Results 31 to 40 of about 3,144 (202)

An active deep learning approach for minimally supervised polsar image classification [PDF]

open access: yes, 2019
Recently, deep neural networks have received intense interests in polarimetric synthetic aperture radar (PolSAR) image classification. However, its success is subject to the availability of large amounts of annotated data which require great efforts of ...
Xue, Yong
core   +1 more source

Fisher Vectors for PolSAR Image Classification [PDF]

open access: yesIEEE Geoscience and Remote Sensing Letters, 2017
In this letter, we study the application of the Fisher vector (FV) to the problem of pixelwise supervised classification of polarimetric synthetic aperture radar images. This is a challenging problem since information in those images is encoded as complex-valued covariance matrices. We observe that the real parts of these matrices preserve the positive
Javier A. Redolfi   +2 more
openaire   +3 more sources

Entropy-Based Statistical Analysis of PolSAR Data [PDF]

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2013
Images obtained from coherent illumination processes are contaminated with speckle noise, with polarimetric synthetic aperture radar (PolSAR) imagery as a prominent example. With an adequacy widely attested in the literature, the scaled complex Wishart distribution is an acceptable model for PolSAR data.
Alejandro César Frery   +2 more
openaire   +4 more sources

A New Parallel Dual-Channel Fully Convolutional Network Via Semi-Supervised FCM for PolSAR Image Classification

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Convolutional neural network (CNN) has achieved remarkable success in polarimetric synthetic aperture radar (PolSAR) image classification. However, the PolSAR image classification is a pixelwise prediction assignment.
Feng Zhao   +3 more
doaj   +1 more source

The Generalized Statistical Complexity of PolSAR Data

open access: yesCoRR, 2014
This paper presents and discusses the use of a new feature for PolSAR imagery: the Generalized Statistical Complexity. This measure is able to capture the disorder of the data by means of the entropy, as well as its departure from a reference distribution.
Alejandro César Frery   +2 more
openaire   +4 more sources

SUPERPIXEL SEGMENTATION FOR POLSAR IMAGES BASED ON HEXAGON INITIALIZATION AND EDGE REFINEMENT [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Superpixel segmentation for PolSAR images can heavily decrease the number of primitives for subsequent interpretation while reducing the impact of speckle noise.
M. Li   +5 more
doaj   +1 more source

Adaptive Speckle Filter for Multi-Temporal PolSAR Image with Multi-Dimensional Information Fusion

open access: yesRemote Sensing, 2023
Polarimetric synthetic aperture radar (PolSAR) is an important sensor for earth observation. Multi-temporal PolSAR images obtained by successive observations of the region of interest contain rich polarimetric–temporal–spatial information of the land ...
Haoliang Li   +4 more
doaj   +1 more source

Robustness of PolSAR CS to Calibration Errors

open access: yes, 2023
Dropped-channel polarimetric synthetic aperture radar (PolSAR) compressive sensing (CS) reduces data storage/transmission and receiver hardware requirements by utilising antenna crosstalk and CS techniques to recover dropped channel(s).
Morrison, Jacob   +2 more
core   +1 more source

Turbo Speckle Filtering applied to PolSAR Data [PDF]

open access: yesIGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008
A new approach for speckle reduction in polarimetric synthetic aperture radar (PolSAR) images based on the turbo iterative principle is proposed. The turbo iterative algorithm shows high performances due to the propagation of the information between two complementary filters.
Gregory Farage   +3 more
openaire   +1 more source

TCSPANet: Two-Staged Contrastive Learning and Sub-Patch Attention Based Network for PolSAR Image Classification

open access: yesRemote Sensing, 2022
Polarimetric synthetic aperture radar (PolSAR) image classification has achieved great progress, but there still exist some obstacles. On the one hand, a large amount of PolSAR data is captured.
Yuanhao Cui   +4 more
doaj   +1 more source

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