Systems and methods related to registration for image guided surgery

A method performed by a computing system, the method comprising:

• accessing a set of model points of a model of an anatomic structure of a patient, the model points being associated with a model space;
• collecting a set of measured points of the anatomic structure of the patient, the measured points being associated with a patient space;
• determining a region of interest in the model space;
• determining a comparison region in the model space;
• registering a first set of model points in the region of interest to the set of measured points to generate a first number of region of interest transformations, each with a corresponding set of initial parameters;
• registering a second set of the model points in the comparison region to the set of measured points to generate a first number of comparison region transformations corresponding to the first number of region of interest transformations respectively;
• and
• generating a registration quality indicator for the region of interest based on the first number of region of interest transformations and the first number of comparison region transformations.

A non-transitory machine-readable medium comprising a plurality of machine-readable instructions which, when executed by one or more processors, are adapted to cause the one or more processors to perform a method comprising:

• accessing a set of model points of a model of an anatomic structure of a patient, the model points being associated with a model space;
• collecting a set of measured points of the anatomic structure of the patient, the measured points being associated with a patient space;
• determining a region of interest in the model space;
• determining a comparison region in the model space;
• registering a first set of model points in the region of interest to the set of measured points to generate a first number of region of interest transformations, each with a corresponding set of initial parameters;
• registering a second set of the model points in the comparison region to the set of measured points to generate a first number of comparison region transformations corresponding to the first number of region of interest transformations respectively;
• and
• generating a registration quality indicator for the region of interest based on the first number of region of interest transformations and the first number of comparison region transformations.