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公开(公告)号：US20230078828A1
公开(公告)日：2023-03-16
申请号：US17913089
申请日：2020-03-31
Inventor： Yutaka HIROSE , Yusuke YUASA , Shigeru SAITOU , Shinzo KOYAMA , Akihiro ODAGAWA , Masayuki SAWADA
Abstract: An information processing system includes an object information generator and an output unit. The object information generator generates object information. A piece of the object information indicates a feature of an object present in a target distance section. The target distance section is one selected from a plurality of distance sections defined by dividing the distance measurable range in accordance with differences in elapsed times from a point of time when a light emitting unit emits a measuring light. The object information generator generates the piece of the object information based on a distance section signal associated with the target distance section. The output unit outputs the object information.
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公开(公告)号：US20220003875A1
公开(公告)日：2022-01-06
申请号：US17480458
申请日：2021-09-21
Inventor： Manabu USUDA , Shinzo KOYAMA , Akihiro ODAGAWA
IPC: G01S17/894 , G01S17/10
Abstract: A distance measurement imaging system includes a first acquisition unit that acquires first 2D data from an imaging unit, a second acquisition unit that acquires first 3D data from a distance measurement unit, a third acquisition unit that acquires second 2D data and second 3D data from a detection unit, and a computation unit. The imaging unit acquires a first 2D image of a target space. The distance measurement unit acquires a first 3D image of the target space. The detection unit acquires a second 2D image and a second 3D image of the target space with a coaxial optical system. The computation unit executes a processing for making an association between the first 2D data and the second 2D data and a processing for making an association between the first 3D data and the second 3D data.
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公开(公告)号：US20250148742A1
公开(公告)日：2025-05-08
申请号：US18838119
申请日：2023-03-23
Inventor： Masato TAKEMOTO , Akihiro ODAGAWA , Shinzo KOYAMA , Shigeru SAITOU
Abstract: An image processing method includes: first processing of acquiring a range gate image using a range gate imaging device that captures an image of a set distance range for a predetermined capture area; second processing of searching for a detection target in the range gate image using a search window having a size corresponding to a capture distance from the range gate imaging device to the set distance range; and third processing of synthesizing, when a window region satisfying a predetermined condition is detected in the range gate image in the second processing, object information included in the window region and a grayscale image acquired using a grayscale imaging device that captures a grayscale image of the predetermined capture area and outputting the result.
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公开(公告)号：US20220011437A1
公开(公告)日：2022-01-13
申请号：US17486863
申请日：2021-09-27
Inventor： Shinzo KOYAMA , Yutaka HIROSE , Toru OKINO , Shigeru SAITOU , Motonori ISHII , Akihiro ODAGAWA
IPC: G01S17/894 , G01S17/36 , G01S7/4865
Abstract: A distance measuring device includes a control unit and a measuring unit. The control unit controls a photodetector unit. The photodetector unit includes a photoelectric transducer element and an output unit. The photoelectric transducer element generates electrical charges on receiving light reflected from a target as a part of measuring light emitted from a light-emitting unit. The output unit outputs an electrical signal representing a quantity of the electrical charges generated by the photoelectric transducer element. The measuring unit calculates, in accordance with the electrical signal, a distance to the target within a measurable range. The control unit sets, in each of a plurality of intervals that form the measurable range, a conversion ratio of the quantity of the electrical charges generated by the photoelectric transducer element to a quantity of the light received by the photoelectric transducer element.
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公开(公告)号：US20220003864A1
公开(公告)日：2022-01-06
申请号：US17481233
申请日：2021-09-21
Inventor： Yugo Nose , Shinzo KOYAMA , Akihiro ODAGAWA , Shigetaka KASUGA , Manabu USUDA
IPC: G01S17/08 , H01L31/107 , G01S7/48
Abstract: A distance measuring method according to the present disclosure includes: measuring, in an environment where background light is applied to an object, the illuminance of the background light; setting a distance measuring range based on the illuminance of the background light; setting, based on the distance measuring range set, an image capturing condition for an image capturer including a plurality of pixels each including an avalanche photo diode (APD) and an emission condition in which light is emitted from a light source; and measuring a distance to the object by controlling the image capturer and the light source based on the image capturing condition and the emission condition that are set.
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Patent Agency Ranking
公开(公告)号：US20210368119A1
公开(公告)日：2021-11-25
申请号：US17274133
申请日：2019-09-05
Inventor： Yutaka HIROSE , Akihiro ODAGAWA , Shinzo KOYAMA
IPC: H04N5/378 , H04N5/3745 , H04N5/351
Abstract: A solid-state image sensor capable of detecting a photon and having smaller circuit scale is provided. The solid-state image sensor includes a pixel array including a plurality of pixel cells, a pixel driving circuit configured to drive the plurality of pixel cells, a readout circuit, and a plurality of readout wires corresponding to respective columns of the pixel cell. Each of the plurality of pixel cells includes an avalanche photodiode configured to detect a photon by avalanche multiplication occurring when one photon enters, and a transfer transistor configured to transfer a detection result of the photon to the corresponding readout wire. The readout circuit determines whether a photon is detected or not, and outputs a determination result.
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7.发明公开公开(公告)号：US20230386058A1
公开(公告)日：2023-11-30
申请号：US18448712
申请日：2023-08-11
Inventor： Yusuke YUASA , Shigeru SAITOU , Yugo NOSE , Shota YAMADA , Shinzo KOYAMA , Masayuki SAWADA , Yutaka HIROSE , Akihiro ODAGAWA
CPC classification number: G06T7/55 , G06T7/11 , G06T7/73 , G06T11/00 , G06T2207/20132 , G06T2207/10028
Abstract: In an object information generation system, an imaging unit is configured to capture a plurality of segment images respectively corresponding to a plurality of distance segments dividing a target space. In a signal processor, the object region extraction unit extracts, from a plurality of segment images, an object region that is a pixel region including an image of the object. An object information generation unit determines, for the object region, a window in which calculation-target pixels are cut out, and generates distance information of the object by calculation using information of a plurality of pixels in the window for two or more segment images.
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公开(公告)号：US20230053841A1
公开(公告)日：2023-02-23
申请号：US17982104
申请日：2022-11-07
Inventor： Yusuke YUASA , Shigeru SAITOU , Shinzo KOYAMA , Yutaka HIROSE , Akihiro ODAGAWA
IPC: G01S17/894 , G01S7/4865
Abstract: An object detection system includes a light emitter, an optical sensor, a controller, and a signal processor. The controller controls the light emitter and the optical sensor to cause range segment signals to be outputted from the optical sensor for corresponding range segments. The signal processor includes: a target object information generator that includes a plurality of generators (a first generator through a fifth generator) capable of operating in parallel and generates items of target object information indicating features of target objects for the range segments; and storage that stores the items of target object information. The target object information generator compares a past one of the items of target object information stored in the storage with a feature of a current one of the target objects detected by the optical sensor to generate a corresponding one of the items of target object information.
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公开(公告)号：US20210166410A1
公开(公告)日：2021-06-03
申请号：US17171907
申请日：2021-02-09
Inventor： Shigeru SAITOU , Akihiro ODAGAWA , Shinzo Koyama , Masato Takemoto
Abstract: A distance measurement device includes: a light source configured to emit visible illumination light; an imaging element configured to receive reflected light of the illumination light from an object; and a signal processing circuit configured to reduce the emission of the illumination light in a predetermined period, detect a timing when the reception of the reflected light at the imaging element is reduced due to the reduction of the illumination light, and measure a distance to the object on the basis of the detected timing.
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公开(公告)号：US20200149797A1
公开(公告)日：2020-05-14
申请号：US16740232
申请日：2020-01-10
Inventor： Seiji YAMAHIRA , Yuta MORIURA , Akihiro ODAGAWA , Kazuya NIKI , Shinobu MASUDA , Yui SAWADA , Keiji NOINE
Abstract: A food management system that manages food items in a refrigerator includes: a pressure-sensitive sensor that acquires information including shapes, weights, and positions of the food items; a comparator that performs comparison of the information acquired at different times; and an identifier that identifies at least one of (i) fluctuations in the number of food items or (ii) presence or absence of the food items.
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