公开(公告)号：EP3918975A1

公开(公告)日：2021-12-08

申请号：EP19912859.6

申请日：2019-12-26

Applicant: TOPCON CORPORATION

Inventor： HIROSE Ryoichi ,  YAMAGUCHI Tatsuo

IPC: A61B3/10

Abstract: This ophthalmic information processing device corrects an image of a subject eye that is formed by arranging a plurality of A scan images obtained by scanning the inside of the subject eye with measuring light deflected about a scan center position. The ophthalmic information processing device includes an identifying unit and a conversion unit. The identifying unit identifies a conversion position which corresponds to a pixel position in the image of the subject eye and follows a direction of travel of the measuring light that passes through the scan center position. The conversion unit converts the pixel position into the conversion position identified by the identifying unit.

公开(公告)号：EP3851027A1

公开(公告)日：2021-07-21

申请号：EP19860340.9

申请日：2019-08-07

Applicant: TOPCON CORPORATION

Inventor： YAMAGUCHI Tatsuo ,  HIROSE Ryoichi

IPC: A61B3/10

Abstract: In an ophthalmological imaging device according to an embodiment of the present invention, a data collection unit applies OCT scanning to an eye being inspected to collect data. An image construction unit constructs an image from the collected data. A focus position change unit is provided in the optical path of measurement light emitted by the data collection unit to the eye being inspected. A scan control unit controls the data collection unit according to scan patterns including a continuous first partial pattern for a central region in an OCT scanning area and a continuous second partial pattern for a peripheral region. A focus control unit controls the focus position change unit such that a first focus position is applied while OCT scanning is applied to at least a part of the first partial pattern, and a second focus position is applied while OCT scanning is applied to at least a part of the second partial pattern.

公开(公告)号：EP3932292A1

公开(公告)日：2022-01-05

申请号：EP19916685.1

申请日：2019-12-24

Applicant: TOPCON CORPORATION

Inventor： HIROSE Ryoichi ,  YAMAGUCHI Tatsuo ,  MIYAGAWA Suguru

IPC: A61B3/10

Abstract: This ophthalmic information processing device analyzes an image of a test eye formed by arranging multiple A scan images obtained by OCT scanning inside of the test eye with a measurement beam deflected about a scan center position. This ophthalmic information processing device includes a correction unit, a region specifying unit and a direction specifying unit. The correcting unit converts pixel positions in the aforementioned image to converted positions that are along the direction of advancement of the measurement beam which passes through the scan center position. The region specifying unit specifies a prescribed layer region by analyzing the image in which the pixel positions have been converted by the correcting unit. The direction specifying unit specifies the normal direction of the layer region specified by the region specifying unit.

公开(公告)号：EP3858228A1

公开(公告)日：2021-08-04

申请号：EP19866470.8

申请日：2019-08-07

Applicant: TOPCON CORPORATION

Inventor： HIROSE Ryoichi ,  MINO Toshihiro ,  YAMAGUCHI Tatsuo

IPC: A61B3/12 ,  A61B3/10

Abstract: An ophthalmological imaging device according to an embodiment of the present invention performs motion contrast imaging by applying OCT scanning to an eye being inspected, and comprises a data acquisition unit, an image formation unit, and a control unit. The data acquisition unit repeatedly applies A scanning, which is primary scanning in the depth direction, to each of a plurality of scanning points to acquire time-series data corresponding to each of the plurality of scanning points. The image formation unit forms a motion contrast image from a plurality of time-series data acquired by the data acquisition unit. The control unit controls the data acquisition unit such that the intervals of data acquisition of first time-series data corresponding to a first scanning point among the plurality of scanning points are substantially equal to the intervals of data acquisition of second time-series data corresponding to a second scanning point.