US 12,167,892 B2
Ophthalmologic information processing apparatus, ophthalmologic apparatus, ophthalmologic information processing method, and recording medium
Ryoichi Hirose, Tokyo (JP); and Tatsuo Yamaguchi, Warabi (JP)
Assigned to TOPCON CORPORATION, Tokyo (JP)
Filed by TOPCON CORPORATION, Tokyo (JP)
Filed on Jan. 5, 2024, as Appl. No. 18/404,926.
Application 18/404,926 is a continuation of application No. 17/083,312, filed on Oct. 29, 2020, granted, now 11,980,416.
Application 17/083,312 is a continuation of application No. PCT/JP2019/051169, filed on Dec. 26, 2019.
Claims priority of application No. 2019-012330 (JP), filed on Jan. 28, 2019.
Prior Publication US 2024/0130612 A1, Apr. 25, 2024
Int. Cl. A61B 3/00 (2006.01); A61B 3/10 (2006.01)
CPC A61B 3/0025 (2013.01) [A61B 3/1005 (2013.01); A61B 3/102 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An ophthalmologic information processing apparatus for correcting an image of a subject's eye formed by arranging a plurality of A-scan images acquired by scanning inside the subject's eye with measurement light deflected around a scan center position, the ophthalmologic information processing apparatus comprising:
a specifying unit configured to specify a transformation position along a traveling direction of the measurement light passing through the scan center position, the transformation position corresponding to a pixel position in the image; and
a transforming unit configured to transform the pixel position into the transformation position specified by the specifying unit, wherein
when a scan radius in the traveling direction is “r”, a scan angle is “φ”, a depth range that can be measured by optical coherence tomography is “d”, and number of A-scan lines is “N”, the specifying unit is configured to specify the transformation position (X, Z), where the traveling direction of the measurement light, where the scan angle is 0 degrees, is Z direction and X direction is orthogonal to the Z direction, based on the pixel position (x, z) in the n-th A-scan line where B-scan direction is x direction and A-scan direction orthogonal to the x direction is z direction, according to equations (A) to (D) below

OG Complex Work Unit Math