首页> 外国专利> CORNEAL CURVATURE RADIUS CALCULATION DEVICE, LINE-OF-SIGHT DETECTION DEVICE, CORNEAL CURVATURE RADIUS CALCULATION METHOD, AND CORNEAL CURVATURE RADIUS CALCULATION PROGRAM

CORNEAL CURVATURE RADIUS CALCULATION DEVICE, LINE-OF-SIGHT DETECTION DEVICE, CORNEAL CURVATURE RADIUS CALCULATION METHOD, AND CORNEAL CURVATURE RADIUS CALCULATION PROGRAM

机译:角膜曲率半径计算装置,视线检测装置,角膜曲率半径计算方法,以及角膜曲率半径计算程序

摘要

This corneal curvature radius calculation device comprises: a first light source and a second light source that emit beams of detection light from differing positions onto at least one eyeball of a subject; an image capture unit that captures an image of the eyeball of the subject onto which the detection light has been emitted; a position calculation unit that, on the basis of the image of the eyeball of the subject captured by the image capture unit, calculates the position of a first corneal reflection center formed by the detection light from the first light source and the position of a second corneal reflection center formed by the detection light from the second light source; a center distance calculation unit that calculates the inter-center distance between the position of the first corneal reflection center and the second corneal reflection center; and a corneal curvature radius calculation unit that calculates the corneal curvature radius of the eyeball of the subject on the basis of the inter-center distance and the distance between the image capture unit and the eyeball of the subject.
机译:该角膜曲率半径计算装置包括:第一光源和第二光源,所述第一光源和第二光源从不同位置将检测光束发射到对象的至少一个眼球上;图像捕获单元,其捕获已发射检测光的对象的眼球的图像;位置计算单元,其基于由图像捕获单元捕获的对象的眼球的图像,计算由来自第一光源的检测光形成的第一角膜反射中心的位置和由来自第二光源的检测光形成的第二角膜反射中心的位置;中心距离计算单元,其计算第一角膜反射中心和第二角膜反射中心的位置之间的中心间距离;以及角膜曲率半径计算单元,其基于所述中心间距离以及所述图像捕获单元与所述对象的眼球之间的距离来计算所述对象的眼球的角膜曲率半径。

著录项

  • 公开/公告号WO2022038814A1

    专利类型

  • 公开/公告日2022-02-24

    原文格式PDF

  • 申请/专利权人 JVCKENWOOD CORPORATION;

    申请/专利号WO2021JP08894

  • 发明设计人 HAKOSHIMA SHUJI;

    申请日2021-03-08

  • 分类号A61B3/113;G06F3/0346;G06F3/038;

  • 国家 JP

  • 入库时间 2022-08-24 23:44:50

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