The article examines the role and place of Earth remotesensing (ERS) in geographic information systems. The stages of development of remotesensing and geoinformatics are given, as well as a brief overview of Russian...
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The article examines the role and place of Earth remotesensing (ERS) in geographic information systems. The stages of development of remotesensing and geoinformatics are given, as well as a brief overview of Russian means of obtaining, receiving, and processing satellite images. The specifics and tasks of processingremotesensing data, including hyperspectral data, as well as the experience of using remotesensing data and geoinformation to solve practical problems of managing the territory of the Samara oblast are considered.
Ship object detection and recognition in remotesensingimages (RSIs) is a challenging task due to the multi-scale and complex background characteristics of ship objects. Currently, convolution-based methods cannot ad...
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Ship object detection and recognition in remotesensingimages (RSIs) is a challenging task due to the multi-scale and complex background characteristics of ship objects. Currently, convolution-based methods cannot adequately solve these problems. Firstly, this paper first applies the diffusion model to the task of ship object detection and recognition in RSIs, and proposes a new diffusion model for multi-scale ship object detection and recognition in remotesensingimages (MSDiffDet). Secondly, in order to reduce the loss of multi-scale information in the feature extraction process, this paper proposes the Channel Fusion FPN (CF-FPN) based on FPN and constructs the Large-Scale Feature Enhancement Module (LSFEM), which further enhances the algorithm's ability to extract large-scale ship object features and improves the detection accuracy of ship objects in RSIs. Finally, this paper prunes and reconstructs MobileNetV2 to obtain the Sparse MobileNetV2, which is used as the backbone network of the image encoder, which enhances detection accuracy while reducing the overall parameter count of the algorithm. The experimental results demonstrate that the MSDiffDet algorithm is effective in detecting and recognizing four types of remotesensing ship objects: aircraft carriers, warships, commercial ships, and submarines. The mAP0.5\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$mAP_{0.5}$$\end{document} achieved a notable 89.8%. A significant improvement of 5.8% in mAP0.5\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$mAP_{0.5}$$\end{document} is observed compared to the DiffusionDet algorithm, indicating the potentia
Multimodal remotesensingimagerecognition is a popular research topic in the field of remotesensing. This recognition task is mostly solved by supervised learning methods that heavily rely on manually labeled data....
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Multimodal remotesensingimagerecognition is a popular research topic in the field of remotesensing. This recognition task is mostly solved by supervised learning methods that heavily rely on manually labeled data. When the labels are absent, the recognition is challenging for the large data size, complex land-cover distribution and large modality spectrum variation. In this paper, a novel unsupervised method, named fast projected fuzzy clustering with anchor guidance (FPFC), is proposed for multimodal remotesensingimagery. Specifically, according to the spatial distribution of land covers, meaningful superpixels are obtained for denoising and generating high-quality anchor. The denoised data and anchors are projected into the optimal subspace to jointly learn the shared anchor graph as well as the shared anchor membership matrix from different modalities in an adaptively weighted manner to accelerate the clustering process. Finally, the shared anchor graph and shared anchor membership matrix are combined to derive clustering labels for all pixels. An effective alternating optimization algorithm is designed to solve the proposed formulation. This is the first attempt to propose a soft clustering method for large-scale multimodal remotesensing data. Experiments show that the proposed FPFC achieves 81.34%, 55.43% and 93.34% clustering accuracies on the three datasets and outperforms the state-of-the-art methods.
In order to effectively exploit foreground object structures in remotesensing scene recognition, it is crucial to hierarchically parse foreground objects and learn invariant feature representation by adding an equiva...
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In order to effectively exploit foreground object structures in remotesensing scene recognition, it is crucial to hierarchically parse foreground objects and learn invariant feature representation by adding an equivariant regularization (ER) term to the graph capsule network. Traditionally such equivariance is constructed using group convolutions, which become intractable when composing complex transformations, leading to increased inference time. In addition, global average pooling (GAP) can result in the loss of useful information in the captured features. To deal with this issue, we propose an equivariant attention graph capsule network (EA-GraCaps) in this letter. EA-GraCaps can progressively learn important cues of foreground objects and model potential spatial relations among parts in a transformation equivariance fashion. Specifically, the intragroup capsule layer is first fed to the graph pooling module for preliminary voting, then the intergroup capsules are input into the dual mixing attention (MA) module to refine the votes for coincidence filtering. With this formulation, our approach can characterize spatial hierarchies between object parts and improve the discriminative ability of class capsules. Experimental results demonstrate that the proposed EA-GraCaps can yield superior classification performance on three widely used benchmarks.
The optical neural network system based on the 4f system (4f-ONN) is a feasible solution for on -orbit real-time target detection and recognition on remotesensingimages, as it can directly modulate and encode the tw...
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The optical neural network system based on the 4f system (4f-ONN) is a feasible solution for on -orbit real-time target detection and recognition on remotesensingimages, as it can directly modulate and encode the twodimensional image information. However, traditional 4f systems based on spatial light modulators (SLMs) often encounter misalignment errors during assembly due to the reflective optical path used in SLMs. Additionally, implementing electronic SLM in space -based applications introduces problems such as particle number reversal, significantly reducing the reliability of the system. To address these issues, this paper proposes the adoption of diffractive optical elements (DOEs) to construct the 4f-ONN system. The DOE -based design offers a more compact structure, enhanced reliability, and reduced energy consumption, making it highly suitable for on -orbit imageprocessing applications. Due to the expensive and time-consuming nature of the DOE manufacturing process, a design approach for a 4f system based on DOE was pursued through software simulation in this paper. The simulation phase involved the utilization of electronic neural networks to acquire the physical parameters of the DOE mask, while incorporating the array theorem and Fraunhofer diffraction theorem to accurately calculate the physical dimensions of the DOE. The effectiveness of the adopted DOE -based 4f system was initially validated through experiments on a simple pattern dataset. Subsequently, simulation experiments were conducted on three public datasets, namely Mnist, Fashion-mnist, and QuickDraw16, to confirm the efficacy of the DOE -based 4f system in classification tasks. Lastly, target recognition experiments were performed on the GF-2 dataset, and a corresponding hardware system was developed to demonstrate the potential of the DOE -based 4f system in on -orbit imageprocessing.
Hazy images often lead to problems such as loss of image details and dull colors, which significantly affects the information extraction of remotesensingimages, so it is necessary to research image dehazing. In the ...
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ISBN:
(纸本)9789819985364;9789819985371
Hazy images often lead to problems such as loss of image details and dull colors, which significantly affects the information extraction of remotesensingimages, so it is necessary to research image dehazing. In the field of remotesensing, remotesensingimages are characterized by large-size and rich information, so the processing of remotesensingimages often has the problems of GPU memory overflow and difficult removal of non-uniform haze. For remotesensingimage characteristics, an efficient and lightweight end-to-end dehazing method is proposed in this paper. We use the FA attention combined with smoothed dilated convolution instead as the main structure of the encoder, which can achieve imbalanced handling of hazy images with different levels of opacity while reducing parameter count. Channel weight fusion self-attention is added in the decoder part to realize the automatic learning and pixel-level processing of different receptive field features We tested the proposed method on both public datasets RESIDE and real large-size hazy remotesensingimages. The proposed method achieved satisfactory results in our experiments, which proves the effectiveness of the proposed method.
The intelligent segmentation of high-resolution remotesensing (HRS) image, also called as dense prediction task for HRS image, has been and will continue to be important research in the remotesensing community. In r...
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The intelligent segmentation of high-resolution remotesensing (HRS) image, also called as dense prediction task for HRS image, has been and will continue to be important research in the remotesensing community. In recent years, the growing wave of artificial intelligence (AI) technology has introduced innovative paradigms to this domain, yielding outstanding results and overcoming many challenges with conventional segmentation techniques. This paper provides a comprehensive review of these intelligent segmentation methodologies, including traditional patternrecognition, convolution neural network (CNN)-based, and Transformer-based techniques. However, the explosive but incomplete development of intelligent segmentation techniques also poses more challenges for earth observation experts, the most of which is the technical interpretability. Consequently, we consider these segmentation techniques in the aspect of explainable artificial intelligence (XAI). Data-centric XAI thinks the practical applications of the segmentation model while model-centric XAI will facilitate the understanding of decision-making processes and the adjustment of structural features. Moreover, this review identifies novel research questions and provides constructive insights and recommendations to HRS image segmentation tasks, which may shed new light on the intelligent segmentation methods within the remotesensingimage understanding community.
The segmentation of land and sea in remotesensingimagery is of great significance for coastline extraction and dynamic monitoring. Traditional coastline recognition and extraction methods based on spectral features ...
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The segmentation of land and sea in remotesensingimagery is of great significance for coastline extraction and dynamic monitoring. Traditional coastline recognition and extraction methods based on spectral features and imageprocessing can only generate limited image feature results when facing the complex textures and spatial distributions of high-spatial resolution remotesensingimages, leading to low accuracy in segmentation outcomes. This paper applies a deep convolutional neural network to the problem of sea-land segmentation in high-spatial resolution remotesensingimages and innovates upon the classic encoder-decoder architecture. Firstly, to enhance the network's ability to distinguish coastlines, a dual attention mechanism is introduced into the UNet++ network to improve the learning capacity of coastline features while suppressing the learning of non-coastline features. Secondly, an improved joint loss function is adopted to enhance training effectiveness, thereby significantly improving the accuracy of semantic segmentation. Lastly, transfer learning is utilized to strengthen the detailed features of coastlines and enhance the network's ability to identify them. Experimental results using the GID dataset for coastline segmentation demonstrate that compared to the latest algorithms such as PSPNet, CS-Deeplab v3+, and UNet++, the improved UNet++ network achieves lower boundary blurriness and more accurate segmentation results for coastlines, with fewer missed and false detections. Amidst the proliferation of high-spatial resolution remotesensingimage data, the utilization of the enhanced UNet++ model for coastline extraction has demonstrated remarkable abilities in preserving boundary information and achieving superior semantic segmentation performance. This advancement enables a more refined extraction of spatial distributions, textures, and spectral features from these images, ultimately contributing to an improvement in classification accuracy.
Deep neural networks have emerged as the predominant technical approach for remotesensingimage interpretation and processing, surpassing traditional methods in various tasks such as target extraction, classification...
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