Targets, fixtures, and workflows for calibrating an endoscopic camera

摘要

The present disclosure relates to calibration assemblies and methods for use with an imaging system, such as an endoscopic imaging system. A calibration assembly includes: an interface for constraining engagement with an endoscopic imaging system; a target coupled with the interface on as to be within the field of view of the imaging system, the target including multiple of markers having calibration features that include identification features; and a processor configured to identify from first and second images obtained at first and second relative spatial arrangements between the imaging system and the target, respectively, at least some of the markers from the identification features, and using the identified markers and calibration feature positions within the images to generate calibration data.

主权项

1. An endoscope calibration fixture, the fixture comprising:
a first portion adapted to receive an endoscope; and a second portion adapted to receive a calibration target; wherein the first and second portions are rotatably coupled to each other, wherein the endoscope is positioned to capture an image of the calibration target when the endoscope is received by the first portion and the calibration target is received by the second portion, and wherein the image of the calibration target rotates in an image plane of the endoscope as one of the first and second portions rotates relative to the other one.