公开(公告)号：US12133684B2

公开(公告)日：2024-11-05

申请号：US17211932

申请日：2021-03-25

Applicant: Topcon Corporation

Inventor： Ryoichi Hirose ,  Toshihiro Mino ,  Tatsuo Yamaguchi

IPC: A61B3/10 ,  A61B3/12

Abstract: The ophthalmic imaging apparatus (1) of an embodiment example performs motion contrast imaging by applying OCT scanning to an eye (E). The data acquiring unit (2, 100) acquires a plurality of pieces of time-course data respectively corresponding to a plurality of scan points, by conducting repetitive A-scan application to individual scan points. The image constructing unit (220) constructs a motion contrast image from the plurality of pieces of time-course data acquired. The controller (211) controls the data acquiring unit such that data acquisition time intervals of first time-course data corresponding to a first scan point of the plurality of scan points and data acquisition time intervals of second time-course data corresponding to a second scan point become substantially equal to each other.

公开(公告)号：US20240249393A1

公开(公告)日：2024-07-25

申请号：US18624782

申请日：2024-04-02

Applicant: TOPCON CORPORATION

Inventor： Song Mei ,  Toshihiro Mino ,  Dawei Li ,  Zaixing Mao ,  Zhenguo Wang ,  Kinpui Chan

IPC: G06T5/50 ,  A61B5/00 ,  A61B5/026 ,  G01B9/02 ,  G01B9/02091 ,  G06T7/33

CPC classification number: G06T5/50 ,  A61B5/0066 ,  A61B5/0261 ,  A61B5/489 ,  A61B5/7267 ,  A61B5/742 ,  G01B9/02041 ,  G01B9/02091 ,  G06T7/33 ,  G06T2200/04 ,  G06T2207/10101 ,  G06T2207/20081 ,  G06T2207/20221 ,  G06T2207/30104

Abstract: Optical coherence tomography (OCT) angiography (OCTA) data is generated by one or more machine learning systems to which OCT data is input. The OCTA data is capable of visualization in three dimensions (3D) and can be generated from a single OCT scan. Further, motion artifact can be removed or attenuated in the OCTA data by performing the OCT scans according to special scan patterns and/or capturing redundant data, and by the one or more machine learning systems.

公开(公告)号：US11759104B2

公开(公告)日：2023-09-19

申请号：US17013695

申请日：2020-09-07

Applicant: University of Tsukuba ,  TOPCON CORPORATION

Inventor： Yoshiaki Yasuno ,  Shuichi Makita ,  Tatsuo Yamaguchi ,  Toshihiro Mino

IPC: A61B3/00 ,  A61B3/10 ,  G01B9/02091

CPC classification number: A61B3/102 ,  A61B3/0025 ,  G01B9/02091

Abstract: In a scanning imaging apparatus of some aspect examples, a scanner applies an optical scan to a sample to acquire data. A scan controller controls the scanner to sequentially apply, to the sample, pattern scans according to a two-dimensional pattern including cycles. A movement unit relatively moves a scan area corresponding to the two-dimensional pattern and the sample. A movement controller controls the movement unit such that cycles in first and second scans of the pattern scans cross each other. An image constructing unit constructs an image based on data acquired under controls performed by the scan controller and the movement controller. The scan controller and the movement controller perform controls of the scanner and the movement unit respectively such that first and second cycles in a pattern scan cross each other at least at one point.

公开(公告)号：US11141060B2

公开(公告)日：2021-10-12

申请号：US16377263

申请日：2019-04-08

Applicant: TOPCON CORPORATION

Inventor： Toshihiro Mino ,  Jonathan Liu

IPC: A61B3/10 ,  A61B3/103 ,  A61B3/15 ,  A61B3/107 ,  A61B3/13 ,  A61B3/18

Abstract: An ophthalmologic apparatus of embodiments includes an OCT unit, an acquisition unit, and a specifying unit. The OCT unit is configured to acquire a tomographic image of a subject's eye using optical coherence tomography. The acquisition unit is configured to acquire a front image of the subject's eye. The specifying unit is configured to specify shape of a tissue of the subject's eye based on the tomographic image acquired by the OCT unit and the front image acquired by the acquisition unit.