GROUND MOVEMENT ANALYSIS DEVICE AND GROUND MOVEMENT ANALYSIS METHOD

WIPO Patent Application WO/2024/004215

A1

This ground movement analysis device comprises an inclination projecting unit (12) which converts LoS movement data acquired for each of a plurality of predetermined unit areas included in a region of interest into inclination movement data in a direction along an inclination direction of the region of interest, an offset correcting unit (13) which performs offset correction of the inclination movement data, and a hotspot extracting unit (14) which uses the offset-corrected inclination movement data to extract, as a movement hotspot, a region in which movement of the ground surface is greater than in a surrounding region, wherein the LoS movement data observed in an area having an undulating topography are converted into inclination movement data in a direction along the inclination direction of the undulations, and noisy data components are removed by means of the offset correction, after which the region having a large ground surface movement is extracted as the movement hotspot, thereby enabling the state of ground movements to be accurately captured, even in areas having an undulating topography.

ARYA ABHINANDAN (JP)
PAMUNGKAS BUJED (JP)
MISRA PRAKHAR (JP)
CHAVHAN RISHABH (JP)

PCT/JP2022/026506

January 04, 2024

July 01, 2022

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SYNSPECTIVE INC (JP)

G01S13/90; G01C7/02; G06T1/00

JP2020165746A	2020-10-08
JP2021056008A	2021-04-08
JP2017207457A	2017-11-24
JP2018054540A	2018-04-05
CN112904337A	2021-06-04

HIRATA, IKUSHI ET AL.: "Study of slope change detection function in SAR interferometry using ALS-2/PALSAR-2", JSECE PUBLICATION, no. 83, 16 May 2018 (2018-05-16), pages 711 - 712, XP009552054, ISSN: 2433-0477

TACHIBANA Kazuyuki (JP)

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