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公开(公告)号：US20230211791A1
公开(公告)日：2023-07-06
申请号：US17928015
申请日：2020-07-09
Applicant: Mitsubishi Electric Corporation
Inventor： Hirotaka SAKAMOTO , Toshiyuki HATTA , Shintaro WATANABE
CPC classification number: B60W40/09 , G06V20/597 , G06V40/28 , B60W2540/26 , B60W2540/221 , B60W2540/223
Abstract: Included are: a captured image acquiring unit to acquire a captured image obtained by imaging an occupant; a temperature image acquiring unit to acquire a temperature image indicating a temperature of a surface of a body of the occupant measured in a non-contact manner; a motion detection unit to detect a motion of the occupant on the basis of the captured image; a temperature detection unit to detect a temperature of a hand of the occupant on the basis of the temperature image; and an awakening level estimating unit to estimate an awakening level of the occupant on the basis of the motion of the occupant detected by the motion detection unit and the temperature of the hand of the occupant detected by the temperature detection unit.
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公开(公告)号：US20160318145A1
公开(公告)日：2016-11-03
申请号：US15108604
申请日：2014-01-24
Applicant: MITSUBISHI ELECTRIC CORPORATION
Inventor： Ryosuke KAWANISHI , Yukiyasu DOMAE , Shintaro WATANABE , Nobuyuki TAKAHASHI
CPC classification number: B23Q17/2466 , B23Q3/15546 , B23Q3/15724 , B23Q17/2409 , B23Q17/2461 , G01B11/08 , G01B11/24 , G06T7/0004 , G06T2207/30164 , Y10T483/12 , Y10T483/136
Abstract: A tool shape measurement device includes: a contour detection unit that detects a tool contour from an image of a rotating tool that is taken; an axis direction calculation unit that calculates a tool axis direction that is an axis direction of the rotating tool on the basis of the tool contour; a tool diameter measurement unit that calculates an apparent tool diameter of the rotating tool on an imaging surface on the basis of a calibrated positional and postural relationship between an imaging device and the rotating tool, the tool axis direction, and the tool contour; and a tool diameter correction unit that calculates a distance between the imaging device and the rotating tool using the tool axis direction, and corrects the apparent tool diameter to an actual tool diameter by correcting distortion in the tool contour on the basis of the distance.
Abstract translation: 一种刀具形状测量装置，包括：轮廓检测单元，其从所拍摄的旋转刀具的图像中检测刀具轮廓; 轴方向计算单元，其基于所述刀具轮廓计算作为所述旋转刀具的轴线方向的刀具轴方向; 刀具直径测量单元，其基于成像装置和旋转工具之间的校准的位置和姿态关系，工具轴线方向和工具轮廓来计算成像表面上的旋转工具的视在工具直径; 以及刀具直径校正单元，其使用刀具轴方向计算成像装置和旋转刀具之间的距离，并且通过基于该距离校正刀具轮廓的变形，将表观刀具直径校正为实际刀具直径。
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公开(公告)号：US20230406322A1
公开(公告)日：2023-12-21
申请号：US18031072
申请日：2020-12-28
Applicant: Mitsubishi Electric Corporation
Inventor： Atsushi MATSUMOTO , Shintaro WATANABE , Yumiko OKAMOTO , Genta YOSHIMURA
CPC classification number: B60W40/08 , B60W2540/229 , B60W2540/043 , G06N20/00
Abstract: An awakening level estimation device includes: processing circuitry configured to acquire two or more types of occupant state information different from each other, the occupant state information indicating a current state value of an occupant; acquire occupant basic state information indicating a basic state value of the occupant when the occupant is in an awakening state; acquire difference information indicating a difference between the current state value and the basic state value, estimate an awakening level of the occupant on the basis of the two or more types of difference information, and input the two or more types of difference information to a learned model corresponding to a leaning result by machine learning, and generating and outputting awakening level information indicating an awakening level on the basis of an estimation result output from the leaned model.
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公开(公告)号：US20230043992A1
公开(公告)日：2023-02-09
申请号：US17790678
申请日：2020-01-08
Applicant: Mitsubishi Electric Corporation
Inventor： Atsushi MATSUMOTO , Ryosuke TORAMA , Shintaro WATANABE , Ryohei MURACHI
Abstract: A pupil detection device includes an eye area image obtaining unit that obtains image data representing an eye area image in a captured image obtained by a camera; a luminance gradient calculating unit that calculates luminance gradient vectors corresponding to respective individual image units in the eye area image, using the image data; an evaluation value calculating unit that calculates evaluation values corresponding to the respective individual image units, using the luminance gradient vectors; and a pupil location detecting unit that detects a pupil location in the eye area image, using the evaluation values.
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5.发明申请公开(公告)号：US20210217193A1
公开(公告)日：2021-07-15
申请号：US16967670
申请日：2018-02-26
Applicant: Mitsubishi Electric Corporation
Inventor： Yusuke NAKAMATSU , Asako SHIGETA , Shintaro WATANABE , Ryosuke TORAMA , Takashi HIRANO
Abstract: A three-dimensional position estimation device includes: a feature point extracting unit for detecting an area corresponding to the face of an occupant in an image captured by a camera for imaging a vehicle interior and extracting a plurality of feature points in the detected area; an inter-feature-point distance calculating unit for calculating a first inter-feature-point distance that is a distance between distance-calculating feature points among the plurality of feature points; a face direction detecting unit for detecting the face direction of the occupant; a head position angle calculating unit for calculating a head position angle indicating the position of the head of the occupant with respect to an imaging axis of the camera; an inter-feature-point distance correcting unit for correcting the first inter-feature-point distance to a second inter-feature-point distance that is a distance between distance-calculating feature points in a state where portions of the head corresponding to the distance-calculating feature points are arranged along a plane parallel to an imaging plane of the camera using a result detected by the face direction detecting unit and the head position angle; and a three-dimensional position estimating unit for estimating the three-dimensional position of the head using the head position angle, the second inter-feature-point distance, and a reference inter-feature-point distance.
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Patent Agency Ranking
公开(公告)号：US20200265718A1
公开(公告)日：2020-08-20
申请号：US16097434
申请日：2017-03-23
Applicant: Mitsubishi Electric Corporation
Inventor： Shintaro WATANABE , Shoich SHIMIZU , Junji HORI , Wataru TSUJITA
IPC: G08G1/16 , B60T7/12 , B60Q9/00 , G06K9/00 , G06T7/246 , G06K9/20 , G06T7/521 , G06T7/73 , H04N5/225
Abstract: A first light projector projects first slit light that spreads in the width direction of a vehicle in a direction other than a direction parallel to a contact ground surface. A second light projector projects second slit light that spreads in the width direction of the vehicle in a direction parallel to the contact ground surface. An obstacle detection unit detects an obstacle using a captured image of an area surrounding the vehicle where the first slit light and the second slit light are projected.
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7.发明公开公开(公告)号：US20240122513A1
公开(公告)日：2024-04-18
申请号：US18277411
申请日：2021-04-06
Applicant: Mitsubishi Electric Corporation
Inventor： Natsuki TAHARA , Takashi HIRANO , Shintaro WATANABE , Atsushi MATSUMOTO
CPC classification number: A61B5/18 , G06T7/20 , G06V40/174
Abstract: An awakening effort motion estimation device includes processing circuitry configured to acquire a captured image obtained by imaging an occupant's face in a vehicle; detect, on a basis of the captured image having been acquired, two reference points for estimating a motion of the occupant's mouth, the two reference points including one point on a mask worn by the occupant, and the other point being a point based on a feature point of the occupant's face or a point different from the one point on the mask in the captured image; calculate a reference point distance between the detected two reference points; and estimate whether or not the occupant is performing an awakening effort motion by moving his or her mouth depending on whether or not the calculated reference point distance satisfies an awakening effort estimating condition.
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8.发明申请公开(公告)号：US20170221224A1
公开(公告)日：2017-08-03
申请号：US15120682
申请日：2014-07-31
Applicant: MITSUBISHI ELECTRIC CORPORATION
Inventor： Yukiyasu DOMAE , Makito SEKI , Shintaro WATANABE , Satoru SOFUKU , Yutaka EZAKI
CPC classification number: G06T7/70 , G01B11/002 , G06K9/4604 , G06T7/74 , G06T2207/30204 , H04N5/907 , H04N7/183
Abstract: A storage device stores capturing conditions containing a viewpoint position and a shooting direction of the camera, model data containing a shape of a segmented mirror, and feature point data representing a positional relationship among a viewpoint position and feature points. A camera captures the segmented mirror having a reflective surface to obtain a captured image containing at least a part of the reflective surface. A marker object has feature points, and is fixed at a predetermined position with respect to the camera. A feature-point extracting unit extracts multiple feature points from a captured image when the feature points are reflected in the reflective surface, and determines positions of the feature points within the captured image. A position measuring unit calculates a position of the segmented mirror, based on the capturing conditions, the model data, the feature point data, and the positions of the feature points within the captured image.
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公开(公告)号：US20230089508A1
公开(公告)日：2023-03-23
申请号：US17799797
申请日：2020-04-06
Applicant: Mitsubishi Electric Corporation
Inventor： Chihiro KISHI , Hirotaka SAKAMOTO , Atsushi MATSUMOTO , Shintaro WATANABE , Jun ISHII
Abstract: A biological information acquisition device includes a detection-value acquisition unit to acquire a detection value from a non-contact biometric sensor, a vital measurement unit to measure a vital sign of a target person (TP) using the detection value, an image-data acquisition unit to acquire image data indicating an image captured by a camera, an image processing unit to perform at least one of a state estimation process of estimating a state of the target person, an attribute estimation process of estimating an attribute of the target person, or a personal identification process of identifying the target person by performing image processing on the image captured including the target person, and a parameter setting unit to set a parameter in measuring the vital sign in accordance with a result of the image processing.
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10.发明申请公开(公告)号：US20210034887A1
公开(公告)日：2021-02-04
申请号：US16965737
申请日：2018-02-19
Applicant: Mitsubishi Electric Corporation
Inventor： Natsuki TAHARA , Shintaro WATANABE , Masanobu OSAWA
Abstract: A passenger state detection device (100) includes: a correction parameter setting unit (30) for setting a correction parameter for a captured image captured by a camera (2) for capturing a vehicle interior for each of detection items in passenger state detecting process including the multiple detection items using at least one of a feature amount in a face part area that corresponds to a passenger's face part in the captured image or a feature amount in a structure area that corresponds to a structure in the vehicle interior in the captured image; and an image correcting unit (40) for correcting the captured image for each of the detection items in the passenger state detecting process using the correction parameter set by the correction parameter setting unit (30).
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