公开(公告)号：US20190059721A1

公开(公告)日：2019-02-28

申请号：US16112803

申请日：2018-08-27

Applicant: TOPCON CORPORATION

Inventor： Yusuke Ono

IPC: A61B3/14 ,  A61B3/00 ,  A61B3/117 ,  A61B3/12 ,  A61B3/10 ,  G06T7/246 ,  G06T7/32

Abstract: The ophthalmologic apparatus comprises an optical system for acquiring data of a subject's eye optically, an image acquiring unit that acquires a first image of an anterior segment of the subject's eye and a second image of the anterior segment at different timings from each other, a rotational movement amount calculator that calculates a rotational movement amount between a partial image in the second image and a corresponding partial image in the first image, the corresponding partial image corresponding to the partial image, a registration unit that performs registration between the corresponding partial image and the partial image in a rotation direction based on the rotational movement amount, a parallel movement amount calculator that performs a phase only correlation processing on the corresponding partial image and the partial image registered by the registration unit to calculate a parallel movement amount between the corresponding partial image and the partial image, a movement mechanism that moves the subject's eye and the optical system relative to each other, and a controller that controls the movement mechanism based on at least one of the rotational movement amount and the parallel movement amount.

公开(公告)号：US12288329B2

公开(公告)日：2025-04-29

申请号：US17800536

申请日：2021-01-27

Applicant: Topcon Corporation

Inventor： Kazunori Asanuma ,  Yusuke Ono

IPC: G06T7/00 ,  G06T5/00 ,  G06T5/80 ,  G06T7/13 ,  G06V10/25 ,  G06V40/18

Abstract: An ophthalmic apparatus of an aspect example includes an image acquiring unit, a first image region identifying processor, and a second image region identifying processor. The image acquiring unit is configured to acquire an anterior segment image constructed based on data collected from an anterior segment of a subject's eye by OCT scanning. The first image region identifying processor is configured to identify a first image region corresponding to a predetermined part of the anterior segment by analyzing a first part of the anterior segment image acquired by the image acquiring unit. The second image region identifying processor is configured to identify a second image region corresponding to the predetermined part based on the first image region identified by the first image region identifying processor, the second image region being inside a second part that includes the first part as a proper subset.

公开(公告)号：US11122973B2

公开(公告)日：2021-09-21

申请号：US16470989

申请日：2017-12-08

Applicant: TOPCON CORPORATION

Inventor： Yusuke Ono

IPC: A61B3/12 ,  A61B3/10 ,  A61B3/15 ,  A61B3/00 ,  A61B3/103

Abstract: According to an ophthalmological apparatus of an embodiment example, a light beam projecting system includes an optical scanner and projects a light beam onto an eye fundus. A fixation system projects fixation light onto the eye fundus. A photographing device captures a moving image of the eye fundus onto which the fixation light is being projected, to acquire a front observation image. An analyzing circuitry analyzes the front observation image to specify the position of a predetermined site of the eye fundus. A controlling circuitry controls at least one of the fixation system and the optical scanner based on the positional relationship between the position of the predetermined site specified by the analyzing circuitry and a projection target area of the light beam from the light beam projecting system.

公开(公告)号：US20190059722A1

公开(公告)日：2019-02-28

申请号：US16113246

申请日：2018-08-27

Applicant: TOPCON CORPORATION

Inventor： Yusuke Ono

IPC: A61B3/14 ,  A61B3/00 ,  A61B3/117 ,  A61B3/12 ,  A61B3/10 ,  G06T7/246 ,  G06T7/73 ,  G06T7/32

Abstract: An ophthalmologic apparatus comprises an optical system that acquires data of an anterior segment of a subject's eye or a fundus of the subject's eye, an imaging unit that images the anterior segment or the fundus, a movement mechanism that moves the subject's eye and the optical system relative to each other, and a controller that controls die movement mechanism. The controller controls the movement mechanism so as to maintain a positional relationship between the subject's eye and the optical system based on an anterior segment image acquired by the imaging unit in an anterior segment mode for acquiring data of the anterior segment by the optical system, and controls the movement mechanism so as to maintain the positional relationship based on a fundus image acquired by the imaging unit in a fundus mode for acquiring data of the fundus by the optical system.