Various disclosed embodiments provide systems and methods for determining precise
surgical instrument kinematic data, such as the
pose of the colonoscope when examining the
large intestine. The
pose may then be used in building a model inside the patient from which reference geometry, such as a centerline, and navigation feedback, such as an omission in viewing by the operator, may be generated. Some embodiments may also determine the suitability of the data frame to
downstream processing (e.g., downstream positioning and mapping operations) based on the intra-operative
field of view, such as whether the frame is undesirably obscured or depicts an obstacle.
Metrics or graphical feedback may then be presented to the operating surgeon or viewer of the surgical procedure, e.g., relating to one or more of the
surgical instrument movement relative to the centerline, the comprehensiveness of the examination by the operator, and the amount of undesired frames encountered during the examination.