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1. (WO2018008637) METHOD FOR ESTIMATING ABNORMAL PART OF OBJECT BEING SURVEYED

Pub. No.:    WO/2018/008637    International Application No.:    PCT/JP2017/024502
Publication Date: Fri Jan 12 00:59:59 CET 2018 International Filing Date: Wed Jul 05 01:59:59 CEST 2017
IPC: G01N 22/02
E01C 23/01
G01N 22/00
G01S 13/88
Applicants: THE UNIVERSITY OF TOKYO
国立大学法人東京大学
Inventors: MIZUTANI Tsukasa
水谷 司
Title: METHOD FOR ESTIMATING ABNORMAL PART OF OBJECT BEING SURVEYED
Abstract:
The present invention addresses the problem of providing a method for estimating an abnormal part of an object being surveyed, wherein the method makes it possible to estimate accurately and in a short time an abnormal part inside the object being surveyed. As a means of overcoming the problem, the method according to the present invention includes: a step of receiving a reflected wave of an electromagnetic wave from inside the object being surveyed, and storing reflected wave data corresponding to a unit measurement sector (12); a step of calculating a degree of coincidence between the reflected wave data relating to a unit measurement sector in an arbitrarily defined position, and the reflected wave data relating to a different unit measurement sector in another position in a scanning direction, and on the basis of the degree of coincidence, estimating a normal unit measurement sector inside the object being surveyed; a step of using data corresponding to the normal unit measurement sector as reference reflected wave data, and calculating a degree of coincidence between the reflected wave data and the reference reflected wave data; and a step of estimating an abnormal sector on the basis of the degree of coincidence with the reference reflected wave data.