Articles with "sar image" as a keyword



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SAR Image Despeckling by Using Nonlocal Sparse Coding Model

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Published in 2018 at "Circuits, Systems, and Signal Processing"

DOI: 10.1007/s00034-017-0704-5

Abstract: Based on the key observation that the coding residuals between the recovered sparse codes of the noisy SAR image and those of the clean SAR image are sparse, we propose a sparse representation-based despeckling algorithm… read more here.

Keywords: image; using nonlocal; sparse; image despeckling ... See more keywords

SAR image edge detection via sparse representation

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Published in 2018 at "Soft Computing"

DOI: 10.1007/s00500-017-2505-y

Abstract: In this paper, we propose a new synthetic aperture radar (SAR) image detection algorithm based on the de-noising algorithm via the sparse representation and a new morphology edge detector. Firstly, we apply the Shearlet transform… read more here.

Keywords: sparse representation; detection; sar image; edge ... See more keywords
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Automatic registration of a single SAR image and GIS building footprints in a large-scale urban area

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Published in 2020 at "Isprs Journal of Photogrammetry and Remote Sensing"

DOI: 10.1016/j.isprsjprs.2020.09.016

Abstract: Existing techniques of 3-D reconstruction of buildings from SAR images are mostly based on multibaseline SAR interferometry, such as PSI and SAR tomography (TomoSAR). However, these techniques require tens of images for a reliable reconstruction,… read more here.

Keywords: image; gis; registration; building footprints ... See more keywords
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WITHDRAWN: SAR image classification with a sample reusable domain adaptation algorithm based on SVM classifier

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Published in 2017 at "Pattern Recognition"

DOI: 10.1016/j.patcog.2017.07.032

Abstract: This article has been withdrawn at the request of the editor and publisher. The publisher regrets that an error occurred which led to the premature publication of this paper. This error bears no reflection on… read more here.

Keywords: classification sample; withdrawn sar; withdrawn; image classification ... See more keywords

Multithresholding techniques in SAR image classification

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Published in 2021 at "Remote Sensing Applications: Society and Environment"

DOI: 10.1016/j.rsase.2021.100540

Abstract: Abstract Beyond bilevel segmentation, multithresholding (MT) is a powerful technique that is seldom considered in image analysis. In active imaging techniques, however, MT appears as a significant alternative due to its obliviousness to the inherent… read more here.

Keywords: multithresholding techniques; techniques sar; image classification; image ... See more keywords

Research on SAR image quality evaluation method based on improved harris hawk optimization algorithm and XGBoost

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Published in 2024 at "Scientific Reports"

DOI: 10.1038/s41598-024-79674-8

Abstract: Synthetic aperture radar (SAR) is crucial for military reconnaissance and remote sensing, but image quality can be affected by various factors, impacting target detection performance. Thus, pre-evaluation of SAR image quality is essential to filter… read more here.

Keywords: quality; image; sar image; image quality ... See more keywords

Entropy-score-based feature selection for moment-based SAR image classification

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Published in 2018 at "Electronics Letters"

DOI: 10.1049/el.2017.4419

Abstract: Entropy score is defined to be a metric indicating the class separation, which is then used in feature selection process to improve the moment-based classification performance of synthetic aperture radar (SAR) images. Feature extraction is… read more here.

Keywords: moment; feature selection; feature; sar image ... See more keywords

Sparse coding of 2D-slice Zernike moments for SAR ATR

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Published in 2017 at "International Journal of Remote Sensing"

DOI: 10.1080/01431161.2016.1266107

Abstract: ABSTRACT In this article, a new type of feature, named two-dimensional (2D)-slice Zernike moments, is proposed for synthetic aperture radar (SAR) automatic target recognition (ATR). Target features play an extremely important role in the ATR… read more here.

Keywords: zernike moments; slice zernike; sar image; target ... See more keywords

Perceptual hashing for SAR image segmentation

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Published in 2018 at "International Journal of Remote Sensing"

DOI: 10.1080/01431161.2018.1552812

Abstract: ABSTRACT Image segmentation is an important step in the implementation of the interpretation of synthetic aperture radar (SAR) image due to speckle. This article proposes a SAR image segmentation method based on perceptual hashing. The… read more here.

Keywords: image; hashing sar; segmentation; sar image ... See more keywords

OGRN: optical-guided residual dense network for SAR image super-resolution reconstruction network

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Published in 2024 at "International Journal of Remote Sensing"

DOI: 10.1080/01431161.2024.2408039

Abstract: ABSTRACT Although Convolutional Neural Networks have significantly improved the development of SAR image super-resolution (SR) technology in recent years, it is a very challenging problem to reconstruct SAR image with large-scale factors, such as ×4… read more here.

Keywords: image; sar image; reconstruction; optical image ... See more keywords

SAR image despeckling with a multilayer perceptron neural network

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Published in 2019 at "International Journal of Digital Earth"

DOI: 10.1080/17538947.2018.1447032

Abstract: ABSTRACT Speckle noise in synthetic-aperture radar (SAR) images severely hinders remote sensing applications; therefore, the appropriate removal of speckle noise is crucial. This paper elaborates on the multilayer perceptron (MLP) neural-network model for SAR image… read more here.

Keywords: image; network; multilayer perceptron; image despeckling ... See more keywords