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).
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Publication number: 20230224581Abstract: 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: ApplicationFiled: December 20, 2022Publication date: July 13, 2023Inventors: Ryuichiro YASUDA, Junichi SAITO, Mitsuhiro SAITO, Shimpei ITAGAKI, Go NAITO, Kyosuke SATO, Tomomi UESUGI, Naoki NOMURA
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Publication number: 20230135751Abstract: 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: ApplicationFiled: November 1, 2022Publication date: May 4, 2023Inventors: Naoki Nomura, Mitsuhiro Saito, Toru Matsumoto, Tamaki Negishi
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Patent number: 11431907Abstract: 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: GrantFiled: February 16, 2021Date of Patent: August 30, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Mitsuhiro Saito, Kyosuke Sato
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Publication number: 20220076390Abstract: 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: ApplicationFiled: September 6, 2021Publication date: March 10, 2022Inventors: Tomomi Uesugi, Koichi Washisu, Mitsuhiro Saito
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Patent number: 11159724Abstract: 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: GrantFiled: October 14, 2019Date of Patent: October 26, 2021Assignee: CANON KABUSHIKI KAISHAInventor: Mitsuhiro Saito
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Publication number: 20210258490Abstract: 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: ApplicationFiled: February 16, 2021Publication date: August 19, 2021Inventors: Mitsuhiro Saito, Kyosuke Sato
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Publication number: 20200120280Abstract: 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: ApplicationFiled: October 14, 2019Publication date: April 16, 2020Inventor: Mitsuhiro Saito
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Patent number: 9706121Abstract: 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: GrantFiled: October 27, 2014Date of Patent: July 11, 2017Assignee: Canon Kabushiki KaishaInventor: Mitsuhiro Saito
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Patent number: 9444086Abstract: 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: GrantFiled: September 10, 2010Date of Patent: September 13, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Hideo Shimizu, Nagaaki Muro, Masahiro Sekino, Hidenori Miyamoto, Mitsuhiro Saito, Kenji Yazawa, Toshinori Uchida
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Publication number: 20160058908Abstract: 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: ApplicationFiled: September 3, 2015Publication date: March 3, 2016Applicants: OSAKA UNIVERSITY, TERUMO KABUSHIKI KAISHAInventors: Fumiya OOHASHI, Ryouhei TAKEUCHI, Tadashi SAMESHIMA, Shigeru MIYAGAWA, Yoshiki SAWA, Mitsuhiro SAITO
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Publication number: 20150116512Abstract: 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: ApplicationFiled: October 27, 2014Publication date: April 30, 2015Inventor: Mitsuhiro Saito
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Patent number: 8970722Abstract: 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: GrantFiled: March 8, 2012Date of Patent: March 3, 2015Assignee: Canon Kabushiki KaishaInventors: Mitsuhiro Saito, Ken Terasawa
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Patent number: 8953053Abstract: 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: GrantFiled: July 21, 2010Date of Patent: February 10, 2015Assignee: Canon Kabushiki KaishaInventors: Mitsuhiro Saito, Takahiro Takahashi, Hidetoshi Tsubaki
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Patent number: 8922664Abstract: 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: GrantFiled: September 14, 2012Date of Patent: December 30, 2014Assignee: Canon Kabushiki KaishaInventors: Takahiro Oshino, Hidetoshi Tsubaki, Mitsuhiro Saito
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Patent number: 8897986Abstract: It is an object of the present invention to control unstable behavior of a vehicle body that arises when braking during turning.Type: GrantFiled: October 5, 2011Date of Patent: November 25, 2014Assignee: Bosch CorporationInventors: Shunsaku Ono, Junya Iwatsuki, Takahiro Ogawa, Saiji Suzuta, Mitsuhiro Saito
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Patent number: 8593533Abstract: 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: GrantFiled: July 18, 2011Date of Patent: November 26, 2013Assignee: Canon Kabushiki KaishaInventors: Mitsuhiro Saito, Takahiro Oshino, Hidetoshi Tsubaki
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Publication number: 20130282253Abstract: It is an object of the present invention to control unstable behavior of a vehicle body that arises when braking during turning.Type: ApplicationFiled: October 5, 2011Publication date: October 24, 2013Applicant: BOSCH CORPORATIONInventors: Shunsaku Ono, Junya Iwatsuki, Takahiro Ogawa, Saiji Suzuta, Mitsuhiro Saito
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Patent number: 8508651Abstract: 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: GrantFiled: March 22, 2011Date of Patent: August 13, 2013Assignee: Canon Kabushiki KaishaInventors: Hidetoshi Tsubaki, Mitsuhiro Saito, Takahiro Oshino
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Publication number: 20130010139Abstract: 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: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Takahiro Oshino, Hidetoshi Tsubaki, Mitsuhiro Saito
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Patent number: 8294773Abstract: 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: GrantFiled: November 12, 2008Date of Patent: October 23, 2012Assignee: Canon Kabushiki KaishaInventors: Takahiro Oshino, Hidetoshi Tsubaki, Mitsuhiro Saito