Patents by Inventor Stefan Boehme
Stefan Boehme 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: 10825155Abstract: A method is for providing a normalized image. The method includes receiving a non-normalized image including first pixels and non-normalized intensities, each of the first pixels being characterized by one of the non-normalized intensities. Furthermore, the method includes determining a subtraction histogram, the subtraction histogram being configured to map a first intensity to the difference between the relative frequency of the first intensity and the relative frequency of a second intensity, the first intensity being one of the non-normalized intensities and the second intensity being one of the non-normalized intensities. Furthermore, the method includes providing a normalized image including second pixels and normalized intensities based on the non-normalized image and based on the subtraction histogram, each of the second pixels being characterized by one of the normalized intensities.Type: GrantFiled: May 31, 2018Date of Patent: November 3, 2020Assignee: Siemens Healthcare GmbHInventor: Stefan Boehm
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Patent number: 10703015Abstract: A cutting bead (13) for a saw rope (15) comprises a geometrically defined cutting portion (2) and tapers from the geometrically defined cutting portion (2) contrary to a sawing direction. With such cutting beads (13), a saw rope (15) is formed. In a method for manufacturing a saw rope (15), a cutting element (1) with a geometrically defined cutting portion (2) and an abrasive element (6) with a geometrically undefined cutting portion (14) or a neutral element (8) are joined. With the cutting element (1) and the abrasive element (6) or the neutral element (8), a cutting bead (13) is formed. The cutting bead (13) is joined onto the support rope (16).Type: GrantFiled: December 11, 2017Date of Patent: July 7, 2020Assignee: UNIVERSITAET KASSELInventors: Stefan Schwarte, Christoph Heise, Stefan Boehm
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Publication number: 20180350051Abstract: A method is for providing a normalized image. The method includes receiving a non-normalized image including first pixels and non-normalized intensities, each of the first pixels being characterized by one of the non-normalized intensities. Furthermore, the method includes determining a subtraction histogram, the subtraction histogram being configured to map a first intensity to the difference between the relative frequency of the first intensity and the relative frequency of a second intensity, the first intensity being one of the non-normalized intensities and the second intensity being one of the non-normalized intensities. Furthermore, the method includes providing a normalized image including second pixels and normalized intensities based on the non-normalized image and based on the subtraction histogram, each of the second pixels being characterized by one of the normalized intensities.Type: ApplicationFiled: May 31, 2018Publication date: December 6, 2018Applicant: Siemens Healthcare GmbHInventor: Stefan BOEHM
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Publication number: 20180099433Abstract: A cutting bead (13) for a saw rope (15) comprises a geometrically defined cutting portion (2) and tapers from the geometrically defined cutting portion (2) contrary to a sawing direction. With such cutting beads (13), a saw rope (15) is formed. In a method for manufacturing a saw rope (15), a cutting element (1) with a geometrically defined cutting portion (2) and an abrasive element (6) with a geometrically undefined cutting portion (14) or a neutral element (8) are joined. With the cutting element (1) and the abrasive element (6) or the neutral element (8), a cutting bead (13) is formed. The cutting bead (13) is joined onto the support rope (16).Type: ApplicationFiled: December 11, 2017Publication date: April 12, 2018Inventors: Stefan Schwarte, Christoph Heise, Stefan Boehm
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Patent number: 8343410Abstract: A production method for producing molded articles from fiber composites, superparamagnetic particles are selected which become coupled to an external alternating magnetic field. These superparamagnetic particles are added to a resin portion of a strip-shaped starting material further comprising reinforcing fibers. The strip-shaped starting material is then continuously advanced, and, while being advanced, heated by coupling-in an external alternating magnetic field to which the superparamagnetic particles in the resin portion become coupled. Next, the heated starting material is continuously molded into a molded article; and the resin portion in the molded particle is cured.Type: GrantFiled: August 21, 2009Date of Patent: January 1, 2013Assignee: Evonik Degussa GmbHInventors: Lars Herbeck, Thorsten Mahrholz, Tobias Stroehlein, Juergen Mosch, Michael Frauenhofer, Stefan Boehm, Klaus Dilger, Harald Haeger, Christian Baron, Markus Pridoehl
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Patent number: 8244020Abstract: A method and system for intelligent digital subtraction is disclosed. The method and system for intelligent digital subtraction can be used in a roadmap application for a coronary intervention. A mask image is obtained with vessels highlighted by contrast media. A guide wire is inserted into the vessels, and a guide wire image is obtained. A direct subtraction image is generated from the guide wire image and the mask image. A reduced noise subtraction image is generated based on mutual image information between the subtraction image and the guide wire image and mutual image information between the subtraction image and the mask image.Type: GrantFiled: October 3, 2008Date of Patent: August 14, 2012Assignee: Siemens AktiengesellschaftInventors: Yunqiang Chen, Tong Fang, Sandra Martin, Stefan Boehm, Peter Durlak
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Patent number: 8199316Abstract: A description is given of a device (1) for tracking the movement of a tool of a handling unit (2), having at least one directional radiator (5) that can be aligned with the tool and be tracked, and a signal evaluation unit (4) for determining the movement. The directional radiators (5) have actuators for aligning the directional beam (6) at adjustable angles with reference to a fixed spatial plane, and angle sensors for determining the current directional beam angle with reference to the spatial plane, the angle sensors being connected to the signal evaluation unit (4). Directional beam sensors (7) for detecting the directional beam (6) are arranged with a fixed reference to the tool and movably therewith, the directional beam sensors (7) being connected to the signal evaluation unit (4).Type: GrantFiled: February 8, 2007Date of Patent: June 12, 2012Assignee: LKT GmbHInventors: Stefan Boehm, Mark Hellmanns, Klaus Dilger, Karl-Heinz Brakhage
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Patent number: 8086007Abstract: A method and system for image quality assessment is disclosed. The image quality assessment method is a no-reference method for objectively assessing the quality of medical images. This method is guided by the human vision model in order to accurately reflect human perception. A region of interest (ROI) of medical image is divided into non-overlapping blocks of equal size. Each of the blocks is categorized as a smooth block, a texture block, or an edge block. A perceptual sharpness measure, which is weighted by local contrast, is calculated for each of the edge blocks. A perceptual noise level measure, which is weighted by background luminance, is calculated for each of the smooth blocks. A sharpness quality index is determined based on the perceptual sharpness measures of all of the edge blocks, and a noise level quality index is determined based on the perceptual noise level measures of all of the smooth blocks.Type: GrantFiled: October 3, 2008Date of Patent: December 27, 2011Assignee: Siemens AktiengesellschaftInventors: Michelle Xiao-Hong Yan, Ti-chiun Chang, Markus Lendl, Stefan Boehm, Tong Fang, Peter Durlak
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Publication number: 20100298963Abstract: A description is given of a device (1) for tracking the movement of a tool of a handling unit (2), having at least one directional radiator (5) that can be aligned with the tool and be tracked, and a signal evaluation unit (4) for determining the movement. The directional radiators (5) have actuators for aligning the directional beam (6) at adjustable angles with reference to a fixed spatial plane, and angle sensors for determining the current directional beam angle with reference to the spatial plane, the angle sensors being connected to the signal evaluation unit (4). Directional beam sensors (7) for detecting the directional beam (6) are arranged with a fixed reference to the tool and movably therewith, the directional beam sensors (7) being connected to the signal evaluation unit (4).Type: ApplicationFiled: February 8, 2007Publication date: November 25, 2010Inventors: Stefan Boehm, Mark Hellmanns, Klaus Dilger, Karl-Heinz Brakhage
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Patent number: 7792342Abstract: A system and method for populating a database with a set of image sequences of an object is disclosed. The database is used to detect localization of a guidewire in the object. A set of images of anatomical structures is received in which each image is annotated to show a guidewire, catheter, wire tip and stent. For each given image a Probabilistic Boosting Tree (PBT) is used to detect short line segments of constant length in the image. Two segment curves are constructed from the short line segments. A discriminative joint shape and appearance model is used to classify each two segment curve. A shape of an n-segment curve is constructed by concatenating all the two segment curves. A guidewire curve model is identified that includes a start point, end point and the n-segment curve. The guidewire curve model is stored in the database.Type: GrantFiled: February 16, 2007Date of Patent: September 7, 2010Assignees: Siemens Medical Solutions USA, Inc., Siemens AktiengesellschaftInventors: Adrian Barbu, Vassilis Athitsos, Bogdan Georgescu, Peter Durlak, Stefan Boehm, Dorin Comaniciu
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Patent number: 7744718Abstract: A method for gluing microcomponents to a substrate (1) during the production of microsystem components includes the steps of applying a reactive or non-reactive hot melt type adhesive (5) to the microcomponent (18) and/or the substrate (1), heating the hot melt type adhesive (5), and placing the microcomponent (18) onto the substrate (1). The hot melt type adhesive (5) is on the contact surfaces between the microcomponent (18) and the substrate (1) during and after gluing.Type: GrantFiled: August 6, 2004Date of Patent: June 29, 2010Assignee: Technische Universitaet Braunschweig Carolo-WilhelminaInventors: Stefan Boehm, Klaus Dilger, Elisabeth Stammen, Frank Mund, Gero Pokar, Jan Wrege
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Publication number: 20090311506Abstract: In a production method for producing molded articles from fiber composites, superparamatic particles are selected which become coupled to an external alternating magnetic field. These superparamagnatic particles are added to a resin portion of a strip-shaped starting material further comprising reinforcing fibers. The strip-shaped starting material is then continuously advanced, and, while being advanced, heated by coupling-in an external alternating magnetic field to which the superparamagnatic particles in the resin portion become coupled. Next, the heated starting material is continuously molded into a molded article; and the resin portion in the molded particle is cured.Type: ApplicationFiled: August 21, 2009Publication date: December 17, 2009Applicant: EVONIK DEGUSSA GmbHInventors: Lars HERBECK, Thorsten MAHRHOLZ, Tobias STROEHLEIN, Juergen MOSCH, Michael FRAUENHOFER, Stefan BOEHM, Klaus DILGER, Harald HAEGER, Christian BARON, Markus PRIDOEHL
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Publication number: 20090116713Abstract: A method and system for image quality assessment is disclosed. The image quality assessment method is a no-reference method for objectively assessing the quality of medical images. This method is guided by the human vision model in order to accurately reflect human perception. A region of interest (ROI) of medical image is divided into non-overlapping blocks of equal size. Each of the blocks is categorized as a smooth block, a texture block, or an edge block. A perceptual sharpness measure, which is weighted by local contrast, is calculated for each of the edge blocks. A perceptual noise level measure, which is weighted by background luminance, is calculated for each of the smooth blocks. A sharpness quality index is determined based on the perceptual sharpness measures of all of the edge blocks, and a noise level quality index is determined based on the perceptual noise level measures of all of the smooth blocks.Type: ApplicationFiled: October 3, 2008Publication date: May 7, 2009Inventors: Michelle Xiao-Hong Yan, Ti-Chiun Chang, Markus Lendl, Stefan Boehm, Tong Fang, Peter Durlak
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Publication number: 20090103682Abstract: A method and system for intelligent digital subtraction is disclosed. The method and system for intelligent digital subtraction can be used in a roadmap application for a coronary intervention. A mask image is obtained with vessels highlighted by contrast media. A guide wire is inserted into the vessels, and a guide wire image is obtained. A direct subtraction image is generated from the guide wire image and the mask image. A reduced noise subtraction image is generated based on mutual image information between the subtraction image and the guide wire image and mutual image information between the subtraction image and the mask image.Type: ApplicationFiled: October 3, 2008Publication date: April 23, 2009Inventors: Yungiang Chen, Tong Fang, Sandra Martin, Stefan Boehm, Peter Durlak
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Publication number: 20080133303Abstract: A business object model, which reflects data that is used during a given business transaction, is utilized to generate interfaces. This business object model facilitates commercial transactions by providing consistent interfaces that are suitable for use across industries, across businesses, and across different departments within a business during a business transaction.Type: ApplicationFiled: December 15, 2006Publication date: June 5, 2008Inventors: Abhinava Singh, Andor Vizhanyo, Andreas Esau, Andreas Huber-Buschbeck, Andreas Seibel, Astrid Doppenschmidt, Bleickard Langendoerfer, Budi Santoso, Chandramohan Yengoti, Christian Hissler, Christian Werner, Christof Rausse, Cornel Leinenkugel, Devasena Rajamohan, Dietmar Henkes, Gabor Szigeti, Gerd Egen, Gerold Wellenhofer, Gergor Arlt, Hans-Peter Thienel, Heiko Theissen, Jens-Martin Wolle, Jerome Poulin, Kerstin Hambrecht, Klaus Zumbach, Madhavi Koujalagi, Mark Schuette, Moghaddam Masoumeh, Oliver Vonderheid, Ralf Wagenknecht, Rana Chakrabarti, Ravishankar Bijjala, Shiry Achiman, Siarhei Ulasenka, Stefan Boehm, Susanne Doenig, Svetlana Rebholz, Tamas Varga, Thiemo Lindemann, Thomas Schneider, Udo Herbst, Uwe Oehler, Rolf Waltemathe, Carsten Pluder, Harsh Panwar, Eberhard Schick, Corinne Reisert, Juergen Hollberg, Peter Wadewitz, Shankar V
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Publication number: 20070270692Abstract: A system and method for populating a database with a set of image sequences of an object is disclosed. The database is used to detect localization of a guidewire in the object. A set of images of anatomical structures is received in which each image is annotated to show a guidewire, catheter, wire tip and stent. For each given image a Probabilistic Boosting Tree (PBT) is used to detect short line segments of constant length in the image. Two segment curves are constructed from the short line segments. A discriminative joint shape and appearance model is used to classify each two segment curve. A shape of an n-segment curve is constructed by concatenating all the two segment curves. A guidewire curve model is identified that includes a start point, end point and the n-segment curve. The guidewire curve model is stored in the database.Type: ApplicationFiled: February 16, 2007Publication date: November 22, 2007Applicant: SIEMENS CORPORATE RESEARCH, INC.Inventors: Adrian Barbu, Vassilis Athitsos, Bogdan Georgescu, Stefan Boehm, Peter Durlak, Dorin Comaniciu
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Publication number: 20070163671Abstract: In a method and a device for non-contacting monitoring of the fill state of liquids in an unpressurized liquid container, the fill state and/or the fill state change is determined by radiating light onto the boundary region of the liquid at which a fill state-dependent curvature arises due to adhesion forces of the liquid at the reservoir wall and surface tension, and the intensity of the reflected light or the reflection angle is measured at a predetermined location.Type: ApplicationFiled: January 12, 2007Publication date: July 19, 2007Inventors: Stefan Boehm, Ludwig Danzer, Sven Rathmann, Jan Wrege
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Publication number: 20060243380Abstract: A method for gluing microcomponents to a substrate (1) during the production of microsystem components includes the steps of applying a reactive or non-reactive hot melt type adhesive (5) to the microcomponent (18) and/or the substrate (1), heating the hot melt type adhesive (5), and placing the microcomponent (18) onto the substrate (1). The hot melt type adhesive (5) is on the contact surfaces between the microcomponent (18) and the substrate (1) during and after gluing.Type: ApplicationFiled: August 6, 2004Publication date: November 2, 2006Inventors: Stefan Boehm, Klaus Dilger, Elisabeth Stammen, Frank Mund, Gero Pokar, Jan Wrege
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Publication number: 20060069124Abstract: Methods of modulating eosinophil migration, chemotaxis or generation, in vitro, ex vivo, and in vivo are provided. Methods include contacting eosinophils with an amount of 5-HT2A receptor agonist or antagonist sufficient to modulate eosinophil migration, chemotaxis or generation.Type: ApplicationFiled: September 7, 2005Publication date: March 30, 2006Inventors: P. Rao, Stefan Boehme, Savita Rao, Goukanapalli Reddy
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Patent number: 6763084Abstract: In a method for operating an imaging medical examination device (1), an event of the undisturbed operation of the medical examination device (1) automatically triggers a defect determination (63) for determining a defective pixel possibly present in the image. The event is derived for example from a switch-on process, a calibration process and/or an examination process. Preferably, after the defect determination (63), a correction process (67) is automatically triggered if a defective pixel was detected. A medical examination device (1) has a detection device (31) for automatically determining a defective pixel possibly present in the image, in which case the detection device (31) can be activated by an event of the undisturbed operation of the medical examination device. A correction device (41) for automatically eliminating a defective pixel that has possibly been detected is preferably present.Type: GrantFiled: November 23, 2001Date of Patent: July 13, 2004Assignee: Siemens AktiengesellschaftInventors: Stefan Boehm, Martin Spahn
