US 12,243,166 B2
System and method for augmented intelligence in dental pattern recognition
Fabien Coulombe, Chelsea (CA); and Akshaykumar Ketankumar Patel, Ottawa (CA)
Filed by AICAD Dental Inc., Chelsea (CA)
Filed on Aug. 22, 2022, as Appl. No. 17/821,320.
Claims priority of provisional application 63/256,790, filed on Oct. 18, 2021.
Claims priority of provisional application 63/251,886, filed on Oct. 4, 2021.
Claims priority of provisional application 63/243,866, filed on Sep. 14, 2021.
Claims priority of provisional application 63/236,932, filed on Aug. 25, 2021.
Prior Publication US 2023/0066220 A1, Mar. 2, 2023
Int. Cl. G06T 17/20 (2006.01)
CPC G06T 17/20 (2013.01) [G06T 2210/41 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A computer-implemented method for dental object description comprising:
receiving, by a processor, a three dimensional (3D) mesh file representation of a dental object comprising a plurality of related surfaces;
extending a plurality of indexing rays from a reference locus through the 3D mesh file such that the indexing ray intersects with the plurality of related surfaces at a surface boundary;
creating a 2D descriptor matrix for each surface of the plurality of related surfaces by:
for each of the plurality of indexing rays, measuring a length from the reference locus to the surface boundary to generate a plurality of indexing ray lengths; and
storing the plurality of indexing ray lengths in a 2D matrix to create the 2D descriptor matrix of the surface; and
storing the 2D descriptor matrix for each surface of the plurality of related surfaces as a matrix descriptor stack,
wherein the cell of each row and column in each 2D descriptor matrix of the plurality of related surfaces corresponds with the same indexing ray such that the 2D descriptor matrix for each of the plurality of related surfaces is stacked in space.