US 11,941,825 B2
Method and apparatus for registering image volumes
Ewan Hemingway, Edinburgh (GB); Paul Thomson, Edinburgh (GB); and John Hipwell, Edinburgh (GB)
Assigned to CANON MEDICAL SYSTEMS CORPORATION, Otawara (JP)
Filed by CANON MEDICAL SYSTEMS CORPORATION, Otawara (JP)
Filed on Oct. 28, 2021, as Appl. No. 17/452,582.
Prior Publication US 2023/0138451 A1, May 4, 2023
Int. Cl. G06T 7/30 (2017.01); G06T 3/20 (2006.01); G06T 3/60 (2006.01); G06T 7/68 (2017.01)
CPC G06T 7/30 (2017.01) [G06T 3/20 (2013.01); G06T 3/60 (2013.01); G06T 7/68 (2017.01); G06T 2207/10081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/30016 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A medical image processing apparatus comprising processing circuitry configured to:
receive first volume data and second volume data;
set a first symmetry plane for the first volume data and a second symmetry plane for the second volume data; and
conduct a registration of the first volume data and the second volume data based on the first symmetry plane and the second symmetry plane, wherein
the registration comprises an alignment procedure and a constrained registration procedure, and
the alignment procedure comprises determining:
a first translation corresponding to a first direction;
a second rotation angle having a rotational axis corresponding to a second direction, wherein the second direction is orthogonal to the first direction; and
a third rotation angle having a rotational axis corresponding to a third direction, wherein the third direction is orthogonal to the first direction and to the second direction.