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公开(公告)号：US12253601B2
公开(公告)日：2025-03-18
申请号：US17017719
申请日：2020-09-11
Applicant: Topcon Corporation
Inventor： Tadayuki Ito , Yoshihiro Nishi , Motohiro Miyajima
Abstract: A three-dimensional survey apparatus includes a collimating ranging unit, a scanner unit, and a control calculation portion. The control calculation portion executes control to acquire, based on a survey result of the collimating ranging unit, three-dimensional data related to a characteristic portion of the measurement object which is present between a plurality of pieces of three-dimensional data that are included in point cloud data having been acquired by the scanner unit and of which the three-dimensional data has not been acquired by the scanner unit, and to add the three-dimensional data related to the characteristic portion of the measurement object having been acquired based on a survey result of the collimating ranging unit to the point cloud data having been acquired by the scanner unit.
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公开(公告)号：US11551411B2
公开(公告)日：2023-01-10
申请号：US17445399
申请日：2021-08-18
Applicant: Topcon Corporation
Inventor： Tadayuki Ito , Takeshi Sasaki
IPC: G06T17/00
Abstract: Correspondence relationships between two laser scanning point clouds are easily determined with high accuracy. A data processor includes a laser scanning point cloud acquiring unit and a laser scanning point cloud correspondence relationship determining unit. The laser scanning point cloud acquiring unit acquires a first laser scanning point cloud that is obtained in a first time period and a second laser scanning point cloud that is obtained in a second time period. The laser scanning point cloud correspondence relationship determining unit determines correspondence relationships between the first laser scanning point cloud and the second laser scanning point cloud on the basis of a laser scanning point cloud relating to a fixed object. The fixed object is contained in both the first laser scanning point cloud and the second laser scanning point cloud and does not change between the first time period and the second time period.
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3.发明授权公开(公告)号：US10578430B2
公开(公告)日：2020-03-03
申请号：US15423746
申请日：2017-02-03
Applicant: TOPCON CORPORATION
Inventor： You Sasaki , Kazuhiro Ogawa , Tadayuki Ito
Abstract: To carry out evaluation of a road surface property easily and in a short period of time without being costly. Measurement data of a road surface measured for a predetermined road width along a path of a road to be measured is acquired; a unit area having a preset length dimension along the path in the road width is set along the path; a model plane in the unit area is set based on the measurement data at each point in the unit area; point group data is generated from a spaced amount of the model plane and each point in the unit area, visualize and display the spaced amount in the path, and display a result of evaluation obtained through statistical processing with the path shown on a map.
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公开(公告)号：US20170309050A1
公开(公告)日：2017-10-26
申请号：US15423817
申请日：2017-02-03
Applicant: TOPCON CORPORATION
Inventor： You Sasaki , Tadayuki Ito
CPC classification number: G06T11/60 , G06K9/00791 , G06K9/00798 , G06K9/4642 , G06K9/6212 , G06T11/001
Abstract: To efficiently and effectively display a plurality of pieces of information that can be acquired from measurement data. Measurement data on a spaced amount from a measurement reference plane at each point of a road measured for a predetermined road width along a measurement path of a road to be measured and road image data including the road acquired along the measurement path are acquired; a unit area to become a unit of processing is set based on the measurement data; a model plane in the unit area is set from the measurement data in the unit area; point group data indicating a spaced amount from the model plane at each point of the unit area is generated; spaced amount display data displaying shading or hue corresponding to a spaced amount specified with the point group data in a contour of the road is generated; and a road image based on road image data corresponding to a specified area of the road and a spaced amount image based on the spaced amount display data corresponding to the road image are simultaneously displayed.
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公开(公告)号：US11789151B2
公开(公告)日：2023-10-17
申请号：US17985555
申请日：2022-11-11
Applicant: TOPCON CORPORATION
Inventor： Satoshi Yasutomi , Takahiro Komeichi , Tadayuki Ito
Abstract: A surveying system includes a target unit having a reflection target and an encoder pattern showing an angle of the target unit; a scanner configured to acquire three-dimensional point cloud data, measured coordinates of the target, and optically read the encoder pattern to acquire an encoder pattern read angle; and a leveling base configured to selectively allow either of the target unit and the scanner to be removably mounted. The scanner calculates a direction angle of the leveling base based on the encoder pattern read angle and the offset angle of the target unit, calculates coordinates of an installation point of the target unit based on the measured coordinates of the target and the direction angle of the target, and calculates a direction angle of the scanner based on the offset angle of the scanner and the direction angle of the leveling base on which the scanner is mounted.
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Patent Agency Ranking
公开(公告)号：US10514254B2
公开(公告)日：2019-12-24
申请号：US15423785
申请日：2017-02-03
Applicant: TOPCON CORPORATION
Inventor： You Sasaki , Tadayuki Ito
Abstract: To rapidly and reliably measure a road surface property using measurement results and determination results of a road surface in the past. A vehicle mounted with a road surface property acquiring device is guided to a specified point on a road and measurement is carried out. The past road surface data on a past road surface property is acquired, a present position of the vehicle is acquired, and a past road surface property image representing a feature amount of the road surface property in a range including the present position created based on the past road surface data is displayed; and the vehicle is guided from the present position to a specified area while measuring a state of the road surface with the road surface property acquiring device.
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公开(公告)号：US10176615B2
公开(公告)日：2019-01-08
申请号：US15377187
申请日：2016-12-13
Applicant: TOPCON CORPORATION
Inventor： Tadayuki Ito , You Sasaki , Takahiro Komeichi , Naoki Morikawa
Abstract: Problems occurring due to a difference in point of view between cameras in compositing a panoramic image by using multiple images taken by the cameras are solved. An image processing device includes an image data receiving unit 101, a panoramic image generating unit 102, a designation receiving unit 103, and a single photographic image selecting unit 105. The image data receiving unit 101 receives data of a first still image and a second still image. The panoramic image generating unit 102 projects the first still image and the second still image on a projection sphere to generate a composited image. The designation receiving unit 103 receives designation of a specific position in the panoramic image. The single photographic image selecting unit 105 selects one of the first still image and the second still image, which contains the designated position received by the designation receiving unit 103.
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公开(公告)号：US11692823B2
公开(公告)日：2023-07-04
申请号：US17017715
申请日：2020-09-11
Applicant: Topcon Corporation
Inventor： Tadayuki Ito , Kenichiro Yoshino , Yoshihiro Nishi , Motohiro Miyajima
CPC classification number: G01C15/002 , G02B26/10 , G02B27/30
Abstract: To provide a three-dimensional survey apparatus, a three-dimensional survey method, and a three-dimensional survey program which are capable of suppressing an occurrence of a data-deficient part. A three-dimensional survey apparatus includes a collimating ranging unit, a scanner unit, and a control calculation portion. If there is a data-deficient part where three-dimensional data is not acquired among a measurement object when the scanner unit acquires point cloud data, the control calculation portion executes control to replenish the three-dimensional data related to the data-deficient part having been acquired by the collimating ranging unit to the point cloud data having been acquired by the scanner unit.
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公开(公告)号：US11385337B2
公开(公告)日：2022-07-12
申请号：US15850212
申请日：2017-12-21
Applicant: Topcon Corporation
Inventor： You Sasaki , Tadayuki Ito
Abstract: A method for calibrating unevenness of a plurality of measuring elements in an apparatus for evaluating road surface property having a plurality of measuring elements repeats steps of computing separation quantities from a calibration reference plane on a reference area regarding all measuring elements; determining a measuring element where the separation quantity is maximum from among all the measuring element to calibrate the measuring element such that a difference between point cloud data produced from a measurement value of the measuring element where the separation quantity is maximum and the calibration reference plane becomes equal or less than a predetermined value, producing a new calibration reference plane from the measurement values of the measuring elements including the calibrated measuring element, until RMS of point cloud data does not change.
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公开(公告)号：US10382747B2
公开(公告)日：2019-08-13
申请号：US15712288
申请日：2017-09-22
Applicant: Topcon Corporation
Inventor： Naoki Morikawa , Tadayuki Ito
IPC: H04N13/351 , G06T19/00 , H04N13/324 , H04N13/398
Abstract: An image processing apparatus is provided to display an image on a screen, the image facilitating visual ascertainment of relationships between each of a plurality of items of point cloud data and point cloud data arising from combining the plurality of items of point cloud data. The image processing apparatus includes a display controlling section configured to 3D display combination point cloud data combining a plurality of items of point cloud data obtained from a plurality of viewpoints and allow 3D display of one item out of the plurality of items of point cloud data obtained from the plurality of viewpoints.
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