Patents by Inventor Yuichiro Watanabe

Yuichiro Watanabe 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).

  • Patent number: 10762634
    Abstract: According to one embodiment, an image processing device includes processing circuitry. The processing circuitry sequentially acquires image data of time-sequential DSA images of an object, and acquires a parameter value for each pixel based on temporal change of a pixel value of the each pixel corresponding to the same region of the object in the sequentially acquired image data of time-sequential DSA images. Further, the processing circuitry sequentially generates image data of parameter images in such a manner that identification information according to the parameter value is assigned to the each pixel corresponding to the same region of the object, each time image data of a DSA image of the latest time phase being acquired.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: September 1, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Ryoichi Nagae, Yasuto Hayatsu, Yoshiaki Iijima, Naoki Uchida, Yoshinori Shimizu, Yuichiro Watanabe, Takuya Sakaguchi
  • Patent number: 10736598
    Abstract: An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry extracts a fixed object included in chronologically collected X-ray images and having a substantially fixed position. The processing circuitry detects a target object included in each of the X-ray images, on the basis of extraction results of the fixed object. The processing circuitry generates a plurality of corrected images by a correction process to substantially match, with a reference position, the detected position of the target object in an X-ray image other than a reference X-ray image, the reference position being the detected position of the target object in the reference X-ray image.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: August 11, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Ryoichi Nagae, Masahiro Ozawa, Yuichiro Watanabe
  • Patent number: 10684691
    Abstract: According to one embodiment, a gesture detection supporting system for an X-ray diagnosis includes memory circuitry, a sensor, processing circuitry and an attaching instrument. The memory circuitry stores an operation content of an X-ray diagnostic apparatus. The operation content is related to a gesture by a user. The sensor senses a gesture. The processing circuitry detects the gesture, based on an output from the sensor; acquire the operation content of the X-ray diagnostic apparatus, from the memory circuitry, based on a detection result of the gesture; and output operation information to the X-ray diagnostic apparatus, based on the operation content. The attaching instrument attaches the sensor to a ceiling of an examination room, an arm for driving an X-ray tube and an X-ray detector, an intravenous drip stand, an injector of a contrast agent, an X-ray protective board and/or a display for displaying an X-ray image.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: June 16, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Yoshiyasu Hayashi, Yuichiro Watanabe, Jun Sakakibara, Ko Fuchigami, Yusuke Kanno, Masaki Akiyama
  • Patent number: 10506997
    Abstract: An X-ray diagnostic apparatus includes a display, a holding device, bed device, a gesture detecting device and a processing circuitry. The holding device includes an X-ray irradiator, an X-ray detector, and a supporter that supports the X-ray irradiator and the X-ray detector. The bed device is available to place an object on. The gesture detecting device recognizes a gesture of a person. The processing circuitry identifies a state of the X-ray diagnostic apparatus based on at least one of the display, the X-ray irradiator, the X-ray detector, the holding device and the bed device, determines an operation detail based on a combination of the identified state and the recognized gesture, and operates at least one of the display, the holding device, the bed device, a speaker and a room light according to the determined operation detail.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: December 17, 2019
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Ko Fuchigami, Jun Sakakibara, Yuichiro Watanabe, Yusuke Kanno
  • Patent number: 10485500
    Abstract: An X-ray diagnostic apparatus of an embodiment includes processing circuitry. The processing circuitry acquires two medical images, a moving distance of a region of interest between the medical images corresponding to a distance derived from a parallax angle. The processing circuitry causes a display to display a stereoscopic image based on the medical images.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: November 26, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Ryoichi Nagae, Yasuto Hayatsu, Yoshiaki Iijima, Takuya Sakaguchi, Yuichiro Watanabe
  • Patent number: 10395386
    Abstract: An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry detects the position of an object included in each of sequentially generated X-ray images. The processing circuitry generate corrected images by a correction process to substantially match, with a reference position, the detected position of the object in a X-ray image generated after a reference X-ray image, the reference position being the detected position in the reference X-ray image. The processing circuitry determines an addition condition of each region of a sequentially generated corrected image. The processing circuitry causes a display to display an added image to which a corrected image is added in accordance with the determined addition condition.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: August 27, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Yuichiro Watanabe, Takuya Sakaguchi
  • Patent number: 10307125
    Abstract: According to one embodiment, an image processing apparatus includes processing circuitry. The processing circuitry obtains a parameter value representing temporal information on blood flow for each pixel of multiple image data items, and generates a parameter image by determining a pixel value of each pixel according to the parameter value representing the temporal information on blood flow. The processing circuitry further generates a composite image of an X-ray fluoroscopic image of an object obtained in real time and a road map image using at least a part of the parameter image, and causes a display to display the composite image.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: June 4, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Ryoichi Nagae, Yasuto Hayatsu, Yoshiaki Iijima, Naoki Uchida, Yuichiro Watanabe, Takuya Sakaguchi
  • Patent number: 10278667
    Abstract: An X-ray diagnostic apparatus of an embodiment includes an image generator, a detection unit, and an irradiation control unit. The image generator successively generates X-ray images based on X-rays emitted from an X-ray tube and transmitted through a subject. The detection unit detects a position of a predetermined target included in the successively generated X-ray images. The irradiation control unit identifies, based on the detected position of the predetermined target, a region in which the predetermined target can be visualized in the X-ray images, and performs control to reduce an X-ray irradiation dose to a region other than the identified region.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: May 7, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Yoshiaki Iijima, Ryoichi Nagae, Yasuto Hayatsu, Kunio Shiraishi, Yoshinori Shimizu, Yuichiro Watanabe
  • Publication number: 20180279986
    Abstract: An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry extracts a fixed object included in chronologically collected X-ray images and having a substantially fixed position. The processing circuitry detects a target object included in each of the X-ray images, on the basis of extraction results of the fixed object. The processing circuitry generates a plurality of corrected images by a correction process to substantially match, with a reference position, the detected position of the target object in an X-ray image other than a reference X-ray image, the reference position being the detected position of the target object in the reference X-ray image.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 4, 2018
    Applicant: Canon Medical Systems Corporation
    Inventors: Ryoichi Nagae, Masahiro Ozawa, Yuichiro Watanabe
  • Patent number: 10022096
    Abstract: According to one embodiment, a medical image processing apparatus includes processing circuitry. The processing circuitry obtains time changes in intensity of image signals corresponding to a contrast agent or a blood flow based on at least one of time series contrast image data, time series non-contrast image data, and time series subtraction image data between the contrast image data and the non-contrast image data, generate color image data, having color pixel values based on the time changes in the image signals, according to a color scale, and display frames of the color image data sequentially on a display. The processing circuitry performs a loop playing of the frames of the color image data by sequentially shifting the color scale in a direction of a color phase change, at pixels of the color image data, until an instruction for stopping the loop playing is input from an input circuit.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: July 17, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Satoru Ohishi, Ryoichi Nagae, Yuichiro Watanabe
  • Patent number: 10022103
    Abstract: An X-ray diagnostic apparatus according to an embodiment includes an X-ray generator, processing circuitry, and a display unit. The X-ray generator radiates an X-ray. The processing circuitry obtains an exposure dose of a subject due to the X-ray radiated from the X-ray generator and generates an image in which a dose distribution based on the exposure dose is superimposed on a three-dimensional model representing the subject. The display unit displays the image. The processing circuitry generates an image in which the dose distribution on a body surface on a rear side when observed in a first view direction, serving as a direction in which the three-dimensional model is displayed, is visible.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: July 17, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Yuichiro Watanabe, Naoki Uchida, Ryoichi Nagae
  • Patent number: 10016175
    Abstract: An X-ray diagnostic apparatus in embodiments includes a calculating module, a generator, and a changing module. The calculating module calculates feature quantity concerning a flow of a contrast material for each pixel in a predetermined section based on temporal transition in signal intensity of the contrast material in a predetermined section of a plurality of X-ray images radiographed with time by using the contrast material. The generator generates a first color image in which color information corresponding to the feature quantity concerning the flow of the contrast material in a first section as the predetermined section is reflected in each pixel. The changing module changes the predetermined section to a second section that is within the first section.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: July 10, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Takuya Sakaguchi, Hisato Takemoto, Yuichiro Watanabe, Ryuji Zaiki, Ryoichi Nagae
  • Patent number: 9931091
    Abstract: According to one embodiment, a dose distribution display apparatus includes storage circuitry, processing circuitry, and display circuitry. The storage circuitry stores position information of a support frame which supports an X-ray tube, and X-ray information concerning X-rays generated by the X-ray tube. The processing circuitry edits at least one of the X-ray information and the position information in accordance with an operator instruction, and generates a plurality of simulated dose distributions in time series based on the X-ray information and the position information, at least one of which has been edited, The display circuitry sequentially superimposes and displays the simulated dose distributions on an object model.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: April 3, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Yuichiro Watanabe, Takuya Sakaguchi, Yoshinori Shimizu
  • Patent number: 9833212
    Abstract: According to one embodiment, an image processing device includes processing circuitry. The processing circuitry acquires a plurality of first image data indicating a plurality of time-sequential bloodstream images obtained after administering contrast agent to an object, and sets a target region on second image data. The second image data are generated based on the plurality of the first image data so as to indicate information on temporal change of pixel values of each pixel. Further, the processing circuitry selects a reproduction section by selecting at least reproduction-start image data and reproduction-end image data from the plurality of first image data based on bloodstream information of the target region.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: December 5, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Ryoichi Nagae, Satoru Ohishi, Yuichiro Watanabe
  • Patent number: 9833210
    Abstract: According to one embodiment, a medical image diagnostic apparatus includes an X-ray tube, X-ray detector, image generation circuitry, display, and correction circuitry. The X-ray tube generates X-rays to an object. The X-ray detector detects the X-rays. The image generation circuitry generate an X-ray image based on the detected X-rays. The display displays an incident dose of the X-rays on the object, on an object image indicating the object. The correction circuitry correct a relative positional relationship between the object image and a display area of the incident dose on the object image based on the X-ray image.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: December 5, 2017
    Assignees: Toshiba Medical Systems Corporation, The Research Foundation for the State University of New York
    Inventors: Takuya Sakaguchi, Yuichiro Watanabe, Hisato Takemoto, Daniel Bednarek, Vijay Rana
  • Publication number: 20170316579
    Abstract: An image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry detects the position of an object included in each of sequentially generated X-ray images. The processing circuitry generate corrected images by a correction process to substantially match, with a reference position, the detected position of the object in a X-ray image generated after a reference X-ray image, the reference position being the detected position in the reference X-ray image. The processing circuitry determines an addition condition of each region of a sequentially generated corrected image. The processing circuitry causes a display to display an added image to which a corrected image is added in accordance with the determined addition condition.
    Type: Application
    Filed: April 27, 2017
    Publication date: November 2, 2017
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Yuichiro WATANABE, Takuya SAKAGUCHI
  • Patent number: 9801602
    Abstract: In an X-ray diagnostic apparatus of one embodiment, an image data generator sequentially generates X-ray images based on X-rays transmitted through a subject. An image processor executes: first processing where, in response to an instruction to start correction processing, a position of a target contained in a predetermined X-ray image is obtained as a reference position; and second processing where corrected images in which positions of the target are set at the reference position are sequentially generated from newly generated X-ray images. An image data storage unit stores therein information on a reference position with respect to each set of conditions of manipulation on the subject. Upon receiving the instruction to start correction processing, the image processor executes the second processing by using information on the reference position stored in the image data storage unit, in accordance with a set of the conditions of manipulation on the subject.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: October 31, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Ryoichi Nagae, Yasuto Hayatsu, Yoshiaki Iijima, Kunio Shiraishi, Yoshinori Shimizu, Yuichiro Watanabe
  • Publication number: 20170309039
    Abstract: An image processing apparatus includes a processing circuitry configured: to generate an enhanced image in which an object is enhanced from each of sequentially-generated X-ray images; to detect the position of the object included in each of the generated enhanced images; to determine, while using the position of the object detected from a specific one of the enhanced images as a reference position, processing details of a correcting process performed to arrange the detected position of the object to match the reference position, with respect to each of the enhanced images generated after the specific enhanced image; to sequentially generate corrected images by performing the correcting processes according to the processing details determined for each of the enhanced images, on the X-ray images from which the enhanced images were generated; and to cause a display to display the sequentially-generated corrected images as a moving picture.
    Type: Application
    Filed: April 26, 2017
    Publication date: October 26, 2017
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Yuichiro WATANABE, Takuya SAKAGUCHI
  • Publication number: 20170290556
    Abstract: An X-ray diagnostic apparatus of an embodiment includes processing circuitry. The processing circuitry acquires two medical images, a moving distance of a region of interest between the medical images corresponding to a distance derived from a parallax angle. The processing circuitry causes a display to display a stereoscopic image based on the medical images.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 12, 2017
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Ryoichi Nagae, Yasuto Hayatsu, Yoshiaki Iijima, Takuya Sakaguchi, Yuichiro Watanabe
  • Patent number: 9681849
    Abstract: According to one embodiment, an X-ray diagnostic apparatus includes an input circuit, an X-ray tube and an X-ray detector, and processing circuitry. The input circuit converts an input operation into an electric signal and output the electric signal. The X-ray tube and the X-ray detector image X-ray images of an object. The processing circuitry detects positions of feature points of devices from the X-ray images; generates corrected images by motion correction of the X-ray images when an electric signal corresponding to an input operation for selecting a predetermined device has been input from the input circuit; and displays the corrected images as the moving image in real time. The motion correction is performed based on positions of a feature point of the selected device. At least a part of the selected device nearly stops when the X-ray images have been displayed, by the motion correction.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: June 20, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Yoshinori Shimizu, Yuichiro Watanabe, Yasuto Hayatsu, Ryoichi Nagae, Yoshiaki Iijima, Kunio Shiraishi