Patents by Inventor Dirk Schaefer
Dirk Schaefer 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: 20250131558Abstract: System (S-SYS) and related method for determining a material density map for a target material. The system (S-SYS) may receive spectral data representable in a two-dimensional data space. The spectral data may include measurements acquired by a spectral imaging apparatus of an object in a three-dimensional image domain of the spectral imaging apparatus. The system determines clusters in the data space, one indicative of the target material, the target material cluster, and clusters indicative auxiliary materials, the auxiliary material clusters. The system may determine a mutual geometrical constellation of the clusters. The system determines the material density map based on the geometrical constellation so determined.Type: ApplicationFiled: December 6, 2022Publication date: April 24, 2025Inventors: MATTHIAS SIMON, BERND MENSER, WALTER RUETTEN, KLAUS JÜRGEN ENGEL, DIRK SCHAEFER, AXEL THRAN
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Publication number: 20250131219Abstract: The present invention relates to the technical field of the marking of articles by means of optically readable codes and of reading out the codes. The invention relates to a method, a system and a computer program product for detecting and interpreting optically readable codes that are introduced into the surfaces of articles.Type: ApplicationFiled: December 15, 2022Publication date: April 24, 2025Inventors: Dirk SCHAEFER, Benjamin HOETTER, Gregor FISCHER, Klaus RUELBERG
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Publication number: 20250061620Abstract: A system (100) for reconstructing digital subtraction angiography, DSA, images (110) representing a region of interest (120) in an object (130), is provided. The system includes one or more processors (140) configured to: receive (S110) cone beam projection data (150) acquired during a portion of a revolution of a source-detector arrangement (160s, 160d) of a cone beam X-ray imaging system (170) around the object (130); reconstruct (S120) the cone beam projection data (150) acquired from one or more orientations within a first angular range (Dq1), into a 3D mask image (170) representing the region of interest (120); and reconstruct (S130) the cone beam projection data (150) acquired from one or more orientations within a second angular range (Dq2), into a temporal sequence of 3D DSA images (110) representing the region of interest (120), based on the reconstructed 3D mask image (170).Type: ApplicationFiled: December 12, 2022Publication date: February 20, 2025Inventors: LEILI SALEHI, GRZEGORZ ANDRZEJ TOPOREK, AYUSHI SINHA, RAMON QUIDO ERKAMP, ASHISH SATTYAVRAT PANSE, DIRK SCHÄFER, DANIËL SIMON ANNA RUIJTERS
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Publication number: 20250054138Abstract: All X-ray computerized tomography systems that are available or proposed base their reconstructions on measurements that integrate over energy. X-ray tubes produce a broad spectrum of photon energies and a great deal of information can be derived by measuring changes in the transmitted spectrum. We show that for any material, complete energy spectral information may be summarized by a few constants which are independent of energy. A technique is presented which uses simple, low-resolution, energy spectrum measurements and conventional computerized tomography techniques to calculate these constants at every point within a cross-section of an object. For comparable accuracy, patient dose is shown to be approximately the same as that produced by conventional systems. Possible uses of energy spectral information for diagnosis are presented.Type: ApplicationFiled: December 16, 2022Publication date: February 13, 2025Inventors: DIRK SCHAEFER, CHRISTIAN HAASE, MICHAEL GRASS, DANIEL SIMON ANNA RUIJTERS, WOUTER WIGGERS, IVO CANJELS, MARIJKE ANTONIA ADRIANA VAN VLIMMEREN, ROBERT VAN KEULEN, ANGELIQUE BALGUID
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Publication number: 20250025239Abstract: A mechanism for generating feedback information for aiding in improved performance of tracking the location of an interventional device. where such tracking is performed using one or more electric. electromagnetic and/or magnetic fields generated by one or more field generators on the surface of the subject. A spatial relationship between field generators on a surface of the subject and one or more anatomical structures of the subject is determined from non-invasive imaging data. This spatial relationship is used to generate the feedback information for calibrating a mapping or location tracking system and/or for repositioning the field generators.Type: ApplicationFiled: November 25, 2022Publication date: January 23, 2025Inventors: Bernardus Hendrikus Wilhelmus HENDRIKS, Rogier Rudolf WILDEBOER, Josephus Arnoldus Johannes Maria KAHLMAN, Jarich Willem SPLIETHOFF, Gerardus Henricus Maria GIJSBERS, Dirk SCHÄFER, Alexander KOLEN, Walter RUETTEN
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Patent number: 12198335Abstract: A method and apparatus for analyzing diagnostic image data are provided in which a plurality of acquisition images of a vessel of interest having been acquired with a pre-defined acquisition method is received at a trained classifying device and classified, by the classifying device, to extract at least one quantitative feature of the vessel of interest from at least one acquisition image of the plurality of acquisition images. The at least one quantitative feature is then output associated with the at least one acquisition image while the acquisition of the diagnostic image data is still in progress and one or more adjustable image acquisition settings are adjusted based on the at least one quantitative feature to optimize the acquisition of the diagnostic image data.Type: GrantFiled: June 29, 2020Date of Patent: January 14, 2025Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Christian Haase, Dirk Schaefer, Michael Grass
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Patent number: 12123236Abstract: The invention relates to a hinge lock consisting of a first hinge part for fastening to the outside of a door and a second hinge part for fastening on the outside of a door frame, wherein the first hinge part has an actuating device, by means of which the first and the second hinge part can be unlocked and locked with one another. The actuating device interacts with a shaft, which is suitable for passing through the door. An inner handle is arranged at the end of the shaft facing away from the actuating device, by means of which the first and the second hinge part can be unlocked and locked with one another. The shaft is surrounded by at least one pipe part.Type: GrantFiled: February 26, 2020Date of Patent: October 22, 2024Assignee: Industrilås i Nässjö ABInventors: Maxim Kaganov, Dirk Schäfer
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Patent number: 12086910Abstract: An image processing system (IPS), comprising an input interface (IN) for receiving a projection image from a plurality of projection images of a movable object (PAT) acquired along different directions by an imaging apparatus (XA), the projection images defined in a projection domain spanned by a radiation sensitive surface of the detector (D). The system includes a motion checker (MC) configured to operate in the projection domain to decide whether the projection image is corrupted by motion of the object during acquisition.Type: GrantFiled: August 20, 2019Date of Patent: September 10, 2024Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Dirk Schaefer, Christian Haase, Michael Grass
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Patent number: 12053334Abstract: The present invention relates to a device (1) for providing image data during an extraction procedure for extracting a lead from the body of a subject using an extraction device (7). The device comprises an input (2) for receiving live x-ray projection image data of the lead during the extraction procedure and for receiving three-dimensional image data as acquired before the extraction procedure. A processing unit (3) determines a position of the extraction device (7) in the three-dimensional image data by detecting the position in the live projection image data during the procedure and correlates this position in the live projection image data with the position in the three-dimensional image data. An output (4) generates an image of a cross-sectional view of the lead and/or its surrounding body structure at the determined position based on the three-dimensional image data.Type: GrantFiled: September 20, 2019Date of Patent: August 6, 2024Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Michael Grass, Dirk Schaefer, Christian Haase, Wade Allen Bowe
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Publication number: 20240202943Abstract: The present invention relates to a computer-implemented method for generating a simulated CBCT image based on a computed tomography image. A computed tomography image is converted into attenuation coefficients of the represented tissue, and the computed tomography image is forward-projected to a projection image based on scanner parameters of a simulated CBCT scanner. After the addition of artificial noise to the projection image representing noise detected by the simulated CBCT scanner, the projection image is back-projected with a reconstruction algorithm for the generation of a simulated CBCT image of the subject. The present invention relates further to a method for generating training data for training an artificial intelligence module based on the simulated images, and to methods for registering a computed tomography image to a CBCT image and for segmenting a CBCT image with an artificial intelligence module trained with training data comprising the simulated CBCT images.Type: ApplicationFiled: December 14, 2023Publication date: June 20, 2024Inventors: ALEXANDER SCHMIDT-RICHBERG, SVEN PETER PREVRHAL, RAFAEL WIEMKER, TOBIAS KLINDER, HEIKE CAROLUS, DIRK SCHAEFER
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Publication number: 20240177831Abstract: The application describes various embodiments of a medical system, a computer program, and a method related to sequential transmission of compressed medical image data. As an example, a medical system comprising a local memory storing local machine executable instructions and a local computational system. Execution of the machine executable instructions further causes the computational system to: receive a feature vector descriptive of medical image data, wherein the feature vector is configured to be input into a decoder neural network, wherein the decoder neural network is configured to output an approximation of the medical image data when receiving at least a part of the feature vector as input, wherein the feature vector comprises a ranking assigning an importance to elements of the feature vector; and sequentially transmit portions of the feature vector to a remote computational system via a network connection, wherein the portions of the features vector with a higher importance are transmitted first.Type: ApplicationFiled: November 30, 2023Publication date: May 30, 2024Inventors: Steffen RENISCH, Thomas NETSCH, Dirk SCHAEFER
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Patent number: 11922269Abstract: The present disclosure is concerned with the technical field of marking objects with optically readable codes and reading out (decoding) the codes. Subjects of the present disclosure are a method, a system and a computer program product for decoding optically readable codes introduced in surfaces of objects.Type: GrantFiled: December 15, 2022Date of Patent: March 5, 2024Assignee: BAYER AKTIENGESELLSCHAFTInventors: Benjamin Hoetter, Gregor Fischer, Klaus Ruelberg, Dirk Schäfer
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Publication number: 20240065635Abstract: A mechanism for generating and providing one or more quality measures of a mapping function (for mapping electrical responses of an electrode to a predicted position of that electrode within an anatomical cavity) to a user, such as a clinician. Each quality measure predicts or indicates a quality of a mapping function with respect to a particular part of an anatomical cavity, for instance, indicating a predicted accuracy of the mapping function for predicting a position of an electrode located within a particular portion of the anatomical cavity. A user-perceptible output is provided that indicates the quality measure for the user.Type: ApplicationFiled: December 22, 2021Publication date: February 29, 2024Inventors: Rogier Rudolf WILDEBOER, Josephus Arnoldus Johannes Maria KAHLMAN, Bernardus Hendrikus Wilhelmus HENDRIKS, Dirk SCHÄFER
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Patent number: 11875429Abstract: An apparatus for image reconstruction that includes input circuitry configured to acquire, from an image sequence, first and second 2D projection data of a region of interest of an object at respective acquisition times; and provide first 3D object data of a first object in a region of interest and second 3D object data of a second object in a region of interest. The apparatus also includes a processor configured to generate a first registration of the first and/or second 3D object data to the first 2D projection data and a second registration of the first and/or second 3D object data to the second 2D projection data; provide a vector field defining motion of the second object relative to the first object between the acquisition times based on the registrations; generate corrected projection data using the vector field; and generate a motion-compensated image sequence based on the corrected projection data.Type: GrantFiled: March 18, 2019Date of Patent: January 16, 2024Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Christian Haase, Michael Grass, Dirk Schaefer
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Publication number: 20230397958Abstract: A mechanism for generating a mapping function for mapping measurements taken at an electrode within crossing electric fields to a position or positions within a multidimensional co-ordinate system. The values for coefficients of the mapping function are generated using a first machine-learning algorithm, which receives, as input, example measurements (or responses) of the electrode and provides, as output, values for the coefficients for the mapping function. There is proposed a method and processing system for carrying out this mechanism.Type: ApplicationFiled: December 20, 2021Publication date: December 14, 2023Inventors: Rogier Rudolf WILDEBOER, Bernardus Hendrikus Wilhelmus HENDRIKS, Rik Jozef Martinus JANSSEN, Dirk SCHAEFER
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Publication number: 20230196044Abstract: The present disclosure is concerned with the technical field of marking objects with optically readable codes and reading out (decoding) the codes. Subjects of the present disclosure are a method, a system and a computer program product for decoding optically readable codes introduced in surfaces of objects.Type: ApplicationFiled: December 15, 2022Publication date: June 22, 2023Inventors: Benjamin HOETTER, Gregor FISCHER, Klaus RUELBERG, Dirk SCHÄFER
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Patent number: 11663756Abstract: An image processing system (IPS) and related method. The system (IPS) comprises an input interface (IN) for receiving an image (IM) of an object (OB) acquired by an imaging apparatus (IA). A kernel provider (KP) of the system (IPS) is configured to provide respective scatter kernels for at least two scatter types. A scatter correction module (SCM) of the system (IPS) is configured to perform a correction in the image based on the provided at least two kernels.Type: GrantFiled: May 28, 2019Date of Patent: May 30, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Bernd Menser, Peter Prinsen, Dirk Schaefer, Jens Wiegert
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Publication number: 20230000458Abstract: An imaging system (MIS), optionally a medical imaging system, with wireless communication capability and related method. The imaging system comprises a gantry (RG) rotatable around a rotation axis. The gantry includes a detector device (D) capable of recording, in plural spatial positions, measurement data in relation to a subject (such as a patient) (PAT) to be imaged. The system also includes a radio transmitter (TX) for generating a directed radio beam propagatable along a propagation axis to transmit the measurement data to a radio receiver (RX). The radio transmitter (TX) is arranged at the rotatable gantry and is operable so that the propagation direction intersects the rotation axis in a location that is situated away from the rotatable gantry.Type: ApplicationFiled: December 3, 2020Publication date: January 5, 2023Inventors: FRANK BERGNER, CLAAS BONTUS, KLAUS ERHARD, NIKOLAS DAVID SCHNELLBÄCHER, DIRK SCHÄFER, SVEN PETER PREVRHAL, PETER VERNICKEL
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Publication number: 20220366273Abstract: The present invention is concerned with the predicting of crop protection product residues in plants or parts of plants intended for human and/or animal consumption, preferably in fruit and/or vegetables. The present invention provides a method, a device, a system and a computer program product for prediction of crop protection product residues.Type: ApplicationFiled: August 4, 2020Publication date: November 17, 2022Applicant: Bayer AktiengesellschaftInventors: Kai WIRTZ, Rolf Christian BECKER, Linus GOERLITZ, Dirk SCHAEFER, Fabian WEYSSER
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Publication number: 20220351369Abstract: A method and apparatus for analyzing diagnostic image data are provided in which a plurality of acquisition images of a vessel of interest having been acquired with a pre-defined acquisition method is received at a trained classifying device and classified, by the classifying device, to extract at least one quantitative feature of the vessel of interest from at least one acquisition image of the plurality of acquisition images. The at least one quantitative feature is then output associated with the at least one acquisition image while the acquisition of the diagnostic image data is still in progress and one or more adjustable image acquisition settings are adjusted based on the at least one quantitative feature to optimize the acquisition of the diagnostic image data.Type: ApplicationFiled: June 29, 2020Publication date: November 3, 2022Inventors: Christian HAASE, Dirk SCHAEFER, Michael GRASS