公开(公告)号：US20220386868A1

公开(公告)日：2022-12-08

申请号：US17774486

申请日：2020-12-21

Applicant: Topcon Corporation

Inventor： Yusuke ONO

IPC: A61B3/117 ,  A61B3/10 ,  A61B3/00 ,  A61B3/12

Abstract: In the ophthalmic apparatus 1 of an aspect example, the image acquiring unit (the fundus camera unit 2, the OCT unit 100, the image data constructing unit 220) acquires an anterior segment image constructed based on data collected from an anterior segment of a subject's eye by OCT scanning. The part image identifying processor 231 performs identification of two or more part images respectively corresponding to two or more parts of the anterior segment from the anterior segment image acquired. The part image assessing processor 232 performs image quality assessment of each of the two or more part images. The anterior segment image assessing processor 233 performs image quality assessment of the anterior segment image based on two or more pieces of assessment data respectively obtained for the two or more part images.

公开(公告)号：US11520015B2

公开(公告)日：2022-12-06

申请号：US16106309

申请日：2018-08-21

Applicant: TOPCON CORPORATION

Inventor： Yasushi Tanaka ,  Takaaki Saito ,  Ken'ichiro Yoshino ,  Mitsuru Kanokogi

IPC: G01S7/481 ,  G01S7/497 ,  G01J3/10 ,  G01S17/89 ,  G01S17/10 ,  G01S17/42

Abstract: A 3-dimensional measuring device includes: a light source unit; a projection optical system; a scanning mirror that is provided to be rotatable about a rotating shaft in a state of being inclined with respect to a shaft center of the rotating shaft to radiate a range-finding light within a plane crossing the rotating shaft in a rotary manner; a light-receiving optical system that receives a reflection range-finding light; a reference light optical system that is provided in a range outside a measuring range within a radiation range to receive and reflect the range-finding light as an internal reference light, the reference light optical system being capable of changing a light quantity of the internal reference light; and a light receiving element that receives the reflection range-finding light and the internal reference light.

公开(公告)号：US11513084B2

公开(公告)日：2022-11-29

申请号：US17280158

申请日：2019-09-25

Applicant: Topcon Corporation ,  RIKEN

Inventor： Shigenori Nagano ,  Hanako Aikoh ,  Yoshie Otake ,  Yuichi Yoshimura ,  Hideyuki Sunaga

IPC: G01T3/08 ,  G01N23/05 ,  G01N23/20008 ,  G01N23/204 ,  G01T3/00 ,  G01T7/00

Abstract: A non-destructive inspection system 1 includes a neutron detecting unit 4 and an arithmetic unit 60. The neutron detecting unit 4 includes a collimator 30 and a neutron detector 20 integrated together. The collimator 30 has a wall defining a through passage P. The wall is made from a material that absorbs neutrons produced via an inspection object. The neutron detector 20 is capable of detecting neutrons that have passed through the collimator 30. The arithmetic unit 60 generates information on a position and composition of the inspection object, based on information on the neutrons detected by the neutron detector 20, positional information indicating the position of the neutron detecting unit 4, and posture information indicating the posture of the neutron detecting unit 4. The positional information and the posture information are detected by a position and posture detecting unit 5.

公开(公告)号：US11490805B2

公开(公告)日：2022-11-08

申请号：US16777927

申请日：2020-01-31

Applicant: TOPCON CORPORATION

Inventor： Ryoichi Hirose ,  Tatsuo Yamaguchi

IPC: A61B3/00 ,  A61B3/10 ,  A61B3/12 ,  G06T3/60

Abstract: A new technique is provided to easily grasp the form of the fundus and the like of the eye to be examined being depicted in a tomographic image. An ophthalmic information processing device includes an image rotation circuit and a display control circuit. The image rotation circuit rotates a tomographic image of the eye to be examined acquired by using optical coherence tomography while making a measurement optical axis be eccentric relative to a predetermined site of the eye to be examined, in accordance with an eccentric amount and an eccentric direction of the measurement optical axis relative to the predetermined site. The display control circuit causes a display device to display the tomographic image rotated by the image rotation circuit.

公开(公告)号：US20220313084A1

公开(公告)日：2022-10-06

申请号：US17642236

申请日：2020-09-10

Applicant: Topcon Corporation

Inventor： Jongsik KIM ,  Dawei LI ,  Toshihiro MINO ,  Zhenguo WANG ,  Kinpui CHAN

IPC: A61B3/14 ,  A61B3/12 ,  A61B3/00

Abstract: An ophthalmological imaging device includes illumination optics having an illumination light source that outputs an illumination light, a scanner that redirects the illumination light toward a portion of an object to be imaged, and an optical image capture device including a camera that receives backscattered light that is scattered from the illumination light by the object and captures first and second images of the backscattered light. The device also includes a control processor that controls the scanner and the optical image capture device to cause the optical image capture device to capture the first and second images of the object. The first and second images are captured by the camera at different times and extracted from different portions of the backscattered light. The device also includes an image processor that generates a stereoscopic image from the first and second images of the object.

公开(公告)号：US20220284608A1

公开(公告)日：2022-09-08

申请号：US17653632

申请日：2022-03-04

Applicant: Topcon Corporation

Inventor： You Sasaki

IPC: G06T7/521 ,  G06T7/70 ,  G06V10/10 ,  G06V10/46

Abstract: Synchronizing between multiple optical data can be maintained by a facilitated method. An optical data processing operational unit 108 includes an optical data obtaining part 301 which obtains laser scan data by a laser scanner mounted on a moving body and image data of a photographed image photographed by a camera mounted on the moving body; and a delay time obtaining part 305 which calculates Δt when the point cloud image viewed from the viewpoint at time a specific time T made based on the laser scan data is obtained and the camera photographs with a delay Δt when the camera is ordered to photograph at time T; wherein relationships of exterior orientation elements of the laser scanner and the camera are known, and Δt is calculated in a condition in which difference in overlapping degree of the point cloud image and the photographed image is minimal.

公开(公告)号：US20220283272A1

公开(公告)日：2022-09-08

申请号：US17653636

申请日：2022-03-04

Applicant: Topcon Corporation

Inventor： You SASAKI

IPC: G01S7/481 ,  G01S17/42 ,  G01S17/86 ,  G06T7/80 ,  G06V20/56

Abstract: Synchronizing between multiple optical data using: an optical data obtaining part which obtains a laser scan point cloud obtained by a laser scanner mounted on a moving body and image data of an image photographed by a camera mounted on the moving body; a correspondence relationship determining part which determines correspondence relationship between point cloud image viewed from a specific viewpoint and the photographed image; a camera position and orientation calculating part which calculates camera position X1 in photographing of the photographed image by a single photograph orientation based on the correspondence relationships; and a delay time (Δt) calculating part that calculates Δt when the camera photographs with a delay Δt when the camera is commanded to take a photograph at a time T, in which the Δt is calculated based on a difference of the time T1 corresponding to the camera position X1 and the time T.

公开(公告)号：US20220276050A1

公开(公告)日：2022-09-01

申请号：US17667163

申请日：2022-02-08

Applicant: TOPCON CORPORATION

Inventor： Takeshi KIKUCHI

IPC: G01C15/06 ,  G01C15/00 ,  G06V20/20 ,  G06V30/228 ,  G02B27/01 ,  G06T19/00

Abstract: A managing system includes an electronic marker to be used near a measurement point, including a position sensor, a posture sensor, a communication section, and a marker operation button group, an eyewear device to be worn on the head of the worker, including a display, an imaging section, a position sensor, a posture sensor, and a communication section, an arithmetic device for synchronizing positions and postures of the electronic marker and the eyewear device, displaying a handwritten data synthesized image obtained by synthesizing the handwritten data written at coordinates of a tip end port of the electronic marker of the marker operation button group with an image imaged by the imaging section, and applying OCR processing to the handwritten data synthesized image, and a storage device for storing the handwritten data synthesized image and text data extracted by the OCR processing as additional data of the measurement point.

公开(公告)号：US20220265136A1

公开(公告)日：2022-08-25

申请号：US17179416

申请日：2021-02-19

Applicant: TOPCON CORPORATION

Inventor： Toshihiro MINO

IPC: A61B3/00 ,  A61B3/10 ,  G06T7/55 ,  G06T5/00

Abstract: An ophthalmologic information processing apparatus according to the embodiments include a generator, an extractor, and a phase correction unit. The generator is configured to generate a phase difference profile by performing averaging processing in a depth direction on phase differences obtained by calculating for each depth position of A-lines between two adjacent B-frames of complex OCT data of a subject's eye. The extractor is configured to a phase drift from the phase difference profile generated by the generator. The phase correction unit is configured to correct a phase of first complex OCT data of any one of the two B-frames based on the phase drift extracted by the extractor.

公开(公告)号：US20220229182A1

公开(公告)日：2022-07-21

申请号：US17575726

申请日：2022-01-14

Applicant: TOPCON Corporation

Inventor： Fumio Ohtomo ,  Kaoru Kumagai ,  Ikuo Ishinabe

IPC: G01S17/42 ,  G01C15/00 ,  G01C9/06 ,  G01S17/89

Abstract: There is provided a surveying instrument including a distance measurement arithmetic module configured to measure a distance to an object and the reflection intensity of a reflected distance measuring light based on a distance measuring light and the reflected distance measuring light, a narrow-angle image pickup module configured to acquire an image with an axis of the distance measuring optical as a center, an optical axis deflector configured to have a wavelength dispersion compensation prism arranged in the distance measuring optical axis and deflect the distance measuring optical axis by the rotation of the wavelength dispersion compensation prism, an extracting means configured to extract an end face reflection image of the wavelength dispersion compensation prism from the image, and an arithmetic control module configured to calculate a deflecting direction of the optical axis deflector based on the end face reflection image extracted by the extracting means.