Patents by Inventor Asher Gringauz
Asher Gringauz 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: 10169848Abstract: A method includes obtaining original image data and obtaining de-noised image data, wherein the de-noised image data is the original image data after de-noising the original image data. The method further includes determining a noise pattern for the original image data. The method further includes estimating underlying local structure from the original image data based on the noise pattern. The method further includes restoring low contrast structure that is lost during the de-noising of the original image data to the de-noised image data based on the estimated underlying local structure by adding the estimated underlying local structure to the de-noise imaged data, generating low contrast structure enhanced de-noised image data.Type: GrantFiled: April 14, 2015Date of Patent: January 1, 2019Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Liran Goshen, Asher Gringauz
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Patent number: 10096120Abstract: A method for segmenting bone in spectral image data is described herein. The spectral image data includes at least a first set of image data corresponding to a first energy and second set of image data corresponding to a second different energy. The method includes obtaining the spectral image data. The method further includes extracting a set of features for each voxel in spectral image data. The method further includes determining, for each voxel, a probability that each voxel represents bone structure based on the set of features. The method further includes extracting bone structure from the spectral image data based on the probabilities.Type: GrantFiled: December 2, 2014Date of Patent: October 9, 2018Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Liran Goshen, Asher Gringauz
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Publication number: 20170372496Abstract: An imaging system (100) includes an anti-correlated noise filter (120), which jointly filters noise from a first portion (116) and a second portion (118), and the first portion (116) and the second portion (118) include anti-correlated noise.Type: ApplicationFiled: December 7, 2015Publication date: December 28, 2017Inventors: Kevin Martin BROWN, Liran GOSHEN, Asher GRINGAUZ, Stanislav ZABIC
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Patent number: 9754389Abstract: A method for improving image quality of image data includes analyzing, for each of a plurality of voxels of image data, a set of entries of a dictionary, wherein an entry represents a mapping between a lower resolution patch of voxels and a corresponding higher resolution patch of voxel or a local neighborhood around a voxel, deriving, for each of the plurality of voxels, a subspace based on the analysis, wherein the subspace is for one of the mapping or the local neighborhood, and restoring target image data based on the subspaces, wherein the target image data is image data with higher image resolution or reduced image noise.Type: GrantFiled: July 25, 2013Date of Patent: September 5, 2017Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Liran Goshen, Asher Gringauz
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Publication number: 20170039685Abstract: A method includes obtaining original image data and obtaining de-noised image data, wherein the de-noised image data is the original image data after de-noising the original image data. The method further includes determining a noise pattern for the original image data. The method further includes estimating underlying local structure from the original image data based on the noise pattern. The method further includes restoring low contrast structure that is lost during the de-noising of the original image data to the de-noised image data based on the estimated underlying local structure by adding the estimated underlying local structure to the de-noise imaged data, generating low contrast structure enhanced de-noised image data.Type: ApplicationFiled: April 14, 2015Publication date: February 9, 2017Inventors: Liran GOSHEN, Asher GRINGAUZ
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Publication number: 20160307330Abstract: A method for segmenting bone in spectral image data is described herein. The spectral image data includes at least a first set of image data corresponding to a first energy and second set of image data corresponding to a second different energy. The method includes obtaining the spectral image data. The method further includes extracting a set of features for each voxel in spectral image data. The method further includes determining, for each voxel, a probability that each voxel represents bone structure based on the set of features. The method further includes extracting bone structure from the spectral image data based on the probabilities.Type: ApplicationFiled: December 2, 2014Publication date: October 20, 2016Inventors: Liran GOSHEN, Asher GRINGAUZ
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Patent number: 9159124Abstract: A method includes enhancing a contrast to noise ratio (CNR) of image data, generating CNR enhanced image data, wherein the CNR enhanced image data has a substantially same image quality as the image data. A computing system (118) includes a computer readable storage medium (122) encoded with computer readable instructions for enhancing a contrast to noise ratio (CNR) of image data and one or more processors (120), which, when executing the computer readable instructions, causes the computing system to enhance the CNR of the image data. A method includes generating CNR enhanced image data, wherein CNR enhanced image data has a substantially same noise level, noise power spectrum, and spatial resolution of the image data.Type: GrantFiled: November 16, 2011Date of Patent: October 13, 2015Assignee: Koninklijke Philips N.V.Inventors: Liran Goshen, Asher Gringauz, Yechiel Lamash, Andrei Feldman, Guido Pardo-Roques, Jonathan Sapir
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Publication number: 20150154766Abstract: A method for improving image quality of image data includes analyzing, for each of a plurality of voxels of image data, a set of entries of a dictionary, wherein an entry represents a mapping between a lower resolution patch of voxels and a corresponding higher resolution patch of voxel or a local neighborhood around a voxel, deriving, for each of the plurality of voxels, a subspace based on the analysis, wherein the subspace is for one of the mapping or the local neighborhood, and restoring target image data based on the subspaces, wherein the target image data is image data with higher image resolution or reduced image noise.Type: ApplicationFiled: July 25, 2013Publication date: June 4, 2015Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Liran Goshen, Asher Gringauz
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Patent number: 8938110Abstract: A method includes generating enhanced image data based on lower dose image data and a predetermined image quality threshold, wherein an image quality of the enhanced image data is substantially similar to an image quality of higher dose image data, and a system includes an image quality enhancer (128) that generates enhanced image data based on lower dose image data and a predetermined image quality threshold, wherein an image quality of the enhanced image data is substantially similar to an image quality of higher dose image data.Type: GrantFiled: October 29, 2010Date of Patent: January 20, 2015Assignee: Koninklijke Philips N.V.Inventors: Liran Goshen, Kevin M. Brown, Stanislav Zabic, Jens Wiegert, Asher Gringauz
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Patent number: 8781192Abstract: A method for classifying tissue as normal or abnormal tissue includes obtaining segmented reconstructed volumetric image data for predetermined tissue of interest, generating a 2D voxel representation of the segmented reconstructed volumetric image data, and classifying voxels of the segmented reconstructed volumetric image data as corresponding to abnormal and normal tissue based on the 2D voxel representation.Type: GrantFiled: April 27, 2011Date of Patent: July 15, 2014Assignee: Koninklijke Philips N.V.Inventors: Yechiel Lamash, Jonathan Lessick, Asher Gringauz
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Publication number: 20130243348Abstract: A method includes enhancing a contrast to noise ratio (CNR) of image data, generating CNR enhanced image data, wherein the CNR enhanced image data has a substantially same image quality as the image data. A computing system (118) includes a computer readable storage medium (122) encoded with computer readable instructions for enhancing a contrast to noise ratio (CNR) of image data and one or more processors (120), which, when executing the computer readable instructions, causes the computing system to enhance the CNR of the image data. A method includes generating CNR enhanced image data, wherein CNR enhanced image data has a substantially same noise level, noise power spectrum, and spatial resolution of the image data.Type: ApplicationFiled: November 16, 2011Publication date: September 19, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Liran Goshen, Asher Gringauz, Yechiel Lamash, Andrei Feldman, Guido Pardo-Roques, Jonathan Sapir
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Publication number: 20130077838Abstract: A method for classifying tissue as normal or abnormal tissue includes obtaining segmented reconstructed volumetric image data for predetermined tissue of interest, generating a 2D voxel representation of the segmented reconstructed volumetric image data, and classifying voxels of the segmented reconstructed volumetric image data as corresponding to abnormal and normal tissue based on the 2D voxel representation.Type: ApplicationFiled: April 27, 2011Publication date: March 28, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Yechiel Lamash, Jonathan Lessick, Asher Gringauz
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Publication number: 20120224760Abstract: A method includes generating enhanced image data based on lower dose image data and a predetermined image quality threshold, wherein an image quality of the enhanced image data is substantially similar to an image quality of higher dose image data, and a system includes an image quality enhancer (128) that generates enhanced image data based on lower dose image data and a predetermined image quality threshold, wherein an image quality of the enhanced image data is substantially similar to an image quality of higher dose image data.Type: ApplicationFiled: October 29, 2010Publication date: September 6, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Liran Goshen, Kevin M. Brown, Stanislav Zabic, Jens Wiegert, Asher Gringauz
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Patent number: 6845143Abstract: A method for artifact reduction in CT images comprising reconstructing a first data image using an inexact reconstruction algorithm, segmenting the first data image to provide a second image with high attenuation objects separate from low attenuation objects, reprojecting the second image to form a second set of data, reconstructing a third image from the second data set using an inexact reconstruction algorithm; and subtracting at least those portions of the third image outside the high attenuation object from the first image.Type: GrantFiled: May 20, 2001Date of Patent: January 18, 2005Assignee: Koninklijke Philips Electronics N.V.Inventors: Asher Gringauz, Yoav Bar
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Publication number: 20040146136Abstract: A method for artifact reduction in CT images comprising reconstructing a first data image using an inexact reconstruction algorithm, segmenting the first data image to provide a second image with high attenuation objects separate from low attenuation objects, reprojecting the second image to form a second set of data, reconstructing a third image from the second data set using an inexact reconstruction algorithm; and subtracting at least those portions of the third image outside the high attenuation object from the first image.Type: ApplicationFiled: March 29, 2004Publication date: July 29, 2004Inventors: Asher Gringauz, Yoav Bar