Patents by Inventor Johan Doré Hansen
Johan Doré Hansen 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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Patent number: 12131464Abstract: A method of analyzing a plurality of histology slides is provided, wherein possible artefacts are detected at an early stage. This is achieved by including a preliminary imaging and image analysis step in the process flow; the step being executed preferably before any diagnostic assessment e.g. image analysis or manual reading is performed by a pathologist or a lab technician. Accordingly, the histology slides reaching the expert for image analysis are of a higher quality, since the slides are ideally free of artefacts. The method thus saves valuable time for the pathologist, since only artefact-free slides will be subject to a detailed analysis. Furthermore, the method minimizes the risk of misinterpretations leading to potentially false diagnoses. A deep learning model, is also disclosed, which is capable of automatically determining whether histopathological images are suitable for diagnostic and/or research assessment. A training of the deep learning model is also disclosed.Type: GrantFiled: June 26, 2020Date of Patent: October 29, 2024Assignee: Visiopharm A/SInventors: Michael Grunkin, Johan Doré Hansen, Jeppe Thagaard
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Publication number: 20230122073Abstract: A medical image analysis system includes an image receiving/storing unit to receive/store digital images from a slide scanner; an image analysis unit to perform automatic analysis related to tumor cell detection, biomarker quantification and/or pattern recognition, and return analyzed images and/or analysis results; an image evaluation unit with an operation platform and user interface for review of images/analyzed images; an assembly/unification unit having a first interface to the analysis unit, the assembly/unification unit transfering the images to the analysis unit and receiving analyzed images and/or analysis results; a second interface to the evaluation unit, the assembly/unification unit transfering the images/analyzed images and receiving evaluations; a picture archiving/communication system or vendor neutral archive interface, the assembly/unification unit assembling and exporting the images/analyzed images/evaluations to the archiving/communication system or neutral archive.Type: ApplicationFiled: March 5, 2021Publication date: April 20, 2023Inventors: Johan Doré Hansen, Michael Grunkin
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Publication number: 20220260825Abstract: A method of analyzing a plurality of histology slides is provided, wherein possible artefacts are detected at an early stage. This is achieved by including a preliminary imaging and image analysis step in the process flow; the step being executed preferably before any diagnostic assessment e.g. image analysis or manual reading is performed by a pathologist or a lab technician. Accordingly, the histology slides reaching the expert for image analysis are of a higher quality, since the slides are ideally free of artefacts. The method thus saves valuable time for the pathologist, since only artefact-free slides will be subject to a detailed analysis. Furthermore, the method minimizes the risk of misinterpretations leading to potentially false diagnoses. A deep learning model, is also disclosed, which is capable of automatically determining whether histopathological images are suitable for diagnostic and/or research assessment. A training of the deep learning model is also disclosed.Type: ApplicationFiled: June 26, 2020Publication date: August 18, 2022Inventors: Michael Grunkin, Johan Doré Hansen, Jeppe Thagaard
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Patent number: 11276165Abstract: A method and a system for training a deep learning model to obtain histopathological information from images.Type: GrantFiled: June 12, 2018Date of Patent: March 15, 2022Assignee: Visiopharm A/SInventors: Jeppe Thagaard, Johan Dore Hansen, Thomas Ebstrup, Michael Friis Lippert, Michael Grunkin
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Publication number: 20210150701Abstract: A method and a system for training a deep learning model to obtain histopathological information from images.Type: ApplicationFiled: June 12, 2018Publication date: May 20, 2021Inventors: Jeppe Thagaard, Johan Dore Hansen, Thomas Ebstrup, Michael Friis Lippert, Michael Grunkin
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Patent number: 10209165Abstract: The quality of staining histological specimens has an impact on the histological assessment of the specimen. One of the causes for variability in the accuracy is the variations in the staining of the specimens to be tested in the working laboratories. The present invention provides a method for assessing the staining quality in a working laboratory and providing a quantitative quality measure for the staining quality. Thereby, it is possible for each working laboratory to evaluate their staining quality and to get feedback of how to improve the quality. The invention further relates to a system and a software program for carrying out the method.Type: GrantFiled: March 9, 2015Date of Patent: February 19, 2019Assignee: Visiopharm A/SInventors: Michael Grunkin, Johan Doré Hansen
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Publication number: 20170212018Abstract: The quality of staining histological specimens has an impact on the histological assessment of the specimen. One of the causes for variability in the accuracy is the variations in the staining of the specimens to be tested in the working laboratories. The present invention provides a method for assessing the staining quality in a working laboratory and providing a quantitative quality measure for the staining quality. Thereby, it is possible for each working laboratory to evaluate their staining quality and to get feedback of how to improve the quality. The invention further relates to a system and a software program for carrying out the method.Type: ApplicationFiled: March 9, 2015Publication date: July 27, 2017Inventors: Michael Grunkin, Johan Doré Hansen
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Patent number: 9697582Abstract: Disclosed is a method and a system for obtaining and analyzing image pairs, obtained as sections of specimen. The invention facilitates registration of two corresponding images, one from each section of the specimen. The invention includes performing a registration process of the two images thereby obtaining a mathematical transformation rule and afterwards using said transformation rule for each image field identified in one image allowing that the corresponding image field in the other image may be identified as well. After the corresponding image pairs have been obtained using the method of the present invention, the sections can be assessed, such as by identifying the counting events for at least one type of object on the image fields within at least one corresponding image pair, optionally using automatic means.Type: GrantFiled: March 24, 2014Date of Patent: July 4, 2017Assignee: Visiopharm A/SInventors: Michael Grunkin, Steen T. Rasmussen, Kim A. Bjerrum, Johan Dore Hansen
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Publication number: 20140348410Abstract: Disclosed is a method and a system for obtaining and analyzing image pairs, obtained as sections of specimen. The invention facilitates registration of two corresponding images, one from each section of the specimen. The invention includes performing a registration process of the two images thereby obtaining a mathematical transformation rule and afterwards using said transformation rule for each image field identified in one image allowing that the corresponding image field in the other image may be identified as well. After the corresponding image pairs have been obtained using the method of the present invention, the sections can be assessed, such as by identifying the counting events for at least one type of object on the image fields within at least one corresponding image pair, optionally using automatic means.Type: ApplicationFiled: March 24, 2014Publication date: November 27, 2014Applicant: VISIOPHARM A/SInventors: Michael Grunkin, Steen T. Rasmussen, Kim A. Bjerrum, Johan Dore Hansen
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Patent number: 8682050Abstract: The present invention relates to a method and a system for obtaining and analysing image pairs, obtained as sections of specimen. The invention facilitates registration of two corresponding images, one from each section of the specimen. The invention includes performing a registration process of the two images thereby obtaining a mathematical transformation rule and afterwards using said transformation rule for each image field identified in one image allowing that the corresponding image field in the other image may be identified as well. After the corresponding image pairs have been obtained using the method of the present invention, the sections can be assessed, such as by identifying the counting events for at least one type of object on the image fields within at least one corresponding image pair, optionally using automatic means.Type: GrantFiled: June 21, 2012Date of Patent: March 25, 2014Assignee: Visiopharm A/SInventors: Michael Grunkin, Steen T. Rasmussen, Kim A. Bjerrum, Johan Dore Hansen
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Publication number: 20130016892Abstract: The present invention relates to a method and a system for obtaining and analysing image pairs, obtained as sections of specimen. The invention facilitates registration of two corresponding images, one from each section of the specimen. The invention includes performing a registration process of the two images thereby obtaining a mathematical transformation rule and afterwards using said transformation rule for each image field identified in one image allowing that the corresponding image field in the other image may be identified as well. After the corresponding image pairs have been obtained using the method of the present invention, the sections can be assessed, such as by identifying the counting events for at least one type of object on the image fields within at least one corresponding image pair, optionally using automatic means.Type: ApplicationFiled: June 21, 2012Publication date: January 17, 2013Applicant: Visiopharm A/SInventors: Michael Grunkin, Steen T. Rasmussen, Kim A. Bjerrum, Johan Dore Hansen
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Patent number: 8229194Abstract: The present invention relates to a method and a system for obtaining and analysing image pairs, obtained as sections of specimen. The invention facilitates registration of two corresponding images, one from each section of the specimen. The invention includes performing a registration process of the two images thereby obtaining a mathematical transformation rule and afterwards using said transformation rule for each image field identified in one image allowing that the corresponding image field in the other image may be identified as well. After the corresponding image pairs have been obtained using the method of the present invention, the sections can be assessed, such as by identifying the counting events for at least one type of object on the image fields within at least one corresponding image pair, optionally using automatic means.Type: GrantFiled: November 16, 2007Date of Patent: July 24, 2012Assignee: Visiopharm A/SInventors: Michael Grunkin, Steen T. Rasmussen, Kim A. Bjerrum, Johan Dore Hansen
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Patent number: 7583827Abstract: The present invention relates to a method for assessing the presence or absence of lesion(s) in an image and a system therefor, wherein said image may be any image potentially comprising lesions, in particular an image from medical image diagnostics, and more particularly an ocular fundus image. The lesions are identified from starting points being candidate lesion areas and validated with respect to their visibility as compared to the local surroundings.Type: GrantFiled: October 3, 2002Date of Patent: September 1, 2009Assignee: Retinalyze Danmark A/SInventors: Johan Doré Hansen, Michael Grunkin, Niels Vaever Hartvig, Jannik Godt, Per Rønsholt Andresen, Ebbe Sørensen, Soffia Björk Smith
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Publication number: 20040258285Abstract: The present invention relates to a method for assessing the presence or absence of lesion(s) in an image and a system therefor, wherein said image may be any image potentially comprising lesions, in particular an image from medical image diagnostics, and more particularly an ocular fundus image. The lesions are identified from starting points being candidate lesion areas and validated with respect to their visibility as compared to the local surroundings.Type: ApplicationFiled: August 11, 2004Publication date: December 23, 2004Inventors: Johan Dore Hansen, Michael Grunkin, Niels Vaever Hartvig, Jannik Godt, Per Ronsholt Andresen, Ebbe Sorensen, Soffia Bjork Smith