- 专利标题： CRYSTALLINE LENS DATA OBTAINING METHOD, OPHTHALMOLOGIC DEVICE, AND PROGRAM FOR OPHTHALMOLOGIC DEVICE
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申请号： EP20215153.6申请日： 2020-12-17
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公开(公告)号： EP3838114A1公开(公告)日： 2021-06-23
- 发明人: MAJIMA, Kiyoyuki , ICHIKAWA, Kazuo , ICHIKAWA, Kei
- 申请人： Chukyo Medical Co., Inc.
- 申请人地址： JP Nagoya-shi, Aichi 456-0032 12-23, Sanbonmatsu-cho Atsuta-ku
- 代理机构： Ter Meer Steinmeister & Partner
- 优先权： JP2019228036 20191218
- 主分类号： A61B3/117
- IPC分类号： A61B3/117 ; A61B3/00 ; A61B3/10
摘要：
Provided are a method, a device, or a program for easily determining a crystalline lens nucleus state.
A gray scale anterior segment image taken by optical coherence tomography is obtained (S21), and posterization of the anterior segment image is performed to obtain tone-changed images having 3 tones, 4 tones, and 5 tones (S22). One, of a plurality of predetermined grades, corresponding to the crystalline lens nucleus state is determined based on a combination of states of observed images of the crystalline lens nucleus in the tone-changed images (S23). The grades are set for classification according to whether or not an image of a crystalline lens nucleus is observed, whether the observed image is spot-shaped or band-shaped, or whether or not the entire image of the crystalline lens nucleus is observed.
A gray scale anterior segment image taken by optical coherence tomography is obtained (S21), and posterization of the anterior segment image is performed to obtain tone-changed images having 3 tones, 4 tones, and 5 tones (S22). One, of a plurality of predetermined grades, corresponding to the crystalline lens nucleus state is determined based on a combination of states of observed images of the crystalline lens nucleus in the tone-changed images (S23). The grades are set for classification according to whether or not an image of a crystalline lens nucleus is observed, whether the observed image is spot-shaped or band-shaped, or whether or not the entire image of the crystalline lens nucleus is observed.
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