WATER LEVEL MEASUREMENT DEVICE AND SHORELINE EXTRACTION METHOD

Title:

WATER LEVEL MEASUREMENT DEVICE AND SHORELINE EXTRACTION METHOD

Document Type and Number:

WIPO Patent Application WO/2019/044040

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a water level measurement device and shoreline extraction method that make stable water level measurement possible. In the present invention, a pixel selection unit (11) selects a pixel (302) of interest from a designated area (301) designated from a captured image (300). An identification image extraction unit (12) extracts identification images (303, 304) in contact with the pixel of interest. An identification unit (13) calculates identification strengths indicating the degrees to which the areas corresponding to the identification images (303, 304) are water areas on the basis of the results of machine learning for identifying water areas and non-water areas. A shoreline extraction unit (14) uses the results from a learning unit (17) of machine learning for identifying water areas and non-water areas to extract a shoreline in the captured image on the basis of the identification strengths of the areas corresponding to the identification images (303, 304).

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Inventors:

MAEHARA HIDEAKI (JP)
WANG MENGXIONG (JP)
HINO MOMOYO (JP)
MISHIMA HIDETOSHI (JP)
UEDA EIJI (JP)
WADA TETSURO (JP)
TAIRA KENJI (JP)

Application Number:

PCT/JP2018/017766

Publication Date:

March 07, 2019

Filing Date:

May 08, 2018

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

G01F23/292

Domestic Patent References:

WO2016071281A1

2016-05-12

Foreign References:

JP2017146268A	2017-08-24
JP2016090279A	2016-05-23
JP6125137B1	2017-05-10
JP2012514751A	2012-06-28
JP2001281046A	2001-10-10

Other References: