Patents by Inventor Tetsu Wada

Tetsu Wada 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: 11290634
    Abstract: Provided are an imaging apparatus, an imaging method, and a program that can directly determine a sensor position at which an image with good image quality is obtained from obtained image information. The imaging apparatus moves an image sensor to a plurality of sensor positions in the optical axis direction of an imaging lens, and focuses a subject at each of the plurality of sensor positions. Image data of the subject focused at each of the plurality of sensor positions is acquired, and the image data is analyzed to calculate an image evaluation value at each of the plurality of sensor positions.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: March 29, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Tetsu Wada, Michio Cho, Kensuke Masui
  • Publication number: 20220094935
    Abstract: Provided are an image processing device capable of performing compression processing on a video captured in each video capturing mode according to a first video capturing mode and a second video capturing mode with different capturing conditions. A possible range of a quantization parameter applied in a case where the video is compressed is made different in the first video capturing mode and the second video capturing mode with different capturing conditions. The quantization parameter is determined within a first range in a case of the first video capturing mode, and the quantization parameter is determined within a second range narrower than the first range in a case of the second video capturing mode. In particular, a second upper limit value of the second range is smaller than a first upper limit value of the first range, and a second lower limit value of the second range is larger than a first lower limit value of the first range.
    Type: Application
    Filed: December 6, 2021
    Publication date: March 24, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Yukinori NISHIYAMA, Tetsu WADA, Koichi TANAKA, Tetsuya FUJIKAWA, Kenkichi HAYASHI
  • Patent number: 11223826
    Abstract: Provided are an image processing device capable of performing compression processing on a video captured in each video capturing mode according to a first video capturing mode and a second video capturing mode with different capturing conditions. A possible range of a quantization parameter applied in a case where the video is compressed is made different in the first video capturing mode and the second video capturing mode with different capturing conditions. The quantization parameter is determined within a first range in a case of the first video capturing mode, and the quantization parameter is determined within a second range narrower than the first range in a case of the second video capturing mode. In particular, a second upper limit value of the second range is smaller than a first upper limit value of the first range, and a second lower limit value of the second range is larger than a first lower limit value of the first range.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: January 11, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Yukinori Nishiyama, Tetsu Wada, Koichi Tanaka, Tetsuya Fujikawa, Kenkichi Hayashi
  • Publication number: 20210329161
    Abstract: An image capturing device includes an image capturing section that captures first video data having a frame cycle of a first frame cycle and an exposure time for one frame shorter than the first frame cycle, an image acquisition section that acquires the first video data captured by the image capturing section, a detection section that detects a flicker of a light source in the first video data, and an image capturing frame cycle control section that controls the frame cycle of the image capturing in the image capturing section. The image capturing frame cycle control section changes the frame cycle of the first video data captured by the image capturing section from the first frame cycle to a second frame cycle, which is a frame cycle shorter than the first frame cycle, in a case where the detection section detects the flicker.
    Type: Application
    Filed: June 29, 2021
    Publication date: October 21, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Tetsuya Fujikawa, Yukinori Nishiyama, Koichi Tanaka, Tetsu Wada, Kenkichi Hayashi
  • Patent number: 11089222
    Abstract: A shake correction device that corrects a shake of a captured image captured by an imager which images subjects through an imaging optical system, and includes: a movement detection sensor as defined herein; a drive mechanism as defined herein; an optical splitter as defined herein; a subject light detector as defined herein; and a processor as defined herein, and the processor calculates distances of the subjects formed on the light receiving surface of the subject light detector from the imaging optical system based on output signals of the subject light detector, and detects the movement amount as the second movement in a case where a movement amount of the subject of which the distance is maximum exceeds a threshold value.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: August 10, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Publication number: 20210185228
    Abstract: An imaging device according to a first aspect of the present invention includes an imaging section that captures a video, a static image file generation section that extracts a first frame from a plurality of frames constituting the video and generates a static image file, a video file generation section that divides the video in accordance with the generation of the static image file to generate a plurality of video files, and a storage section that stores the static image file in association with a first video file that includes the first frame among the plurality of video files.
    Type: Application
    Filed: February 26, 2021
    Publication date: June 17, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Tetsu WADA, Kenkichi HAYASHI, Koichi TANAKA, Yukinori NISHIYAMA, Tetsuya FUJIKAWA
  • Publication number: 20210176470
    Abstract: Provided are an image processing device capable of performing compression processing on a video captured in each video capturing mode according to a first video capturing mode and a second video capturing mode with different capturing conditions. A possible range of a quantization parameter applied in a case where the video is compressed is made different in the first video capturing mode and the second video capturing mode with different capturing conditions. The quantization parameter is determined within a first range in a case of the first video capturing mode, and the quantization parameter is determined within a second range narrower than the first range in a case of the second video capturing mode. In particular, a second upper limit value of the second range is smaller than a first upper limit value of the first range, and a second lower limit value of the second range is larger than a first lower limit value of the first range.
    Type: Application
    Filed: February 23, 2021
    Publication date: June 10, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Yukinori NISHIYAMA, Tetsu WADA, Koichi TANAKA, Tetsuya FUJIKAWA, Kenkichi HAYASHI
  • Publication number: 20210174090
    Abstract: An imaging device including an image sensor that captures a video; and a processor configured to extract a first frame from a plurality of frames constituting the video captured by the image sensor to generate a first static image file, generate a video file constituted of a plurality of frames including the first frame from the video, and store the video file, the first static image file, and additional information indicating a position of the first frame in the video file.
    Type: Application
    Filed: February 23, 2021
    Publication date: June 10, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Tetsuya FUJIKAWA, Yukinori NISHIYAMA, Koichi TANAKA, Tetsu WADA, Kenkichi HAYASHI
  • Patent number: 10931865
    Abstract: Provided are an imaging device, an imaging device main body, and a focusing control method of an imaging device capable of adjusting a focus with high accuracy by appropriately supporting the focus adjustment in a manual manner. An image sensor movement driver (220) that moves an image sensor (210) along an optical axis (L), and an image sensor movement controller (250a) that controls the movement of the image sensor (210) by controlling the image sensor movement driver (220) are provided. In a case where a subject is focused, the image sensor movement controller (250a) starts the tracking, and controls the movement of the image sensor (210) such that a focusing state is maintained based on a defocus amount detected by the phase difference AF processing unit (132).
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: February 23, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Publication number: 20210006708
    Abstract: Provided are an imaging apparatus, an imaging method, and a program that can directly determine a sensor position at which an image with good image quality is obtained from obtained image information. The imaging apparatus moves an image sensor to a plurality of sensor positions in the optical axis direction of an imaging lens, and focuses a subject at each of the plurality of sensor positions. Image data of the subject focused at each of the plurality of sensor positions is acquired, and the image data is analyzed to calculate an image evaluation value at each of the plurality of sensor positions.
    Type: Application
    Filed: September 21, 2020
    Publication date: January 7, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Tetsu WADA, Michio CHO, Kensuke MASUI
  • Patent number: 10788644
    Abstract: Provided are a lens device capable of preventing a focus shift of an imaging optical system due to heat without reducing a degree of freedom of design, an imaging device comprising the same, and a focus shift correction method of a lens device.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: September 29, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Patent number: 10785402
    Abstract: Provided are an imaging device capable of accelerating AF and a focusing control method thereof. A focus lens drive unit (16) that drives a focus lens (12), and an image sensor movement drive unit (120) that moves an image sensor (110) along an optical axis (L) are included. A target position of the focus lens (12) for focusing on a subject is set, and the focus lens (12) is moved toward the target position. The image sensor (110) is moved before the focus lens (12) reaches the target position such that focusing is performed. A focusing state is maintained by moving the image sensor (110) so as to follow the focus lens (12) after the focusing is performed.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: September 22, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Patent number: 10764488
    Abstract: Provided are an imaging device, an imaging device main body, and a focusing control method of an imaging device capable of appropriately supporting a photographer at the time of focusing. An image sensor movement driver that moves an image sensor along an optical axis is provided, and a subject is tracked by moving the image sensor within a movable range. A focusing operation detector that detects a focusing operation for the subject and a movable range switch that switches the movable range of the image sensor are provided. In a case where the focusing operation is detected by the focusing operation detector, the movable range switch widens the movable range of the image sensor.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: September 1, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Publication number: 20200228714
    Abstract: A shake correction device that corrects a shake of a captured image captured by an imager which images subjects through an imaging optical system, and includes: a movement detection sensor as defined herein; a drive mechanism as defined herein; an optical splitter as defined herein; a subject light detector as defined herein; and a processor as defined herein, and the processor calculates distances of the subjects formed on the light receiving surface of the subject light detector from the imaging optical system based on output signals of the subject light detector, and detects the movement amount as the second movement in a case where a movement amount of the subject of which the distance is maximum exceeds a threshold value.
    Type: Application
    Filed: March 31, 2020
    Publication date: July 16, 2020
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Publication number: 20200221017
    Abstract: Provided are an imaging device, an imaging device main body, and a focusing control method of an imaging device capable of adjusting a focus with high accuracy by appropriately supporting the focus adjustment in a manual manner. An image sensor movement driver (220) that moves an image sensor (210) along an optical axis (L), and an image sensor movement controller (250a) that controls the movement of the image sensor (210) by controlling the image sensor movement driver (220) are provided. In a case where a subject is focused, the image sensor movement controller (250a) starts the tracking, and controls the movement of the image sensor (210) such that a focusing state is maintained based on a defocus amount detected by the phase difference AF processing unit (132).
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Publication number: 20200221034
    Abstract: Provided are an imaging device, an imaging device main body, and a focusing control method of an imaging device capable of appropriately supporting a photographer at the time of focusing. An image sensor movement driver that moves an image sensor along an optical axis is provided, and a subject is tracked by moving the image sensor within a movable range. A focusing operation detector that detects a focusing operation for the subject and a movable range switch that switches the movable range of the image sensor are provided. In a case where the focusing operation is detected by the focusing operation detector, the movable range switch widens the movable range of the image sensor.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Publication number: 20200221016
    Abstract: Provided are an imaging device capable of accelerating AF and a focusing control method thereof. A focus lens drive unit (16) that drives a focus lens (12), and an image sensor movement drive unit (120) that moves an image sensor (110) along an optical axis (L) are included. A target position of the focus lens (12) for focusing on a subject is set, and the focus lens (12) is moved toward the target position. The image sensor (110) is moved before the focus lens (12) reaches the target position such that focusing is performed. A focusing state is maintained by moving the image sensor (110) so as to follow the focus lens (12) after the focusing is performed.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Applicant: FUJIFILM Corporation
    Inventor: Tetsu WADA
  • Patent number: 10652467
    Abstract: A shake correction device that corrects a shake of a captured image captured by an imaging element which images subjects through an imaging optical system, and includes: a movement detection sensor as defined herein; a drive mechanism as defined herein; an optical element as defined herein; a subject light detection unit as defined herein; a movement detection unit as defined herein; and a drive controller as defined herein, and the movement detection unit calculates distances of the subjects formed on the light receiving surface of the subject light detection unit from the imaging optical system based on output signals of the subject light detection unit, and detects the movement amount as the second movement in a case where a movement amount of the subject of which the distance is maximum exceeds a threshold value.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: May 12, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Patent number: 10645296
    Abstract: A first imaging unit images subject light after angle-of-view mark light is removed by a dichroic mirror, and outputs a first imaging signal. A second imaging unit images the angle-of-view mark light of each of other television cameras. A calculating unit calculates a position of a virtual angle-of-view mark showing an imaging angle of view of each of the other television cameras in an imaging angle of view of the host television camera based on the angle-of-view mark light of each of the other television cameras. An image compositing unit generates a composite image by compositing a virtual angle-of-view mark image and a virtual angle-of-view frame image corresponding to the position of the virtual angle-of-view mark with a video image based on the first imaging signal. The composite image is displayed on a monitor.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: May 5, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada
  • Patent number: 10574907
    Abstract: A first imaging unit images angle-of-view mark light of each of other television cameras. An image compositing unit generates a virtual angle-of-view mark image and a virtual angle-of-view frame image as a virtual angle-of-view image showing an imaging angle of view of each of the other television cameras in an imaging angle of view of the host television camera based on the angle-of-view mark light of each of the other television cameras. The image compositing unit generates a composite image by compositing the virtual angle-of-view mark image and the virtual angle-of-view frame image with a video image. The composite image is displayed on a lens monitor of a lens device that is detachable from a camera body.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: February 25, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Tetsu Wada