Patents by Inventor Taichiro Shiodera
Taichiro Shiodera 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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Publication number: 20190004134Abstract: A magnetic resonance imaging apparatus according to an embodiment includes sequence controlling circuitry and processing circuitry. The sequence controlling circuitry acquires first k-space data in units of a plurality of segments while arranging the plurality of segments to overlap one another in a read-out direction, the first k-space being divided into the plurality of segments in the read-out direction. The processing circuitry calculates a weighting coefficient on a basis of information about a gradient magnetic field related to the acquisition and generates second k-space data on a basis of the plurality of segments in the first k-space data and the weighting coefficient.Type: ApplicationFiled: June 28, 2018Publication date: January 3, 2019Applicant: Canon Medical Systems CorporationInventors: Yuko HARA, Kanako Saito, Taichiro Shiodera, Tomoyuki Takeguchi, Takashi Shigeta, Masao Yui, Hiroshi Kusahara, Yuki Takai, Yoshimori Kasai
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Publication number: 20180372827Abstract: According to one embodiment, the magnetic resonance imaging apparatus has a processing circuitry. The processing circuitry generates a conductivity map quantitatively indicating the conductivity in the subject using a susceptibility map quantitatively indicating the susceptibility in the subject.Type: ApplicationFiled: June 22, 2018Publication date: December 27, 2018Applicant: Canon Medical Systems CorporationInventor: Taichiro SHIODERA
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Publication number: 20180367803Abstract: According to an embodiment, an encoding device includes an index setting unit and an encoding unit. The index setting unit generates a common index in which reference indices of one or more reference images included in a first index and a second index are sorted in a combination so as not to include a same reference image in accordance with a predetermined scanning order. The first index representing a combination of the one or more reference images referred to by a first reference image. The second index representing a combination of the one or more reference images referred to by a second reference image. The encoding unit encodes the common index.Type: ApplicationFiled: August 27, 2018Publication date: December 20, 2018Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Akiyuki TANIZAWA, Takeshi Chujoh, Taichiro Shiodera
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Patent number: 10134130Abstract: A magnetic-resonance imaging apparatus of an embodiment includes acquiring circuitry and processing circuitry. The acquiring circuitry acquires a magnetic resonance signal that is generated from a subject. The processing circuitry creates a phase image based on the magnetic resonance signal. The processing circuitry sets a combination of a plurality of filters that are used to remove a phase variation derived from a background magnetic field according to a region in the phase image. The processing circuitry removes a phase variation derived from the background magnetic field from the phase image by using the combination of the filters.Type: GrantFiled: October 28, 2016Date of Patent: November 20, 2018Assignee: Toshiba Medical Systems CorporationInventors: Takamasa Sugiura, Taichiro Shiodera, Tomoyuki Takeguchi, Yasunori Taguchi, Naotaka Sakashita, Masao Yui
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Patent number: 10110904Abstract: According to an embodiment, an encoding device includes an index setting unit and an encoding unit. The index setting unit generates a common index in which reference indices of one or more reference images included in a first index and a second index are sorted in a combination so as not to include a same reference image in accordance with a predetermined scanning order. The first index representing a combination of the one or more reference images referred to by a first reference image. The second index representing a combination of the one or more reference images referred to by a second reference image. The encoding unit encodes the common index.Type: GrantFiled: August 17, 2017Date of Patent: October 23, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Akiyuki Tanizawa, Takeshi Chujoh, Taichiro Shiodera
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Patent number: 10102651Abstract: According to an embodiment, a device includes first and second generators, a detector, and a corrector. The first generator is configured to generate a first image based on data corresponding to photons with a first energy from among data that is obtained based on an energy of radiation that has passed through a subject. The second generator is configured to generate a second image based on data corresponding to photons with a second energy. The detector is configured to detect, in the second image, a second block having a similar pattern of pixel values to a first block included in the second image. The corrector is configured to correct pixel values of a third block in the first image corresponding to the first block based on new pixel values of the third block that are calculated by using pixel values included in a fourth block in the first image.Type: GrantFiled: March 26, 2018Date of Patent: October 16, 2018Assignee: Toshiba Medical Systems CorporationInventors: Takashi Ida, Toshiyuki Ono, Shuhei Nitta, Taichiro Shiodera, Hidenori Takeshima, Tomoyuki Takeguchi, Hiroaki Nakai
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Patent number: 10091525Abstract: According to one embodiment, an image encoding method includes selecting a motion reference block from an encoded pixel block to which an inter prediction is applied. The method includes selecting one or more available blocks from the motion reference block. The method includes selecting a selection block from the available blocks. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information specifying the selection block by referring to a code table decided according to a number of the available blocks.Type: GrantFiled: September 8, 2017Date of Patent: October 2, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro Shiodera, Saori Asaka, Akiyuki Tanizawa, Takeshi Chujoh
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Patent number: 10074197Abstract: An X-ray computed-tomography (CT) apparatus of an embodiment includes an X-ray tube, an X-ray detector, and processing circuitry. The X-ray tube is configured to generate an X-ray. The X-ray detector includes a plurality of X-ray detection elements configured to output a signal based on the X-ray entered therein. The processing circuitry is configured to derive a constraint condition by using at least one piece of projection data out of a plurality of pieces of projection data corresponding energy bins of which differ at least partially, calculate an effective length that is a total length for which the X-ray has passed through a region in which a material to be decomposed is present, and generate image data showing information about the material by using the projection data and the effective length.Type: GrantFiled: September 1, 2015Date of Patent: September 11, 2018Assignee: Toshiba Medical Systems CorporationInventors: Shuhei Nitta, Taichiro Shiodera, Tomoyuki Takeguchi, Hidenori Takeshima, Toshiyuki Ono, Takashi Ida, Hiroaki Nakai
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Patent number: 10057584Abstract: According to an embodiment, an encoding device includes an index setting unit and an encoding unit. The index setting unit generates a common index in which reference indices of one or more reference images included in a first index and a second index are sorted in a combination so as not to include a same reference image in accordance with a predetermined scanning order. The first index representing a combination of the one or more reference images referred to by a first reference image. The second index representing a combination of the one or more reference images referred to by a second reference image. The encoding unit encodes the common index.Type: GrantFiled: August 17, 2017Date of Patent: August 21, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Akiyuki Tanizawa, Takeshi Chujoh, Taichiro Shiodera
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Patent number: 10043293Abstract: An image processing device to reduce noise in a medical image includes first and second generators, a detector, and a corrector. A first image is generated based on data corresponding to photons with a first energy from among data that is obtained based on an energy of radiation that has passed through a subject and a second image is generated based on data corresponding to photons with a second energy. The detector finds, in the second image, a second block having a similar pattern of pixel values to a first block included in the second image. The corrector reduces noise by correcting pixel values of a third block in the first image corresponding to the first block based on new pixel values of the third block that are calculated by using pixel values included in a fourth block in the first image.Type: GrantFiled: June 2, 2015Date of Patent: August 7, 2018Assignee: Toshiba Medical Systems CorporationInventors: Takashi Ida, Toshiyuki Ono, Shuhei Nitta, Taichiro Shiodera, Hidenori Takeshima, Tomoyuki Takeguchi, Hiroaki Nakai
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Publication number: 20180211418Abstract: According to an embodiment, a device includes first and second generators, a detector, and a corrector. The first generator is configured to generate a first image based on data corresponding to photons with a first energy from among data that is obtained based on an energy of radiation that has passed through a subject. The second generator is configured to generate a second image based on data corresponding to photons with a second energy. The detector is configured to detect, in the second image, a second block having a similar pattern of pixel values to a first block included in the second image. The corrector is configured to correct pixel values of a third block in the first image corresponding to the first block based on new pixel values of the third block that are calculated by using pixel values included in a fourth block in the first image.Type: ApplicationFiled: March 26, 2018Publication date: July 26, 2018Applicant: Toshiba Medical Systems CorporationInventors: Takashi IDA, Toshiyuki Ono, Shuhei Nitta, Taichiro Shiodera, Hidenori Takeshima, Tomoyuki Takeguchi, Hiroaki Nakai
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Patent number: 10009623Abstract: According to one embodiment, an image encoding method includes selecting a motion reference block from an encoded pixel block to which an inter prediction is applied. The method includes selecting one or more available blocks from the motion reference block. The method includes selecting a selection block from the available blocks. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information specifying the selection block by referring to a code table decided according to a number of the available blocks.Type: GrantFiled: October 8, 2012Date of Patent: June 26, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro Shiodera, Saori Asaka, Akiyuki Tanizawa, Takeshi Chujoh
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Patent number: 9974464Abstract: An image processing apparatus according to an embodiment includes a processor and a memory. The memory stores processor-executable instructions that, when executed by the processor, cause the processor to: receive an input of information designating an observation target; extract, from each of magnetic resonance (MR) images included in an MR image group collected by applying a tagging pulse to a region where a fluid flows, a group of regions of the fluid; analyze, by an analyzing method associated with the observation target, the group of regions of the fluid extracted from each of the MR images, thereby deriving an index indicating a dynamic state of the fluid; and cause the index to be displayed on a display.Type: GrantFiled: November 10, 2015Date of Patent: May 22, 2018Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Taichiro Shiodera, Shuhei Nitta, Tomoyuki Takeguchi
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Publication number: 20180131956Abstract: A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.Type: ApplicationFiled: January 8, 2018Publication date: May 10, 2018Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro Shiodera, Akiyuki Tanizawa, Tomoo Yamakage, Takeshi Chujoh
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Patent number: 9906812Abstract: According to one embodiment, an image encoding method includes selecting a motion reference block from an encoded pixel block to which an inter prediction is applied. The method includes selecting one or more available blocks from the motion reference block. The method includes selecting a selection block from the available blocks. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information specifying the selection block by referring to a code table decided according to a number of the available blocks.Type: GrantFiled: November 14, 2016Date of Patent: February 27, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro Shiodera, Saori Asaka, Akiyuki Tanizawa, Takeshi Chujoh
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Patent number: 9900594Abstract: A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.Type: GrantFiled: September 9, 2013Date of Patent: February 20, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Taichiro Shiodera, Akiyuki Tanizawa, Tomoo Yamakage, Takeshi Chujoh
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Patent number: 9872027Abstract: According to an embodiment, an encoding device includes an index setting unit and an encoding unit. The index setting unit generates a common index in which reference indices of one or more reference images included in a first index and a second index are sorted in a combination so as not to include a same reference image in accordance with a predetermined scanning order. The first index representing a combination of the one or more reference images referred to by a first reference image. The second index representing a combination of the one or more reference images referred to by a second reference image. The encoding unit encodes the common index.Type: GrantFiled: May 9, 2017Date of Patent: January 16, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Akiyuki Tanizawa, Takeshi Chujoh, Taichiro Shiodera
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Publication number: 20170374380Abstract: According to one embodiment, an image encoding method includes selecting a motion reference block from an encoded pixel block to which an inter prediction is applied. The method includes selecting one or more available blocks from the motion reference block. The method includes selecting a selection block from the available blocks. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information specifying the selection block by referring to a code table decided according to a number of the available blocks.Type: ApplicationFiled: September 8, 2017Publication date: December 28, 2017Applicant: Kabushiki Kaisha ToshibaInventors: Taichiro SHIODERA, Saori ASAKA, Akiyuki TANIZAWA, Takeshi CHUJOH
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Publication number: 20170366822Abstract: According to one embodiment, an image encoding method includes selecting a motion reference block from an already-encoded pixel block. The method includes selecting an available block including different motion information from the motion reference block, and selecting a selection block from the available block. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information identifying the selection block by referring to a code table decided according to a number of the available block.Type: ApplicationFiled: September 7, 2017Publication date: December 21, 2017Applicant: Kabushiki Kaisha ToshibaInventors: Taichiro Shiodera, Saori Asaka, Akiyuki Tanizawa, Takeshi Chujoh
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Publication number: 20170359585Abstract: According to an embodiment, an encoding device includes an index setting unit and an encoding unit. The index setting unit generates a common index in which reference indices of one or more reference images included in a first index and a second index are sorted in a combination so as not to include a same reference image in accordance with a predetermined scanning order. The first index representing a combination of the one or more reference images referred to by a first reference image. The second index representing a combination of the one or more reference images referred to by a second reference image. The encoding unit encodes the common index.Type: ApplicationFiled: August 17, 2017Publication date: December 14, 2017Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Akiyuki Tanizawa, Takeshi Chujoh, Taichiro Shiodera