Patents by Inventor Kenzo Isogawa

Kenzo Isogawa 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).

  • Publication number: 20240185581
    Abstract: A training apparatus includes a circuitry. The circuitry inputs a bag that is a set of an instance to an identifier and outputs a probability sequence including a probability that each instance belonging to the bag corresponds to a target. The circuitry calculates a bag likelihood that is a probability that specific instances corresponding to the target are included in the bag. The circuitry outputs an expected instance quantity regarding a quantity of the specific instances included in the bag. The circuitry calculates a parameter update amount based on teaching data, the bag likelihood, and the expected instance quantity, and updates a parameter of the identifier based on the parameter update amount.
    Type: Application
    Filed: August 29, 2023
    Publication date: June 6, 2024
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kenzo ISOGAWA, Toshiyuki ONO
  • Publication number: 20240127043
    Abstract: In one embodiment, an image processing system includes a memory and processing circuitry. The memory is configured to store a predetermined program. The processing circuitry is configured, by executing the predetermined program, to perform processing on an input image by exploiting a neural network having an input layer, an output layer, and an intermediate layer provided between the input layer and the output layer, the input image being inputted to the input layer, and adjust an internal parameter based on data related to the input image, while performing the processing on the input image after training of the neural network, the internal parameter being at least one internal parameter of at least one node included in the intermediate layer, and the input parameter having been calculated by the training of the neural network.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 18, 2024
    Applicants: KABUSHIKI KAISHA TOSHIBA, CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kenzo ISOGAWA, Tomoyuki TAKEGUCHI
  • Patent number: 11886978
    Abstract: In one embodiment, an image processing system includes a memory and processing circuitry. The memory is configured to store a predetermined program. The processing circuitry is configured, by executing the predetermined program, to perform processing on an input image by exploiting a neural network having an input layer, an output layer, and an intermediate layer provided between the input layer and the output layer, the input image being inputted to the input layer, and adjust an internal parameter based on data related to the input image, while performing the processing on the input image after training of the neural network, the internal parameter being at least one internal parameter of at least one node included in the intermediate layer, and the input parameter having been calculated by the training of the neural network.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: January 30, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kenzo Isogawa, Tomoyuki Takeguchi
  • Patent number: 11747424
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes an MRI system and a processing circuitry. The MRI system includes a receiving coil to receive a magnetic resonance signal. The processing circuitry is configured to generate an image based on the magnetic resonance signal, the image including a plurality of pixels; calculate a feature value corresponding to a signal value of the pixel; correct the feature values based on a sensitivity of the receiving coil; and reduce noise in the image based on distribution of the corrected feature values.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: September 5, 2023
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kenzo Isogawa, Toshiyuki Ono, Kenichi Shimoyama, Nobuyuki Matsumoto, Shuhei Nitta, Satoshi Kawata, Toshimitsu Kaneko, Mai Murashima
  • Publication number: 20230219766
    Abstract: According to one embodiment, a detection apparatus includes a processor. The processor acquires height information at a plurality of points in a subject. The processor determines whether or not one or more steps are present at a height equal to or higher than a predetermined height from a reference in the subject based on the height information. The processor detects that the subject is in a state in which a plurality of objects are overlapped, if the number of the steps is equal to or greater than a first threshold value.
    Type: Application
    Filed: August 9, 2022
    Publication date: July 13, 2023
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Kenzo ISOGAWA, Toshiyuki ONO
  • Publication number: 20230117621
    Abstract: In one embodiment, an image processing system includes a memory and processing circuitry. The memory is configured to store a predetermined program. The processing circuitry is configured, by executing the predetermined program, to perform processing on an input image by exploiting a neural network having an input layer, an output layer, and an intermediate layer provided between the input layer and the output layer, the input image being inputted to the input layer, and adjust an internal parameter based on data related to the input image, while performing the processing on the input image after training of the neural network, the internal parameter being at least one internal parameter of at least one node included in the intermediate layer, and the input parameter having been calculated by the training of the neural network.
    Type: Application
    Filed: December 20, 2022
    Publication date: April 20, 2023
    Applicants: KABUSHIKI KAISHA TOSHIBA, CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kenzo ISOGAWA, Tomoyuki TAKEGUCHI
  • Publication number: 20230083322
    Abstract: According to one embodiment, a wall detection device includes an acquirer and processing circuitry. The acquirer acquires a point cloud, which includes a series of coordinates of a plurality of points corresponding to a first wall and a second wall that oppose each other. The processing circuitry detects a first detected wall and a second detected wall based on a model and the acquired point cloud, the model representing a first plane which corresponds to the first detected wall and indicates a surface of the first wall and a second plane which corresponds to the second detected wall and indicates a surface of the second wall, and the model representing the first plane and the second plane being parallel to each other.
    Type: Application
    Filed: February 28, 2022
    Publication date: March 16, 2023
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Kenzo ISOGAWA, Toshiyuki ONO
  • Patent number: 11574170
    Abstract: In one embodiment, an image processing system includes a memory and processing circuitry. The memory is configured to store a predetermined program. The processing circuitry is configured, by executing the predetermined program, to perform processing on an input image by exploiting a neural network having an input layer, an output layer, and an intermediate layer provided between the input layer and the output layer, the input image being inputted to the input layer, and adjust an internal parameter based on data related to the input image, while performing the processing on the input image after training of the neural network, the internal parameter being at least one internal parameter of at least one node included in the intermediate layer, and the input parameter having been calculated by the training of the neural network.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: February 7, 2023
    Assignees: KABUSHIKI KAISHA TOSHIBA, CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kenzo Isogawa, Tomoyuki Takeguchi
  • Publication number: 20220254021
    Abstract: According to one embodiment, a medical image diagnostic apparatus includes processing circuitry. The processing circuitry inputs a noise correlation map and a medical image or an intermediate image to a learned model that is functioned to generate a denoise image, in which noise of the medical image or noise of the intermediate image is reduced, based on the medical image generated based on data collected with respect to a subject or the intermediate image at a front stage for generating the medical image and the noise correlation map correlated with the noise included in the medical image or the intermediate image, and generates the denoise image, in which the noise of the medical image or the noise of the intermediate image is reduced.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 11, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Takashi IDA, Kenzo ISOGAWA
  • Publication number: 20220187402
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes an MRI system and a processing circuitry. The MRI system includes a receiving coil to receive a magnetic resonance signal. The processing circuitry is configured to generate an image based on the magnetic resonance signal, the image including a plurality of pixels; calculate a feature value corresponding to a signal value of the pixel; correct the feature values based on a sensitivity of the receiving coil; and reduce noise in the image based on distribution of the corrected feature values.
    Type: Application
    Filed: March 2, 2022
    Publication date: June 16, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kenzo ISOGAWA, Toshiyuki ONO, Kenichi SHIMOYAMA, Nobuyuki MATSUMOTO, Shuhei NITTA, Satoshi KAWATA, Toshimitsu KANEKO, Mai MURASHIMA
  • Patent number: 11348226
    Abstract: According to one embodiment, a medical image diagnostic apparatus includes processing circuitry. The processing circuitry inputs a noise correlation map and a medical image or an intermediate image to a learned model that is functioned to generate a denoise image, in which noise of the medical image or noise of the intermediate image is reduced, based on the medical image generated based on data collected with respect to a subject or the intermediate image at a front stage for generating the medical image and the noise correlation map correlated with the noise included in the medical image or the intermediate image, and generates the denoise image, in which the noise of the medical image or the noise of the intermediate image is reduced.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: May 31, 2022
    Assignee: Canon Medical Systems Corporation
    Inventors: Takashi Ida, Kenzo Isogawa
  • Patent number: 11315220
    Abstract: According to one embodiment, a distance measuring apparatus includes a processing circuit and a memory. The processing circuit generates a distance image by measuring distances to an obstacle by using the time until the emitted light is reflected from the obstacle and returned as reflected light. The processing circuit generates an intensity image by measuring the intensity of the reflected light or the intensity of the environmental light. The memory stores a learned model for generating a denoise image, in which noise of the distance image is reduced, based on the distance image and the intensity image.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: April 26, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Ida, Kenzo Isogawa, Atsushi Matsumura
  • Patent number: 11300646
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes an MRI system and a processing circuitry. The MRI system includes a receiving coil to receive a magnetic resonance signal. The processing circuitry is configured to generate an image based on the magnetic resonance signal, the image including a plurality of pixels; calculate a feature value corresponding to a signal value of the pixel; correct the feature values based on a sensitivity of the receiving coil; and reduce noise in the image based on distribution of the corrected feature values.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: April 12, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kenzo Isogawa, Toshiyuki Ono, Kenichi Shimoyama, Nobuyuki Matsumoto, Shuhei Nitta, Satoshi Kawata, Toshimitsu Kaneko, Mai Murashima
  • Patent number: 11262428
    Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry is configured to apply a filter to each of a first real-part image and a first imaginary-part image of a first complex image generated based on acquired magnetic resonance data and thereby generate a second complex image that includes a second real-part image and a second imaginary-part image. The processing circuitry is configured to generate a phase image denoised by the filter, the denoised phase image generated based on the second real-part image and the second imaginary-part image. The processing circuitry is configured to generate an intensity image related to an absolute value of the first complex image based on pixel values of the denoised phase image, the first real-part image, and the first imaginary-part image.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: March 1, 2022
    Assignee: Canon Medical Systems Corporation
    Inventor: Kenzo Isogawa
  • Publication number: 20200209333
    Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry is configured to apply a filter to each of a first real-part image and a first imaginary-part image of a first complex image generated based on acquired magnetic resonance data and thereby generate a second complex image that includes a second real-part image and a second imaginary-part image. The processing circuitry is configured to generate a phase image denoised by the filter, the denoised phase image generated based on the second real-part image and the second imaginary-part image. The processing circuitry is configured to generate an intensity image related to an absolute value of the first complex image based on pixel values of the denoised phase image, the first real-part image, and the first imaginary-part image.
    Type: Application
    Filed: December 19, 2019
    Publication date: July 2, 2020
    Applicant: Canon Medical Systems Corporation
    Inventor: Kenzo ISOGAWA
  • Publication number: 20200088856
    Abstract: According to one embodiment, a signal processing apparatus includes a memory and a processing circuit. The memory stores a learned model for generating restoration data by restoring deterioration of a signal based on data of the signal and data related to a position of a sample of the signal. The processing circuit inputs data of the signal and data related to the position to the learned model. The processing circuit generates the restoration data by using the learned model.
    Type: Application
    Filed: February 28, 2019
    Publication date: March 19, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Ida, Kenzo Isogawa, Atsushi Matsumura
  • Publication number: 20190378270
    Abstract: According to one embodiment, a medical image diagnostic apparatus includes processing circuitry. The processing circuitry inputs a noise correlation map and a medical image or an intermediate image to a learned model that is functioned to generate a denoise image, in which noise of the medical image or noise of the intermediate image is reduced, based on the medical image generated based on data collected with respect to a subject or the intermediate image at a front stage for generating the medical image and the noise correlation map correlated with the noise included in the medical image or the intermediate image, and generates the denoise image, in which the noise of the medical image or the noise of the intermediate image is reduced.
    Type: Application
    Filed: June 4, 2019
    Publication date: December 12, 2019
    Applicant: Canon Medical Systems Corporation
    Inventors: Takashi IDA, Kenzo ISOGAWA
  • Publication number: 20190378248
    Abstract: According to one embodiment, a distance measuring apparatus includes a processing circuit and a memory. The processing circuit generates a distance image by measuring distances to an obstacle by using the time until the emitted light is reflected from the obstacle and returned as reflected light. The processing circuit generates an intensity image by measuring the intensity of the reflected light or the intensity of the environmental light. The memory stores a learned model for generating a denoise image, in which noise of the distance image is reduced, based on the distance image and the intensity image.
    Type: Application
    Filed: February 26, 2019
    Publication date: December 12, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi IDA, Kenzo ISOGAWA, Atsushi MATSUMURA
  • Publication number: 20180349759
    Abstract: In one embodiment, an image processing system includes a memory and processing circuitry. The memory is configured to store a predetermined program. The processing circuitry is configured, by executing the predetermined program, to perform processing on an input image by exploiting a neural network having an input layer, an output layer, and an intermediate layer provided between the input layer and the output layer, the input image being inputted to the input layer, and adjust an internal parameter based on data related to the input image, while performing the processing on the input image after training of the neural network, the internal parameter being at least one internal parameter of at least one node included in the intermediate layer, and the input parameter having been calculated by the training of the neural network.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 6, 2018
    Applicants: KABUSHIKI KAISHA TOSHIBA, CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kenzo Isogawa, Tomoyuki Takeguchi
  • Publication number: 20160131730
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes an MRI system and a processing circuitry. The MRI system includes a receiving coil to receive a magnetic resonance signal. The processing circuitry is configured to generate an image based on the magnetic resonance signal, the image including a plurality of pixels; calculate a feature value corresponding to a signal value of the pixel; correct the feature values based on a sensitivity of the receiving coil; and reduce noise in the image based on distribution of the corrected feature values.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 12, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Kenzo ISOGAWA, Toshiyuki ONO, Kenichi SHIMOYAMA, Nobuyuki MATSUMOTO, Shuhei NITTA, Satoshi KAWATA, Toshimitsu KANEKO, Mai MURASHIMA