Synthetic Aperture Radar Image Change Detection Based on Principal Component Analysis and Two-Level Clustering

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(11), P. 1861 - 1861

Published: May 23, 2024

Synthetic aperture radar (SAR) change detection provides a powerful tool for continuous, reliable, and objective observation of the Earth, supporting wide range applications that require regular monitoring assessment changes in natural built environment. In this paper, we introduce novel SAR image method based on principal component analysis two-level clustering. First, two difference images log-ratio mean-ratio operators are computed, then fusion model is used to fuse images, new generated. To incorporate contextual information during feature extraction phase, Gabor wavelets obtain representation across multiple scales orientations. The maximum magnitude all orientations at each scale concatenated form vector. Following this, cascading clustering algorithm developed within discriminative space by merging first-level fuzzy c-means with second-level neighbor rule. Ultimately, combination changed unchanged results produces final map. Five datasets experiment, show our has significant advantages detection.

Language: Английский

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Infrared and Visible Image Fusion via Sparse Representation and Guided Filtering in Laplacian Pyramid Domain

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(20), P. 3804 - 3804

Published: Oct. 13, 2024

The fusion of infrared and visible images together can fully leverage the respective advantages each, providing a more comprehensive richer set information. This is applicable in various fields such as military surveillance, night navigation, environmental monitoring, etc. In this paper, novel image method based on sparse representation guided filtering Laplacian pyramid (LP) domain introduced. source are decomposed into low- high-frequency bands by LP, respectively. Sparse has achieved significant effectiveness fusion, it used to process low-frequency band; excellent edge-preserving effects effectively maintain spatial continuity band. Therefore, combined with weighted sum eight-neighborhood-based modified (WSEML) bands. Finally, inverse LP transform reconstruct fused image. We conducted simulation experiments publicly available TNO dataset validate superiority our proposed algorithm fusing images. Our preserves both thermal radiation characteristics detailed features

Language: Английский

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A deep learning and image enhancement based pipeline for infrared and visible image fusion

Neurocomputing, Journal Year: 2024, Volume and Issue: 578, P. 127353 - 127353

Published: Feb. 10, 2024

Language: Английский

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Fractal Dimension-Based Multi-Focus Image Fusion via Coupled Neural P Systems in NSCT Domain

Fractal and Fractional, Journal Year: 2024, Volume and Issue: 8(10), P. 554 - 554

Published: Sept. 25, 2024

In this paper, we introduce an innovative approach to multi-focus image fusion by leveraging the concepts of fractal dimension and coupled neural P (CNP) systems in nonsubsampled contourlet transform (NSCT) domain. This method is designed overcome challenges posed limitations camera lenses depth-of-field effects, which often prevent all parts a scene from being simultaneously focus. Our proposed technique employs CNP with local topology-based model merge low-frequency components effectively. Meanwhile, for high-frequency components, utilize spatial frequency dimension-based focus measure (FDFM) achieve superior performance. The effectiveness validated through extensive experiments conducted on three benchmark datasets: Lytro, MFI-WHU, MFFW. results demonstrate superiority our method, showcasing its potential significantly enhance clarity across entire scene. algorithm has achieved advantageous values metrics QAB/F, QCB, QCV, QE, QFMI, QG, QMI, QNCIE.

Language: Английский

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Study on the extraction method of Glycyrrhiza uralensis Fisch. distribution area based on Gaofen-1 remote sensing imagery: a case study of Dengkou county

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: March 7, 2025

Glycyrrhiza uralensis Fisch., a perennial medicinal plant with robust root system, plays significant role in mitigating land desertification when cultivated extensively. This study investigates Dengkou County, semi-arid region, as the research area. First, reflectance differences of feature types, and importance bands were evaluated by using random forest (RF) algorithm. Second, after constructing G. vegetation index (GUVI), recognition accuracy was compared between RF classification model constructed based on January-December GUVI common indices set support vector machine (SVM) set. Finally, spectral characteristics other types under 2022 analyzed, historical distribution identified mapped. The results demonstrated that blue near-infrared are particularly for distinguishing . Incorporating year-round (January-December) data significantly improved identification accuracy, achieving producer’s 97.26%, an overall 93.00%, Kappa coefficient 91.38%, user’s 97.32%. Spectral analysis revealed distinct different years types. From 2014 to 2022, expanded from northeast County central southwestern regions, transitioning small, scattered patches larger, concentrated areas. highlights effectiveness models identifying , demonstrating superior performance alternative sets or algorithms. However, generalizability may be limited due influence natural anthropogenic factors Therefore, regional adjustments optimization parameters necessary. provides valuable reference employing remote sensing technology accurately map current regions similar environmental conditions.

Language: Английский

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MERFusion: A multiscale edge-preserving filter combined with Retinex enhancement for infrared and visible image fusion

Optics & Laser Technology, Journal Year: 2025, Volume and Issue: 188, P. 112823 - 112823

Published: April 4, 2025

Language: Английский

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Robust Infrared–Visible Fusion Imaging with Decoupled Semantic Segmentation Network

Sensors, Journal Year: 2025, Volume and Issue: 25(9), P. 2646 - 2646

Published: April 22, 2025

The fusion of infrared and visible images provides complementary information from both modalities has been widely used in surveillance, military, other fields. However, most the available methods have only evaluated with subjective metrics visual quality fused images, which are often independent following relevant high-level tasks. Moreover, as a useful technique especially low-light scenarios, effect conditions on result not well-addressed yet. To address these challenges, decoupled semantic segmentation-driven image network is proposed this paper, connects downstream task to drive be optimized. Firstly, cross-modality transformer module designed learn rich hierarchical feature representations. Secondly, semantic-driven developed enhance key features prominent targets. Thirdly, weighted strategy adopted automatically adjust weights different modality features. This effectively merges thermal characteristics detailed images. Additionally, we design refined loss function that employs decoupling constrain pixel distributions produce more-natural evaluate robustness generalization method practical challenge applications, Maritime Infrared Visible (MIV) dataset created verified for maritime environmental perception, will made soon. experimental results public datasets practically collected MIV highlight notable strengths best-ranking among its counterparts. Of more importance, achieved over 96% target detection accuracy dominant high mAP@[50:95] value far surpasses all competitors.

Language: Английский

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Multi-Focus Image Fusion via PAPCNN and Fractal Dimension in NSST Domain

Mathematics, Journal Year: 2023, Volume and Issue: 11(18), P. 3803 - 3803

Published: Sept. 5, 2023

Multi-focus image fusion is a popular technique for generating full-focus image, where all objects in the scene are clear. In order to achieve clearer and fully focused effect, this paper, multi-focus method based on parameter-adaptive pulse-coupled neural network fractal dimension nonsubsampled shearlet transform domain was developed. The pulse coupled network-based rule used merge low-frequency sub-bands, dimension-based via multi-scale morphological gradient high-frequency sub-bands. inverse reconstruct fused coefficients, final generated. We conducted comprehensive evaluations of our algorithm using public Lytro dataset. proposed compared with state-of-the-art algorithms, including traditional deep-learning-based approaches. quantitative qualitative demonstrated that outperformed other as evidenced by metrics data such QAB/F, QE, QFMI, QG, QNCIE, QP, QMI, QNMI, QY, QAG, QPSNR, QMSE. These results highlight clear advantages fusion, providing significant contribution field.

Language: Английский

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Research on Infrared and Visible Image Fusion

Computer Science and Application, Journal Year: 2023, Volume and Issue: 13(08), P. 1569 - 1575

Published: Jan. 1, 2023

Language: Английский

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SRFusion An infrared and visible images fusion methodbased on structural reparameterization

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 12, 2024

Fusion of infrared and visible images amalgamates their respective advantages while circumventingtheir drawbacks, thereby retaining the intricate details present in spectrum augment-ing thermal radiation information inherent domain. However, few studies havefocused on balance between algorithm speed fused image quality complex lighting condi-tions, which is critical for downstream tasks. To this end, we propose An imagesfusion method based structural reparameterization, named SRFusion. The innovativelyintegrates a Structural Reparameterization Module (SRM), adeptly extracting processing featuresfrom input with exceptional efficiency. methodology bifurcates extracted featuresinto distinct components, are then recombined through sequence convolutional operationsto produce image. Notably, SRM operates multi-branch architecture during thetraining phase, optimizing performance, transitions to streamlined, branch-free topology forinference, enhancing computational A comparative analysis most advanced fusionmethods has demonstrated that SRFusion not only achieves SOTA performance metricsof fusion image, but also delivers more level detail better visual perception human.

Language: Английский

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