	US 12,236,531 B2
	Meniscus projection plane setting apparatus, meniscus projection plane setting method, and meniscus projection plane setting program
Kenji Suzuki, Tokyo (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on May 22, 2022, as Appl. No. 17/750,382.
Application 17/750,382 is a continuation of application No. PCT/JP2020/039629, filed on Oct. 21, 2020.
Claims priority of application No. 2019-223582 (JP), filed on Dec. 11, 2019.
Prior Publication US 2022/0292779 A1, Sep. 15, 2022
Int. Cl. G06T 19/00 (2011.01); A61B 6/00 (2024.01); A61B 6/50 (2024.01); G06T 7/00 (2017.01); G06T 7/11 (2017.01); G06T 7/62 (2017.01)

CPC G06T 19/00 (2013.01) [A61B 6/505 (2013.01); A61B 6/5211 (2013.01); G06T 7/0012 (2013.01); G06T 7/11 (2017.01); G06T 7/62 (2017.01); G06T 2200/04 (2013.01); G06T 2207/10088 (2013.01); G06T 2207/30008 (2013.01); G06T 2210/41 (2013.01); G06T 2219/008 (2013.01)]

23 Claims

1. A meniscus projection plane setting apparatus comprising

at least one processor configured to:

acquire a three-dimensional image of a knee joint;

set a plane that approximates a joint surface of the knee joint as a projection plane for generating a projection image by projecting a meniscus at the knee joint included in the three-dimensional image; and

exclude, from among pixel positions on the joint surface, a pixel position whose distance from the projection plane is greater than or equal to a predetermined threshold and set a new projection plane.