US 11,941,800 B2
Ophthalmologic information processing apparatus, ophthalmologic apparatus, ophthalmologic information processing method, and recording medium
Ryoichi Hirose, Tokyo (JP); Tatsuo Yamaguchi, Warabi (JP); and Suguru Miyagawa, Tokyo (JP)
Assigned to TOPCON CORPORATION, Tokyo (JP)
Filed by TOPCON CORPORATION, Tokyo (JP)
Filed on Nov. 17, 2020, as Appl. No. 17/099,828.
Application 17/099,828 is a continuation of application No. PCT/JP2019/050608, filed on Dec. 24, 2019.
Claims priority of application No. 2019-034433 (JP), filed on Feb. 27, 2019.
Prior Publication US 2021/0073988 A1, Mar. 11, 2021
Int. Cl. G06K 9/00 (2022.01); A61B 3/00 (2006.01); A61B 3/10 (2006.01); A61B 3/12 (2006.01); G06T 3/20 (2006.01); G06T 7/00 (2017.01)
CPC G06T 7/0012 (2013.01) [A61B 3/0025 (2013.01); A61B 3/0041 (2013.01); A61B 3/102 (2013.01); A61B 3/1225 (2013.01); G06T 3/20 (2013.01); G06T 2207/10101 (2013.01); G06T 2207/30041 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An ophthalmologic information processing apparatus for analyzing an image of a subject's eye formed by arranging a plurality of A-scan images acquired by performing an Optical Coherence Tomography (OCT) scan on an inside the subject's eye with measurement light deflected around a scan center position, the ophthalmologic information processing apparatus comprising processing circuitry configured to:
transform pixel positions in the image into transformation positions along traveling directions of the measurement light passing through the scan center position by transforming pixel positions in each A-scan image into transformation positions along the traveling directions of the measurement light used to form the A-scan image;
specify a layer region by analyzing the image in which the pixel position has been transformed; and
specify a normal direction of the layer region.