US 11,961,166 B2
Information-adaptive regularization for iterative image reconstruction
Andre Frank Salomon, Aachen (DE); Andreas Goedicke, Aachen (DE); Chuanyong Bai, Solon, OH (US); and Andriy Andreyev, Willoughby Hills, OH (US)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Appl. No. 16/468,968
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Dec. 12, 2017, PCT No. PCT/EP2017/082298
§ 371(c)(1), (2) Date Jun. 12, 2019,
PCT Pub. No. WO2018/108848, PCT Pub. Date Jun. 21, 2018.
Claims priority of provisional application 62/433,981, filed on Dec. 14, 2016.
Prior Publication US 2019/0355158 A1, Nov. 21, 2019
Int. Cl. G06T 11/00 (2006.01); G01T 1/29 (2006.01); G06T 5/00 (2006.01)
CPC G06T 11/006 (2013.01) [G01T 1/2985 (2013.01); G06T 5/002 (2013.01); G06T 2207/10104 (2013.01); G06T 2207/20004 (2013.01); G06T 2207/20192 (2013.01); G06T 2210/41 (2013.01); G06T 2211/424 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An imaging device comprising:
a radiation detector array arranged to acquire imaging data;
a computer; and
a non-transitory storage medium storing instructions readable and executable by the computer to perform an image reconstruction method including:
performing iterative image reconstruction of the acquired imaging data to generate a reconstructed image; and
during the iterative image reconstruction, applying an edge preserving prior having a spatially varying edge preservation threshold, wherein a value of the edge preservation threshold at each image voxel depends on a noise metric in a local neighborhood of the image voxel.