发明名称 |
Ophthalmologic apparatus and control method for the same |
摘要 |
A fundus imaging apparatus for acquiring a fundus image; and a measurement unit that extracts a characteristic image of a fundus image from a first fundus image captured by the fundus imaging apparatus, detects the characteristic image from a second fundus image that is different from the fundus image, and measures a position change in the fundus images from coordinates of the extracted characteristic image and the detected characteristic image in the respective fundus images, wherein a region in which the characteristic image is detected from the second fundus image is determined so that a region searched for the characteristic image from the first image includes the extracted characteristic image and is broader than a range of movement of the characteristic image resulting from movements of the eye ball within measurement time. |
申请公布号 |
US9468374(B2) |
申请公布日期 |
2016.10.18 |
申请号 |
US201514628420 |
申请日期 |
2015.02.23 |
申请人 |
Canon Kabushiki Kaisha |
发明人 |
Makihira Tomoyuki |
分类号 |
A61B3/14;A61B3/113;G06T7/20;G06T7/00;A61B3/12 |
主分类号 |
A61B3/14 |
代理机构 |
Fitzpatrick, Cella, Harper & Scinto |
代理人 |
Fitzpatrick, Cella, Harper & Scinto |
主权项 |
1. An ophthalmologic apparatus comprising:
an image acquiring unit configured to acquire a plurality of fundus images of an eye to be inspected, at different times; a processing unit configured to extract at least one characteristic region in a region other than a partial region having a predetermined width from a peripheral portion in at least one fundus image among the plurality of fundus images; and a measurement unit configured to measure a movement of the eye by using the at least one characteristic region. |
地址 |
Tokyo JP |