Patents by Inventor Masahiko Ohta
Masahiko Ohta 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: 11790511Abstract: An information processing device includes a displacement calculation means and a motion estimation means. The displacement calculation means acquires time-series images obtained by capturing images of a measurement target region of a structure supported by a supporting member. The displacement calculation means calculates a three-dimensional displacement of the measurement target region from the acquired time-series images. The motion estimation means estimates a motion of the supporting member in the structure based on the three-dimensional displacement of the measurement target region.Type: GrantFiled: April 9, 2019Date of Patent: October 17, 2023Assignee: NEC CORPORATIONInventor: Masahiko Ohta
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Patent number: 11768102Abstract: A vibration measurement apparatus 30 includes a detection unit 31 that acquires, as a pattern image from an image capturing apparatus 20 that shoots a measurement target surface of a structure 40, an image of the measurement target surface onto which pattern light is projected by an optical apparatus 10, and detects the pattern light from the pattern image, an estimation unit 32 that estimates an angle between the normal of the image capturing surface and the normal of the measurement target surface, based on the pattern light, an image conversion unit 33 that converts the shot image into an image that would be obtained were the normal of the measurement target surface coincident with the normal of the image capturing surface of the image capturing apparatus 20, using the estimated angle, and a vibration measurement unit 34 that measures the vibration of the structure 40 using the converted image.Type: GrantFiled: March 29, 2018Date of Patent: September 26, 2023Assignee: NEC CORPORATIONInventors: Gaku Nakano, Masahiko Ohta, Asuka Ishii, Kazuhito Murata
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Patent number: 11585721Abstract: A displacement component detection apparatus 10 is provided with: a displacement distribution calculation unit 11 configured to calculate, from time-series images of a measurement target region of an object 30 output from an image capturing device 20 configured to capture the images of the measurement target region, a displacement distribution in a region that corresponds to the measurement target region in the images; a movement amount calculation unit 12 configured to calculate, based on the displacement distribution and image capturing information, a movement amount in the surface direction of the measurement target region and a movement amount in the normal direction of the measurement target region; and a surface displacement calculation unit 13 configured to calculate, from the displacement distribution, a surface displacement component in the measurement target region, using the movement amount in the surface direction of the measurement target region and the movement amount in the normal direction ofType: GrantFiled: November 14, 2017Date of Patent: February 21, 2023Assignee: NEC CORPORATIONInventor: Masahiko Ohta
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Patent number: 11519780Abstract: The measurement system 100 includes: a measurement apparatus 20 that measures vibrations of an object 40; an imaging apparatus 30 that is located so as to capture an image of the measurement apparatus 20; and a correction processing apparatus 10. the correction processing apparatus 10 includes: a displacement calculation unit 11 that calculates a displacement of the measurement apparatus 20 based on time-series images of the measurement apparatus 20 output from the imaging apparatus 30; a movement amount calculation unit 12 that calculates an amount of movement of the measurement apparatus 20 relative to the imaging apparatus 30, based on the displacement; and a correction processing unit 13 that corrects vibrations of the object measured by the measurement apparatus 20, using the calculated amount of movement of the measurement apparatus 20.Type: GrantFiled: November 14, 2017Date of Patent: December 6, 2022Assignee: NEC CORPORATIONInventors: Gaku Nakano, Kazuhito Murata, Masahiko Ohta
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Patent number: 11509827Abstract: A vibration reliability calculation apparatus 10 is provided with an image acquisition unit 11 that acquires time-series images of an object that are output by an image capturing apparatus that shoots the object, and a reliability calculation unit 12 that calculates, for a vibration waveform of the object that is derived from a result of comparing one image and another image that constitute the acquired time-series images, a reliability level indicating a reliability of the vibration waveform.Type: GrantFiled: January 23, 2018Date of Patent: November 22, 2022Assignee: NEC CORPORATIONInventor: Masahiko Ohta
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Patent number: 11391621Abstract: A vibration measurement apparatus 10 is an apparatus for measuring vibrations of an object 30. The vibration measurement apparatus 10 includes: a surface-direction displacement calculation unit 11 configured to calculate, based on time-series images of a measurement target area that are output from an imaging apparatus 20, a displacement in a surface direction of the measurement target area; a normal-direction displacement calculation unit 12 configured to calculate a displacement in a normal direction of the measurement target area, based on the time-series images and the displacement in the surface direction of the measurement target area; and a vibration calculation unit 13 configured to calculate vibrations of the object 30, based on the calculated displacement in the surface direction of the measurement target area and the calculated displacement in the normal direction of the measurement target area.Type: GrantFiled: November 14, 2017Date of Patent: July 19, 2022Assignee: NEC CORPORATIONInventor: Masahiko Ohta
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Patent number: 11178333Abstract: A vibration measurement system comprises an image capturing apparatus, a distance measuring apparatus, a sensor that outputs a signal according to an inclination of the image capturing apparatus relative to the vertical direction, and a vibration measurement apparatus. The vibration measurement apparatus includes calculating an angle formed by the normal of an image capturing surface of the image capturing apparatus and the normal of the measurement target surface that the image capturing apparatus shoots, based on the signal output by the sensor, converting the image obtained that the image capturing apparatus shoots into an image that would be obtained were the normal of the measurement target surface coincident with the normal of the image capturing surface of the image capturing apparatus, using the calculated angle, and measuring vibration of the structure, using the converted image and the measured distance from the image capturing apparatus to the measurement target surface.Type: GrantFiled: March 29, 2018Date of Patent: November 16, 2021Assignee: NEC CORPORATIONInventors: Gaku Nakano, Kazuhito Murata, Asuka Ishii, Masahiko Ohta
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Publication number: 20210350520Abstract: An information processing device includes a displacement calculation means and a motion estimation means. The displacement calculation means acquires time-series images obtained by capturing images of a measurement target region of a structure supported by a supporting member. The displacement calculation means calculates a three-dimensional displacement of the measurement target region from the acquired time-series images. The motion estimation means estimates a motion of the supporting member in the structure based on the three-dimensional displacement of the measurement target region.Type: ApplicationFiled: April 9, 2019Publication date: November 11, 2021Applicant: NEC CorporationInventor: Masahiko OHTA
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Publication number: 20210169837Abstract: A medical composition for reducing the rate of new-onset diabetes caused by administration of a statin or for inhibiting an increase in blood glucose level by administration of a statin, the composition containing at least one ingredient selected from the group consisting of icosapentaenoic acid and pharmaceutically acceptable salts or esters thereof as an inactive ingredient.Type: ApplicationFiled: February 19, 2021Publication date: June 10, 2021Applicant: MOCHIDA PHARMACEUTICAL CO., LTD.Inventors: Masahiko OHTA, Shinichi OIKAWA, Mitsuhiro YOKOYAMA, Hideki ORIGASA, Masunori MATSUZAKI, Yuji MATSUZAWA, Yasushi SAITO
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Publication number: 20210051270Abstract: A vibration reliability calculation apparatus 10 is provided with an image acquisition unit 11 that acquires time-series images of an object that are output by an image capturing apparatus that shoots the object, and a reliability calculation unit 12 that calculates, for a vibration waveform of the object that is derived from a result of comparing one image and another image that constitute the acquired time-series images, a reliability level indicating a reliability of the vibration waveform.Type: ApplicationFiled: January 23, 2018Publication date: February 18, 2021Applicant: NEC CorporationInventor: Masahiko OHTA
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Patent number: 10922823Abstract: An image processing device 1 selects, from among images in which an object to be sensed is captured, a representation image which is a reference for processing. In a state of the representation image being selected, the image processing device carries out a comparative analysis between the representation image and the image which differs from the image which has been selected as the representation image, and thereby computes a degree of displacement between the representation image and the image. From among the images which have been assigned as reference images, the image processing device selects the reference image which will be used in a process of analyzing the movement of the object to be sensed, on the basis of the degree of displacement which has been computed.Type: GrantFiled: August 7, 2017Date of Patent: February 16, 2021Assignee: NEC CORPORATIONInventor: Masahiko Ohta
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Publication number: 20210033451Abstract: A vibration measurement apparatus 30 includes a detection unit 31 that acquires, as a pattern image from an image capturing apparatus 20 that shoots a measurement target surface of a structure 40, an image of the measurement target surface onto which pattern light is projected by an optical apparatus 10, and detects the pattern light from the pattern image, an estimation unit 32 that estimates an angle between the normal of the image capturing surface and the normal of the measurement target surface, based on the pattern light, an image conversion unit 33 that converts the shot image into an image that would be obtained were the normal of the measurement target surface coincident with the normal of the image capturing surface of the image capturing apparatus 20, using the estimated angle, and a vibration measurement unit 34 that measures the vibration of the structure 40 using the converted image.Type: ApplicationFiled: March 29, 2018Publication date: February 4, 2021Applicant: NEC CorporationInventors: Gaku NAKANO, Masahiko OHTA, Asuka ISHII, Kazuhito MURATA
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Publication number: 20210029297Abstract: A vibration measurement system comprises an image capturing apparatus, a distance measuring apparatus, a sensor that outputs a signal according to an inclination of the image capturing apparatus relative to the vertical direction, and a vibration measurement apparatus. The vibration measurement apparatus includes calculating an angle formed by the normal of an image capturing surface of the image capturing apparatus and the normal of the measurement target surface that the image capturing apparatus shoots, based on the signal output by the sensor, converting the image obtained that the image capturing apparatus shoots into an image that would be obtained were the normal of the measurement target surface coincident with the normal of the image capturing surface of the image capturing apparatus, using the calculated angle, and measuring vibration of the structure, using the converted image and the measured distance from the image capturing apparatus to the measurement target surface.Type: ApplicationFiled: March 29, 2018Publication date: January 28, 2021Applicant: NEC CorporationInventors: Gaku NAKANO, Kazuhito MURATA, Asuka ISHII, Masahiko OHTA
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Publication number: 20200393289Abstract: A measurement system 100 includes: a measurement apparatus 20 that measures vibrations of an object 40; an imaging apparatus 30 that is fixed to the measurement apparatus 20 so as to be able to capture an image of a preset reference face 50; and a correction processing apparatus 10. The correction processing apparatus 10 includes: a displacement calculation unit 11 that calculates a displacement of the reference face 50 based on time-series images of the reference face 50; a movement amount calculation unit 12 that calculates an amount of movement of the measurement apparatus 30 relative to the reference face 50, based on the displacement and preset imaging information regarding the imaging apparatus 30; and a correction processing unit 13 that corrects vibrations measured by the measurement apparatus 20, so as to be vibrations relative to the reference face 50, using the calculated amount of movement.Type: ApplicationFiled: November 14, 2017Publication date: December 17, 2020Applicant: NEC CorporationInventors: Masahiko OHTA, Gaku NAKANO, Kazuhito MURATA
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Publication number: 20200348166Abstract: A vibration measurement apparatus 10 is an apparatus for measuring vibrations of an object 30. The vibration measurement apparatus 10 includes: a surface-direction displacement calculation unit 11 configured to calculate, based on time-series images of a measurement target area that are output from an imaging apparatus 20, a displacement in a surface direction of the measurement target area; a normal-direction displacement calculation unit 12 configured to calculate a displacement in a normal direction of the measurement target area, based on the time-series images and the displacement in the surface direction of the measurement target area; and a vibration calculation unit 13 configured to calculate vibrations of the object 30, based on the calculated displacement in the surface direction of the measurement target area and the calculated displacement in the normal direction of the measurement target area.Type: ApplicationFiled: November 14, 2017Publication date: November 5, 2020Applicant: NEC CorporationInventor: Masahiko OHTA
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Publication number: 20200348168Abstract: The measurement system 100 includes: a measurement apparatus 20 that measures vibrations of an object 40; an imaging apparatus 30 that is located so as to capture an image of the measurement apparatus 20; and a correction processing apparatus 10. the correction processing apparatus 10 includes: a displacement calculation unit 11 that calculates a displacement of the measurement apparatus 20 based on time-series images of the measurement apparatus 20 output from the imaging apparatus 30; a movement amount calculation unit 12 that calculates an amount of movement of the measurement apparatus 20 relative to the imaging apparatus 30, based on the displacement; and a correction processing unit 13 that corrects vibrations of the object measured by the measurement apparatus 20, using the calculated amount of movement of the measurement apparatus 20.Type: ApplicationFiled: November 14, 2017Publication date: November 5, 2020Applicant: NEC CorporationInventors: Gaku NAKANO, Kazuhito MURATA, Masahiko OHTA
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Publication number: 20200292411Abstract: A displacement component detection apparatus 10 is provided with: a displacement distribution calculation unit 11 configured to calculate, from time-series images of a measurement target region of an object 30 output from an image capturing device 20 configured to capture the images of the measurement target region, a displacement distribution in a region that corresponds to the measurement target region in the images; a movement amount calculation unit 12 configured to calculate, based on the displacement distribution and image capturing information, a movement amount in the surface direction of the measurement target region and a movement amount in the normal direction of the measurement target region; and a surface displacement calculation unit 13 configured to calculate, from the displacement distribution, a surface displacement component in the measurement target region, using the movement amount in the surface direction of the measurement target region and the movement amount in the normal direction ofType: ApplicationFiled: November 14, 2017Publication date: September 17, 2020Applicant: NEC CorporationInventor: Masahiko OHTA
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Publication number: 20190358186Abstract: A medical composition for reducing the rate of new-onset diabetes caused by administration of a statin or for inhibiting an increase in blood glucose level by administration of a statin, the composition containing at least one ingredient selected from the group consisting of icosapentaenoic acid and pharmaceutically acceptable salts or esters thereof as an inactive ingredient.Type: ApplicationFiled: August 13, 2019Publication date: November 28, 2019Applicant: MOCHIDA PHARMACEUTICAL CO., LTD.Inventors: Masahiko OHTA, Shinichi OIKAWA, Mitsuhiro YOKOYAMA, Hideki ORIGASA, Masunori MATSUZAKI, Yuji MATSUZAWA, Yasushi SAITO
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Publication number: 20190220984Abstract: An image processing device 1 selects, from among images in which an object to be sensed is captured, a representation image which is a reference for processing. In a state of the representation image being selected, the image processing device carries out a comparative analysis between the representation image and the image which differs from the image which has been selected as the representation image, and thereby computes a degree of displacement between the representation image and the image. From among the images which have been assigned as reference images, the image processing device selects the reference image which will be used in a process of analyzing the movement of the object to be sensed, on the basis of the degree of displacement which has been computed.Type: ApplicationFiled: August 7, 2017Publication date: July 18, 2019Applicant: NEC CorporationInventor: Masahiko OHTA
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Patent number: 10197502Abstract: For detecting a crack formed on a structure surface without erroneously, an information processing device that detects a crack on a structure, includes a change detection unit that detects a change in positions of at least two measurement points on the structure; and a crack detection unit that detects a crack based on the change in the positions of the measurement points detected by the change detection unit.Type: GrantFiled: February 19, 2015Date of Patent: February 5, 2019Assignee: NEC CorporationInventors: Masahiko Ohta, Jun Takada, Hiroshi Imai, Atsushi Hatabu, Gaku Nakano, Zhen Wang, Yuzo Senda