US 11,941,788 B2
Image processing method, program, opthalmic device, and choroidal blood vessel image generation method
Mariko Hirokawa, Yokohama (JP)
Assigned to NIKON CORPORATION, Tokyo (JP)
Filed by NIKON CORPORATION, Tokyo (JP)
Filed on Sep. 18, 2020, as Appl. No. 17/025,575.
Application 17/025,575 is a continuation of application No. PCT/JP2019/011590, filed on Mar. 19, 2019.
Claims priority of application No. 2018-052246 (JP), filed on Mar. 20, 2018.
Prior Publication US 2021/0004939 A1, Jan. 7, 2021
Int. Cl. G06T 7/70 (2017.01); A61B 3/12 (2006.01); A61B 3/14 (2006.01); G06T 5/00 (2006.01); G06T 7/00 (2017.01)
CPC G06T 5/005 (2013.01) [A61B 3/12 (2013.01); A61B 3/14 (2013.01); G06T 7/0012 (2013.01); G06T 7/70 (2017.01); G06T 2207/10024 (2013.01); G06T 2207/30041 (2013.01); G06T 2207/30101 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An image processing method comprising:
acquiring a first fundus image obtained by photographing a fundus using first light having a first wavelength, and a second fundus image obtained by photographing the fundus using second light having a second wavelength that is shorter than the first wavelength;
identifying first positions in the first fundus image, the first positions corresponding to positions of retinal blood vessels appearing in the second fundus image; and
generating a choroidal blood vessel image by processing pixels at the first positions identified in the first fundus image.