Patent ID: 11950855
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A system comprising:
one or more processors; and
one or more processor-readable storage media storing instructions which, when executed by the one or more processors, cause performance of:
receiving, as input, a selection of a plurality of reference points within a 3D model of a luminal network to generate a reference airway tree within the 3D model of the luminal network;
dividing the 3D model of the luminal network and the reference airway tree into different regions of lungs;
assigning a weight to each region of the different regions of the lungs of the reference airway tree;
generating a survey airway tree based on the selection of the plurality of reference points of the reference airway tree;
dividing the survey airway tree into different regions of the lungs that are the same as the different regions of the lungs of the reference airway tree;
for each region of the different regions of the lungs of the survey airway tree, assigning a weight to each of a plurality of survey points located within that region;
determining, for each region of the respective different regions of the lungs of the reference airway tree and the survey airway tree, an alignment between the survey airway tree and the reference airway tree based on a weight assigned to that region of the reference airway tree and the weight assigned to each of the plurality of survey points located within that region of the survey airway tree; and
correcting a displacement between the survey airway tree and the reference airway tree based on the alignments.