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公开(公告)号：US11102364B2
公开(公告)日：2021-08-24
申请号：US16776521
申请日：2020-01-30
申请人： Yuuki Nakada , Hajime Tsukahara , Hiroki Shirado , Ayumu Hashimoto , Tomohiko Ono , Tatsuya Ozaki , Hiroshi Kubo , Yoshiaki Nagao , Kimiharu Yanagisawa , Masahiro Itoh
发明人： Yuuki Nakada , Hajime Tsukahara , Hiroki Shirado , Ayumu Hashimoto , Tomohiko Ono , Tatsuya Ozaki , Hiroshi Kubo , Yoshiaki Nagao , Kimiharu Yanagisawa , Masahiro Itoh
摘要： An inclination detecting device includes processing circuitry. The processing circuitry is configured to detect, in image information that is an image of an object imaged by an imaging device at an imaging position where a background member forms a background, a first boundary between the background member and a shadow of the object at detection positions in at least one of main-scanning and sub-scanning directions on an outline of the object; detect a second boundary between the object and the shadow of the object at detection positions in at least one of the main-scanning and sub-scanning directions on the outline of the object in the image information; detect a boundary group including detection results of the second boundary at the detection positions; and detect an inclination of the object in the image information from detection results of the first boundary, the second boundary, and the boundary group.
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公开(公告)号：US10951791B2
公开(公告)日：2021-03-16
申请号：US16800098
申请日：2020-02-25
申请人： Ayumu Hashimoto , Hajime Tsukahara , Hiroki Shirado , Yuuki Nakada , Tomohiko Ono , Tatsuya Ozaki , Hiroshi Kubo , Kimiharu Yanagisawa , Yoshiaki Nagao , Masahiro Itoh
发明人： Ayumu Hashimoto , Hajime Tsukahara , Hiroki Shirado , Yuuki Nakada , Tomohiko Ono , Tatsuya Ozaki , Hiroshi Kubo , Kimiharu Yanagisawa , Yoshiaki Nagao , Masahiro Itoh
摘要： An image processing apparatus includes circuitry to: obtain a read image read from an image of a document output from an image reading device; detect an edge between a background area and a document area in the read image; sample a detection result of the edge at each first interval in a first direction to extract a first boundary point group including a plurality of boundary points; sample the detection result of the edge at each second interval in the first direction to extract a second boundary point group including a plurality of boundary points; determine a noise removal condition based on the first boundary point group; remove, from the second boundary point group, a boundary point satisfying the noise removal condition as noise; and calculate a linear equation approximating the second boundary point group from which the noise is removed.
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3.发明授权公开(公告)号：US11102375B2
公开(公告)日：2021-08-24
申请号：US16654007
申请日：2019-10-16
申请人： Hiroshi Kubo , Kimiharu Yanagisawa , Hajime Tsukahara , Yoshiaki Nagao , Masahiro Itoh , Tatsuya Ozaki , Tomohiko Ono , Yuuki Nakada , Hiroki Shirado , Ayumu Hashimoto
发明人： Hiroshi Kubo , Kimiharu Yanagisawa , Hajime Tsukahara , Yoshiaki Nagao , Masahiro Itoh , Tatsuya Ozaki , Tomohiko Ono , Yuuki Nakada , Hiroki Shirado , Ayumu Hashimoto
摘要： A sheet reading apparatus includes a sheet table on which a sheet is placed, a conveyor configured to convey the sheet, a reading guide configured to guide the sheet conveyed by the conveyor, and a reading device configured to read a shadow of the sheet conveyed by the conveyor, for detection of an inclination of the sheet. The sheet reading apparatus further includes a transparent member disposed at a position on a reading line of the reading device. The position on the reading line is withdrawn from the sheet and adjacent to the reading guide.
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公开(公告)号：US11115561B2
公开(公告)日：2021-09-07
申请号：US16775287
申请日：2020-01-29
申请人： Hajime Tsukahara , Hiroki Shirado , Ayumu Hashimoto , Yuuki Nakada , Tomohiko Ono , Tatsuya Ozaki , Hiroshi Kubo , Yoshiaki Nagao , Kimiharu Yanagisawa , Masahiro Itoh
发明人： Hajime Tsukahara , Hiroki Shirado , Ayumu Hashimoto , Yuuki Nakada , Tomohiko Ono , Tatsuya Ozaki , Hiroshi Kubo , Yoshiaki Nagao , Kimiharu Yanagisawa , Masahiro Itoh
摘要： An inclination detecting device includes processing circuitry. The processing circuitry is configured to detect, in image information that is an image of an object imaged by an imaging device at an imaging position where a background member forms a background, a first boundary between the background member and a shadow of the object; detect a second boundary between the object and the shadow of the object in the image information; and detect an inclination of the object in the image information from the first boundary and the second boundary detected by the processing circuitry.
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公开(公告)号：US11102365B2
公开(公告)日：2021-08-24
申请号：US16841708
申请日：2020-04-07
申请人： Tomohiko Ono , Hajime Tsukahara , Hiroki Shirado , Ayumu Hashimoto , Yuuki Nakada , Tatsuya Ozaki , Hiroshi Kubo , Yoshiaki Nagao , Kimiharu Yanagisawa , Masahiro Itoh
发明人： Tomohiko Ono , Hajime Tsukahara , Hiroki Shirado , Ayumu Hashimoto , Yuuki Nakada , Tatsuya Ozaki , Hiroshi Kubo , Yoshiaki Nagao , Kimiharu Yanagisawa , Masahiro Itoh
摘要： An edge detecting device includes processing circuitry. The processing circuitry is configured to acquire first color information and second color information in an image including a document region and a background region outside the document region. The first color information is color information of the background region and the second color information is color information of the document region. The processing circuitry is configured to detect a boundary between the background region and the document region from a change in color information between the first color information and the second color information.
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公开(公告)号：US11012585B2
公开(公告)日：2021-05-18
申请号：US16431954
申请日：2019-06-05
摘要： An image processing apparatus includes a sensor and circuitry. The sensor is configured to read a visible spectrum and an invisible spectrum of an image. The circuitry is configured to separate the image read into a visible image and an invisible image and perform different image correction processes on the visible image and the invisible image, respectively.
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公开(公告)号：US20200053229A1
公开(公告)日：2020-02-13
申请号：US16431954
申请日：2019-06-05
摘要： An image processing apparatus includes a sensor and circuitry. The sensor is configured to read a visible spectrum and an invisible spectrum of an image. The circuitry is configured to separate the image read into a visible image and an invisible image and perform different image correction processes on the visible image and the invisible image, respectively.
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公开(公告)号：US10048808B2
公开(公告)日：2018-08-14
申请号：US14940484
申请日：2015-11-13
申请人： Koji Masuda , Yasuhiro Nihei , Takeshi Ueda , Masahiro Itoh , Shu Takahashi , Takeshi Ogawa , Hiroaki Tanaka , Shiori Ohta
发明人： Koji Masuda , Yasuhiro Nihei , Takeshi Ueda , Masahiro Itoh , Shu Takahashi , Takeshi Ogawa , Hiroaki Tanaka , Shiori Ohta
摘要： An input operation detection device to detect input operation input to an image includes a first and second imaging parts and a processor to detect input operation based on data acquired by the first and second imaging parts. The image is divided into first and second images. The optical axes of imaging optical systems of the first and second imaging parts intersect with the image at points on the same side as installation position sides of the corresponding imaging parts with respect to the center of the corresponding images.
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公开(公告)号：US20180136330A1
公开(公告)日：2018-05-17
申请号：US15808968
申请日：2017-11-10
申请人： Yasuhiro Nihei , Toshishige Fujii , Takeshi Ogawa , Hiroaki Tanaka , Shu Takahashi , Yoichi Ichikawa , Masahiro Itoh
发明人： Yasuhiro Nihei , Toshishige Fujii , Takeshi Ogawa , Hiroaki Tanaka , Shu Takahashi , Yoichi Ichikawa , Masahiro Itoh
摘要： An distance measurement apparatus includes a light source to emit irradiation light, circuitry to output, to the light source, a first current that changes in accordance of light-emission timing information defining at least turn-on timing of the light source, and a second current that does not change in accordance of the light-emission timing information, a sensor to detect reflection light reflected from an object irradiated with the irradiation light emitted from the light source. The circuitry calculates a distance to the object based on a detection amount of the reflection light detected by the sensor.
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公开(公告)号：US20100027079A1
公开(公告)日：2010-02-04
申请号：US12503206
申请日：2009-07-15
申请人： Kiichiro Nishina , Yasuo Sakurai , Nobuaki Ono , Masahiro Itoh
发明人： Kiichiro Nishina , Yasuo Sakurai , Nobuaki Ono , Masahiro Itoh
IPC分类号： H04N1/04
CPC分类号： H04N1/0318 , H04N1/0285 , H04N1/02865 , H04N2201/03112 , H04N2201/0312 , H04N2201/03137 , H04N2201/03141 , H04N2201/03145
摘要： An optical reader which reads image information on an original document by moving to the original document includes an illumination unit having at least one light source arranged on a substrate and illuminating the original document, a plurality of mirrors reflecting reflection light from the original document, a focusing lens focusing the reflection light from the original document reflected by the mirrors, and a photoelectric conversion element arranged in a focusing position of the focusing lens, a normal direction of an emission surface of the light source and a normal direction of a light-receiving surface of the photoelectric conversion element are the same direction, an original document reading position is set near an end portion of the optical reader in the normal direction.
摘要翻译： 通过移动到原始文档来读取原始文档上的图像信息的光学读取器包括具有布置在基板上的至少一个光源并照亮原稿的照明单元，反射来自原稿的反射光的多个反射镜， 聚焦透镜聚焦来自反射镜反射的原始文件的反射光，以及布置在聚焦透镜的聚焦位置的光电转换元件，光源的发射表面的法线方向和光接收的法线方向 光电转换元件的表面是相同的方向，原稿读取位置被设置在光学读取器的沿法线方向的端部附近。
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