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Katsuyuki Taguchi

from Elkridge, MD
Age ~59

Katsuyuki Taguchi Phones & Addresses

  • 5957 Hunt Club Rd, Elkridge, MD 21075 (410) 796-7112
  • Baltimore, MD
  • 31 Warren Rd, Cockeysville, MD 21030 (410) 628-0439
  • Lincolnshire, IL
  • Buffalo Grove, IL
  • Salt Lake City, UT

Work

Company: Johns hopkins university Nov 2019 Position: Professor

Education

Degree: Doctorates, Doctor of Philosophy School / High School: University of Tsukuba 2002 Specialities: Electrical Engineering, Information Science

Skills

Physics • Image Processing • Medical Imaging

Industries

Research

Resumes

Resumes

Katsuyuki Taguchi Photo 1

Professor

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Location:
Baltimore, MD
Industry:
Research
Work:
Johns Hopkins University
Professor

Toshiba Medical Systems Europe Apr 1991 - Apr 2005
Senior Specialist

Toshiba America Medical Systems Jun 2002 - Apr 2005
Senior Imaging Scientist

Bio-Imaging Research, Inc. 2002 - 2005
Visiting Scientist

University of Utah Sep 1998 - Mar 2000
Visiting Scholar
Education:
University of Tsukuba 2002
Doctorates, Doctor of Philosophy, Electrical Engineering, Information Science
Tokyo Institute of Technology 1989 - 1991
Master of Science, Masters, Mechanical Engineering
Tokyo Institute of Technology 1985 - 1989
Bachelors, Bachelor of Science, Mechanical Engineering
Skills:
Physics
Image Processing
Medical Imaging

Publications

Us Patents

Tilted Gantry Helical Cone-Beam Feldkamp Reconstruction For Multislice Ct

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US Patent:
6904117, Jun 7, 2005
Filed:
Oct 30, 2002
Appl. No.:
10/283080
Inventors:
Ilmar Arthur Hein - Schaumburg IL, US
Katsuyuki Taguchi - Buffalo Grove IL, US
Assignee:
Toshiba Corporation - Tokyo
International Classification:
A61B006/00
US Classification:
378 4, 378 15, 378901
Abstract:
An X-ray computed tomography apparatus includes a helical scanning device configured to collect projection data while at least one of a gantry and a couch moves along a body axial direction of an object on the couch when at least one of the gantry and the couch is tilted, the helical scanning device including an X-ray source configured to generate X-rays, and a detector disposed opposite the X-ray source and having detector elements arranged in a plurality of rows along the body axial direction, and a reconstructing device configured to reconstruct an image based on the projection data using cone-beam Feldkamp reconstruction.

Cone Beam Type Of X-Ray Ct System For Three-Dimensional Reconstruction

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US Patent:
6907100, Jun 14, 2005
Filed:
Oct 24, 2002
Appl. No.:
10/278872
Inventors:
Katsuyuki Taguchi - Buffalo Grove IL, US
Assignee:
Kabushiki Kaisha Toshiba - Tokyo
International Classification:
A61B006/03
US Classification:
378 4, 378 19, 378901
Abstract:
An X-ray CT system is equipped with a gantry, couch and control cabinet and configured to scan a cone-beam X-ray toward an object along a given orbit to acquire cone-beam data in which a three-dimensional distribution of an X-ray absorption coefficient within the object is reflected. The control cabinet decides a degree of reliability for the cone-beam data according to an acquisition time of the cone-beam data, and then decides a weight for three-dimensional Radon data from the cone-beam data on the basis of the degree of reliability. Using this weight, the control cabinet reconstructs the three-dimensional Radon data based on a three-dimensional reconstruction algorithm. Thus, when the three-dimensional reconstruction algorithm for cone-beam CT is applied to medical CT, artifacts attributable to object's motion can be suppressed and temporal resolution can be improved.

Cone-Beam Reconstruction Apparatus And Computed Tomography Apparatus

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US Patent:
6917663, Jul 12, 2005
Filed:
Jun 16, 2003
Appl. No.:
10/461401
Inventors:
Katsuyuki Taguchi - Buffalo Grove IL, US
Assignee:
Kabushiki Kaisha Toshiba - Tokyo
International Classification:
A61B006/03
US Classification:
378 8, 378 15, 378901
Abstract:
A method for obtaining data from CT scans, including obtaining projection data from at least one detector row in a CT system; applying a weighting function including cone-angle dependent weight to projection data; filtering weighted data; and backprojecting weighted data while accounting for cone-angle. The method finds application to an X-ray CT apparatus, including a helical scanning device configured to collect projection data while at least one of a gantry and a couch moves along an axial direction, the helical scanning device including an X-ray source to generate X-rays, and a detector having detector elements arranged in rows along the axial direction to produce projection data; and a processor, which includes a weighting device to apply a weighting function including cone-angle dependent weight to projection data, thereby obtaining weighted data, a filtering device to filter weighted data, and a backprojecting device to backproject weighted data while accounting for cone-angle.

Tilted Gantry Helical Cone-Beam Feldkamp Reconstruction For Multislice Ct

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US Patent:
7154986, Dec 26, 2006
Filed:
Dec 30, 2004
Appl. No.:
11/024683
Inventors:
Ilmar Arthur Hein - Schaumburg IL, US
Katsuyuki Taguchi - Buffalo Grove IL, US
Assignee:
Toshiba Corporation - Tokyo
International Classification:
A61B 6/00
US Classification:
378 4, 378 17, 378901
Abstract:
An X-ray computed tomography apparatus includes a helical scanning device configured to collect projection data while at least one of a gantry and a couch moves along a body axial direction of an object on the couch when at least one of the gantry and the couch is tilted, the helical scanning device including an X-ray source configured to generate X-rays, and a detector disposed opposite the X-ray source and having detector elements arranged in a plurality of rows along the body axial direction, and a reconstructing device configured to reconstruct an image based on the projection data using cone-beam Feldkamp reconstruction.

Method For Restoring Truncated Helical Cone-Beam Computed Tomography Data

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US Patent:
7359478, Apr 15, 2008
Filed:
Nov 18, 2004
Appl. No.:
10/990464
Inventors:
Aleksandr A. Zamyatin - Buffalo Grove IL, US
Katsuyuki Taguchi - Buffalo Grove IL, US
Michael D. Silver - Northbrook IL, US
Assignee:
Toshiba Medical Systems Corporation - Otawara-shi
Kabushiki Kaisha Toshiba - Tokyo
International Classification:
A61B 6/03
US Classification:
378 15, 378 4, 378 19, 378901
Abstract:
A method, system, and computer program product for compensating for the unavailability of projection data of a scanned object at a selected point, the selected point located outside a detection range of a detector. The method include the steps of obtaining projection data of the scanned object, and compensating for the unavailability of the projection data at the selected point based on the obtained projection data and coordinates of the selected point relative to the detector. The compensating step includes determining at least one complementary projection angle and coordinates of at least one complementary point based on a source projection angle and the coordinates of the selected point relative to the detector, and estimating the projection data value at the selected point based on the acquired projection data, the at least one complementary projection angle, and the coordinates of the at least one complementary point.

Subtle Dynamic Helical Scan For Uniform Z-Resolution And Noise

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US Patent:
7418075, Aug 26, 2008
Filed:
Jan 13, 2006
Appl. No.:
11/331172
Inventors:
Katsuyuki Taguchi - Cockeysville MD, US
Assignee:
Kabushiki Kaisha Toshiba - Tokyo
Toshiba Medical Systems Corporation - Otawara-shi
International Classification:
A61B 6/00
US Classification:
378 15, 378 4
Abstract:
A computed tomography apparatus, including: an X-ray helical scanning device including an X-ray generator and an X-ray detector arranged in a gantry, the helical scanning device configured to provide a continuous scan and to obtain projection data of a scanned object arranged on a platform; and control unit configured to control at least one of the X-ray helical scanning device and the platform so as to generate the continuous scan with a helical pitch that is based on a height of a detector row of the X-ray detector projected onto an iso-center of the gantry.

Image Reconstruction Method Using Hilbert Transform

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US Patent:
7424088, Sep 9, 2008
Filed:
Sep 29, 2004
Appl. No.:
10/951650
Inventors:
Aleksandr A. Zamyatin - Buffalo Grove IL, US
Katsuyuki Taguchi - Buffalo Grove IL, US
Assignee:
Kabushiki Kaisha Toshiba - Tokyo
Toshiba Medical Systems Corporation - Otawara-shi
International Classification:
A61B 6/03
US Classification:
378 4, 378 15, 378901
Abstract:
A method of determining an image data value at a point of reconstruction in a computed tomography (CT) image of a scanned object, including obtaining projection data of the scanned object, filtering the obtained projection data with a one-dimensional ramp filter to generate ramp-filtered data, and applying a backprojection operator with inverse distance weighting to the ramp-filtered data to generate the image data value at the point of reconstruction in the CT image.

Method For Helical Windmill Artifact Reduction With Noise Restoration For Helical Multislice Ct

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US Patent:
7623691, Nov 24, 2009
Filed:
Aug 6, 2004
Appl. No.:
10/912183
Inventors:
Ilmar A. Hein - Schaumburg IL, US
Katsuyuki Taguchi - Buffalo Grove IL, US
Michael D. Silver - Northbrook IL, US
Assignee:
Kabushiki Kaisha Toshiba - Tokyo
Toshiba Medical Systems Corporation - Otawara-shi
International Classification:
G06K 9/00
US Classification:
382128, 382131, 378 4, 378 21, 600407
Abstract:
A method of removing an imaging artifact in a medical image, including obtaining a first plurality of images, the first plurality of images collectively defining a first image volume; filtering the first plurality of images to create a second plurality of images, each image in the second plurality of images comprising an average of at least two images in the first plurality of images; selecting a first image from the first plurality of images; adding a lost noise image to a second image in the second plurality of images to create a noise restored image, the second image in the second plurality of images corresponding to the first image in the first plurality of images; determining a gradient image based on pixel values in the second plurality of images, the gradient image comprising a gradient value at each pixel location in the second image; and combining, based on the determined gradient image, the first image and the noise restored image to obtain a corrected image that does not contain the imaging artifact.
Katsuyuki Taguchi from Elkridge, MD, age ~59 Get Report