Patents by Inventor Yutaka Oki
Yutaka Oki 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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Patent number: 11880993Abstract: An image processing device used in determining a distance to an object includes a memory that stores a stereo image of the object including first and second images, and a processor configured to detect first and second reference lines in the first image, calculate disparity between the first and second images, correct, using the calculated disparity, a position of the first reference line in the second image, and calculate a parameter for determining the distance to the object, the parameter indicating a difference between the first and second images based on a distance between the first and second reference lines in the first image and disparity between the first reference line in the first image and the corrected first reference line in the second image.Type: GrantFiled: February 25, 2019Date of Patent: January 23, 2024Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage CorporationInventor: Yutaka Oki
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Patent number: 11579612Abstract: A position and attitude estimation apparatus includes sub-sensor input accepters, a speed sensor state determiner, a scale estimator, and a position and attitude information corrector. The sub-sensor input accepter accepts an output of a sub-sensor which acquires information regarding a movement amount based on information other than an output value of a speed sensor. The speed sensor state determiner determines whether the output value of the speed sensor is reliable. The scale estimator estimates a size of the movement amount based on at least one of the output value of the speed sensor and an output value of the sub-sensor. The position and attitude information corrector corrects position and attitude information based on the size of the movement amount estimated by the scale estimator.Type: GrantFiled: March 6, 2020Date of Patent: February 14, 2023Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATIONInventors: Manabu Nishiyama, Yutaka Oki
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Patent number: 11461928Abstract: A location estimation apparatus includes a reliability calculation circuit, a selection circuit, and a self-location estimation circuit. The reliability calculation circuit calculates a reliability with respect to location estimation for a plurality of devices capturing a plurality of input images. The selection circuit selects one of the devices based on the reliability. The self-location estimation circuit performs self-location estimation based on the image captured by the selected device.Type: GrantFiled: February 24, 2020Date of Patent: October 4, 2022Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATIONInventors: Yutaka Oki, Manabu Nishiyama
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Publication number: 20220301189Abstract: According to one embodiment, a motion estimation device includes a first receiving circuit that receives a first input frame and a calculation circuit that performs motion estimation processing on the first input frame. The calculation circuit estimates a distance for each pixel of the first input frame and estimates a reliability of the distance for each pixel of the first input frame based on pixel information of the first input frame.Type: ApplicationFiled: August 31, 2021Publication date: September 22, 2022Inventors: Yutaka YAMADA, Yuichi ODA, Manabu NISHIYAMA, Yutaka OKI
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Publication number: 20220300744Abstract: According to one embodiment, an information processing device includes a pixel extraction unit, a self-location estimation unit, and a three-dimensional location estimation unit. The pixel extraction unit acquires information from a plurality of pixels in an image, the plurality of pixels having a shift of a first number of pixels in a first direction, and having a shift of a second number of pixels in a second direction crossing the first direction along with a shift of at least one pixel in the first direction. The self-location estimation unit estimates a location and orientation of the sensor providing the image. The three-dimensional location estimation unit reconstructs three-dimensional information based on the information from the plurality of pixels extracted by the pixel extraction unit and the estimated location and orientation of the sensor.Type: ApplicationFiled: August 31, 2021Publication date: September 22, 2022Inventor: Yutaka OKI
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Publication number: 20220301208Abstract: According to one embodiment, a distance estimation device comprises a first distance estimation unit based on a first estimation method, and a second distance estimation unit based on a second estimation method different from the first estimation method. The second distance estimation unit is configured to change a part of the second estimation method according to an output of the first distance estimation unit.Type: ApplicationFiled: September 7, 2021Publication date: September 22, 2022Inventors: Yuichi ODA, Yutaka YAMADA, Manabu NISHIYAMA, Yutaka OKI
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Publication number: 20210074020Abstract: A location estimation apparatus includes a reliability calculation circuit, a selection circuit, and a self-location estimation circuit. The reliability calculation circuit calculates a reliability with respect to location estimation for a plurality of devices capturing a plurality of input images. The selection circuit selects one of the devices based on the reliability. The self-location estimation circuit performs self-location estimation based on the image captured by the selected device.Type: ApplicationFiled: February 24, 2020Publication date: March 11, 2021Inventors: Yutaka OKI, Manabu NISHIYAMA
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Publication number: 20210041875Abstract: A position attitude estimation apparatus includes sub-sensor input accepters, a speed sensor state determiner, a scale estimator, and a position attitude information corrector. The sub-sensor input accepter accepts an output of a sub-sensor which acquires information regarding a movement amount based on information other than an output value of a speed sensor. The speed sensor state determiner determines whether the output value of the speed sensor is reliable. The scale estimator estimates a size of the movement amount based on at least one of the output value of the speed sensor and an output value of the sub-sensor. The position attitude information corrector corrects position attitude information based on the size of the movement amount estimated by the scale estimator.Type: ApplicationFiled: March 6, 2020Publication date: February 11, 2021Inventors: Manabu Nishiyama, Yutaka Oki
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Patent number: 10771688Abstract: According to one embodiment, an image processing device that processes a first image and a second image captured by a camera includes a first circuit, a second circuit and a third circuit. The first circuit determines a first position of a first reference line and a second position of a second reference line in at least one of the first image and the second image. The second circuit determines a image deformation reduction parameter based on a line width from a first reference point on the first reference line at the first position to a second reference point on the second reference line at the second position. The third circuit reduces image deformation in the first image or the second image based on the image deformation reduction parameter.Type: GrantFiled: September 12, 2018Date of Patent: September 8, 2020Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage CorporationInventor: Yutaka Oki
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Publication number: 20200074660Abstract: An image processing device used in determining a distance to an object includes a memory that stores a stereo image of the object including first and second images, and a processor configured to detect first and second reference lines in the first image, calculate disparity between the first and second images, correct, using the calculated disparity, a position of the first reference line in the second image, and calculate a parameter for determining the distance to the object, the parameter indicating a difference between the first and second images based on a distance between the first and second reference lines in the first image and disparity between the first reference line in the first image and the corrected first reference line in the second image.Type: ApplicationFiled: February 25, 2019Publication date: March 5, 2020Inventor: Yutaka OKI
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Patent number: 10559206Abstract: A mobile body spatial information calculation apparatus according to an embodiment includes an input section configured to receive sensor information including information on one or more target objects based on a position of an own mobile body from a sensor apparatus, an object recognition section configured to recognize the target object based on the sensor information, a calculation section configured to calculate a collision prediction time and a target portion angle based on the sensor information on the target object recognized by the object recognition section, and a spatial information generation section configured to generate spatial information according to the collision prediction time and the target portion angle using the collision prediction time and the target portion angle calculated by the calculation section and store the generated spatial information.Type: GrantFiled: August 25, 2017Date of Patent: February 11, 2020Assignee: Kabushiki Kaisha ToshibaInventors: Hiroyuki Ohsawa, Akihiro Imamura, Kazuyasu Ohwaki, Yutaka Oki
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Patent number: 10510163Abstract: According to an embodiment, an image processing apparatus includes a matching unit configured to perform stereo matching processing on two images obtained through imaging using two cameras, an error map creating unit configured to create an error map indicating a displacement amount of the two images in a direction orthogonal to a search line for the two images subjected to the stereo matching processing, and a parallelization parameter error determining unit configured to determine whether or not there is an error of rectification which parallelizes the two images, based on the error map.Type: GrantFiled: August 25, 2017Date of Patent: December 17, 2019Assignee: Kabushiki Kaisha ToshibaInventor: Yutaka Oki
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Publication number: 20190297254Abstract: According to one embodiment, an image processing device that processes a first image and a second image captured by a camera includes a first circuit, a second circuit and a third circuit. The first circuit determines a first position of a first reference line and a second position of a second reference line in at least one of the first image and the second image. The second circuit determines a image deformation reduction parameter based on a line width from a first reference point on the first reference line at the first position to a second reference point on the second reference line at the second position. The third circuit reduces image deformation in the first image or the second image based on the image deformation reduction parameter.Type: ApplicationFiled: September 12, 2018Publication date: September 26, 2019Inventor: Yutaka Oki
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Patent number: 10157329Abstract: A moving body detecting device in accordance with embodiments includes a motion information acquirer, approximate image generator, and moving body detector. The motion information acquirer generates motion information on an imaging device capable of performing imaging with a first exposure time and a second exposure time longer than the first exposure time. The approximate image generator generates an approximate image generated by approximating one of a first photographic image imaged with the first exposure time and a second photographic image imaged with the second exposure time to another photographic image, on the basis of the motion information. The moving body detecting device detects a moving body captured in the first and second photographic images, on the basis of the approximate image and the other photographic image.Type: GrantFiled: September 8, 2015Date of Patent: December 18, 2018Assignee: Kabushiki Kaisha ToshibaInventor: Yutaka Oki
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Publication number: 20180268699Abstract: A mobile body spatial information calculation apparatus according to an embodiment includes an input section configured to receive sensor information including information on one or more target objects based on a position of an own mobile body from a sensor apparatus, an object recognition section configured to recognize the target object based on the sensor information, a calculation section configured to calculate a collision prediction time and a target portion angle based on the sensor information on the target object recognized by the object recognition section, and a spatial information generation section configured to generate spatial information according to the collision prediction time and the target portion angle using the collision prediction time and the target portion angle calculated by the calculation section and store the generated spatial information.Type: ApplicationFiled: August 25, 2017Publication date: September 20, 2018Inventors: Hiroyuki Ohsawa, Akihiro Imamura, Kazuyasu Ohwaki, Yutaka Oki
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Publication number: 20180204351Abstract: According to an embodiment, an image processing apparatus includes a matching unit configured to perform stereo matching processing on two images obtained through imaging using two cameras, an error map creating unit configured to create an error map indicating a displacement amount of the two images in a direction orthogonal to a search line for the two images subjected to the stereo matching processing, and a parallelization parameter error determining unit configured to determine whether or not there is an error of rectification which parallelizes the two images, based on the error map.Type: ApplicationFiled: August 25, 2017Publication date: July 19, 2018Applicant: Kabushiki Kaisha ToshibaInventor: Yutaka Oki
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Publication number: 20160267350Abstract: A moving body detecting device in accordance with embodiments includes a motion information acquirer, approximate image generator, and moving body detector. The motion information acquirer generates motion information on an imaging device capable of performing imaging with a first exposure time and a second exposure time longer than the first exposure time. The approximate image generator generates an approximate image generated by approximating one of a first photographic image imaged with the first exposure time and a second photographic image imaged with the second exposure time to another photographic image, on the basis of the motion information. The moving body detecting device detects a moving body captured in the first and second photographic images, on the basis of the approximate image and the other photographic image.Type: ApplicationFiled: September 8, 2015Publication date: September 15, 2016Inventor: Yutaka OKI
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Patent number: 8280062Abstract: According to one embodiment, a sound corrector includes a signal outputter, a response signal, a frequency specifier, a coefficient specifier, a filter, and an outputter. The signal outputter outputs a measurement signal to measure acoustical properties of an object to be measured. The response signal receiver receives a response signal from the object in response to the measurement signal. The frequency specifier specifies a resonant frequency at a resonance peak from the response signal. The coefficient specifier specifies a correction coefficient of a correction filter for reducing the resonant frequency based on the specified resonant frequency. The filter performs filtering on a signal to be output to the object using the correction filter with the correction coefficient. The outputter outputs the signal having undergone the filtering to the object.Type: GrantFiled: August 4, 2009Date of Patent: October 2, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Fukuda, Toshifumi Yamamoto, Norikatsu Chiba, Shigeyasu Iwata, Yasuhiro Kanishima, Kazuyuki Saito, Yutaka Oki
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Patent number: 8081769Abstract: According to one embodiment, an apparatus for cancelling resonance in an outer-ear canal, comprises an outer-ear canal model includes attenuator modules representing reflection coefficients of an earphone or headphone and an eardrum, and a delay module having a delay time corresponding to a distance between the earphone or headphone and the eardrum, an inverse-filter forming unit configured to form an inverse filter of the outer-ear canal model, and a convolution module configured to perform convolution on an impulse response from the inverse filter and a sound-source signal.Type: GrantFiled: February 6, 2009Date of Patent: December 20, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Fukuda, Toshifumi Yamamoto, Yutaka Oki
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Patent number: 7957549Abstract: According to one embodiment, an acoustic apparatus comprises an electro-acoustic transducer with a first function of converting an electric signal to an acoustic signal and a second function of converting an acoustic signal to an electric signal, the electro-acoustic transducer configured to convert a measuring electric signal to a measuring acoustic signal using the first function, and to convert an acoustic response signal responding to the measuring acoustic signal from an object to an electric response signal using the second function, a switch configured to switch the first function to the second function, or vice versa, and a switch controller configured to control a function switching of the switch in accordance with a sound source signal.Type: GrantFiled: December 9, 2009Date of Patent: June 7, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Norikatsu Chiba, Toshifumi Yamamoto, Takashi Fukuda, Yasuhiro Kanishima, Shigeyasu Iwata, Kazuyuki Saito, Yutaka Oki