公开(公告)号：US11204243B2

公开(公告)日：2021-12-21

申请号：US16461160

申请日：2018-02-28

Applicant: RIKEN ,  TOPCON CORPORATION

Inventor： Shin Yoshizawa ,  Hideo Yokota ,  Suguru Miyagawa

IPC: G01B21/30 ,  G01B11/30 ,  G01C7/04 ,  G01B21/00

Abstract: Target point cloud data about a specific road are extracted from perimeter point cloud data acquired by moving a road surface measurement device along a measurement route and scanning the surroundings thereof. A data storage unit stores trajectory point sequence data that represent, as a plurality of trajectory points, the perimeter point cloud data and a trajectory of the movement of the road surface measurement device. A trajectory point sequence setting unit acquires a trajectory point sequence at equal intervals from the trajectory point sequence data. An extraction area setting unit sets, as extraction areas, a column area Ci and a parallelepiped area Hi that are geometric areas disposed at predetermined positions below a trajectory point Xi. An approximate nearest neighbor search processing unit and an extraction processing unit extract, as the target point cloud data, point data that belong to this extraction area of the perimeter point cloud data.

公开(公告)号：US20210386290A1

公开(公告)日：2021-12-16

申请号：US17319089

申请日：2021-05-13

Applicant: National University Corporation ASAHIKAWA MEDICAL UNIVERSITY ,  Topcon Corporation

Inventor： Akitoshi YOSHIDA ,  Kana MINAMIDE ,  Masahiro AKIBA ,  Jun SAKAI

IPC: A61B3/12 ,  A61B3/10

Abstract: The blood flow analysis apparatus includes an acquisition unit and an extractor. The acquisition unit is configured to acquire blood flow information representing time-course changes in a blood flow velocity of a single retinal artery or retinal vein. The extractor is configured to extract one or more parameters corresponding to change in the blood flow velocity from the blood flow information.

公开(公告)号：US11193765B2

公开(公告)日：2021-12-07

申请号：US16707001

申请日：2019-12-09

Applicant: TOPCON Corporation

Inventor： Fumio Ohtomo ,  Kaoru Kumagai ,  Tetsuji Anai

IPC: G01C11/10 ,  G01C11/02

Abstract: There is provided a surveying instrument including a distance measuring unit configured to measure a distance to an object to be measured, a measuring direction image pickup module which includes the object to be measured and is configured to acquire as observation image, an attitude detector is configured to detect a tilt of the surveying instrument main body and a arithmetic control module, and wherein the arithmetic control module is configured to extract each common corresponding point from a first image acquired at a first installing point and a second image acquired at a second installing point, perform the matching based on the corresponding point, and make a measurement of a positional relationship of the object to be measured with respect to the first installing point and the second installing point based on a matching image.

公开(公告)号：USD936835S1

公开(公告)日：2021-11-23

申请号：US29697666

申请日：2019-07-10

Applicant: Topcon Corporation

Designer： Masashi Yamaoka

公开(公告)号：USD936834S1

公开(公告)日：2021-11-23

申请号：US29697662

申请日：2019-07-10

Applicant: Topcon Corporation

Designer： Masashi Yamaoka

公开(公告)号：USD935911S1

公开(公告)日：2021-11-16

申请号：US29715876

申请日：2019-12-05

Applicant: Topcon Corporation

Designer： Mitsuo Ishii

公开(公告)号：US20210302161A1

公开(公告)日：2021-09-30

申请号：US17202214

申请日：2021-03-15

Applicant: TOPCON CORPORATION

Inventor： Takeshi KIKUCHI ,  Yuji TAKANO

IPC: G01C15/00 ,  H04W84/18 ,  G06N20/00 ,  G06K9/62

Abstract: Provided is an information processing device includes an acquiring unit configured to acquire order information related to order details of surveying work, and instrument-related information related to the type of instrument used with which the surveying work has been executed and the kind of carrying accessories; a collected data storage unit configured to store the order information and the instrument-related information; an input order information extracting unit configured to extract a workload level, the type of survey, attributes of a surveying object, and required deliverables accuracy as input order information from the order information acquired by the acquiring unit; and an estimation model generating unit configured to generate an estimation model to estimate instrument-related information corresponding to order information by executing machine learning by using the input order information and instrument-related information as a learning data set.

公开(公告)号：US20210293962A1

公开(公告)日：2021-09-23

申请号：US17202692

申请日：2021-03-16

Applicant: TOPCON Corporation

Inventor： Fumio Ohtomo ,  Kaoru Kumagai ,  Tetsuji Anai

IPC: G01S17/89 ,  G01S17/42 ,  G01S7/48 ,  H04N5/247

Abstract: There is provided a surveying instrument including a distance measuring light projecting module, a light receiving module, an optical axis deflector provided in a common portion of a distance measuring optical axis and a light receiving optical axis, a projecting direction detector which detects an optical axis deflection angle and a deflecting direction, a narrow angle image pickup module for a narrow angle of view, a distance measurement arithmetic module, and an arithmetic control module, wherein the arithmetic control module controls the optical axis deflector and the distance measurement arithmetic module, the distance measurement arithmetic module performs a distance measurement of a measuring point based on a transmission signal of a measuring light and a reception signal of a measuring light, the narrow angle image pickup module acquires a narrow angle image with reference to the distance measuring optical axis, a sighting is performed every different objects, and an acquisition of the narrow angle image and a three-dimensional measurement are performed.

公开(公告)号：US11122974B2

公开(公告)日：2021-09-21

申请号：US16525598

申请日：2019-07-30

Applicant: TOPCON CORPORATION

Inventor： Kanichi Tokuda ,  Tsutomu Kikawa ,  Hiroyuki Ueda

IPC: G06K9/00 ,  G01C3/08 ,  A61B3/12 ,  A61B3/00 ,  A61B3/10 ,  G06T7/00

Abstract: An ophthalmologic information processing apparatus includes a reference data setting unit, a first region specifying unit, and a second region specifying unit. The reference data setting unit is configured to set, as first reference data, first fundus data among a plurality of fundus data of a fundus of a subject's eye acquired at different acquisition timings using optical coherence tomography. The first region specifying unit is configured to specify one or more first atrophy regions in the fundus by analyzing the first reference data. The second region specifying unit is configured to specify one or more second atrophy regions by analyzing second fundus data based on the one or more first atrophy regions, the second fundus data being acquired after the acquisition timing of the first reference data among the plurality of fundus data.

公开(公告)号：US11109754B2

公开(公告)日：2021-09-07

申请号：US16478191

申请日：2018-01-24

Applicant: TOPCON CORPORATION

Inventor： Toshifumi Mihashi

IPC: A61B3/103 ,  A61B3/00 ,  A61B3/14

Abstract: Provided is an ophthalmic measurement device with which it is possible to obtain an area in which a measurement can be taken without moving an optical system. With reference to an optical path length of an illumination optical system with which light is focused on the eyeground when the refraction value is 0 D, the positions of two light sources are set to achieve a setting in which the optical path length becomes slightly shorter. By doing so, it is possible to cope with measurement of refractive properties in a large area without employing structures that allow a lens system of the illumination optical system and the light sources thereof to be moved. In addition, by selecting one of the two light sources so that a clearer Hartmann image can be obtained, it is possible to further increase the precision of the refractive properties to be measured.