Insertion portion detection device and insertion portion detection system
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United States of America Patent
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Jul 29, 2014
filing date -
Jan 31, 2012
priority date (Note) -
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Abstract
An insertion portion detection device provided with a light source unit which emits measuring beam to an outer circumferential surface of a cylindrical shape of an insertion portion to be inserted into an insertion target and to be a detection target, an optical pattern detection unit which receives reflected light from the outer circumferential surface and which sequentially acquires image data in a predetermined range of the outer circumferential surface including given optical patterns so that at least some of the optical patterns correspond to the image data, and a displacement amount calculation unit which detects a corresponding optical pattern from the image data and calculates at least one of an insertion amount of the insertion portion and an amount of rotation around the central axis of the cylindrical shape.
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