Patents by Inventor Parmeshwar Khurd
Parmeshwar Khurd 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: 9521994Abstract: In a method for image guided prostate cancer needle biopsy, a first registration is performed to match a first image of a prostate to a second image of the prostate. Third images of the prostate are acquired and compounded into a three-dimensional (3D) image. The prostate in the compounded 3D image is segmented to show its border. A second registration and then a third registration different from the second registration is performed on distance maps generated from the prostate borders of the first image and the compounded 3D image, wherein the first and second registrations are based on a biomechanical property of the prostate. A region of interest in the first image is mapped to the compounded 3D image or a fourth image of the prostate acquired with the second modality.Type: GrantFiled: May 6, 2010Date of Patent: December 20, 2016Assignee: Siemens Healthcare GmbHInventors: Ali Kamen, Wolfgang Wein, Parmeshwar Khurd, Mamadou Diallo, Ralf Nanke, Jens Fehre, Berthold Kiefer, Martin Requardt, Clifford Weiss
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Patent number: 9478022Abstract: A method and system for integrating radiological and pathological information for cancer diagnosis, therapy selection, and monitoring is disclosed. A radiological image of a patient, such as a magnetic resonance (MR), computed tomography (CT), positron emission tomography (PET), or ultrasound image, is received. A location corresponding to each of one or more biopsy samples is determined in the at least one radiological image. An integrated display is used to display a histological image corresponding to the each biopsy samples, the radiological image, and the location corresponding to each biopsy samples in the radiological image. Pathological information and radiological information are integrated by combining features extracted from the histological images and the features extracted from the corresponding locations in the radiological image for cancer grading, prognosis prediction, and therapy selection.Type: GrantFiled: August 22, 2012Date of Patent: October 25, 2016Assignee: Siemens Medical Solutions USA, Inc.Inventors: Ali Kamen, Leo Grady, Gianluca Paladini, Parmeshwar Khurd, Oliver Kutter, Dorin Comaniciu
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Patent number: 9305352Abstract: Deformable, anatomical trees represented by scan data from different times are matched. Coherent point drift (CPD) solved using expectation maximization is enhanced with tangent or other curve information. By including point-curve information, another characteristic than GMM-based probabilities are included in the cost function for matching. The angle information provided by the tangent, normal, or other point-curve measure may more likely match points in one set representing a tree to points in another set representing the tree.Type: GrantFiled: October 31, 2013Date of Patent: April 5, 2016Assignee: SIEMENS CORPORATIONInventors: Sofiene Jenzri, Parmeshwar Khurd
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Patent number: 9129422Abstract: A computer-implemented method of performing a combined surface reconstruction and registration of stereo laparoscopic images includes a computer system generating an intraoperative three-dimensional model of an anatomical area of interest and receiving a plurality of stereo endoscopic images of the anatomical area of interest from a laparoscope. The computer system performs a first stereo reconstruction process using the stereo endoscopic images to yield a first surface image corresponding to the anatomical area of interest and aligns the first surface image with a surface of the intraoperative three-dimensional model using a rigid registration process.Type: GrantFiled: February 6, 2014Date of Patent: September 8, 2015Assignee: Siemens AktiengesellschaftInventors: Peter Mountney, Maximilian Allan, Ankur Kapoor, Parmeshwar Khurd, Philip Mewes
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Patent number: 9047660Abstract: Methods for analyzing biomedical data include: (a) obtaining macroscopic imaging data; (b) obtaining histopathological imaging data; (c) executing a parallel algorithm stored on a non-transient computer-readable medium to compute one or a plurality of network cycle features of a relative neighborhood graph derived from the histopathological imaging data; (d) registering the macroscopic imaging data and the histopathological imaging data; and (e) correlating the macroscopic imaging data and the network cycle features. Systems for analyzing biomedical data and computer readable storage media are described.Type: GrantFiled: February 28, 2013Date of Patent: June 2, 2015Assignees: Siemens Corporation, Beth Israel Deaconess Medical CenterInventors: Parmeshwar Khurd, Ali Kamen, Hari Sundar, John V. Frangioni, Summer Gibbs-Strauss
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Patent number: 8983230Abstract: An image mosaicking method includes performing pairwise registration of a plurality of tiles (101), determining absolute homographies for each of the plurality of tiles according to the pairwise registration (102B), and performing a blending of the plurality of tiles to obtain a stitched image according to the absolute homographies (103).Type: GrantFiled: July 25, 2011Date of Patent: March 17, 2015Assignees: Siemens Corporation, Beth Israel Deaconess Medical CenterInventors: Parmeshwar Khurd, Rafiou Oketokoun, Ali Kamen, Leo Grady, Hari Sundar, John V. Frangioni, Tejas Gajera
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Publication number: 20140314292Abstract: A method and system for integrating radiological and pathological information for cancer diagnosis, therapy selection, and monitoring is disclosed. A radiological image of a patient, such as a magnetic resonance (MR), computed tomography (CT), positron emission tomography (PET), or ultrasound image, is received. A location corresponding to each of one or more biopsy samples is determined in the at least one radiological image. An integrated display is used to display a histological image corresponding to the each biopsy samples, the radiological image, and the location corresponding to each biopsy samples in the radiological image. Pathological information and radiological information are integrated by combining features extracted from the histological images and the features extracted from the corresponding locations in the radiological image for cancer grading, prognosis prediction, and therapy selection.Type: ApplicationFiled: August 22, 2012Publication date: October 23, 2014Inventors: Ali Kamen, Leo Grady, Gianluca Paladini, Parmeshwar Khurd, Oliver Kutter, Dorin Comaniciu
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Publication number: 20140241600Abstract: A computer-implemented method of performing a combined surface reconstruction and registration of stereo laparoscopic images includes a computer system generating an intraoperative three-dimensional model of an anatomical area of interest and receiving a plurality of stereo endoscopic images of the anatomical area of interest from a laparoscope. The computer system performs a first stereo reconstruction process using the stereo endoscopic images to yield a first surface image corresponding to the anatomical area of interest and aligns the first surface image with a surface of the intraoperative three-dimensional model using a rigid registration process.Type: ApplicationFiled: February 6, 2014Publication date: August 28, 2014Applicant: Siemens AktiengesellschaftInventors: Peter Mountney, Maximilian Allan, Ankur Kapoor, Parmeshwar Khurd, Philip Mewes
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Patent number: 8809791Abstract: A continuous time-of-flight scatter simulation method is provided, with a related method of correcting PET imaging data to compensate for photon scatter. Scatter contributions from each imaging pixel in a field of view may be calculated without binning data.Type: GrantFiled: April 14, 2010Date of Patent: August 19, 2014Assignee: Koninklijke Philips N.V.Inventors: Patrick Olivier, Parmeshwar Khurd
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Patent number: 8811701Abstract: Automatic prostate localization in T2-weighted MR images facilitate labor-intensive cancer imaging techniques. Methods and systems to accurately segment the prostate gland in MR images are provided and address large variations in prostate anatomy and disease, intensity inhomogeneities, and artifacts induced by endorectal coils. A center of the prostate is automatically detected with a boosted classifier trained on intensity based multi-level Gaussian Mixture Model Expectation Maximization (GMM-EM) segmentations of the raw MR images. A shape model is used in conjunction with Multi-Label Random Walker (MLRW) to constrain the seeding process within MLRW.Type: GrantFiled: November 8, 2011Date of Patent: August 19, 2014Assignee: Siemens AktiengesellschaftInventors: Parmeshwar Khurd, Leo Grady, Ali Kamen, Mamadou Diallo, Kalpitkumar Gajera, Peter Gall, Martin Requardt, Berthold Kiefer, Clifford R. Weiss
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Publication number: 20140153802Abstract: Deformable, anatomical trees represented by scan data from different times are matched. Coherent point drift (CPD) solved using expectation maximization is enhanced with tangent or other curve information. By including point-curve information, another characteristic than GMM-based probabilities are included in the cost function for matching. The angle information provided by the tangent, normal, or other point-curve measure may more likely match points in one set representing a tree to points in another set representing the tree.Type: ApplicationFiled: October 31, 2013Publication date: June 5, 2014Applicant: SIEMENS CORPORATIONInventors: Sofiene Jenzri, Parmeshwar Khurd
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Publication number: 20130243292Abstract: Methods for analyzing biomedical data include: (a) obtaining macroscopic imaging data; (b) obtaining histopathological imaging data; (c) executing a parallel algorithm stored on a non-transient computer-readable medium to compute one or a plurality of network cycle features of a relative neighborhood graph derived from the histopathological imaging data; (d) registering the macroscopic imaging data and the histopathological imaging data; and (e) correlating the macroscopic imaging data and the network cycle features. Systems for analyzing biomedical data and computer readable storage media are described.Type: ApplicationFiled: February 28, 2013Publication date: September 19, 2013Applicant: Siemens CorporationInventors: Parmeshwar Khurd, Ali Kamen, Hari Sundar, John V. Frangioni, Summer Gibbs-Strauss
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Publication number: 20130243352Abstract: An image mosaicking method includes performing pairwise registration of a plurality of tiles (101), determining absolute homographies for each of the plurality of tiles according to the pairwise registration (102B), and performing a blending of the plurality of tiles to obtain a stitched image according to the absolute homographies (103)Type: ApplicationFiled: July 25, 2011Publication date: September 19, 2013Applicants: Beth Israel Deaconess Medical Center, Siemens CorporationInventors: Parmeshwar Khurd, Rafiou Oketokoun, Ali Kamen, Leo Grady, Hari Sundar, John V. Frangioni
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Publication number: 20130064439Abstract: Automatic prostate localization in T2-weighted MR images facilitate labor-intensive cancer imaging techniques. Methods and systems to accurately segment the prostate gland in MR images are provided and address large variations in prostate anatomy and disease, intensity inhomogeneities, and artifacts induced by endorectal coils. A center of the prostate is automatically detected with a boosted classifier trained on intensity based multi-level Gaussian Mixture Model Expectation Maximization (GMM-EM) segmentations of the raw MR images. A shape model is used in conjunction with Multi-Label Random Walker (MLRW) to constrain the seeding process within MLRW.Type: ApplicationFiled: November 8, 2011Publication date: March 14, 2013Applicant: Siemens CorporationInventors: Parmeshwar Khurd, Leo Grady, Ali Kamen, Mamadou Diallo, Kalpitkumar Gajera, Peter Gall, Martin Requardt, Berthold Kiefer, Clifford R. Weiss
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Publication number: 20120049053Abstract: A continuous time-of-flight scatter simulation method is provided, with a related method of correcting PET imaging data to compensate for photon scatter. Scatter contributions from each imaging pixel in a field of view may be calculated without binning data.Type: ApplicationFiled: April 14, 2010Publication date: March 1, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N. V.Inventors: Patrick Olivier, Parmeshwar Khurd
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Publication number: 20100286517Abstract: In a method for image guided prostate cancer needle biopsy, a first registration is performed to match a first image of a prostate to a second image of the prostate. Third images of the prostate are acquired and compounded into a three-dimensional (3D) image. The prostate in the compounded 3D image is segmented to show its border. A second registration and then a third registration different from the second registration is performed on distance maps generated from the prostate borders of the first image and the compounded 3D image, wherein the first and second registrations are based on a biomechanical property of the prostate. A region of interest in the first image is mapped to the compounded 3D image or a fourth image of the prostate acquired with the second modality.Type: ApplicationFiled: May 6, 2010Publication date: November 11, 2010Applicant: Siemens CorporationInventors: Ali Kamen, Wolfgang Wein, Parmeshwar Khurd, Mamadou Diallo, Ralf Nanke, Jens Fehre, Berthold Kiefer, Martin Requardt, Clifford Weiss