US 11,721,017 B2
CT reconstruction quality control
Fedor Chelnokov, Khimki (RU); and Grant Karapetyan, Moscow (RU)
Assigned to James R. Glidewell Dental Ceramics, Inc., Newport Beach, CA (US)
Filed by James R. Glidewell Dental Ceramics, Inc., Newport Beach, CA (US)
Filed on Mar. 31, 2021, as Appl. No. 17/219,243.
Prior Publication US 2022/0318990 A1, Oct. 6, 2022
Int. Cl. G06T 7/00 (2017.01)
CPC G06T 7/0012 (2013.01) [G06T 2207/10081 (2013.01); G06T 2207/20021 (2013.01); G06T 2207/30036 (2013.01); G06T 2207/30168 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method of reconstruction quality control, comprising:
receiving a reconstructed volume of an object;
determining an air density and a material density from the reconstructed volume of the object;
subdividing the reconstructed volume into one or more blocks, each block comprising one or more voxels;
determining one or more contrast blocks within the reconstructed volume; and
determining a reconstruction quality based on the number of contrast blocks in the reconstructed volume.