US 12,440,100 B2
Image generation device, program, and image generation method
Shuichi Makita, Tsukuba (JP); and Yoshiaki Yasuno, Tsukuba (JP)
Assigned to University of Tsukuba, Tsukuba (JP)
Appl. No. 17/999,999
Filed by University of Tsukuba, Tsukuba (JP)
PCT Filed May 25, 2021, PCT No. PCT/JP2021/019771
§ 371(c)(1), (2) Date Nov. 28, 2022,
PCT Pub. No. WO2021/241564, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 2020-094055 (JP), filed on May 29, 2020.
Prior Publication US 2023/0200643 A1, Jun. 29, 2023
Int. Cl. A61B 3/12 (2006.01); A61B 3/00 (2006.01); A61B 3/10 (2006.01)
CPC A61B 3/1241 (2013.01) [A61B 3/0025 (2013.01); A61B 3/102 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An image generation device comprising:
a tomographic image acquisition unit configured to acquire an OCTA tomographic image that captures a distribution of a blood flow of an object;
a light attenuation acquisition unit configured to acquire a light attenuation of measurement light emitted to the object in a direction in which the OCTA tomographic image is layered; and
an image generation unit configured to generate a light attenuation-blood flow distribution chart indicating a distribution of the light attenuation based on the acquired OCTA tomographic image and the light attenuation,
wherein the light attenuation acquisition unit includes:
an OCT image acquisition unit configured to acquire an OCT image that captures the object,
an OCT intensity signal calculation unit configured to calculate an OCT intensity signal based on the acquired OCT image, and
a light attenuation calculation unit configured to calculate the light attenuation based on the calculated OCT intensity signal.