A systematic review on recent developments in nonlocal and variational methods for SAR image despeckling

S Baraha, AK Sahoo, S Modalavalasa - Signal Processing, 2022 - Elsevier
Speckle is a granular deformity that frequently appears in images acquired through coherent
imaging sensors such as synthetic aperture radar (SAR). The existence of such noise in the …

Iterative robust graph for unsupervised change detection of heterogeneous remote sensing images

Y Sun, L Lei, D Guan, G Kuang - IEEE Transactions on Image …, 2021 - ieeexplore.ieee.org
This work presents a robust graph mapping approach for the unsupervised heterogeneous
change detection problem in remote sensing imagery. To address the challenge that …

Structured graph based image regression for unsupervised multimodal change detection

Y Sun, L Lei, X Tan, D Guan, J Wu, G Kuang - ISPRS Journal of …, 2022 - Elsevier
Change detection for multimodal remote sensing images is an important and challenging
research topic with a wide range of applications in disaster assessment and environmental …

Synthetic aperture radar image and its despeckling using variational methods: A Review of recent trends

S Baraha, AK Sahoo - Signal Processing, 2023 - Elsevier
Synthetic aperture radar (SAR) has drawn significant interest from the remote sensing
community due to its ability to provide high-resolution images irrespective of weather and …

SAR image speckle filtering with context covariance matrix formulation and similarity test

SW Chen - IEEE Transactions on Image Processing, 2020 - ieeexplore.ieee.org
Speckle filtering of synthetic aperture radar (SAR) image is a necessary pre-processing for
many subsequent applications. The challenge lies in how to adaptively select a sufficient …

Superpixel generation for SAR imagery based on fast DBSCAN clustering with edge penalty

L Zhang, S Lu, C Hu, D Xiang, T Liu… - IEEE Journal of Selected …, 2021 - ieeexplore.ieee.org
In this article, we propose an adaptive superpixel generation algorithm for synthetic aperture
radar (SAR) imagery, which is implemented based on fast density-based spatial clustering of …

Generalized MSFA engineering with structural and adaptive nonlocal demosaicing

L Bian, Y Wang, J Zhang - IEEE Transactions on Image …, 2021 - ieeexplore.ieee.org
The emerging multispectral-filter-array (MSFA) cameras require generalized demosaicing
for MSFA engineering. The existing interpolation, compressive sensing and deep learning …

SAR image speckle reduction based on nonconvex hybrid total variation model

Y Sun, L Lei, D Guan, X Li… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Speckle noise inherent in synthetic aperture radar (SAR) images seriously affects the visual
effect and brings great difficulties to the postprocessing of the SAR image. Due to the edge …

SAR image change detection based on nonlocal low-rank model and two-level clustering

Y Sun, L Lei, D Guan, X Li… - IEEE Journal of Selected …, 2020 - ieeexplore.ieee.org
Change detection (CD) has found a wide range of applications in many fields. In this article,
we propose a novel nonlocal low-rank (NLR) based method for multitemporal synthetic …

SPB-Net: A deep network for SAR imaging and despeckling with downsampled data

K Xiong, G Zhao, Y Wang, G Shi - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Synthetic aperture radar (SAR) typically faces both large-scale data and speckle noise
problems, which, respectively, induce enormous strains on transmission and storage and …