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公开(公告)号：US20190037115A1
公开(公告)日：2019-01-31
申请号：US16135308
申请日：2018-09-19
Inventor： SHUNSUKE YASUGI , HIROYA KUSAKA , TARO IMAGAWA , AKIHIRO NODA
Abstract: A lighting unit includes a plurality of light sources that respectively emit plural rays of illumination light. An imaging unit that simultaneously images plural rays of reflected light obtained by the plural rays of illumination light being reflected by a subject so as to obtain information about a plurality of colors, and generates a captured image including the information about the plurality of colors. A memory stores sensitivity information items that correspond to the plurality of light sources respectively. An arithmetic unit performs an arithmetic operation to generate a plurality of separated images from the captured image by using the sensitivity information items. The plurality of separated images correspond to the plurality of light sources respectively, and each of the plurality of separated images only includes information about a corresponding one of the plural rays of reflected light.
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公开(公告)号：US20190212223A1
公开(公告)日：2019-07-11
申请号：US16357928
申请日：2019-03-19
Inventor： HIROYA KUSAKA , TARO IMAGAWA , AKIHIRO NODA
CPC classification number: G01M5/0033 , E01C23/01 , G01G9/00 , G01G19/022 , G01M5/0041 , G01M99/00
Abstract: A monitoring system includes an axle weight measurer and a state estimator. The axle weight measurer detects a surface displacement of a road from a first captured image obtained by imaging the road when a vehicle passes at a predetermined spot of a structure having the road that the vehicle passes, and calculates an axle weight of the vehicle from the surface displacement and a displacement coefficient of the road. The state estimator generates an axle weight distribution from the axle weight calculated by the axle weight measurer, and estimates a deterioration degree of the structure, using the axle weight distribution.
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公开(公告)号：US20160259034A1
公开(公告)日：2016-09-08
申请号：US15046487
申请日：2016-02-18
Inventor： TARO IMAGAWA
CPC classification number: G01S5/16 , G01B11/2513 , G01S7/4808 , G01S17/023 , G01S17/46 , G06K9/00798 , G06K9/00805 , G06K9/2036 , G06K9/4671 , G06K9/6201 , H04N5/2256
Abstract: The position estimation device that estimates a position of a moving object on a road surface includes an illuminator, an imager, and a controller. The illuminator illuminates the road surface. The imager has an optical axis non-parallel to an optical axis of the illuminator, and images the illuminated road surface. The controller acquires road surface information including a position and a corresponding feature of a road surface to the position. The controller determines a matching region from a road surface image captured by the imager, extracts a feature of the road surface from the road surface image in the matching region, and estimates the position of the moving object by performing matching processing between the extracted feature of the road surface and the road surface information. Furthermore, the controller determines validity of the matching region, and performs the matching processing when determining the matching region is valid.
Abstract translation: 估计移动物体在路面上的位置的位置估计装置包括照明器，成像器和控制器。 照明器照亮路面。 成像器具有不平行于照明器的光轴的光轴，并对照明的路面进行成像。 控制器获取包括路面的位置和对应特征的路面信息到该位置。 所述控制器从所述摄像机拍摄的路面图像中确定匹配区域，从所述匹配区域中的路面图像中提取所述路面的特征，并且通过在所述匹配区域的提取特征之间进行匹配处理来估计所述移动物体的位置 路面和路面信息。 此外，控制器确定匹配区域的有效性，并且当确定匹配区域有效时执行匹配处理。
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公开(公告)号：US20190242693A1
公开(公告)日：2019-08-08
申请号：US16384987
申请日：2019-04-16
Inventor： AKIHIRO NODA , HIROYA KUSAKA , TARO IMAGAWA
CPC classification number: G01B11/16 , G01G9/00 , G01G19/02 , G01G19/022 , G01G19/03 , G01G23/01 , G06K9/00785 , G06T7/74 , G06T2207/30184 , G06T2207/30248
Abstract: An axle-load measuring apparatus measures an axle load of a vehicle by using a captured image where a road and the vehicle on the road are imaged, and the axle-load measuring apparatus includes a displacement calculator, a correction information obtaining unit, and an axle-load calculator. The displacement calculator detects a displacement of the road by using the captured image. The displacement is caused by receiving the axle load. The correction information obtaining unit obtains correction information. An axle-load calculator calculates the axle load by using the displacement and the correction information.
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公开(公告)号：US20180180534A1
公开(公告)日：2018-06-28
申请号：US15901506
申请日：2018-02-21
Inventor： AKIHIRO NODA , HIROYA KUSAKA , TARO IMAGAWA , SHUNSUKE YASUGI
CPC classification number: G01N21/27 , G01N21/251 , G01N21/474 , G01N21/84 , G01N33/02 , G01N2021/8466 , G01N2021/8845 , G01N2021/8854 , G01N2021/8887 , G06T7/0004 , G06T7/13 , G06T7/90 , G06T2207/10016 , G06T2207/10024 , G06T2207/10152 , G06T2207/30128 , H04N5/2256 , H04N5/232 , H04N5/2354 , H04N9/045
Abstract: An appearance inspection apparatus includes a lighting unit, an imaging unit, a memory, an operating unit, a detecting unit, and a determination unit. The lighting unit has a plurality of light sources emitting single-wavelength light with relative spectral distributions different from one another, and substantially simultaneously irradiates a photographic subject with illumination light. The imaging unit captures light discharged by the photographic subject. The memory stores information about sensitivity characteristics of the imaging unit for each color. The operating unit separates an image into a first, a second, and a third image, for each component of the single-wavelength light, using the information. The detecting detects information about a specific area of the photographic subject using the first and the second image. The determination unit extracts an amount of image characteristics corresponding to a characteristic part present in the specific area using the first and the third image.
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Patent Agency Ranking
公开(公告)号：US20200209049A1
公开(公告)日：2020-07-02
申请号：US16812246
申请日：2020-03-06
Inventor： AKIHIRO NODA , TARO IMAGAWA , HIROYA KUSAKA
Abstract: A double tire determination device includes an image input unit and a determination unit. The image input unit receives input of a captured image including a tire mounted on a vehicle. The determination unit determines whether the tire is a double tire, based on a ratio between a first area and a second area. The first area is an area of a first wheel region that is a part of a region of a wheel holding the tire and that is located on a side in a first direction with respect to a position of a rotation center of the tire. The second area is an area of a second wheel region that is a part of the region of the wheel holding the tire and that is located on a side in a second direction, which is opposite to the first direction, with respect to the position of the rotation center.
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公开(公告)号：US20190226904A1
公开(公告)日：2019-07-25
申请号：US16372499
申请日：2019-04-02
Inventor： TARO IMAGAWA , AKIHIRO NODA , HIROYA KUSAKA
Abstract: A load meter includes a detector, a storage unit, and a load calculator. The detector detects, by using a captured image obtained by capturing a road and a vehicle present on the road, a displacement amount in the captured image, the displacement amount corresponding to displacement caused on the road by application of a load of the vehicle. The storage unit stores information indicating a relation between the load and the displacement amount. The load calculator calculates the load based on the displacement amount and the information.
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公开(公告)号：US20170124685A1
公开(公告)日：2017-05-04
申请号：US15357785
申请日：2016-11-21
Inventor： HITOSHI YAMADA , TARO IMAGAWA
CPC classification number: G06T5/002 , G06T5/003 , G06T5/40 , G06T5/50 , G06T7/13 , G06T7/174 , G06T2207/10016 , G06T2207/20216 , G06T2207/30232 , H04N5/21 , H04N5/225 , H04N5/232
Abstract: Image processing device includes a correction unit and a determination unit. The correction unit performs correction for suppressing image fluctuations on each of a plurality of input images using a correction parameter and outputs results of the correction as a plurality of corrected images. The determination unit (i) calculates a first distribution and a second distribution. The first distribution represents a frequency distribution of edge angles in a given input image of the plurality of input images. The second distribution represents a frequency distribution of edge angles in a given corrected image that is the given input image corrected by the correction unit and is output. The determination unit (ii) performs a first determination that determines presence or absence of fluctuations in the given input image using the first and the second distributions calculated, and (iii) performs updating of the correction parameter using results of the first determination.
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公开(公告)号：US20170064171A1
公开(公告)日：2017-03-02
申请号：US15351765
申请日：2016-11-15
Inventor： TARO IMAGAWA
CPC classification number: H04N5/2256 , G03B15/05 , H04N5/217 , H04N5/2351 , H04N5/2353 , H04N5/2354 , H04N5/3532
Abstract: The illumination apparatus according to the present disclosure emits illumination light to an object which is to be captured by an imaging apparatus that captures an imaging area for every predetermined capturing unit. The illumination apparatus includes a controller that acquires imaging information including a scanning timing from the imaging apparatus to calculate an imaging range of the imaging apparatus at each the scanning timing, determines an illumination range at each the scanning timing using a distance to the imaging apparatus from the object present within the imaging range and a positional relation between the imaging apparatus and the illumination apparatus, and controls emission of the illumination light to the determined illumination range in synchronization with the scanning timing.
Abstract translation: 根据本公开的照明装置向被捕获每个预定捕获单元的成像区域的成像装置捕获的对象发射照明光。 照明装置包括控制器，其从摄像装置获取包括扫描定时的成像信息，以计算每个扫描定时的成像装置的成像范围，使用距成像装置的距离来确定每个扫描定时处的照明范围 存在于成像范围内的物体和成像装置与照明装置之间的位置关系，并且与扫描正时同步地控制照明光的发射到所确定的照明范围。
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公开(公告)号：US20190265020A1
公开(公告)日：2019-08-29
申请号：US16405602
申请日：2019-05-07
Inventor： AKIHIRO NODA , HIROYA KUSAKA , TARO IMAGAWA
Abstract: A displacement measuring apparatus measures a displacement of a measurement object by using a captured image where the measurement object and a load object are imaged. The displacement is caused by the load object in contact with the measurement object at a contact position. The displacement measuring apparatus includes a position detector, an area setting unit and a displacement calculator. The position detector detects a position, of the load object, in the captured image. The area setting unit sets a position and a size of a detection area in the captured image by using distance information and the position of the load object detected by the position detector, the distance information spatially indicating a distance between the measurement object when the load object is not on the measurement object and an imaging device that generates the captured image. The displacement calculator calculates the displacement by using only an image in the detection area in the captured image.
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