公开(公告)号：US20220099807A1

公开(公告)日：2022-03-31

申请号：US17484072

申请日：2021-09-24

Applicant: TOPCON Corporation

Inventor： Takeshi Sasaki ,  Kaoru Kumagai

IPC: G01S7/481 ,  G01S17/66 ,  G01S17/894

Abstract: A laser scanner comprises a distance measuring module for performing the distance measurement, an optical axis deflector for scanning the pulsed distance measuring light, a tracking module for performing tracking, and a control module for controlling the distance measuring module, the optical axis deflector, and the tracking module. The control module detects a moving object from the point cloud data of the predetermined scan range, sets a local scan area including the object, acquires the local point cloud data of the local scan area, calculates a center of gravity position of the local point cloud data, and make the tracking module to track the object based on the calculated center of gravity position.

公开(公告)号：US10337863B2

公开(公告)日：2019-07-02

申请号：US15913002

申请日：2018-03-06

Applicant: TOPCON CORPORATION

Inventor： Kaoru Kumagai ,  Nobuyuki Nishita ,  Takeshi Sasaki

IPC: G01C11/04 ,  G06T7/70 ,  G01C15/00 ,  G01C11/02 ,  G06T7/246 ,  G06T7/285 ,  B64D47/08 ,  B64C39/02

Abstract: A survey system includes a camera provided on a UAV and taking a plurality of images for photogrammetry. A surveying portion tracking the camera and continuously determining a position of the camera and a relative photographing position calculation portion calculates a relative photographing position of each image based on the plurality of images taken by the camera, and a traveling path calculation portion calculates a traveling path of the UAV from a survey result obtained by the surveying portion. A photogrammetry analysis portion associating a point group of the relative photographing positions calculated by the relative photographing position calculation portion with a flight path calculated by the flight path calculation portion, and generating data for photogrammetry.

公开(公告)号：US10275940B2

公开(公告)日：2019-04-30

申请号：US15677348

申请日：2017-08-15

Applicant: TOPCON CORPORATION

Inventor： Ryosuke Tomizawa ,  Daisuke Sasaki ,  Takeshi Sasaki ,  Nobuyuki Fukaya ,  Tadayuki Ito

IPC: G01C11/02 ,  G06T17/05 ,  G06T7/70

Abstract: A technique enables intuitive understanding of a directional relationship between a photographed image and a wide area image, such as an electronic map. An image processing device includes a display controlling unit that displays a quadrangular-shaped photographic image, which is photographed from an aerial vehicle, displays a mark indicating a photographing position of the quadrangular-shaped photographic image, on a wide area image, and performs highlight display in accordance with a corresponding relationship between a direction of the quadrangular-shaped photographic image and a direction of the mark.

公开(公告)号：US12189070B2

公开(公告)日：2025-01-07

申请号：US17654999

申请日：2022-03-16

Applicant: Topcon Corporation

Inventor： Takeshi Sasaki ,  Norikatsu Shibata ,  Nobuyuki Fukaya

IPC: G01V1/00 ,  G01V1/18 ,  G01V1/24 ,  G06T7/80 ,  G06V10/12

Abstract: A surveying information management system using an information display terminal and a surveying device configured to measure a point cloud in a three-dimensional space includes: a surveying information acquisition unit configured to acquire, from the surveying device, the surveying information including point cloud data associated with position information; an area setting unit configured to set a display area for the point cloud; a segment setting unit configured to divide the display area into predetermined unit segments; a point cloud amount calculation unit configured to calculate a point cloud amount in a space of each of the unit segments; and a point cloud amount display unit configured to display, on the information display terminal, information according to the point cloud amount calculated for each of the unit segments of the display area by the point cloud amount calculation unit.

公开(公告)号：US20220163328A1

公开(公告)日：2022-05-26

申请号：US17527421

申请日：2021-11-16

Applicant: TOPCON Corporation

Inventor： Fumio Ohtomo ,  Takeshi Sasaki ,  Kaoru Kumagai

IPC: G01C15/00 ,  G01C15/02

Abstract: Provided is a surveying instrument including a distance measuring module configured to measure a distance to an object, an optical axis deflector configured to deflect the distance measuring light, a measuring direction image pickup module configured to acquire an observation image, an arithmetic control module, and an operation panel includes a display module, the arithmetic control module is configured to cause the optical axis deflector to perform a scan with a predetermined scan pattern and create an overlay image as a superimposition of the locus of the scan pattern on the observation image, and calculate a formula of a straight line or a curve line based on a measurement result of intersections or the closest points to the intersections between the straight line or the curve line drawn along a ridge line or a contour of the object and the locus of the scan pattern on the displayed overlay image.

公开(公告)号：US11009893B2

公开(公告)日：2021-05-18

申请号：US15438947

申请日：2017-02-22

Applicant: TOPCON Corporation

Inventor： Hitoshi Otani ,  Daisuke Sasaki ,  Nobuyuki Fukaya ,  Takeshi Sasaki

IPC: G05D1/00 ,  B64C39/02 ,  G06T7/20 ,  G06T7/70 ,  G08G5/00 ,  H04N5/232 ,  G05D1/10 ,  G01S17/42 ,  G01S5/00 ,  G01S17/66 ,  G01S11/12 ,  G01S19/42 ,  G01S17/86 ,  G01S19/13

Abstract: The invention provides a flying vehicle tracking method, which comprises an optical tracking in which a tracking light is projected to a retro-reflector of a flying vehicle with the retro-reflector, the tracking light is received, and a tracking of the flying vehicle is performed based on a light receiving result, and an image tracking in which an image of the flying vehicle is acquired, the flying vehicle is detected from the image, and the tracking of the flying vehicle is performed based on a detection result, wherein the optical tracking and the image tracking are executed in parallel with each other, and in a case where the flying vehicle cannot be tracked by the optical tracking, the optical tracking is returned based on the detection result of the image tracking.

公开(公告)号：US10088332B2

公开(公告)日：2018-10-02

申请号：US15421834

申请日：2017-02-01

Applicant: TOPCON Corporation

Inventor： Hitoshi Otani ,  Daisuke Sasaki ,  Nobuyuki Fukaya ,  Takeshi Sasaki

IPC: G05D1/00 ,  G01C23/00 ,  B64C39/02 ,  G01C15/02 ,  G01C21/00 ,  B64D45/00 ,  B64D47/08 ,  G01S19/42 ,  G05D1/02 ,  G05D1/10

Abstract: A flying vehicle has a retro-reflector, a position measuring instrument has a non-prism measurement function for performing a distance measurement and an angle measurement in non-prism and a prism measurement function for performing the distance measurement and the angle measurement with respect to the retro-reflector, a control device is adapted to have a flight range as set within a flat plane, to prepare an approximate flight plan having a two-dimensional approximate flying route as set within the flight range, to measure the approximate flying route by the non-prism measurement, to calculate a three-dimensional detailed flying route based on the measurement results and the approximate flying route, to prepare a detailed flight plan including the detailed flying route and to control the flying vehicle so as to fly in maintaining a distance between the flying vehicle system and a surface of the object to be measured at a constant value based on the detailed flight plan and a result of the prism measurement.

公开(公告)号：US12188770B2

公开(公告)日：2025-01-07

申请号：US17655702

申请日：2022-03-21

Applicant: Topcon Corporation

Inventor： Takeshi Sasaki ,  Hideki Morita

IPC: G01C15/00

Abstract: A method and apparatus for determining the position of a laser scanner using one or more optical targets, each arranged at a known point. The apparatus includes: a ground control point position obtaining part which obtains information of arrangement positions of multiple optical reflection targets; a laser scanner approximate position data obtaining part which obtains an approximate position of a laser scanner; a laser scanning data obtaining part which obtains data of multiple luminescent points; a processing objective point extracting part which extracts multiple luminescent points having luminance exceeding a specific threshold value; and a laser scanner position calculating part which gives data of the arrangement position of the optical reflection target to each of the extracted multiple luminescent points so as to calculate position of the laser scanner.

公开(公告)号：US10198632B2

公开(公告)日：2019-02-05

申请号：US15196425

申请日：2016-06-29

Applicant: TOPCON CORPORATION

Inventor： Takeshi Sasaki ,  Tetsuji Anai ,  Hitoshi Otani ,  Nobuo Kochi

IPC: G06K9/00 ,  G06T7/73

Abstract: The efficiency of the work for identifying reference points that are included in photographed images is improved. Targets are located and are photographed from short distances, and the positions of the targets are measured. A 3D reference point model is generated by using the measured positions of the targets as apexes. Then, the positions of the targets that are detected from images taken by a UAV from the air are calculated from a three-dimensional model that are generated by the principle of the stereoscopic three-dimensional measurement, whereby a 3D relative model constituted of a TIN is obtained. After a matching relationship between the 3D reference point model and the 3D relative model is identified, the positions of the targets in the 3D relative model are estimated based on the identified matching relationship, and the positions of the reference points in the images taken from the UAV are estimated.

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.