US 12,408,815 B2
Tomographic image processing device, tomographic image processing method, program, information recording medium, and puncture member
Yosky Kataoka, Saitama (JP); Sally Danno, Saitama (JP); Toshiyuki Goto, Saitama (JP); Kazuo Funabiki, Saitama (JP); Ichiro Nakahara, Saitama (JP); and Akira Mizoguchi, Saitama (JP)
Assigned to RIKEN, Saitama (JP)
Appl. No. 18/553,340
Filed by RIKEN, Saitama (JP)
PCT Filed Mar. 30, 2022, PCT No. PCT/JP2022/015824
§ 371(c)(1), (2) Date Sep. 29, 2023,
PCT Pub. No. WO2022/210834, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 2021-060196 (JP), filed on Mar. 31, 2021.
Prior Publication US 2024/0206703 A1, Jun. 27, 2024
Int. Cl. A61B 1/00 (2006.01); G01N 21/64 (2006.01); G06T 7/00 (2017.01); G06T 11/00 (2006.01)
CPC A61B 1/000095 (2022.02) [G01N 21/6458 (2013.01); G06T 7/0012 (2013.01); G06T 11/003 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A tomographic image processing device comprising:
an acquirer that acquires a moving image in which a cross section of a living body is captured via a light-receiving surface of a puncture member that punctures the living body;
a corrector that performs image correction of each frame of the acquired moving image, based on a shape of the light-receiving surface;
a tracker that tracks a candidate for a picture of tissue of the living body that satisfies a desired tracking condition in the moving image on which the image correction is performed;
an estimator that estimates, based on a movement vector of the tracked candidate, a representative vector in the moving image on which the image correction is performed;
an extractor that extracts a candidate in which the movement vector is similar to the estimated representative vector;
a calculator that calculates, based on a drawing position in a frame in which a picture of the extracted candidate is drawn in the moving image and an order of the frame, an arrangement position in which the picture of the extracted candidate needs to be arranged; and
a generator that generates a pseudo tomographic image of the living body by drawing the picture of the extracted candidate in the calculated arrangement position.