US 12,423,784 B2
Image processing method, program, ophthalmic 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 Feb. 21, 2024, as Appl. No. 18/582,890.
Application 18/582,890 is a continuation of application No. 17/025,575, filed on Sep. 18, 2020, granted, now 11,941,788.
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 2024/0188814 A1, Jun. 13, 2024
Int. Cl. G06T 7/62 (2017.01); A61B 3/00 (2006.01); A61B 3/12 (2006.01); A61B 3/14 (2006.01); G06T 5/77 (2024.01); G06T 7/00 (2017.01); G06T 7/70 (2017.01)
CPC G06T 5/77 (2024.01) [A61B 3/0025 (2013.01); A61B 3/0058 (2013.01); A61B 3/12 (2013.01); A61B 3/14 (2013.01); G06T 7/0012 (2013.01); G06T 7/62 (2017.01); G06T 7/70 (2017.01); G06T 2207/10024 (2013.01); G06T 2207/10048 (2013.01); G06T 2207/10152 (2013.01); G06T 2207/30041 (2013.01); G06T 2207/30101 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An image processing method comprising:
acquiring a fundus image including retinal blood vessels and a choroidal blood vessel by photographing a fundus using a light that passes through a retia and reaches a choroid,
extracting the retinal blood vessels from the fundus image, and
generating a choroidal blood vessel image by processing pixels at the positions of the retinal blood vessels in the fundus image.