovered. The method comprises registering a medical image to a standard image; applying one or more masks to the image medical and standard images for isolating certain specific image components; determining the most common intensity data pair between the medical and standard images for each isolated image component; calculating a formula that joins the most common intensity data pair of each image component; and interpolating an intensity data adjustment using the formula and applying it to the medical image data to generate a standardized version of the medical image.Type: ApplicationFiled: July 10, 2011Publication date: April 25, 2013Applicant: UNIVERSITE LAVALInventors: Nicolas Robitaille, Simon Duchesne
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Publication number: 20120053447Abstract: The invention described provides a method of quantitatively evaluating one or more of the likelihood. severity and progression of a disease from medical images comprising processing medical images of a test subject to derive one or more feature space values characteristic of a disease-dependent image attributes, comparing the feature space values to those of a previously established database from medical images of known health} and known diseased subjects, wherein the comparing is based on feature space values that best discriminate between health and diseased subjects, summing a weighted distance of discriminant feature space values of the test subject to those of at least one of the mean feature space value of the healthy subjects and the mean feature space value of the diseased subjects, and providing from the summing a single number which is indicative of at least one of disease likelihood. severity and progression.Type: ApplicationFiled: February 8, 2010Publication date: March 1, 2012Inventor: Simon Duchesne
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Patent number: 7899225Abstract: There is provided a method for predicting a clinical state of a subject based on image data obtained from a Volume Of Interest in the subject. The method comprise the establishment of a predictive model that relates image features and the future evolution of a clinical state.Type: GrantFiled: October 26, 2006Date of Patent: March 1, 2011Assignee: McGill UniversityInventors: D. Louis Collins, Simon Duchesne
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Patent number: 7751602Abstract: A method of classifying a test subject comprises collecting imaging data for a plurality of training subjects, control subjects and a test subject. An intensity volume of interest (VOI) and a morphological VOI are selected from said imaging data. Training intensity data and morphological data are calculated for the intensity and spatial VOI. A statistical model can then be created based on the training intensity data and training spatial data to provide a universe of subjects. Control intensity data and spatial data are also calculated for the intensity and spatial VOI. A classifier can then be built dividing the universe into at least two regions. The test subject data can then be applied to the classifier to provide a determination of whether the test subject falls within the first region or the second region. The condition can be a neurological disease state such as temporal lobe epilepsy or Alzheimer's dementia.Type: GrantFiled: November 18, 2004Date of Patent: July 6, 2010Assignee: McGill UniversityInventors: Louis Collins, Simon Duchesne
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Publication number: 20080101665Abstract: There is provided a method for predicting a clinical state of a subject based on image data obtained from a Volume Of Interest in the subject. The method comprise the establishment of a predictive model that relates image features and the future evolution of a clinical state.Type: ApplicationFiled: October 26, 2006Publication date: May 1, 2008Applicant: MCGILL UNIVERSITYInventors: D. Louis Collins, Simon Duchesne
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Publication number: 20060104494Abstract: A method of classifying a test subject comprises collecting imaging data for a plurality of training subjects, control subjects and a test subject. An intensity volume of interest (VOI) and a spatial VOI are selected from said imaging data. Training intensity data and spatial data are calculated for the intensity and spatial VOI. A statistical model can then be created based on the training intensity data and training spatial data to provide a universe of subjects. Control intensity data and spatial data are also calculated for the intensity and spatial VOI. A classifier can then be built dividing the universe into at least two regions. The test subject data can then be applied to the classifier to provide a determination of whether said test subject falls within the first region or the second region. The condition can be a neurological disease state such as temporal lobe epilepsy or Alzheimer's dementia.Type: ApplicationFiled: November 18, 2004Publication date: May 18, 2006Inventors: Louis Collins, Simon Duchesne