Patents by Inventor Dirk Schafer
Dirk Schafer 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).
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
Patent number: 11419571Abstract: Mechanical image acquisition systems (such as medical C-arms) frequently accumulate geometrical errors which must be calibrated out using a calibration phantom. A more frequent regime of system calibration implies a less frequent use of the C-arm for clinical applications. The present application proposes to identify common biases between the acquired projection frame sequences from the same mechanical image acquisition system in first and second acquisitions, and to compare this to expected calibration data of the mechanical image acquisition system to generate frame deviation measures. If a resemblance between the first and second sequences of frame deviation measures is obtained, one or more calibration actions are performed (such as alerting the user that calibration should be provided, and/or automatically correcting for the geometry deviation).Type: GrantFiled: April 5, 2019Date of Patent: August 23, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Christian Haase, Michael Grass, Dirk Schafer
-
Publication number: 20220136299Abstract: The invention relates to a hinge lock consisting of a first hinge part (1) for fastening to the outside of a door and a second hinge part (2) for fastening on the outside of a door frame, wherein the first hinge part (1) has an actuating device, by means of which the first (1) and the second hinge part (2) can be unlocked and locked with one another. The actuating device interacts with a shaft (16), which is suitable for passing through the door. An inner handle (23) is arranged at the end of the shaft (16) facing away from the actuating device, by means of which the first (1) and the second hinge part (2) can be unlocked and locked with one another. The shaft (16) is surrounded by at least one pipe part (18, 18?).Type: ApplicationFiled: February 26, 2020Publication date: May 5, 2022Inventors: Maxim Kaganov, Dirk Schäfer
-
Patent number: 11219425Abstract: The invention relates to off-center detector X-ray tomography reconstruction of an image of an object on the basis of projection data acquired during a rotation of an X-ray source and the off-center detector around the object in two rotational passes of less than 360°, wherein a focus point of the X-ray beam travels along largely overlapping arcs (401, 402) in the two rotational passes, the off-center detector being positioned asymmetrically with respect to a central of the X-ray beam and a direction of a detector offset being reversed between the passes. According to the invention, redundancy weighting of the projection data with respect to a redundant acquisition of projection values during each of the rotational passes is made using a redundancy weighting function determined on the basis of a union of the arcs (401, 402).Type: GrantFiled: December 19, 2017Date of Patent: January 11, 2022Assignees: KONINKLIJKE PHILIPS N.V., ION BEAM APPLICATIONS S.A.Inventor: Dirk Schäfer
-
Patent number: 11127173Abstract: The invention relates to off-center detector 3D X-ray or proton radiography reconstruction. Redundancy weighting with a steep weighting function around the iso-axis typically leads to artifacts in the reconstruction, for example, if inconsistencies between two nominal redundant projections occur, e.g. due to slightly incorrect detector calibration or scatter correction, etc. With the present invention, an approach is presented for overcoming or mitigating these problems.Type: GrantFiled: December 20, 2017Date of Patent: September 21, 2021Assignee: KONINKLIJKE PHILIPS N. V.Inventors: Dirk Schäfer, Peter George Van De Haar, Sebastien Brousmiche
-
Publication number: 20210241389Abstract: A device for agricultural management includes a processing unit to determine at least one geographical location of an agricultural land area, the determination comprising utilization of a GPS unit. Agricultural data is provided from an input unit to the processing unit. The processing unit determines agricultural management data, the determination comprising utilization of the at least one geographical location and the agricultural data. An output unit outputs agricultural management information to a user of the device on the basis of the agricultural management data.Type: ApplicationFiled: July 26, 2018Publication date: August 5, 2021Applicant: Bayer Business Services GMBHInventor: Dirk SCHÄFER
-
Publication number: 20210153836Abstract: Mechanical image acquisition systems (such as medical C-arms) frequently accumulate geometrical errors which must be calibrated out using a calibration phantom. A more frequent regime of system calibration implies a less frequent use of the C-arm for clinical applications. The present application proposes to identify common biases between the acquired projection frame sequences from the same mechanical image acquisition system in first and second acquisitions, and to compare this to expected calibration data of the mechanical image acquisition system to generate frame deviation measures. If a resemblance between the first and second sequences of frame deviation measures is obtained, one or more calibration actions are performed (such as alerting the user that calibration should be provided, and/or automatically correcting for the geometry deviation).Type: ApplicationFiled: April 5, 2019Publication date: May 27, 2021Inventors: CHRISTIAN HAASE, MICHAEL GRASS, DIRK SCHAFER
-
Patent number: 10939881Abstract: The present invention relates to a guidance device (10) for a TEE probe (20), a medical imaging system (1), a method for guiding a TEE probe (20), a computer program element for controlling such device and a computer readable medium having stored such computer program element. The guidance device (10) for a TEE probe (20) comprises an image data provision unit (11), and a processing unit (12). The image data provision unit (11) is configured to provide first image data showing an interventional device (40) and a TEE probe (20) in an initial position and orientation. The processing unit (12) is configured to determine a centerline of the interventional device (40) in the first image data. The processing unit (12) is configured to determine a plane (41) orthogonal to a tangent of the centerline as viewing plane. The processing unit (12) is configured to calculate an imaging plane and an imaging orientation of the TEE probe (20) to lie approximately in the viewing plane.Type: GrantFiled: June 10, 2015Date of Patent: March 9, 2021Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Dirk Schäfer, Eberhard Sebastian Hansis, Niels Nijhof, Michael Grass
-
Publication number: 20200379120Abstract: A hand held device for land management is described for a user of the device to provide agricultural information relating to a field, wherein the agricultural information includes information on at least one crop. A transmitter of the device transmits information including the agricultural information relating to the field. A receiver of the device receives agricultural data that includes best practices for the growing of the at least one crop. A processing unit of the device determines agricultural management information on the basis of the agricultural data. An output unit of the device outputs the agricultural management information to the user of the device.Type: ApplicationFiled: July 26, 2018Publication date: December 3, 2020Applicant: Bayer Business Services GMBHInventor: Dirk SCHÄFER
-
Publication number: 20200311828Abstract: A hand held device for economic agricultural management is described for a user of the device to provide agricultural information relating to a field, wherein the agricultural information includes information on at least one crop. A transmitter of the device transmits information including the agricultural information relating to the field. A receiver of the device receives agricultural data that includes economic information relating to the at least one crop. A processing unit of the device determines economic agricultural management information on the basis of the agricultural data. An output unit of the device outputs the economic agricultural management information to the user of the device.Type: ApplicationFiled: July 26, 2018Publication date: October 1, 2020Applicant: Bayer Business Services GMBHInventor: Dirk SCHÄFER
-
Patent number: 10769787Abstract: The present invention relates to providing a projection data for providing a guidance image. In order to provide an enhanced guiding image technique for generating a guidance image of the patient's anatomy to be projected on the body surface of the patient, such that a at least a basis for a corrected guidance image for a better correlation to the patient's current motion can be provided, in particular to the patient's current breathing motion state, a device (10) for providing a projection data set is provided that comprises a storage means (12), an input interface (14), a processing unit (16) and an output interface (18). The storage means is configured to store a pre-determined basis data set representing a 3D tomographic image of a subject (20). The input interface is configured to receive reference data representing a current spatial depiction at least of a target region (22) of the subject. The processing unit is configured to register the reference data on the pre-determined basis data set.Type: GrantFiled: December 22, 2016Date of Patent: September 8, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Michael Grass, Dirk Schäfer, Thirukumaran Thangaraj Kanagasabapathi, Bernardus Hendrikus Wilhelmus Hendriks
-
Patent number: 10736590Abstract: A method includes receiving radiation with a hybrid data detection system of an imaging system. The hybrid data detection system includes a hybrid data detector array with a set of spectral detectors and a set of integrating detectors that are arranged along a transverse axis of an examination region. The method further includes generating a set of truncated spectral projections with the first set of spectral detectors. The method further includes estimating a set of spectral projections for the integrating detectors. The method further includes combining the set of truncated spectral projections and the estimated set of spectral projections. The method further includes estimating a set of spectral projections based on the combined set to produce a complete set of spectral projections. The method further includes processing the complete set of spectral projections to generate volumetric image data.Type: GrantFiled: September 16, 2015Date of Patent: August 11, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Dirk Schafer, Michael Grass, Thomas Koehler, Roland Proksa
-
Publication number: 20200085389Abstract: The invention relates to off-center detector X-ray tomography reconstruction of an image of an object on the basis of projection data acquired during a rotation of an X-ray source and the off-center detector around the object in two rotational passes of less than 360°, wherein a focus point of the X-ray beam travels along largely overlapping arcs (401, 402) in the two rotational passes, the off-center detector being positioned asymmetrically with respect to a central of the X-ray beam and a direction of a detector offset being reversed between the passes. According to the invention, redundancy weighting of the projection data with respect to a redundant acquisition of projection values during each of the rotational passes is made using a redundancy weighting function determined on the basis of a union of the arcs (401, 402).Type: ApplicationFiled: December 19, 2017Publication date: March 19, 2020Inventor: Dirk SCHÄFER
-
Publication number: 20200090379Abstract: The invention relates to off-center detector 3D X-ray or proton radiography reconstruction. Redundancy weighting with a steep weighting function around the iso-axis typically leads to artifacts in the reconstruction, for example, if inconsistencies between two nominal redundant projections occur, e.g. due to slightly incorrect detector calibration or scatter correction, etc. With the present invention, an approach is presented for overcoming or mitigating these problems.Type: ApplicationFiled: December 20, 2017Publication date: March 19, 2020Inventors: Dirk SCHÄFER, Peter George VAN DE HAAR, Sebastien BROUSMICHE