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1. 发明授权

US11508062B2 Ophthalmological image processing apparatus 有权
公开(公告)号：US11508062B2
公开(公告)日：2022-11-22
申请号：US16830936
申请日：2020-03-26
申请人： NIDEK CO., LTD.
发明人： Ryosuke Shiba , Yoshiki Kumagai , Naoto Honda , Kenshiro Fujiu , Yuji Murase , Shohei Ito
IPC分类号： G06T7/00 , G06T7/246 , A61B3/00 , A61B3/10 , A61B3/12 , A61B3/14 , G06T5/00 , G06T5/50
摘要： An ophthalmological image processing apparatus acquires a plurality of images of a subject eye photographed in a scanning-type imaging optical system, sets any one of the plurality of images as a template, sets corresponding points or corresponding regions between an image of the subject eye and the template at a plurality of positions of each of the image of the subject eye and the template, calculates a movement amount of each of the corresponding points or each of the corresponding regions, and corrects a distortion of the image of the subject eye with respect to the template based on the movement amount of each of the corresponding points or each of the corresponding regions.

2. 发明授权

US09743830B2 Fundus photography device 有权
公开(公告)号：US09743830B2
公开(公告)日：2017-08-29
申请号：US14671312
申请日：2015-03-27
申请人： NIDEK CO., LTD.
发明人： Norimasa Satake , Naoto Honda
IPC分类号： A61B3/14 , A61B3/10 , A61B3/00 , A61B3/12
CPC分类号： A61B3/102 , A61B3/0033 , A61B3/0041 , A61B3/0058 , A61B3/1225
摘要： A fundus photography device includes: an OCT optical system configured to detect interference between a measurement light from a fundus of a subject's eye and a reference light from a reference optical path; a fundus photography optical system configured to detect a reflected light from the fundus; a controller configured to generate a tomographic image of the fundus and a first front image of the fundus based on an output signal from the OCT optical system, and generate a second front image of the fundus based on an output signal from the fundus photography optical system. The controller is configured to cause simultaneous display of the first front image and the second front image in different display regions on a monitor.

3. 发明授权

US11571122B2 Ophthalmologic image processing method and fundus imaging apparatus 有权
公开(公告)号：US11571122B2
公开(公告)日：2023-02-07
申请号：US16585117
申请日：2019-09-27
申请人： NIDEK CO., LTD.
发明人： Yuji Murase , Naoto Honda
IPC分类号： A61B3/12 , A61B3/00 , G06T5/40 , G06T7/44 , G06T11/00 , H04N1/60
摘要： An image processor performs a histogram acquisition step of acquiring a histogram representing a distribution of gradation values of pixels in a fundus color image captured by irradiating a fundus with a plurality of beams of single-color light having different wavelengths, the histogram being acquired for each channel corresponding to each beam of single-color light, a histogram correction step of acquiring a corrected histogram by correcting the histogram of each channel acquired in the histogram acquisition step, of which a target pattern is set for each channel in advance, so as to fit to the corresponding target pattern, and a color tone corrected image generation step of generating a color tone corrected image, in which a distribution of gradation values for each channel is represented by the corrected histogram, based on the corrected histogram of each channel.

4. 发明授权

US09204792B2 Corneal endothelial cell photographing apparatus 有权
标题翻译：角膜内皮细胞摄影装置
公开(公告)号：US09204792B2
公开(公告)日：2015-12-08
申请号：US13853681
申请日：2013-03-29
申请人： NIDEK CO., LTD.
发明人： Yusuke Sakashita , Naoto Honda
IPC分类号： A61B3/10 , A61B3/00 , A61B3/14 , A61B3/15
CPC分类号： A61B3/14 , A61B3/0091 , A61B3/152
摘要： A corneal endothelial cell photographing apparatus includes: a main unit that includes an illumination optical system, an imaging optical system, and a fixation optical system; a setting unit configured to preliminarily set illumination positions and an illumination order of the plurality of fixation lamps; a controller configured to obtain an endothelial image at a first fixation position, control the fixation optical system corresponding to a determination result for propriety of the endothelial image obtained at the first fixation position to light a fixation lamp corresponding to a second fixation position preliminarily set by the setting unit, and control the illumination optical system and the imaging optical system to obtain an endothelial image at the second fixation position; a monitor configured to display the endothelial image; and an operating unit configured to input a signal for operating at least the controller.
摘要翻译：角膜内皮细胞摄影装置包括：主体，包括照明光学系统，成像光学系统和固定光学系统; 设置单元，其被配置为预先设置所述多个固定灯的照明位置和照明顺序; 控制器，其被配置为在第一固定位置获得内皮图像，控制所述固定光学系统对应于在所述第一固定位置处获得的内皮图像的适当性的确定结果，以点亮对应于由第一固定位置预先设置的第二固定位置的固定灯设置单元，并控制照明光学系统和成像光学系统，以在第二固定位置获得内皮图像; 监视器，被配置为显示所述内皮图像; 以及操作单元，被配置为输入用于至少操作所述控制器的信号。

5. 发明授权

US10117573B2 Fundus photography device 有权
公开(公告)号：US10117573B2
公开(公告)日：2018-11-06
申请号：US15644073
申请日：2017-07-07
申请人： NIDEK CO., LTD.
发明人： Koichi Ito , Naoto Honda
IPC分类号： A61B3/10 , A61B3/12 , A61B3/14
摘要： A fundus photography device includes: a fundus illumination optical system that illuminates a fundus of an eye by illumination light; a fundus photography optical system; an OCT optical system; an anterior chamber observation optical system for observing an anterior chamber observation image of the eye illuminated by the anterior chamber illumination light source; a first wavelength separation member that sets a first optical axis commonly shared by the fundus illumination optical system and the fundus photography optical system to be coaxial with a second optical axis commonly shared by the OCT optical system and an anterior chamber observation optical system; and a second wavelength separation member that forms the second optical axis by setting an optical axis of the OCT optical system to be coaxial with an optical axis of the anterior chamber observation optical system.

6. 发明授权

US09723978B2 Fundus photography device 有权
公开(公告)号：US09723978B2
公开(公告)日：2017-08-08
申请号：US14671446
申请日：2015-03-27
申请人： NIDEK CO., LTD.
发明人： Koichi Ito , Naoto Honda
IPC分类号： A61B3/14 , A61B3/10 , A61B3/12
CPC分类号： A61B3/102 , A61B3/12 , A61B3/14
摘要： A fundus photography device includes: a fundus illumination optical system that illuminates a fundus of an eye by illumination light; a fundus photography optical system; an OCT optical system; an anterior chamber observation optical system for observing an anterior chamber observation image of the eye illuminated by the anterior chamber illumination light source; a first wavelength separation member that sets a first optical axis commonly shared by the fundus illumination optical system and the fundus photography optical system to be coaxial with a second optical axis commonly shared by the OCT optical system and an anterior chamber observation optical system; and a second wavelength separation member that forms the second optical axis by setting an optical axis of the OCT optical system to be coaxial with an optical axis of the anterior chamber observation optical system.

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