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公开(公告)号：US11520019B2
公开(公告)日：2022-12-06
申请号：US16818154
申请日：2020-03-13
申请人： Kazuma Matsuura , Yuuta Yoshino , Takefumi Takizawa , Soichiro Yokota , Jun Kishiwada , Hiroyoshi Sekiguchi , Tadashi Nakamura
发明人： Kazuma Matsuura , Yuuta Yoshino , Takefumi Takizawa , Soichiro Yokota , Jun Kishiwada , Hiroyoshi Sekiguchi , Tadashi Nakamura
IPC分类号： G01S7/4861 , G01S7/481 , G01S7/4865
摘要： A light signal detection device includes a light receiving optical system configured to receive a reflection signal reflected from an object when irradiation light emitted from an irradiation unit hits the object and reflects from the object; and circuitry configured to binarize the received reflection signal using a first threshold value, based on a determination of whether the reflection signal is equal to or greater than the first threshold value; binarize the received reflection signal using a second threshold value set with a given value similar to a noise signal value, based on a determination of whether the reflection signal is equal to or greater than the second threshold value; and measure a time difference between a time of emitting the irradiation light from the irradiation unit and a time of receiving a reflection signal equal to or greater than the first threshold value or the second threshold value.
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公开(公告)号：US20190208182A1
公开(公告)日：2019-07-04
申请号：US16296562
申请日：2019-03-08
申请人： Shin Aoki , Naoki Kikuchi , Kagehiro Nagao , Jun Kishiwada
发明人： Shin Aoki , Naoki Kikuchi , Kagehiro Nagao , Jun Kishiwada
IPC分类号： H04N13/246 , B60R11/04 , G06T7/80 , G06T7/70 , G06T7/521 , H04N13/239
CPC分类号： H04N13/246 , B60R11/04 , B60R2011/0026 , G06T7/521 , G06T7/70 , G06T7/85 , G06T2207/10012 , G06T2207/10021 , G06T2207/10028 , G06T2207/30208 , G06T2207/30252 , H04N13/239
摘要： A calibration method calibrates a stereo camera. The calibration method includes: measuring a relative position between the stereo camera and an object that is placed so as to fall within an image capturing area of the stereo camera; acquiring a captured image that is captured by the stereo camera and includes the object; and determining a calibration parameter for calibrating the stereo camera based on the relative position and the captured image.
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公开(公告)号：US20160109221A1
公开(公告)日：2016-04-21
申请号：US14879427
申请日：2015-10-09
申请人： Tatsuya TAKAHASHI , Kazuhiro Fujita , Toshiharu Murai , Takehiro Nishimori , Takahiro Kado , Jun Kishiwada
发明人： Tatsuya TAKAHASHI , Kazuhiro Fujita , Toshiharu Murai , Takehiro Nishimori , Takahiro Kado , Jun Kishiwada
CPC分类号： G01B11/14 , B25J9/1694 , F21V3/049 , F21V7/00 , F21Y2115/10 , G01B11/2545 , Y10S901/09
摘要： An illumination apparatus includes: a light emitting unit that outputs light; a light condensing unit that condenses the light output from the light emitting unit; a diffusion unit that diffuses the light condensed by the light condensing unit; and a uniformizing optical system that receives the light diffused by the diffusion unit, uniformizes a brightness distribution thereof compared with that of the light being received, and outputs the resulting light.
摘要翻译： 照明装置包括：发光单元，其输出光; 聚光单元，其聚集从所述发光单元输出的光; 扩散单元，其扩散由所述聚光单元聚光的光; 以及接收由扩散单元扩散的光的均匀化光学系统，与被接收的光的亮度分布相比，使其亮度分布均匀化，并输出所得到的光。
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公开(公告)号：US10972716B2
公开(公告)日：2021-04-06
申请号：US16296562
申请日：2019-03-08
申请人： Shin Aoki , Naoki Kikuchi , Kagehiro Nagao , Jun Kishiwada
发明人： Shin Aoki , Naoki Kikuchi , Kagehiro Nagao , Jun Kishiwada
IPC分类号： H04N13/246 , G06T7/80 , G06T7/70 , G06T7/521 , H04N13/239 , B60R11/04 , B60R11/00
摘要： A calibration method calibrates a stereo camera. The calibration method includes: measuring a relative position between the stereo camera and an object that is placed so as to fall within an image capturing area of the stereo camera; acquiring a captured image that is captured by the stereo camera and includes the object; and determining a calibration parameter for calibrating the stereo camera based on the relative position and the captured image.
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公开(公告)号：US11595631B2
公开(公告)日：2023-02-28
申请号：US17417136
申请日：2020-03-03
申请人： Kento Nakamura , Hiroyuki Satoh , Jun Kishiwada , Issei Abe
发明人： Kento Nakamura , Hiroyuki Satoh , Jun Kishiwada , Issei Abe
IPC分类号： H04N13/239 , G01C3/14 , H04N5/225 , H04N5/232 , H04N5/341 , H04N5/3745 , G02B9/62 , G02B13/00 , H04N13/296 , G02B27/00
摘要： An imaging device includes an imaging element, and an image capturing optical system configured to generate an image of an object on the imaging element. The image capturing optical system has a gradient decreasing region in which a change of a gradient of an image magnification rate with respect to an angle of view of the image generated on the imaging element decreases as a concerned position deviates farther away from an optical axis of the image capturing optical system, and a gradient increasing region in which the change of the gradient of the image magnification rate with respect to the angle of view of the image generated on the imaging element increases as the concerned position deviates farther away from the optical axis of the image capturing optical system.
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公开(公告)号：US20190141313A1
公开(公告)日：2019-05-09
申请号：US16235131
申请日：2018-12-28
申请人： Jun Kishiwada , Shin Aoki , Naoki Kikuchi , Kagehiro Nagao
发明人： Jun Kishiwada , Shin Aoki , Naoki Kikuchi , Kagehiro Nagao
IPC分类号： H04N13/246 , B60R11/04 , G06T7/80 , H04N13/239
摘要： A calibration method is for a photographic device that photographs an object through a transparent body. The calibration method includes: acquiring a first photographic image by photographing the object without interposing the transparent body; acquiring a second photographic image by photographing the object through the transparent body; calculating an absolute positional deviation that indicates a deviation in coordinates of an image of the object due to the transparent body based on coordinates of an image of the object on the first photographic image and coordinates of an image of the object on the second photographic image; calculating a correction parameter for calibrating the absolute positional deviation; and storing the correction parameter in the photographic device.
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公开(公告)号：US10277887B2
公开(公告)日：2019-04-30
申请号：US15114007
申请日：2015-01-28
申请人： Shin Aoki , Naoki Kikuchi , Kagehiro Nagao , Jun Kishiwada
发明人： Shin Aoki , Naoki Kikuchi , Kagehiro Nagao , Jun Kishiwada
IPC分类号： B60R11/04 , H04N13/246 , G06T7/80 , G06T7/70 , G06T7/521 , H04N13/239 , B60R11/00
摘要： A calibration method calibrates a stereo camera. The calibration method includes: measuring a relative position between the stereo camera and an object that is placed so as to fall within an image capturing area of the stereo camera; acquiring a captured image that is captured by the stereo camera and includes the object; and determining a calibration parameter for calibrating the stereo camera based on the relative position and the captured image.
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公开(公告)号：US10218961B2
公开(公告)日：2019-02-26
申请号：US15123998
申请日：2015-02-24
申请人： Jun Kishiwada , Shin Aoki , Naoki Kikuchi , Kagehiro Nagao
发明人： Jun Kishiwada , Shin Aoki , Naoki Kikuchi , Kagehiro Nagao
IPC分类号： G06T7/80 , H04N13/246 , B60R11/04 , H04N13/239
摘要： A calibration method is for a photographic device that photographs an object through a transparent body. The calibration method includes: acquiring a first photographic image by photographing the object without interposing the transparent body; acquiring a second photographic image by photographing the object through the transparent body; calculating an absolute positional deviation that indicates a deviation in coordinates of an image of the object due to the transparent body based on coordinates of an image of the object on the first photographic image and coordinates of an image of the object on the second photographic image; calculating a correction parameter for calibrating the absolute positional deviation; and storing the correction parameter in the photographic device.
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公开(公告)号：US09863759B2
公开(公告)日：2018-01-09
申请号：US14879427
申请日：2015-10-09
申请人： Tatsuya Takahashi , Kazuhiro Fujita , Toshiharu Murai , Takehiro Nishimori , Takahiro Kado , Jun Kishiwada
发明人： Tatsuya Takahashi , Kazuhiro Fujita , Toshiharu Murai , Takehiro Nishimori , Takahiro Kado , Jun Kishiwada
CPC分类号： G01B11/14 , B25J9/1694 , F21V3/049 , F21V7/00 , F21Y2115/10 , G01B11/2545 , Y10S901/09
摘要： An illumination apparatus includes: a light emitting unit that outputs light; a light condensing unit that condenses the light output from the light emitting unit; a diffusion unit that diffuses the light condensed by the light condensing unit; and a uniformizing optical system that receives the light diffused by the diffusion unit, uniformizes a brightness distribution thereof compared with that of the light being received, and outputs the resulting light.
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