Title:
MEASUREMENT ASSISTANCE DEVICE, ENDOSCOPE SYSTEM, PROCESSOR FOR ENDOSCOPE SYSTEM, AND MEASUREMENT ASSISTANCE METHOD
Document Type and Number:
WIPO Patent Application WO/2018/051679
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a measurement assistance device, an endoscope system, a processor for an endoscope system, and a measurement assistance method, whereby the size of a subject can be measured easily and with high precision. In the measurement assistance device pertaining to an embodiment of the present invention, the position of a spot formed by a measurement aid light is measured, information indicating the actual size of a subject is acquired on the basis of the measurement result, and a marker is generated and displayed, and there is therefore no need to gauge a distance, and measurement is easy. By appropriately setting the inclination angle of the measurement aid light, the measurement aid light can be prevented from being outside the field of view of an imaging optical system even when an observation distance is small, and the range of observation distances can be expanded. Furthermore, the optical axis of the measurement aid light has an inclination angle that is not zero degrees with respect to the optical axis of the imaging optical system when projected onto a plane including the optical axis of the imaging optical system, and high measurement precision and high sensitivity to change in the position of the spot with respect to a change in the observation distance are therefore obtained.
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Inventors:
SONODA SHINICHIRO (JP)
TATSUTA TAKEICHI (JP)
TATSUTA TAKEICHI (JP)
Application Number:
PCT/JP2017/028644
Publication Date:
March 22, 2018
Filing Date:
August 07, 2017
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
A61B1/00; A61B1/045; G01B11/02; G02B3/00; G02B23/24
Foreign References:
JPH03231622A | 1991-10-15 | |||
JPH07136101A | 1995-05-30 | |||
JPS6273223A | 1987-04-03 | |||
JPS6249208A | 1987-03-03 | |||
JPS5968318U | 1984-05-09 | |||
US20040242961A1 | 2004-12-02 | |||
JPH0542097A | 1993-02-23 | |||
JP2010063485A | 2010-03-25 | |||
JP2016106867A | 2016-06-20 | |||
JPH08201026A | 1996-08-09 | |||
JP2011000258A | 2011-01-06 |
Other References:
See also references of EP 3513703A4
Attorney, Agent or Firm:
MATSUURA, Kenzo (JP)
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