Automatic Detection of Subsidence Troughs in SAR Interferograms Using Mathematical Morphology

Abstract

In this paper, an automatic algorithm for the detection of subsidence areas in SAR interferograms is proposed. It is based on the analysis of spatial distribution of the interferogram phase, and its coherence and entropy. The developed method was tested for differential interferograms generated on the basis of Sentinel-1 SAR images covering mining areas in South Poland. The obtained results were compared with those achieved using a method based on circular Gabor filters. Performed analysis revealed that the detection rate for the proposed method varied from 34% to 83%. It is an improved method based on Gabor filters that achieved a detection rate from 30% to 53%.

Long-term subsidence over the Upper Silesia Coal Basin identified on differential LIDAR (2012–2021) and InSAR (2015–2020) data

“…Also, the Up per Silesia Coal Ba sin (USCB) in Po land has been the sub ject of sim i lar re search since 1998 (Perski, 1998;Perski and Jura, 1999) and cur rently it is stud ied in sev eral cen tres in Po land, e.g. by Ilieva et al (2019), Paw³uszek-Filipiak and Borkowski (2020a), Sopata et al (2020), Witkowski et al (2021 and Dwornik et al (2021). In PGI-NRI stud ies on InSAR ground de for ma tion, mon i tor ing of the USCB started with the Terrafirma pro ject in 2005 (Graniczny et al, 2005) and over the years, a se ries of stud ies have been car ried out (Graniczny et al, 2007(Graniczny et al, , 2014Czarnogórska, 2010;Del Ventisette et al, 2013) dem on strat ing the suit abil ity of this method for this area.…”

Mining Technologies Innovative Development: Economic and Sustainable Outlook

“…During the experiments, satisfactory results were obtained, confirming the effectiveness of the innovative method of search and rescue actions in an underground mine proposed by the authors. Dwornik et al [25] proposed a new method for the automatic detection of disturbances in the Earth's surface, applicable in clusters of intensive mining, based on SAR interferograms. The authors describe the procedures and results of the application of coherence and entropy and the spatial distribution of the interferogram phase, which were applied within a area in mining areas in southern Poland (based on SAR Sentinel-1 images).…”

Mining Technologies Innovative Development: Industrial, Environmental and Economic Perspectives

“…This Special Issue of Energies contains the successful invited submissions [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] gathered in a book [21] on the subject area of "Mining Technologies Innovative Development".…”