Patents by Inventor Tetsuji Anai
Tetsuji Anai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200081266Abstract: A surveying instrument comprises a distance measuring unit configured to measure a distance to an object to be measured, an optical axis deflector configured to deflect a distance measuring light, a measuring direction image pickup module configured to acquires an observation image and an arithmetic control module, wherein the arithmetic control module is configured to continuously cut out sighting images around a tracking point set in the observation image, to set a first cutout sighting image as a reference sighting image, to calculate a movement amount of the sighting image with respect to the reference sighting image by an image matching of the reference sighting image and the sighting image and to control the optical axis deflector based on a calculation result in such a manner that the tracking point is positioned at a center of the sighting image.Type: ApplicationFiled: September 10, 2019Publication date: March 12, 2020Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 10520307Abstract: The invention provides a surveying instrument, which comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured, an image pickup unit for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the image pickup unit, and an arithmetic processing unit, wherein the attitude detecting unit has tilt sensors for detecting a horizontal and a relative tilt angle detecting unit for detecting a tilt angle of the measuring unit with respect to the horizontal, and wherein the arithmetic processing unit calculates a tilting of the image with respect to a vertical based on a detection result of the attitude detecting unit and displays vertical lines in the image acquired by the image pickup unit based on this calculation result.Type: GrantFiled: February 1, 2017Date of Patent: December 31, 2019Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Publication number: 20190360806Abstract: A surveying instrument comprises a monopod installed at a reference point, a surveying instrument main body provided at the monopod and having an attitude detector, wherein the surveying instrument main body carries out an image pickup and a scanning of an object to be measured at a pre-movement and a post-movement respectively, obtains at least three cross points of a locus of a scan pattern of the pre-movement and the post-movement, and calculates three-dimensional coordinates of an installation point of the post-movement based on three-dimensional coordinates of the cross points measured from the reference point, a measurement result of the cross points measured from the installation point of the post-movement and a detection result of the attitude detector.Type: ApplicationFiled: May 21, 2019Publication date: November 28, 2019Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Publication number: 20190339075Abstract: A surveying instrument comprises a monopod installed on a reference point, a surveying instrument main body provided at a known distance from a lower end of the monopod and at a known angle with respect to an axis of the monopod and having a reference optical axis, wherein the surveying instrument main body performs an image pickup of an object to be measured and scans the object to be measured by a closed loop scan pattern respectively at a pre-rotation and a post-rotation of the surveying instrument main body, obtains cross points of a locus of a scan pattern of the pre-rotation and the post-rotation, obtains deflection angles of the cross point with respect to the reference optical axis of the pre-rotation and the post-rotation, and calculates a rotation angle of the surveying instrument main body based on a deviation between both of the deflection angles.Type: ApplicationFiled: April 30, 2019Publication date: November 7, 2019Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 10331972Abstract: A technique for making multiple still images, which are photographed by a traveling mobile body, and the traveled route of the photographing correspond to each other, is obtained. A survey data processing device includes an input unit 101, an image processing unit 102, and a synchronous processing unit 103. The input unit 101 is configured to receive image data of multiple still images, which are photographed from a mobile body flying, and receive flight data, in which a flight route of the mobile body is measured. The image processing unit 102 is configured to estimate a flight route of the mobile body based on changes in positions of feature points included in the multiple still images on a screen. The synchronous processing unit 103 is configured to specify a matching relationship between the flight route of the flight data and the estimated flight route.Type: GrantFiled: January 28, 2016Date of Patent: June 25, 2019Assignee: KABUSHIKI KAISHA TOPCONInventors: Daisuke Sasaki, Nobuyuki Fukaya, Hitoshi Ootani, Tetsuji Anai, Takeshi Sasaki
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Publication number: 20190186912Abstract: A surveying instrument comprises a monopod installed on a reference point, a surveying instrument main body having a reference optical axis and an operation panel, wherein the surveying instrument main body has a distance measuring unit, an arithmetic control module, a measuring direction image pickup module which acquires a first image, and an attitude detector which detects tilts of two axes of the surveying instrument main body to the horizontal, and wherein the operation panel has a display unit, a calculating module, and as operation module, and the at least either one of the arithmetic control module and the calculating module calculates a tilt angle of the reference optical axis to the horizontal and a tilt angle of the monopod to the vertical, and the at least either one measures a horizontal distance and a vertical distance to the object to be measured with reference to the reference point.Type: ApplicationFiled: December 11, 2018Publication date: June 20, 2019Inventors: Fumio Ohtomo, Tetsuji Anai, Kaoru Kumagai
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Patent number: 10281580Abstract: The invention provides a surveying system, which comprises a surveying instrument, wherein the surveying instrument comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured and by receiving a reflected distance measuring light from the object to be measured, an image pickup unit having an image pickup optical axis running in parallel to a projection optical axis of the distance measuring light and for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the measuring unit and for detecting a tilt angle with respect to the horizontal of the measuring unit, a coordinates acquiring unit for detecting a position of the surveying instrument and an arithmetic processing unit, wherein a first image of the object to be measured is acquired by the image pickup unit from a first position where coordinates of the first position are acquired by the coordinates acquiring unit, a second iType: GrantFiled: November 3, 2016Date of Patent: May 7, 2019Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Hitoshi Otani, Tetsuji Anai
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Patent number: 10198632Abstract: 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.Type: GrantFiled: June 29, 2016Date of Patent: February 5, 2019Assignee: TOPCON CORPORATIONInventors: Takeshi Sasaki, Tetsuji Anai, Hitoshi Otani, Nobuo Kochi
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Publication number: 20180329040Abstract: A target instrument has an illuminating lamp, wherein a total station has an optical axis deflector capable of deflecting a distance measuring optical axis, a projecting direction detecting module for performing an angle measurement of the distance measuring optical axis, an image pickup unit, and an arithmetic control module for controlling a deflecting action of the optical axis deflector and a distance measuring action of a distance measuring unit, wherein the arithmetic control module is configured to detect an illumination light from an image acquired by the image pickup unit, to acquire a direction of the illuminating lamp based on a detection result, to make the optical axis deflector to scan with a distance measuring light around the acquired direction and to perform a distance measurement and an angle measurement along a scanning path.Type: ApplicationFiled: May 2, 2018Publication date: November 15, 2018Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 10048063Abstract: The invention provides a measuring instrument, which comprises an image pickup unit for acquiring an image of a range including an object to be measured, a distance measuring unit for two-dimensionally scanning a predetermined range in synchronization with an image acquisition and for measuring, an arithmetic control unit and an attitude detecting unit for detecting a tilt angle of the image pickup unit with respect to a horizontality, wherein the arithmetic control unit associates a measurement result and a detection result of the attitude detecting unit with each pixel on a scanning locus corresponding to an acquired image.Type: GrantFiled: January 11, 2018Date of Patent: August 14, 2018Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Publication number: 20180135973Abstract: The invention provides a measuring instrument, which comprises an image pickup unit for acquiring an image of a range including an object to be measured, a distance measuring unit for two-dimensionally scanning a predetermined range in synchronization with an image acquisition and for measuring, an arithmetic control unit and an attitude detecting unit for detecting a tilt angle of the image pickup unit with respect to a horizontality, wherein the arithmetic control unit associates a measurement result and a detection result of the attitude detecting unit with each pixel on a scanning locus corresponding to an acquired image.Type: ApplicationFiled: January 11, 2018Publication date: May 17, 2018Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 9911038Abstract: The efficiency of work for identifying reference points included in photographed images is improved. A survey data processing device includes a data receiving unit 103 that receives data of two still images, an operation information receiving unit 104 that receives a selection of reference points among multiple reference points which are included in both of the two still images and have known location information, an exterior orientation parameter calculating unit 106 that calculates exterior orientation parameters of a camera, a coordinate integrating unit 110 for obtaining an integrated coordinate system for describing both the locations of an unselected reference point and the camera, a back-projected image generating unit 111 for generating a back-projected image by back-projecting the unselected reference point in the integrated coordinate system, and a target position estimating unit 112 that estimates a position of the unselected reference point in a still image.Type: GrantFiled: January 27, 2016Date of Patent: March 6, 2018Inventors: Takeshi Sasaki, Tetsuji Anai, Hitoshi Ootani, Nobuo Kochi
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Publication number: 20180052232Abstract: A measuring method, wherein point cloud data of a building is acquired by a laser scanner, wherein the laser scanner has an attitude detector for detecting a tilting with respect to a horizontality or a verticality, converts the point cloud data into a horizontal distance and a height or a difference of a height based on the tilting detected by the attitude detector, sets a height line at a predetermined height on a wall surface, averages a horizontal distance information of the point cloud data included in a predetermined width with the height line as a center in a height direction, further develops the horizontal distance information along the height line in a horizontal direction, and measures a horizontal cross section at the predetermined height.Type: ApplicationFiled: August 3, 2017Publication date: February 22, 2018Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 9897436Abstract: The invention provides a measuring instrument, which comprises an image pickup unit for acquiring an image of a range including an object to be measured, a distance measuring unit for two-dimensionally scanning a predetermined range in synchronization with an image acquisition and for measuring, an arithmetic control unit and an attitude detecting unit for detecting a tilt angle of the image pickup unit with respect to a horizontality, wherein the arithmetic control unit associates a measurement result and a detection result of the attitude detecting unit with each pixel on a scanning locus corresponding to an acquired image.Type: GrantFiled: May 23, 2017Date of Patent: February 20, 2018Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Publication number: 20170350692Abstract: The invention provides a measuring instrument, which comprises an image pickup unit for acquiring an image of a range including an object to be measured, a distance measuring unit for two-dimensionally scanning a predetermined range in synchronization with an image acquisition and for measuring, an arithmetic control unit and an attitude detecting unit for detecting a tilt angle of the image pickup unit with respect to a horizontality, wherein the arithmetic control unit associates a measurement result and a detection result of the attitude detecting unit with each pixel on a scanning locus corresponding to an acquired image.Type: ApplicationFiled: May 23, 2017Publication date: December 7, 2017Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 9736360Abstract: An operation burden in confirming a corresponding relationship between multiple still images and a traveled route is reduced. A survey data processing device includes a storing unit 106 and a UI controlling unit 105. The storing unit 105 stores survey data, in which image data of multiple still images that are photographed from a mobile body while flying is correlated with a flight route of the mobile body. The UI controlling unit 105 displays the flight route and at least one of the multiple still images on a screen. The displayed flight route and the displayed still image are displayed on the same screen at the same time in a condition in which a corresponding relationship between the flight route and the multiple still images is determined, and a moving direction of the mobile body that photographed the displayed still image is indicated in the displayed still image.Type: GrantFiled: January 27, 2016Date of Patent: August 15, 2017Assignee: KABUSHIKI KAISHA TOPCONInventors: Daisuke Sasaki, Nobuyuki Fukaya, Hitoshi Ootani, Kazuki Osaragi, Takeshi Sasaki, Tetsuji Anai
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Publication number: 20170227357Abstract: The invention provides a surveying instrument, which comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured, an image pickup unit for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the image pickup unit, and an arithmetic processing unit, wherein the attitude detecting unit has tilt sensors for detecting a horizontal and a relative tilt angle detecting unit for detecting a tilt angle of the measuring unit with respect to the horizontal, and wherein the arithmetic processing unit calculates a tilting of the image with respect to a vertical based on a detection result of the attitude detecting unit and displays vertical lines in the image acquired by the image pickup unit based on this calculation result.Type: ApplicationFiled: February 1, 2017Publication date: August 10, 2017Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Publication number: 20170131404Abstract: The invention provides a surveying system, which comprises a surveying instrument, wherein the surveying instrument comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured and by receiving a reflected distance measuring light from the object to be measured, an image pickup unit having an image pickup optical axis running in parallel to a projection optical axis of the distance measuring light and for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the measuring unit and for detecting a tilt angle with respect to the horizontal of the measuring unit, a coordinates acquiring unit for detecting a position of the surveying instrument and an arithmetic processing unit, wherein a first image of the object to be measured is acquired by the image pickup unit from a first position where coordinates of the first position are acquired by the coordinates acquiring unit, a second iType: ApplicationFiled: November 3, 2016Publication date: May 11, 2017Inventors: Fumio Ohtomo, Kaoru Kumagai, Hitoshi Otani, Tetsuji Anai
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Patent number: 9648304Abstract: A photographing device comprises an image pickup unit to acquire a moving image and a still image of an object, an image pickup control unit, an angle sensor, an image processing unit for extracting characteristic points from a first still image, tracking the characteristic points in the moving image, identifying the characteristic points in a newest image and selecting an orientation point common to the first still image and the newest image, a storage unit, a display unit, and an arithmetic unit. The arithmetic unit performs relative orientation between the first still image and the newest image based on the orientation point and on detection result of the angle sensor, obtains a distance H to the object and a distance B between points where the images have been photographed and performs guidance display where still images can be acquired sequentially when the B/H value reaches a predetermined value or higher.Type: GrantFiled: May 29, 2013Date of Patent: May 9, 2017Assignee: Kabushiki Kaisha TOPCONInventors: Fumio Ohtomo, Hitoshi Otani, Tetsuji Anai, Kaoru Kumagai
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Patent number: 9571794Abstract: A surveying apparatus comprises an observation optical system having an image sensor for outputting a digital image signal and a zoom optical system, a reference-pattern projection optical system for making a reference pattern enter the observation optical system in an infinity state and for forming an image on the image sensor, a rotation mechanism capable of rotating in two directions, a horizontal angle detector and a vertical angle detector for detecting a horizontal angle and a vertical angle of rotation in the two directions of the rotation mechanism, and an arithmetic control unit. The arithmetic control unit measures the horizontal angle and the vertical angle of a sighting point based on detection results of the horizontal angle detector and the vertical angle detector and based on a difference between the reference pattern on the image sensor and the sighting point of the observation optical system.Type: GrantFiled: December 18, 2012Date of Patent: February 14, 2017Assignee: Kabushiki Kaisha TOPCONInventors: Kaoru Kumagai, Kazuki Osaragi, Tetsuji Anai, Fumio Ohtomo