| CPC G02B 6/3843 (2013.01) [G01M 11/37 (2013.01); G02B 6/3839 (2013.01)] | 15 Claims |
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1. A method for estimating an orientation of an optical fiber, comprising:
radiating light from a light source toward a side surface of the optical fiber;
capturing an image of the side surface of the optical fiber by receiving the light transmitted through the optical fiber at a plurality of pixels disposed along a direction intersecting a central axis of the optical fiber;
generating a luminance profile for the optical fiber based on a luminance value of light received by the plurality of pixels; and
estimating an orientation around the central axis of the optical fiber using the luminance profile,
wherein, in the estimating, the orientation around the central axis of the optical fiber is estimated by using the luminance profile of the optical fiber and a master luminance profile of a master optical fiber whose orientation around a central axis is known by observing an end face of the master optical fiber or whose orientation around a central axis is simulated.
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