Title:
眼科装置
Document Type and Number:
Japanese Patent JP6883463
Kind Code:
B2
Abstract:
Provided is an ophthalmological device with which it is possible to clearly detect the three-dimensional distribution of blood vessels in an eye. In an ophthalmological device of an exemplary embodiment, a storage unit stores a three-dimensional data set acquired by applying optical coherence tomography to a subject's eye. A first blood vessel region extraction unit extracts a blood vessel region from the three-dimensional data set. A first layer region specification unit applies segmentation to the three-dimensional data set and specifies a plurality of layer regions. A first common region specification unit specifies common regions between each of the layer regions and the blood vessel region. A first en face image formation unit forms en face images on the basis of each of the common regions. A first color coding unit assigns different color information to the plurality of en face images formed by the first en face image formation unit. A first image compositing unit forms a composite en face image by compositing at least two of the plurality of en face images whereto the color information is assigned.
Inventors:
Hirokazu Onchi
Application Number:
JP2017087259A
Publication Date:
June 09, 2021
Filing Date:
April 26, 2017
Export Citation:
Assignee:
Topcon Co., Ltd.
International Classes:
A61B3/10
Domestic Patent References:
| JP2017047111A |
Foreign References:
| US20140221827 |
Other References:
ZHANG Qinqin et al.,"Wide-field imaging of retinal vasculature using optical coherence tomography-based microangiography provided by motion tracking",Journal of Biomedical Optics,2015年 6月23日,Vol. 20, No. 6,pp. 066008-1 - 066008-9
CHOI June Woo et al.,"Improved microcirculation imaging of human skin in vino using optical microangiography with a correlation mapping mask",Journal of Biomedical Optics,2014年 3月12日,Vol. 19, No. 3,pp. 036010-1 - 036010-9
MAHMUD Sultan Mohammad et al.,"Review of speckle and phase variance optical coherence tomography to visualize microvascular networks",Jounal of Biomedical Optics,2013年 4月24日,Vol. 18, No. 5,pp. 050901-1 - 050901-13
CHOI June Woo et al.,"Improved microcirculation imaging of human skin in vino using optical microangiography with a correlation mapping mask",Journal of Biomedical Optics,2014年 3月12日,Vol. 19, No. 3,pp. 036010-1 - 036010-9
MAHMUD Sultan Mohammad et al.,"Review of speckle and phase variance optical coherence tomography to visualize microvascular networks",Jounal of Biomedical Optics,2013年 4月24日,Vol. 18, No. 5,pp. 050901-1 - 050901-13
Attorney, Agent or Firm:
Enami Tomokazu