Patent ID: 11896414
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 16:
17. A system for constructing three-dimensional volumetric data of a target area within a patient from two-dimensional (2D) images acquired via a rotatable imaging device, comprising:
a computing device configured to:
detect a most probable projection of a structure of markers as a whole on each image of at least a portion of a sequence of 2D images acquired via a rotatable imaging device;
estimate a pose of the rotatable imaging device for the at least the portion of the sequence of 2D images based on the most probable projection of the structure of markers as a whole on each image of the at least the portion of the sequence of 2D images, yielding estimated poses of the rotatable imaging device;
construct three-dimensional volumetric data of the target area from the at least the portion of the sequence of 2D images based on the respective estimated poses of the rotatable imaging device;
determine a distance between a medical device and a target appearing in the three-dimensional volumetric data; and
correct a display of the medical device with respect to the target based on the distance.