Patents by Inventor Keita Dan

Keita Dan 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: 11741632
    Abstract: A system includes an information processing device. The information processing device is configured to acquire an image group from each of a plurality of cameras. The image group includes a plurality of images of an object that moves relative to each of the plurality of cameras. The plurality of images are captured by a corresponding camera at predetermined intervals and having different image capture times. The information processing device is configured to calculate an amount of movement of the object relative to each of the plurality of cameras, based on the image group acquired from each of the plurality of cameras. The information processing device is configured to detect a lag between image capture timings of the plurality of cameras, by using the amount of movement of the object relative to each of the plurality of cameras.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: August 29, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroto Mizohana, Keita Dan, Kenkichi Yamamoto, Kei Watanabe
  • Publication number: 20230179732
    Abstract: An image capturing apparatus including a lens and a processing unit, wherein the lens includes a first region through which a first light ray passes and a second region through which a second light ray passes, wherein the first region and the second region are arranged in a predetermined direction, and wherein the processing unit sets a component of the predetermined direction as a degree of freedom in a first relative positional relationship between a predetermined position in the first region and a predetermined position in the second region is employed.
    Type: Application
    Filed: February 7, 2023
    Publication date: June 8, 2023
    Inventor: Keita Dan
  • Patent number: 11637948
    Abstract: An image capturing apparatus including a lens and a processing unit, wherein the lens includes a first region through which a first light ray passes and a second region through which a second light ray passes, wherein the first region and the second region are arranged in a predetermined direction, and wherein the processing unit sets a component of the predetermined direction as a degree of freedom in a first relative positional relationship between a predetermined position in the first region and a predetermined position in the second region is employed.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: April 25, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Keita Dan
  • Patent number: 11443410
    Abstract: An image processing method includes a matching cost calculating process of calculating matching costs in a unit of sub-pixels having higher resolution than first and second images by using an image of a reference area contained in the first image in which a target object is imaged and images of a plurality of comparison areas contained in the second image in which the target object is imaged, and a synthesized cost calculating process of calculating synthesized costs related to the reference area based on comparison results of values related to the plurality of matching costs calculated in the matching cost calculating process.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: September 13, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroto Mizohana, Keita Dan
  • Patent number: 11254008
    Abstract: A method of controlling a robot system includes measuring, capturing, and calculating. A measuring device attached to the robot measures a position and an orientation of a marker with respect to the robot. An imaging device captures an image of the marker and a workpiece. A control device calculates a relative positional relationship between the workpiece and the robot in accordance with a result obtained by the measuring device and with the image captured by the imaging device.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: February 22, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Keita Dan
  • Publication number: 20220028117
    Abstract: A system includes an information processing device. The information processing device is configured to acquire an image group from each of a plurality of cameras. The image group includes a plurality of images of an object that moves relative to each of the plurality of cameras. The plurality of images are captured by a corresponding camera at predetermined intervals and having different image capture times. The information processing device is configured to calculate an amount of movement of the object relative to each of the plurality of cameras, based on the image group acquired from each of the plurality of cameras. The information processing device is configured to detect a lag between image capture timings of the plurality of cameras, by using the amount of movement of the object relative to each of the plurality of cameras.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 27, 2022
    Inventors: Hiroto Mizohana, Keita Dan, Kenkichi Yamamoto, Kei Watanabe
  • Publication number: 20210400252
    Abstract: An imaging system includes a plurality of cameras, and a controller, wherein the controller detects synchronous deviation of image capturing timing of the plurality of cameras by using images respectively captured by the plurality of cameras.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 23, 2021
    Inventors: Keita Dan, Hiroto Mizohana, Kenkichi Yamamoto, Kei Watanabe
  • Patent number: 11059169
    Abstract: A robot system includes a robot, a vision sensor, a controller, and an input unit. The vision sensor configured to measure a feature point and obtain a measured coordinate value. The controller configured to control the robot. The input unit configured to receive an input from a user toward the controller. The controller obtains, via the input unit, setting information data on a determination point which is different from the feature point. The robot system uses a coordinate value of the determination point and the measured coordinate value, and determines whether the robot is taking a target position and orientation.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: July 13, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hideaki Suzuki, Keita Dan, Naoki Tsukabe
  • Patent number: 11014233
    Abstract: Indicators are set on a marker positioned on a working stage in conformity with a target teaching point. A stereo camera images the indicator in a state of being positioned on a robot hand, and measures the three-dimensional position of the marker. In robot arm controlling, the robot hand is positioned at the correction teaching point for off-line that is offset from an off-line teaching point in the depth of field direction of the stereo camera. In imaging, while the robot hand is positioned at the correction teaching point for off-line, the indicators are imaged by the stereo camera. In correcting, based on an imaging result of the indicator, the on-line teaching point is corrected toward the target teaching point to obtain the on-line teaching point.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: May 25, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Keita Dan, Hideaki Suzuki
  • Publication number: 20210114221
    Abstract: A robot system includes a robot, a vision sensor, and a controller. The vision sensor is configured to be detachably attached to the robot. The controller is configured to measure a reference object by using the vision sensor and calibrate a relative relationship between a sensor portion of the vision sensor and an engagement portion of the vision sensor, and teach the robot by referring to the relative relationship and by using the vision sensor, after the vision sensor is attached to the robot.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Hideaki Suzuki, Keita Dan, Naoki Tsukabe
  • Publication number: 20210110513
    Abstract: An image processing method includes a matching cost calculating process of calculating matching costs in a unit of sub-pixels having higher resolution than first and second images by using an image of a reference area contained in the first image in which a target object is imaged and images of a plurality of comparison areas contained in the second image in which the target object is imaged, and a synthesized cost calculating process of calculating synthesized costs related to the reference area based on comparison results of values related to the plurality of matching costs calculated in the matching cost calculating process.
    Type: Application
    Filed: October 2, 2020
    Publication date: April 15, 2021
    Inventors: Hiroto Mizohana, Keita Dan
  • Patent number: 10906182
    Abstract: A robot system includes a robot, a vision sensor, and a controller. The vision sensor is configured to be detachably attached to the robot. The controller is configured to measure a reference object by using the vision sensor and calibrate a relative relationship between a sensor portion of the vision sensor and an engagement portion of the vision sensor, and teach the robot by referring to the relative relationship and by using the vision sensor, after the vision sensor is attached to the robot.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: February 2, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideaki Suzuki, Keita Dan, Naoki Tsukabe
  • Publication number: 20200366814
    Abstract: An image capturing apparatus including a lens and a processing unit, wherein the lens includes a first region through which a first light ray passes and a second region through which a second light ray passes, wherein the first region and the second region are arranged in a predetermined direction, and wherein the processing unit sets a component of the predetermined direction as a degree of freedom in a first relative positional relationship between a predetermined position in the first region and a predetermined position in the second region is employed.
    Type: Application
    Filed: May 11, 2020
    Publication date: November 19, 2020
    Inventor: Keita Dan
  • Publication number: 20200023521
    Abstract: A method of controlling a robot system includes measuring, capturing, and calculating. A measuring device attached to the robot measures a position and an orientation of a marker with respect to the robot. An imaging device captures an image of the marker and a workpiece. A control device calculates a relative positional relationship between the workpiece and the robot in accordance with a result obtained by the measuring device and with the image captured by the imaging device.
    Type: Application
    Filed: July 2, 2019
    Publication date: January 23, 2020
    Inventor: Keita Dan
  • Publication number: 20180297198
    Abstract: Indicators are set on a marker positioned on a working stage in conformity with a target teaching point. A stereo camera images the indicator in a state of being positioned on a robot hand, and measures the three-dimensional position of the marker. In robot arm controlling, the robot hand is positioned at the correction teaching point for off-line that is offset from an off-line teaching point in the depth of field direction of the stereo camera. In imaging, while the robot hand is positioned at the correction teaching point for off-line, the indicators are imaged by the stereo camera. In correcting, based on an imaging result of the indicator, the on-line teaching point is corrected toward the target teaching point to obtain the on-line teaching point.
    Type: Application
    Filed: September 23, 2016
    Publication date: October 18, 2018
    Inventors: Keita DAN, Hideaki SUZUKI
  • Publication number: 20180222049
    Abstract: A robot system includes a robot, a vision sensor, a controller, and an input unit. The vision sensor configured to measure a feature point and obtain a measured coordinate value. The controller configured to control the robot. The input unit configured to receive an input from a user toward the controller. The controller obtains, via the input unit, setting information data on a determination point which is different from the feature point. The robot system uses a coordinate value of the determination point and the measured coordinate value, and determines whether the robot is taking a target position and orientation.
    Type: Application
    Filed: January 30, 2018
    Publication date: August 9, 2018
    Inventors: HIDEAKI SUZUKI, Keita Dan, Naoki Tsukabe
  • Publication number: 20180222056
    Abstract: A robot system includes a robot, a vision sensor, and a controller. The vision sensor is configured to be detachably attached to the robot. The controller is configured to measure a reference object by using the vision sensor and calibrate a relative relationship between a sensor portion of the vision sensor and an engagement portion of the vision sensor, and teach the robot by referring to the relative relationship and by using the vision sensor, after the vision sensor is attached to the robot.
    Type: Application
    Filed: February 6, 2018
    Publication date: August 9, 2018
    Inventors: Hideaki Suzuki, Keita Dan, Naoki Tsukabe
  • Patent number: 9278454
    Abstract: A production apparatus ensures wireless communication without interference. An antenna portion 310 at a robotic arm includes a transmitting antenna portion 311 having a plurality of transmitting antennas 321 to 328 and a receiving antenna portion 312 having a plurality of receiving antennas 331 to 338. A transmitting side switcher circuit 361 changes over a transmitting antenna to be connected to a transmitter 351 among the plurality of transmitting antennas 321 to 328 in conjunction with an attitude information of the robotic arm, and changes an effective direction of a directional characteristic of the transmitting antenna portion 311. A receiving side switcher circuit 362 changes over a receiving antenna to be connected to a receiver 352 among the plurality of receiving antennas 331 to 338 in conjunction with the attitude information of the robotic arm and changes the effective direction of the directional characteristic of the receiving antenna portion 312.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: March 8, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toshihiko Mimura, Keita Dan, Tadashi Eguchi, Tomoyuki Takada
  • Publication number: 20150012137
    Abstract: A production apparatus ensures wireless communication without interference. An antenna portion 310 at a robotic arm includes a transmitting antenna portion 311 having a plurality of transmitting antennas 321 to 328 and a receiving antenna portion 312 having a plurality of receiving antennas 331 to 338. A transmitting side switcher circuit 361 changes over a transmitting antenna to be connected to a transmitter 351 among the plurality of transmitting antennas 321 to 328 in conjunction with an attitude information of the robotic arm, and changes an effective direction of a directional characteristic of the transmitting antenna portion 311. A receiving side switcher circuit 362 changes over a receiving antenna to be connected to a receiver 352 among the plurality of receiving antennas 331 to 338 in conjunction with the attitude information of the robotic arm and changes the effective direction of the directional characteristic of the receiving antenna portion 312.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 8, 2015
    Inventors: Toshihiko Mimura, Keita Dan, Tadashi Eguchi, Tomoyuki Takada