Patents by Inventor Mitsuhiro Saito

Mitsuhiro Saito 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: 20230224581
    Abstract: An evaluation method for an image stabilization effect of an imaging apparatus comprising: acquiring a first image obtained by imaging an object in a state in which the imaging apparatus is vibrated; acquiring a second image obtained by imaging the object in a state in which the imaging apparatus is stationary; and calculating an evaluation value indicating an image stabilization effect in a peripheral region of the imaging apparatus, based on a difference in blur amounts between the first image and the second image in the peripheral region deviated from the center of an optical axis.
    Type: Application
    Filed: December 20, 2022
    Publication date: July 13, 2023
    Inventors: Ryuichiro YASUDA, Junichi SAITO, Mitsuhiro SAITO, Shimpei ITAGAKI, Go NAITO, Kyosuke SATO, Tomomi UESUGI, Naoki NOMURA
  • Publication number: 20230135751
    Abstract: The present invention provides an evaluation method for more precisely determining the blur correction capability of an image capturing apparatus. The method for evaluating the blur correction effect of the image capturing apparatus comprises acquiring a first change amount for each image capture from a predetermined captured number of subject images that have been captured by an image capturing apparatus that has been vibrated; dividing the predetermined number of captured images into a plurality of segments, and calculating a second change amount for each segment by performing statistical processing on the first change amounts in each of the plurality of segments; determining the largest second change amount from among the second change amounts in each segment to serve as a third change amount; and performing evaluation of the blur correction effect based on the third change amount.
    Type: Application
    Filed: November 1, 2022
    Publication date: May 4, 2023
    Inventors: Naoki Nomura, Mitsuhiro Saito, Toru Matsumoto, Tamaki Negishi
  • Patent number: 11431907
    Abstract: In an imaging device, a first motion information acquisition unit acquires motion information of the imaging device, and a second motion information acquisition unit acquires motion information of an external device. A shake information generation unit performs a process of subtracting the motion information of the external device from the motion information of the imaging device on the basis of the acquired motion information of the imaging device and the external device. Image blur correction information is generated from the subtracted motion information. An image blur correction control unit performs driving control of a correction lens of an optical system and a movement mechanism unit of an imaging element in accordance with the image blur correction information from the shake information generation unit.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: August 30, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mitsuhiro Saito, Kyosuke Sato
  • Publication number: 20220076390
    Abstract: An image processing apparatus that can obtain a high-definition image by reducing an alignment mistake of a plurality of images. The image processing apparatus includes an alignment unit that performs sequential alignment that aligns adjacent images and reference alignment that aligns images other than a reference image to the reference image, and a control unit that controls the alignment unit to align a plurality of images that include a same object and are continuously picked up by an image pickup unit in time series by combining the sequential alignment and the reference alignment.
    Type: Application
    Filed: September 6, 2021
    Publication date: March 10, 2022
    Inventors: Tomomi Uesugi, Koichi Washisu, Mitsuhiro Saito
  • Patent number: 11159724
    Abstract: An imaging apparatus includes a motion detection unit that detects motions of panning, tilting, and camera-shake as motion information. A motion determination unit determines a motion occurring in the imaging apparatus as motion information. A highpass filter (HPF) removes a low-frequency component of a signal of the motion information and a lowpass filter (LPF) removes a high-frequency component of an output signal of the HPF. A swing-back detection unit detects a period in which a motion of swing-back occurs from an output signal of the LPF and a determination result of the motion determination unit A motion vector detection unit detects a motion vector between a plurality of input images. An image cutout unit performs a process of cutting out a partial image from an input image at a position at which the motion of swing-back is reduced during the period in which the motion of swing-back is determined to occur.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: October 26, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Mitsuhiro Saito
  • Publication number: 20210258490
    Abstract: In an imaging device, a first motion information acquisition unit acquires motion information of the imaging device, and a second motion information acquisition unit acquires motion information of an external device. A shake information generation unit performs a process of subtracting the motion information of the external device from the motion information of the imaging device on the basis of the acquired motion information of the imaging device and the external device. Image blur correction information is generated from the subtracted motion information. An image blur correction control unit performs driving control of a correction lens of an optical system and a movement mechanism unit of an imaging element in accordance with the image blur correction information from the shake information generation unit.
    Type: Application
    Filed: February 16, 2021
    Publication date: August 19, 2021
    Inventors: Mitsuhiro Saito, Kyosuke Sato
  • Publication number: 20200120280
    Abstract: An imaging apparatus includes a motion detection unit that detects motions of panning, tilting, and camera-shake as motion information. A motion determination unit determines a motion occurring in the imaging apparatus as motion information. A highpass filter (HPF) removes a low-frequency component of a signal of the motion information and a lowpass filter (LPF) removes a high-frequency component of an output signal of the HPF. A swing-back detection unit detects a period in which a motion of swing-back occurs from an output signal of the LPF and a determination result of the motion determination unit A motion vector detection unit detects a motion vector between a plurality of input images. An image cutout unit performs a process of cutting out a partial image from an input image at a position at which the motion of swing-back is reduced during the period in which the motion of swing-back is determined to occur.
    Type: Application
    Filed: October 14, 2019
    Publication date: April 16, 2020
    Inventor: Mitsuhiro Saito
  • Patent number: 9706121
    Abstract: An image processing apparatus calculates correlation values between a plurality of images with respect to relative positions, and detects a motion vector between the plurality of images based on the calculated correlation values. The image processing apparatus then determines the reliability of the motion vector based on a value indicating the highest correlation among the correlation values and a correlation value obtained at a position that is distant by a predetermined distance or longer from a position at which the value indicating the highest correlation is obtained. In this way, the reliability of the motion vector can be determined with high accuracy.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: July 11, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mitsuhiro Saito
  • Patent number: 9444086
    Abstract: According to one embodiment, a battery unit includes a first cell unit, a second cell unit and a third cell unit arranged adjacent to the first cell unit, respectively. Each cell unit includes a plurality of secondary battery cells, and the respective secondary battery cells are formed of a main body of a substantially rectangular solid shape and a pair of first and second electrodes of different polarities each other pulled out from one end of the main body. A first bus bar connects the first electrodes of the first cell unit and the second electrodes of the second cell unit in a first line, and a second bus bar connects the second electrodes of the first cell unit and the first electrodes of the third cell unit in a second line.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: September 13, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Shimizu, Nagaaki Muro, Masahiro Sekino, Hidenori Miyamoto, Mitsuhiro Saito, Kenji Yazawa, Toshinori Uchida
  • Publication number: 20160058908
    Abstract: A laminate of a sheet-shaped cell culture is disclosed, which has excellent operability and is suitable for implantation. A method is disclosed for producing a laminate of a fibrin gel and a sheet-shaped cell culture, including a step of dripping a liquid containing fibrinogen onto an upper surface of a sheet-shaped cell culture, a step of spraying a liquid containing thrombin onto the surface, and a step of forming a fibrin gel layer on the surface by a reaction between fibrinogen and thrombin; and a laminate of a fibrin gel and a sheet-shaped cell culture produced by the method are disclosed.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 3, 2016
    Applicants: OSAKA UNIVERSITY, TERUMO KABUSHIKI KAISHA
    Inventors: Fumiya OOHASHI, Ryouhei TAKEUCHI, Tadashi SAMESHIMA, Shigeru MIYAGAWA, Yoshiki SAWA, Mitsuhiro SAITO
  • Publication number: 20150116512
    Abstract: An image processing apparatus calculates correlation values between a plurality of images with respect to relative positions, and detects a motion vector between the plurality of images based on the calculated correlation values. The image processing apparatus then determines the reliability of the motion vector based on a value indicating the highest correlation among the correlation values and a correlation value obtained at a position that is distant by a predetermined distance or longer from a position at which the value indicating the highest correlation is obtained. In this way, the reliability of the motion vector can be determined with high accuracy.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventor: Mitsuhiro Saito
  • Patent number: 8970722
    Abstract: An image processing apparatus such as a digital camera and a method of controlling the same is provided. In one embodiment, the digital camera generates an HDR image by combining two of a plurality of images to be combined for normal HDR processing. Before image combining operation, the digital camera converts the tone characteristics of at least one of the two images so as to assign more tone values to a tone area of an entire tone area of the HDR image which is not properly covered by either of the two images than before conversion.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuhiro Saito, Ken Terasawa
  • Patent number: 8953053
    Abstract: An image processing apparatus of the present invention includes a shake detector 109 which detects a shake of an image pickup apparatus, a shake analyzer 112 which obtains features of a plurality of shake components whose kinds are different from each other, a parameter calculator 113 which calculates a filtering process parameter depending on the features for each of the shake components, and a processor 114 which performs a filtering process using the filtering process parameter calculated for each of the shake components to calculate a shake reduction amount and performs a shake reduction process based on the shake reduction amount with respect to the image.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuhiro Saito, Takahiro Takahashi, Hidetoshi Tsubaki
  • Patent number: 8922664
    Abstract: An image processing apparatus includes a geometric converter configured to perform a geometric conversion process to a first frame image among frame images that are sequentially generated through imaging, based on motion information obtained by using a motion detector sensor, a motion vector detector configured to detect a motion vector between a geometric conversion image obtained through the geometric conversion process and a second frame image that has not undergone the geometric conversion process, an image stabilization parameter calculator configured to calculate an image stabilization parameter for different motions by using the motion information and the motion vector, and a stabilized image generator configured to generate a stabilized image through a deformation process to the second frame image or a frame image generated subsequent to the second frame image by utilizing the image stabilization parameter.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 30, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Oshino, Hidetoshi Tsubaki, Mitsuhiro Saito
  • Patent number: 8897986
    Abstract: It is an object of the present invention to control unstable behavior of a vehicle body that arises when braking during turning.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: November 25, 2014
    Assignee: Bosch Corporation
    Inventors: Shunsaku Ono, Junya Iwatsuki, Takahiro Ogawa, Saiji Suzuta, Mitsuhiro Saito
  • Patent number: 8593533
    Abstract: The present invention provides an image processing apparatus capable of obtaining good shake-corrected images in electronic image stablization irrespective of changes of image-taking conditions. An image processing apparatus comprises a shake correcting part that performs coordinate transformation processing based on shake information to an input image that is generated by use of an image-pickup device, and a method changing part that changes a coordinate transformation method for the coordinate transformation processing.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: November 26, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuhiro Saito, Takahiro Oshino, Hidetoshi Tsubaki
  • Publication number: 20130282253
    Abstract: It is an object of the present invention to control unstable behavior of a vehicle body that arises when braking during turning.
    Type: Application
    Filed: October 5, 2011
    Publication date: October 24, 2013
    Applicant: BOSCH CORPORATION
    Inventors: Shunsaku Ono, Junya Iwatsuki, Takahiro Ogawa, Saiji Suzuta, Mitsuhiro Saito
  • Patent number: 8508651
    Abstract: An image stabilizing apparatus includes a motion vector calculating part that calculates a motion vector between a plurality of images including a displacement caused by a motion of an image-pickup apparatus, a shake-correction parameter calculating part that receives the motion vector as input to calculate a shake correction amount, and an image transforming part that performs geometric transformation of the image in accordance with the shake correction amount. The shake-correction parameter calculating part performs variation amount calculation, variation amount correction and correction amount calculation based on the motion information between the plurality of images. The image stabilizing apparatus preserves a motion in video from an intended camera work and allows image stabilization for an unintended shake.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: August 13, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidetoshi Tsubaki, Mitsuhiro Saito, Takahiro Oshino
  • Publication number: 20130010139
    Abstract: An image processing apparatus includes a geometric converter configured to perform a geometric conversion process to a first frame image among frame images that are sequentially generated through imaging, based on motion information obtained by using a motion detector sensor, a motion vector detector configured to detect a motion vector between a geometric conversion image obtained through the geometric conversion process and a second frame image that has not undergone the geometric conversion process, an image stabilization parameter calculator configured to calculate an image stabilization parameter for different motions by using the motion information and the motion vector, and a stabilized image generator configured to generate a stabilized image through a deformation process to the second frame image or a frame image generated subsequent to the second frame image by utilizing the image stabilization parameter.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takahiro Oshino, Hidetoshi Tsubaki, Mitsuhiro Saito
  • Patent number: 8294773
    Abstract: An image processing apparatus includes a geometric converter configured to perform a geometric conversion process to a first frame image among frame images that are sequentially generated through imaging, based on motion information obtained by using a motion detector sensor, a motion vector detector configured to detect a motion vector between a geometric conversion image obtained through the geometric conversion process and a second frame image that has not undergone the geometric conversion process, an image stabilization parameter calculator configured to calculate an image stabilization parameter for different motions by using the motion information and the motion vector, and a stabilized image generator configured to generate a stabilized image through a deformation process to the second frame image or a frame image generated subsequent to the second frame image by utilizing the image stabilization parameter.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: October 23, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Oshino, Hidetoshi Tsubaki, Mitsuhiro Saito