Patent ID: 8305432
Filing Date: 2012-11-06
Classification: A61B,G06K,G06T

Abstract:
1. A method comprising: acquiring an image of a calibration pattern using a scanning beam device wherein acquiring the image of the calibration pattern comprises scanning a cantilevered optical fiber in a scan pattern including moving the cantilevered optical fiber within a Q factor of a resonant frequency of the cantilevered optical fiber, wherein during the scanning an actual position of the cantilevered optical fiber differs from an expected position of the cantilevered optical fiber; comparing the acquired image with a representation of the calibration pattern; calibrating the scanning beam device based on the comparison, wherein calibrating the scanning beam device at least partially accounts for the difference between the actual and expected positions of the cantilevered optical fiber during the scanning; and repeating said acquiring and said comparing one or more times until a comparison indicates that an acquired image and the representation of the calibration pattern match within a threshold tolerance.