Results 91 to 100 of about 3,144 (202)

CFAR-Based Adaptive PolSAR Speckle Filter

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2018
The patch-based polarimetric synthetic aperture radar (PolSAR) nonlocal means (NLM) speckle filters are efficacious in noise suppression and detail preservation, but are computationally inefficient. The objective of this paper is to develop a filter that provides better noise suppression and edge preservation along with reduced computational complexity
Rakesh Sharma, Rajib Kumar Panigrahi
openaire   +2 more sources

A Review on PolSAR for FOPEN Applications

open access: yes
Abstract: PolSAR has become a significant focus of research due to its wide-ranging applications in structural monitoring, foliage penetration, and target detection. Despite its potential, work on FOPEN remains limited and often inconsistent, largely because forest environments differ considerably in structure and density. Integrating PolSAR with FOPEN
Afaan Shaikh   +5 more
openaire   +4 more sources

CV-CPKAN: Complex-Valued Convolutional Kolmogorov–Arnold Framework for PolSAR Image Classification

open access: yesRemote Sensing
Deep learning has significantly advanced PolSAR image processing, with a growing trend of integrating mathematical theories into deep neural networks to enhance their capabilities with regard to complex data.
Zuzheng Kuang   +4 more
doaj   +1 more source

Few-Shot PolSAR Ship Detection Based on Polarimetric Features Selection and Improved Contrastive Self-Supervised Learning

open access: yes, 2023
Deep learning methods have been widely studied in the field of polarimetric synthetic aperture radar (PolSAR) ship detection over the past few years. However, the backscattering of manmade targets, including ships, is sensitive to the relative geometry ...
Weixing Qiu, Zongxu Pan, Jianwei Yang
core   +1 more source

PolSAR Image Feature Extraction via Co-Regularized Graph Embedding

open access: yes, 2020
Dimensionality reduction (DR) methods based on graph embedding are widely used for feature extraction. For these methods, the weighted graph plays a vital role in the process of DR because it can characterize the data’s structure information ...
Xiangli Nie, Xiayuan Huang, Hong Qiao
core   +1 more source

A Quality Assessment Method Based on Common Distributed Targets for GF-3 Polarimetric SAR Data

open access: yesSensors, 2018
The GaoFen-3 (GF-3) satellite, launched on 10 August 2016, is the first C-band polarimetric synthetic aperture radar (PolSAR) satellite in China. The PolSAR system of GF-3 can collect a significant wealth of information for geophysical research and ...
Sha Jiang   +3 more
doaj   +1 more source

Comparison of PolSAR Speckle Filtering Techniques (1, 2)

open access: yes, 2008
— The objective of this paper is to compare the most widely used and the most recent speckle polarimetric synthetic aperture radar (PolSAR) filters. Two new conceptual approaches in PolSAR filtering are evaluated on simulated PolSAR images.
Grégory Farage
core  

PolSAR-MPIformer: A Vision Transformer Based on Mixed Patch Interaction for Dual-Frequency PolSAR Image Adaptive Fusion Classification

open access: yes
Vision transformer (ViT) provides new ideas for polarization synthetic aperture radar (PolSAR) image classification due to its advantages in learning global-spatial information.
Xinyue Xin   +5 more
core   +1 more source

PolSAR Image Classification with Active Complex-Valued Convolutional-Wavelet Neural Network and Markov Random Fields

open access: yesRemote Sensing
PolSAR image classification has attracted extensive significant research in recent decades. Aiming at improving PolSAR classification performance with speckle noise, this paper proposes an active complex-valued convolutional-wavelet neural network by ...
Lu Liu, Yongxiang Li
doaj   +1 more source

Dual-Channel PolSAR Speckle Reduction Using Non-Local Means Filter [PDF]

open access: yes, 2016
Intelligent speckle filters promote the efficient usage of PolSAR data. It has been validated that non-local means filter is capable of reducing noise while preserving details.
Schmitt, Andreas   +2 more
core  

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