| Full text | |
| Author(s): |
Fonseca, Rodney V.
;
Negri, Rogerio G.
;
Pinheiro, Aluisio
;
Atto, Abdourrahmane Mahamane
Total Authors: 4
|
| Document type: | Journal article |
| Source: | IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING; v. 16, p. 11-pg., 2023-01-01. |
| Abstract | |
In this article, we introduce the wavelet energies correlation screening (WECS), an unsupervised method to detect spatio-temporal changes on multitemporal SAR images. The procedure is based on wavelet approximation for the multitemporal images, wavelet energy apportionment, and ultrahigh-dimensional correlation screening for the wavelet coefficients. We show WECS's performance on simulated multitemporal image data. We also evaluate the proposed method on a time series of 85 Sentinel-1 images of a forest region at the border of Brazil and French Guiana. Comparisons with well-known change detection methods found in the literature highlight the proposal's superiority in terms of change detection accuracy. Additionally, the introduced method has simple architecture and low computational cost. (AU) | |
| FAPESP's process: | 21/04513-9 - Wavelet feature screening in high dimensional regression models |
| Grantee: | Rodney Vasconcelos Fonseca |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 18/04654-9 - Time series, wavelets and high dimensional data |
| Grantee: | Pedro Alberto Morettin |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 16/24469-6 - Wavelet Funcional Data Analysis: Foundations and Applications |
| Grantee: | Rodney Vasconcelos Fonseca |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 21/01305-6 - Theoretical advances on anomaly detection and environmental monitoring systems building |
| Grantee: | Rogério Galante Negri |
| Support Opportunities: | Regular Research Grants |